A Patient's Guide to Thoracic Disc Herniation

Introduction

A rise in the use of magnetic resonance imaging (MRI) has led to the discovery that many people, perhaps as many as 15 percent of Americans, have a thoracic disc herniation. Seeing a herniated thoracic disc on MRI is often incidental, meaning it shows up when the person has MRI testing for another problem.

Few people with a thoracic disc herniation feel any symptoms or have any problems as a result of this condition. In rare cases when symptoms do arise, the main concern is whether the herniated disc is affecting the spinal cord.

Although people often refer to a thoracic disc herniation as a slipped disc, the disc doesn't actually slip out of place. Rather, the term herniation means that the material in the center of the disc has squeezed out of the normal space. In the thoracic spine, this condition mostly affects people between 40 and 60 years old.

This guide will help you understand

• how the problem develops
• how doctors diagnose the condition
• what treatment options are available

Anatomy

What parts of the spine are involved?

The human spine is formed by 24 spinal bones, called vertebrae. Vertebrae are stacked on top of one another to create the spinal column. The main section of each vertebra is a round block of bone, called the vertebral body.

The thoracic spine is made up of the middle 12 vertebrae. Doctors often refer to these vertebrae as T1 to T12. The thoracic spine starts at the base of the neck. The lowest vertebra of the thoracic spine, T12, connects below the bottom of the rib cage to the first vertebra of the lumbar spine, called L1.

The upper half of the thoracic spine is much less mobile than the lower section, making disc herniations in the upper thoracic spine rare. About 75 percent of thoracic disc herniations occur from T8 to T12, with the majority affecting T11 and T12.

The intervertebral disc is a specialized connective tissue structure that separates the vertebral bodies. The disc is made of two parts. The center, called the nucleus, is spongy. It provides most of the disc's ability to absorb shock. The nucleus is held in place by the annulus, a series of ligament rings surrounding it. Ligaments are strong connective tissues that attach bones to other bones.

Healthy discs work like shock absorbers to cushion the spine. They protect the spine against the daily pull of gravity and during activities that put strong force on the spine, such as jumping, running, and lifting.

The spinal canal is a hollow tube inside the spinal column. It surrounds the spinal cord as it passes through the spine. The spinal cord is similar to a long wire made up of millions of nerve fibers. Just as the skull protects the brain, the bones of the spinal column protect the spinal cord. The spinal canal is narrow in the thoracic spine. Any condition that takes up extra space inside this canal can injure the spinal cord.

Blood vessels that run up and down the spine nourish the spinal cord. However, only one vessel, the anterior spinal artery, goes to the front of the spinal cord in the area between T4 and T9. Doctors call this section of the spine the critical zone. If this single vessel is damaged, as can happen with pressure from a herniated thoracic disc, the spinal cord has no other way to get blood. Left untreated, this section of the spinal cord dies, which can lead to severe problems of weakness or paralysis below the waist.

Related Document: A Patient's Guide to Thoracic Spine Anatomy

Causes

Why do I have this problem?

Thoracic disc herniations are mainly caused by wear and tear in the disc. This wear and tear is known as degeneration. As a disc's annulus ages, it tends to crack and tear. These injuries are repaired with scar tissue. Over time the annulus weakens, and the nucleus may squeeze (herniate) through the damaged annulus. Spine degeneration is common in T11 and T12. T12 is where the thoracic and lumbar spine meet. This link is subject to forces from daily activity, such as bending and twisting, which lead to degeneration. Not surprisingly, most thoracic disc herniations occur in this area.

Less commonly, a thoracic disc may herniate suddenly (an acute injury). A thoracic disc may herniate during a car accident or a fall. A thoracic disc may also herniate as a result of a sudden and forceful twist of the mid-back.

Diseases of the thoracic spine may lead to thoracic disc herniation. Patients with Scheuermann's disease, for example, are more likely to suffer thoracic disc herniations. It appears these patients often have more than one herniated disc, though the evidence is not conclusive.

Related Document: A Patient's Guide to Scheuermann's Disease

The spinal cord may be injured when a thoracic disc herniates. The spinal canal of the thoracic spine is narrow, so the spinal cord is immediately in danger from anything that takes up space inside the canal. Most disc herniations in the thoracic spine squeeze straight back, rather than deflecting off to either side. As a result, the disc material is often pushed directly toward the spinal cord. A herniated disc can cut off the blood supply to the spinal cord. Discs that herniate into the critical zone of the thoracic spine (T4 to T9) can shut off blood from the one and only blood vessel going to the front of the spinal cord in this section of the spine. This can cause the nerve tissues in the spinal cord to die, leading to severe problems of weakness or paralysis in the legs.

Symptoms

What does the condition feel like?

Symptoms of thoracic disc herniation vary widely. Symptoms depend on where and how big the disc herniation is, where it is pressing, and whether the spinal cord has been damaged.

Pain is usually the first symptom. The pain may be centered over the injured disc but may spread to one or both sides of the mid-back. Also, patients commonly feel a band of pain that goes around the front of the chest. Patients may eventually report sensations of pins, needles, and numbness. Others say their leg or arm muscles feel weak. Disc material that presses against the spinal cord can also cause changes in bowel and bladder function.

Disc herniations can affect areas away from the spine. Herniations in the upper part of the thoracic spine can radiate pain and other sensations into one or both arms. If the herniation occurs in the middle of the thoracic spine, pain can radiate to the abdominal or chest area, mimicking heart problems. A lower thoracic disc herniation can cause pain in the groin or lower limbs and can mimic kidney pain.

Diagnosis

How do doctors diagnose the problem?

Diagnosis begins with a complete history and physical examination. Your doctor will ask questions about your symptoms and how your problem is affecting your daily activities. These include questions about where you feel pain, if you have numbness or weakness in your arms or legs, and if you are having any problems with bowel or bladder function. Your doctor will also want to know what positions or activities make your symptoms worse or better.

Then the doctor examines you to see which back movements cause pain or other symptoms. Your skin sensation, muscle strength, and reflexes are also tested.

X-rays show the bones. They normally don't show the discs, unless one or more of the discs have calcified. This is significant in the diagnosis of thoracic disc herniation. A calcified disc that appears on X-ray to poke into the spinal canal is a fairlyreliable sign that the disc has herniated. It isn't clear why a problem thoracic disc sometimes hardens from calcification, though past injury of the disc is one possibility.

The best way to diagnose a herniated thoracic disc is with magnetic resonance imaging (MRI). The MRI machine uses magnetic waves rather than X-rays to show the soft tissues of the body. It gives a clear picture of the discs and whether one has herniated. This machine creates pictures that look like slices of the area your doctor is interested in. The test does not require dye or a needle. This test has shown doctors that many people without symptoms have thoracic disc herniations. This has led some doctors to suggest that thoracic disc herniations not causing symptoms are normal.

Before MRI, doctors relied mainly on myelography to diagnose thoracic disc herniations. By itself, myelography only helps diagnose this condition in about half the cases. Myelography is a kind of X-ray test. A special dye is injected into the space around the spinal canal. The dye shows up on an X-ray. It helps a doctor see if the disc is pushing into the spinal canal.

Computed tomography (CT scan) may be ordered. This is a detailed X-ray that lets doctors see the body's tissue in images that also look like slices. The images provide more information about calcified discs. Doctors may combine the CT scan with myelography. When the CT scan is performed, the myelography dye highlights the spinal cord and nerves. The dye can improve the accuracy of a standard CT scan for diagnosing a herniated thoracic disc.

Doctors rely mostly on MRI for diagnosing thoracic disc herniations. However, they may use myelography and CT scans when preparing to do surgery to fix a herniated thoracic disc.

Treatment

What treatment options are available?

Nonsurgical Treatment

Doctors closely monitor patients with symptoms from a thoracic disc herniation, even when the size of the herniation is small. If the disc starts to put pressure on the spinal cord or on the blood vessels going to the spinal cord, severe neurological symptoms can develop rapidly. In these cases, surgery is needed right away. However, unless your condition is affecting the spinal cord or is rapidly getting worse, most doctors will begin with nonsurgical treatment.

At first, your doctor may recommend immobilizing your back. Keeping the back still for a short time can calm inflammation and pain. This might include one to two days of bed rest, since lying on your back can take pressure off sore discs and nerves. However, most doctors advise against strict bed rest and prefer their patients do ordinary activities, using pain to gauge how much activity is too much. Another option for immobilizing the back is a back support brace worn for up to one week.

Doctors prescribe certain types of medication for patients with thoracic disc herniation. Patients may be prescribed anti-inflammatory medications such as aspirin or ibuprofen. Muscle relaxants may be prescribed if the back muscles are in spasm. Pain that spreads into the arms or legs is sometimes relieved with oral steroids taken in tapering dosages.

Your doctor will probably have a physical therapist direct your rehabilitation program. Therapy treatments focus on relieving pain, improving back movement, and fostering healthy posture. A therapist can design a rehabilitation program for your condition that helps you prevent future problems.

Most people with a herniated thoracic disc get better without surgery. Doctors usually have their patients try nonoperative treatment for at least six weeks before considering surgery.

Surgery

Surgeons may recommend surgery if patients aren't getting better with nonsurgical treatment, or if the problem is becoming more severe.

When there are signs that the herniated disc is affecting the spinal cord, surgery may be required, sometimes right away. The signs surgeons watch for when reaching this decision include weakening in the arm or leg muscles, pain that won't ease up, and problems with the bowels or bladder.

Surgical treatment for this condition includes

• costotransversectomy and discectomy
• transthoracic decompression
• video assisted thoracoscopy surgery (VATS)
• fusion

Costotransversectomy

Surgeons use costotransversectomy to open a window through the bones that cover the injured disc. Operating from the back of the spine, the surgeon takes out a small section on the end of two or more ribs where they connect to the spine. (Costo means rib.) Then the bony knob on the side of the vertebra (the transverse process) is removed. (Ectomy means to remove.) This opens a space for the surgeon to work. The injured portion of the disc that is pressing against the spinal cord is removed (discectomy) with small instruments. Surgeons take extreme care not to harm the spinal cord.

Transthoracic Decompression

Transthoracic describes the approach used by the surgeon. Trans means across or through. The thoracic region is the chest. So in transthoracic decompression, the surgeon operates through the chest cavity to reach the injured disc. This approach gives the surgeon a clear view of the disc.

With the patient on his or her side, the surgeon cuts a small opening through the ribs on the side of the thorax (the chest). Instruments are placed through the opening, and the herniated part of the disc is taken out. This takes pressure off the spinal cord (decompression).

Video Assisted Thoracoscopy Surgery (VATS)

Recent developments in thoracic surgery include video assisted thoracoscopy surgery (VATS). This procedure is done with a thoracoscope, a tiny television camera that can be inserted into the side of the thorax through a small incision. The camera allows the surgeon to see the area where he or she is working on a TV screen. Small incisions give passage for other instruments used during the surgery. The surgeon watches the TV screen while cutting and removing damaged portions of the disc.

Categorized as minimally invasive surgery, VATS is thought to be less taxing on patients. Advocates also believe that this type of surgery is easier to perform, prevents scarring around the nerves and joints, and helps patients recover more quickly.

Fusion

After removing part or all of the disc, the spine may be loose and unstable. Fusion surgery may be needed immediately afterward. The medical term for fusion is arthrodesis. This procedure locks the vertebrae in place and stops movement between the vertebrae. This steadies the bones and can ease pain. Fusion surgery is not usually needed if only a small amount of bone and disc material was removed during surgery to fix a herniated thoracic disc.

In this procedure, the surgeon lays small grafts of bone over or between the loose spinal bones. Surgeons may use a combination of screws, cables, and rods to prevent the vertebrae from moving and allow the graft to heal.

Rehabilitation

What should I expect as I recover?

Nonsurgical Rehabilitation

Even if you don't need surgery, your doctor may recommend that you work with a physical therapist. Patients are normally seen a few times each week for four to six weeks.

The first goals of treatment are to control symptoms, find positions that ease pain, and teach you how to keep your spine safe during routine activities.

As patients recover, they gradually advance in a series of strengthening exercises. Aerobic exercises, such as walking or swimming, can ease pain and improve endurance.

After Surgery

Rehabilitation after surgery is more complex. Some patients leave the hospital shortly after surgery. However, some surgeries require patients to stay in the hospital for a few days. Patients who stay in the hospital may be visited by a physical therapist soon after surgery. The treatment sessions help patients learn to move and do routine activities without putting extra strain on the back.

During recovery from surgery, patients should follow their surgeon's instructions about wearing a back brace or support belt. They should be cautious about overdoing activities in the first few weeks after surgery.

Many surgical patients need physical therapy outside of the hospital. They see a therapist for one to three months, depending on the type of surgery. At first, therapists may use treatments such as heat or ice, electrical stimulation, massage, and ultrasound to calm pain and muscle spasm. Then they teach patients how to move safely with the least strain on the healing back.

As patients recover, they gradually begin doing flexibility exercises for the hips and shoulders. Mobility exercises are also started for the back. Strengthening exercises address the back muscles. Patients may work with the therapist in a pool. Patients progress with exercises to improve endurance, muscle strength, and body alignment.

As the rehabilitation program evolves, patients do more challenging exercises. The goal is to safely advance strength and function.

Ideally, patients are able to go back to their previous activities. However, some patients may need to modify their activities to avoid future problems.

When treatment is well under way, regular visits to the therapist's office will end. The therapist will continue to be a resource. But patients are in charge of doing their exercises as part of an ongoing home program.

Patient's Guide

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A Patient's Guide to Lumbar Degenerative Disc Disease

Introduction

The intervertebral discs in the lower spine are commonly blamed for low back pain. Yet low back pain has many possible causes, and doctors aren't always certain why symptoms occur.

During an office visit for low back pain, your doctor may describe how changes in the discs can lead to back pain. When talking about these changes, your doctor may use the terms degeneration or degenerative disc disease. Although the parts of the spine do change with time and in some sense degenerate, this does not mean the spine is deteriorating and that you are headed for future pain and problems. These terms are simply a starting point for describing what occurs in the spine over time, and how the changes may explain the symptoms people feel.

This guide will help you understand

• how degenerative disc disease develops
• how doctors diagnose the condition
• what treatment options are available

Anatomy

What parts of the spine are involved?

The human spine is made up of 24 spinal bones, called vertebrae. Vertebrae are stacked on top of one another to form the spinal column. The spinal column gives the body its form. It is the body's main upright support. The section of the spine in the lower back is known as the lumbar spine.

An intervertebral disc sits between each pair of vertebrae. The intervertebral disc is made of connective tissue. Connective tissue is the material that holds the living cells of the body together. Most connective tissue is made of fibers of a material called collagen. These fibers help the disc withstand tension and pressure.

The disc normally works like a shock absorber. It protects the spine against the daily pull of gravity. It also protects the spine during strenuous activities that put strong force on the spine, such as jumping, running, and lifting.

An intervertebral disc is made of two parts. The center, called the nucleus, is spongy. It provides most of the disc's ability to absorb shock. The nucleus is held in place by the annulus, a series of strong ligament rings surrounding it. Ligaments are connective tissues that attach bones to other bones.

Between the vertebrae of each spinal segment are two facet joints. The facet joints are located on the back of the spinal column. There are two facet joints between each pair of vertebrae, one on each side of the spine. A facet joint is made of small, bony knobs that line up along the back of the spine. Where these knobs meet, they form a joint that connects the two vertebrae. The alignment of the facet joints of the lumbar spine allows freedom of movement as you bend forward and back.

Related Document: A Patient's Guide to Lumbar Spine Anatomy

Causes

Why do I have this problem?

Our intervertebral discs change with age, much like our hair turns gray. Conditions such as a major back injury or fracture can affect how the spine works, making the changes happen even faster. Daily wear and tear and certain types of vibration can also speed up degeneration in the spine. In addition, strong evidence suggests that smoking speeds up degeneration of the spine. Scientists have also found links among family members, showing that genetics play a role in how fast these changes occur.

Disc degeneration follows a predictable pattern. First, the nucleus in the center of the disc begins to lose its ability to absorb water. The disc becomes dehydrated. Then the nucleus becomes thick and fibrous, so that it looks much the same as the annulus. As a result, the nucleus isn't able to absorb shock as well. Routine stress and strain begin to take a toll on the structures of the spine. Tears form around the annulus. The disc weakens. It starts to collapse, and the bones of the spine compress.

View animation of degeneration

Related Document: A Patient's Guide to Low Back Pain

This degeneration does not always mean the disc becomes a source of pain. In fact, X-rays and MRI scans show that people with severe disc degeneration don't always feel pain.

Pain caused by degenerative disc disease is mainly mechanical pain, meaning it comes from the parts of the spine that move during activity: the discs, ligaments, and facet joints. Movement within the weakened structures of the spine causes them to become irritated and painful.

Symptoms

What does the condition feel like?

Pain in the center of the low back is often the first symptom patients feel. It usually starts to affect patients in their twenties and thirties. Pain tends to worsen after heavy physical activity or staying in one posture for a long time. The back may also begin to feel stiff. Resting the back eases pain. At first, symptoms only last a few days.

This type of back pain often comes and goes over the years. Doctors call this recurring back pain. Each time it strikes, the pain may seem worse than the time before. Eventually the pain may spread into the buttocks or thighs, and it may take longer for the pain to subside.

Diagnosis

How do doctors diagnose the problem?

Diagnosis begins with a complete history and physical exam. Your doctor will ask questions about your symptoms and how your problem is affecting your daily activities. Your doctor will also want to know what positions or activities make your symptoms worse or better.

Then the doctor does a physical examination by checking your posture and the amount of movement in your low back. Your doctor checks to see which back movements cause pain or other symptoms. Your skin sensation, muscle strength, and reflexes are also tested.

Doctors rely on the history and physical exam to determine which treatments will help the most. X-rays are rarely ordered on the first doctor visit for this problem. This is because over 30 percent of low back X-rays show abnormalities from degeneration, even in people who aren't having symptoms.

However, if symptoms are severe and aren't going away, the doctor may order an X-ray. The test can show if one or more discs has started to collapse. It can also show if there are bone spurs in the vertebrae and facet joints. Bone spurs are small points of bone that form with degeneration.

When more information is needed, your doctor may order a magnetic resonance imaging (MRI) scan. The MRI machine uses magnetic waves rather than X-rays to show the soft tissues of the body. It is helpful for showing if the tissues in the disc are able to absorb water and whether there are cracks inside the disc. It can also show if there are problems in other soft tissues, such as the spinal nerves.

Discography can help with the diagnosis. This is a specialized X-ray test in which dye is injected into one or more discs. The dye is seen on X-ray and can give some information about the health of the disc or discs. This test may be done when the surgeon is considering surgery, since it can help determine which disc is causing the symptoms.

Treatment

What treatment options are available?

Nonsurgical Treatment

Whenever possible, doctors prefer treatment other than surgery. The first goal of nonsurgical treatment is to ease pain and other symptoms so the patient can resume normal activities as soon as possible.

Doctors rarely prescribe bed rest for patients with degenerative disc problems. Instead, patients are encouraged to do their normal activities using pain as a gauge for how much is too much. If symptoms are severe, a maximum of two days of bed rest may be prescribed.

Back braces are sometimes prescribed. Keeping the moving parts of the low back still can help calm mechanical pain. When a doctor issues a brace, he or she normally asks that the patient only wear it for two to four days. This lessens the chance that the trunk muscles will shrink (atrophy) from relying on the belt.

Patients may also be prescribed medication to help them gain control of their symptoms so they can resume normal activity swiftly.

If symptoms continue to limit a person's ability to function normally, the doctor may suggest an epidural steroid injection (ESI). Steroids are powerful anti-inflammatories, meaning they help reduce pain and swelling. In an ESI, medication is injected into the space around the lumbar nerve roots. This area is called the epidural space. Some doctors inject only a steroid. Most doctors, however, combine a steroid with a long-lasting numbing medication. Generally, an ESI is given only when other treatments aren't working. But ESIs are not always successful in relieving pain. If they do work, they often only provide temporary relief.

In addition, patients often work with a physical therapist. After evaluating a patient's condition, the therapist can assign positions and exercises to ease symptoms. The therapist can design an exercise program to improve flexibility of tight muscles, to strengthen the back and abdominal muscles, and to help a patient move safely and with less pain.

Surgery

People with degenerative disc problems tend to gradually improve over time. Most do not need surgery. In fact, only one to three percent of patients with degenerative disc problems typically require surgery.

Doctors prefer to try nonsurgical treatment for a minimum of three months before considering surgery. If, after this period, nonsurgical treatment hasn't improved symptoms, the doctor may recommend surgery. The main types of surgery for degenerative disc problems include

• lumbar laminectomy
• discectomy
• fusion

Lumbar Laminectomy

The lamina forms a roof-like structure over the back of the spinal column. When the nerves in the spinal canal are squeezed by a degenerated disc or by bone spurs pushing into the canal, a laminectomy removes most, or all of the lamina to release pressure on the spinal nerves.

Related Document: A Patient's Guide to Lumbar Laminectomy

Discectomy

Surgery to take out part or all of a problem disc in the low back is called discectomy. Discectomy is done when the degenerated disc has ruptured (herniated) into the spinal canal, putting pressure on the spinal nerves. Surgeons commonly perform this operation through an incision in the low back. Before the disc material can be removed, the surgeon must first remove part of the lamina. Generally, only a small piece of the lamina is chipped away to expose the problem disc. This is called laminotomy. It usually creates enough room for the surgeon to remove the disc. If more room is needed, the surgeon may need to take out a larger section of the lamina by doing a laminectomy (described above).

Many surgeons now do minimally invasive surgeries that require only small incisions in the low back. These procedures are used to remove damaged portions of the problem disc. Advocates believe that this type of surgery is easier to perform. They also believe it prevents scarring around the nerves and joints and helps patients recover more quickly. Minimally invasive surgeries include percutaneous lumbar discectomy, laser discectomy, and microdiscectomy.

Related Document: A Patient's Guide to Lumbar Discectomy

Fusion

Fusion surgery joins two or more bones into one solid bone. This prevents the bones and joints from moving. The procedure is sometimes done with a discectomy. Mechanical pain is eased because the fusion holds the moving parts steady, so they can't cause irritation and inflammation.

The main types of fusion for degenerative disc problems include

• anterior lumbar interbody fusion
• posterior lumbar fusion
• combined fusion

Anterior Lumbar Interbody Fusion

Anterior lumbar interbody fusion surgery is done through the abdomen, allowing the surgeon to work on the anterior (front) of the lumbar spine. Removing the disc (discectomy) leaves a space between the pair of vertebrae. This interbody space is filled with a bone graft. One method is to take a graft from the pelvic bone and tamp it into place. Another method involves inserting two hollow titanium screws packed with bone, called fusion cages, into the place where the disc was taken out. The bone graft inside the cages fuses with the adjacent vertebrae, forming one solid bone.

Related Document: A Patient's Guide to Anterior Lumbar Fusion with Cages

Posterior Lumbar Fusion

A posterior lumbar fusion is done though an incision in the back. In this procedure, the surgeon lays small grafts of bone over the problem vertebrae. Most surgeons will also apply metal plates and screws to hold the vertebrae in place while they heal. This protects the graft so it can heal better and faster.

Related Document: A Patient's Guide to Posterior Lumbar Fusion

Combined Fusion

A combined fusion involves fusing the anterior (front) and posterior (back) surfaces of the problem vertebrae. By locking the vertebrae from the front and back, some surgeons believe the graft stays solid and is prevented from collapsing. Results do show improved fusion of the graft, though patients seem to fare equally well with other methods of fusion.

Rehabilitation

What should I expect as I recover?

Nonsurgical Rehabilitation

Your doctor may recommend that you work with a physical therapist a few times each week for four to six weeks. In some cases, patients may need a few additional weeks of care.

The first goal of treatment is to control symptoms. Your therapist will work with you to find positions and movements that ease pain. The therapist may use heat, cold, ultrasound, and electrical stimulation to calm pain and muscle spasm.

The therapist may perform hands-on treatments such as massage and specialized forms of soft-tissue mobilization. These can help a patient begin moving with less pain and greater ease. Spinal manipulation provides short-term relief of degenerative disc symptoms. Commonly thought of as an adjustment, spinal manipulation helps reset the sensitivity of the spinal nerves and muscles, easing pain and improving mobility. It involves a high-impulse stretch of the spinal joints and is characterized by the sound of popping as the stretch is done. It doesn't provide effective long-term help when used routinely for chronic conditions.

Traction is also a common treatment for degenerative disc problems. Traction gently stretches the low back joints and muscles. Patients are also shown stretches to help them move easier and with less pain.

As you recover, you will gradually advance in a series of strengthening exercises for the abdominal and low back muscles. Working these core muscles helps patients move more easily and lessens the chances of future pain and problems.

A primary purpose of therapy is to help you learn how to take care of your symptoms and prevent future problems. You'll be given a home program of exercises to continue improving flexibility, posture, endurance, and low back and abdominal strength. The therapist will also discuss strategies you can use if your symptoms flare up.

After Surgery

Rehabilitation after surgery is more complex. Some patients leave the hospital shortly after surgery. However, some surgeries require patients to stay in the hospital for a few days. Patients who stay in the hospital may visit with a physical therapist in the hospital room soon after surgery. The treatment sessions help patients learn to move and do routine activities without putting extra strain on their backs.

During recovery from surgery, patients should follow their surgeon's instructions about wearing a back brace or support belt. They should be cautious about overdoing activities in the first few weeks after surgery.

Many surgical patients need physical therapy outside of the hospital. Patients who've had lumbar fusion surgery normally need to wait up to three months before beginning a rehabilitation program. They typically need to attend therapy sessions for eight to 12 weeks and should expect full recovery to take up to six months.

A Patient's Guide to Whiplash

Introduction

Whiplash is defined as a sudden extension of the cervical spine (backward movement of the neck) and flexion (forward movement of the neck). This type of trauma is also referred to as a cervical acceleration-deceleration (CAD) injury. Rear-end or side-impact motor vehicle collisions are the number one cause of whiplash with injury to the muscles, ligaments, tendons, joints, and discs of the cervical spine.

This guide will help you understand

• what parts make up the spine and neck
• what causes this condition
• how doctors diagnose this condition
• what treatment options are available

Anatomy

What parts of the spine are involved?

The human spine is made up of 24 spinal bones, called vertebrae. Vertebrae are stacked on top of one another to form the spinal column. The spinal column is the body's main upright support.

The cervical spine is formed by the first seven vertebrae referred to as C1 to C7. The cervical spine starts where the top vertebra (C1) connects to the bottom edge of the skull. The cervical spine curves slightly inward and ends where C7 joins the top of the thoracic spine. This is where the chest begins.

A bony ring attaches to the back of the vertebral body. When the vertebrae are stacked on top of each other, the rings form a hollow tube. This bony tube surrounds the spinal cord as it passes through the spine. Just as the skull protects the brain, the bones of the spinal column protect the spinal cord.

As the spinal cord travels from the brain down through the spine, it sends out nerve branches between each vertebrae called nerve roots. The nerve roots that come out of the cervical spine form the nerves that go to the arms and hands.

Two spinal nerves exit the sides of each spinal segment, one on the left and one on the right. As the nerves leave the spinal cord, they pass through a small bony tunnel on each side of the vertebra, called a neural foramen. (The term used to describe more than one opening is neural foramina.)

Each spinal segment includes two vertebrae separated by an intervertebral disc, the nerves that leave the spinal cord at that level, and the small facet joints that link each level of the spinal column.

An intervertebral disc is made of connective tissue. Connective tissue is the material that holds the living cells of the body together. The disc is a specialized connective tissue structure that separates the two vertebral bodies of the spinal segment. The disc normally works like a shock absorber. It protects the spine against the daily pull of gravity. It also protects the spine during activities that put strong force on the spine, such as jumping, running, and lifting.

An intervertebral disc is made up of two parts. The center, called the nucleus, is spongy. It provides most of the ability to absorb shock. The nucleus is held in place by the annulus, a series of strong ligament rings surrounding it. Ligaments are strong connective tissues that attach bones to other bones.

There are two facet joints between each pair of vertebrae--one on each side of the spine. The surfaces of the facet joints are covered by articular cartilage. Articular cartilage is a smooth, rubbery material that covers the ends of most joints. It allows the bone ends to move against each other smoothly, without pain. The alignment of the facet joints of the cervical spine allows freedom of movement as you bend and turn your neck.

Related Document: A Patient's Guide to Cervical Spine Anatomy

Causes

What causes this condition?

When the head and neck are suddenly and forcefully whipped forward and back, mechanical forces place excessive stress on the cervical spine. Traumatic disc rupture and soft tissue damage can occur. The cartilage between the disc and the vertebral bone is often cracked. This is known as a rim lesion.

Damage to the disc can put pressure on the nerves as they exit the spine. The pressure or irritation can be felt as numbness on the skin, weakness in the muscles, or pain along the path of the nerve. Most people think of these symptoms as indications of a pinched nerve. Health care providers call this condition cervical radiculopathy.

Soft tissue around the facet joint can be injured. Many of the pain-sensing nerves of the spine are in the facet joints. The normally smooth surfaces on which these joints glide can become rough, irritated, and inflamed. Studies show that neck pain often comes from the damaged facet joints.

Low back pain is a common feature after a whiplash injury. Studies show that there is significant electrical activity in the muscles of the lumbar spine when the neck is extended. This effect increases when there is neck pain, possibly as a way to help stabilize the spine when neck pain causes weakness.

More than anyplace else in the body, the muscles of the neck sense sudden changes in tension and respond quickly. Tiny spindles in the muscles signal the need for more muscle tension to hold against the sudden shift in position.

The result is often muscle spasm as a self-protective measure. The increased muscle tone prevents motion of the inflamed joint. You may experience neck stiffness as a result.

Risk Factors

Each year, about three million people experience whiplash injuries to their neck and back. Of these three million people, only about one-half, will fully recover. About 600,000 of those individuals will have long-term symptoms, and 150,000 will actually become disabled as a result of the injury.

There are many factors that come into play when a person is injured in a rear-end motor vehicle accident. Any one or more of the following factors can affect recovery:

• Head turned one way or the other at the time of the impact (increases risk of nerve
  involvement with pain down the arm)
• Getting hit from behind (rear-impact collision)
• Previous neck pain or headaches
• Previous similar injury
• Being unaware of the impending impact
• Poor posture at the time of impact (head, neck, or chest bent forward)
• Poor position of the headrest or no headrest
• Crash speed under 10 mph
• Being in the front seat as opposed to sitting in the back seat of the car
• Collision with a vehicle larger than yours
• Being of slight build
• Wearing a seatbelt (a seat belt should always be worn, but at lower speeds, a lap and shoulder type seat belt will increase the chances of injury)

Symptoms

What are some of the symptoms of whiplash?

• Neck pain or neck pain that travels down the arm (radiculopathy)
• Headaches
• Low back pain (LBP)
• Jaw pain
• Dizziness

Ninety percent of patients involved in whiplash type accidents complain of neck pain. This is by far the most common symptom. The pain often spreads into the upper back, between the shoulder blades, or down the arm. Neck pain that goes down the arm is called radiculopathy.

Low back pain (LBP) can occur as a result of a whiplash injury. The Insurance Research Council reports that LBP occurs in 39 per cent of whiplash patients. Some studies found LBP to be present in 57 per cent of rear-impact collisions in which injuries were reported and 71 per cent of side-impact collisions.

Jaw pain as a result of temporomandibular joint (TMJ) injury can also cause painful headaches. The TMJ is formed by the bone of the mandible (lower jaw) connecting to the temporal bone at the side of the skull. The TMJ is a hinge joint that allows the jaw to open and close and to move forward, back, and sideways. Pain in this joint in called temporomandibular joint disorder (TMD).

Dizziness is quite common with a sense of lost balance being reported. It is caused by an injury to the joints of the neck called facet or zygapophyseal joints. When dizziness is reported, it should be distinguished from vertigo (also known as benign paroxysmal positional vertigo (BPPV), which results from an injury to the inner ear.

Other symptoms often reported include, but are not limited to: shoulder pain; numbness or tingling in the arms, hands, legs or feet; facial pain, fatigue, confusion, poor concentration, irritability, difficulty sleeping, forgetfulness, visual problems, and mood disorders.

It is not uncommon to have a delay in your symptoms. It is actually more common to have a 24 to 72 hour delay as opposed to immediate symptoms or pain. This is most likely due to the fact that it takes the body 24 to 72 hours to develop inflammation. Disc injuries may take even longer to manifest themselves. It is not uncommon for a disc injury to remain pain free and unnoticed for weeks to months.

Simply because there is little or no damage to your car does not mean that you were not injured. In fact, more than half of all whiplash injuries occur where there was little or no damage to one or both of the vehicles involved.

When we see visible damage to a car, it means that the car has absorbed much of that force and less force is transmitted to the occupant. On the other hand, if there is little or no damage to the car, the force is not absorbed but transferred to the driver or passengers, potentially resulting in greater injury.

Diagnosis

How do doctors diagnose the problem?

The diagnosis of neck problems begins with a thorough history of your condition and the involved car accident. You might be asked to fill out a questionnaire describing your neck problems. Then your doctor will ask you questions to find out when you first started having problems, what makes your symptoms better or worse, and how the symptoms affect your daily activity. Your answers will help guide the physical examination.

Your doctor will then physically examine the muscles and joints of your neck. It is important that your doctor see how your neck is aligned, how it moves, and exactly where it hurts.

Your doctor may do some simple tests to check the function of the nerves. These tests measure your arm and hand strength, check your reflexes, and help determine whether you have numbness in your arms, hands, or fingers.

The information from your medical history and physical examination will help your doctor decide which tests to order. The tests give different types of information.

Radiological Imaging

Radiological imaging tests help your doctor see the anatomy of your spine. There are many kinds of imaging tests including:

• X-rays
• Magnetic resonance imaging (MRI)
• Computed tomography (CT)
• Digital motion x-ray (DMX)
• Myelogram
• Bone Scan
• Electromyogram

X-rays

>X-rays show problems with bones, such as infection, bone tumors, or fractures. X-rays of the spine also can give your doctor information about how much degeneration has occurred in the spine, such as the amount of space in the neural foramina and between the discs.

X-rays are usually the first test ordered before any of the more specialized tests. Special x-rays called flexion/extension x-rays may help to determine if there is instability between vertebrae. These x-rays are taken from the side as you bend as far forward and then as far backward as you can. Comparing the two x-rays allows the doctor to see how much motion occurs between each spinal segment.

Magnetic resonance imaging (MRI)

If more information is needed, your doctor may order an MRI. The MRI machine uses magnetic waves rather than x-rays to create pictures of the cervical spine in slices. MRIs show the cervical spine vertebrae, as well as the soft tissue structures, such as the discs, joints, and nerves. MRI scans are painless and don't require needles or dye. MRI scan has become the most common test to look at the cervical spine after x-rays have been taken.

Computed Tomography (CT)

CT scan is a special type of x-ray that lets doctors see slices of bone tissue. The machine uses a computer and x-rays to create these slices. It is used primarily when problems are suspected in the bones.

Digital motion x-ray (DMX)

DMX is a new fluoroscopic based x-ray system designed to objectively detect and document soft tissue/ligament injury most commonly associated with whiplash injuries of the spine. DMX evaluates biomechanical relationships and abnormal movements of the cervical spine. Specifically, DMX:

• Shows abnormal movement of vertebral bodies, facets, and other spinal elements
• Shows joint hypermobility, hypomobility, or restriction
• Shows normal or abnormal initiation of cervical motion

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Click To Play

Example of DMX diagnostic video fluoroscopy.

DMX uses digital and optic technology now available. DMX is the latest generation of videofluoroscopy (VF) that uses low doses of radiation. The images have improved clarity and resolution over VF and are recorded digitally on CD or DVD disc. DMX digital images can be replayed and studied on standard computer systems. DMX images are simply x-ray images taken at 30 frames per second to form a multiple radiographic array or series that can be run as a movie file to display real time motion of the joints of the body.

DMX radiographic series can be paused at any location and the measurements and interpretation common to radiology can be applied to the still images. These images would be identical to plain film images if plain film radiography were performed at the same location at the same moment in motion. DMX acquires approximately 2700 images for the same amount of radiation as seven regular x-rays.

For more information visit http://www.dmxofmontana.com

Myelogram

The myelogram is a special kind of x-ray test where a special dye is injected into the spinal sac. The dye shows up on an x-ray. It helps a doctor see if there is a herniated disc, pressure on the spinal cord or spinal nerves, or a spinal tumor. Before the CT scan and the MRI scan were developed, the myelogram was the only test that surgeons had to look for a herniated disc. The myelogram is still used today but not nearly as often. The myelogram is usually combined with CT scan to give more detail.

Bone Scan

A bone scan is a special test where radioactive tracers are injected into your blood stream. The tracers then show up on special x-rays of your neck. The tracers build up in areas where bone is undergoing a rapid repair process, such as a healing fracture or the area surrounding an infection or tumor. Usually the bone scan is used to locate the problem and other tests such as the CT scan or MRI scan are then used to look at the area in detail.

Electromyogram (EMG)

An electromyogram (EMG) is a special test used to determine if there are problems with any of the nerves going to the upper limbs. EMGs are usually done to see if one or more nerve roots have been pinched by a herniated disc. During the test, small needles are placed into certain muscles that are supplied by each nerve root. If there has been a change in the function of the nerve, the muscle will send off different types of electrical signals. The EMG test reads these signals and can help determine which nerve root is involved.

Grading the Severity of Injury

The physical exam combined with the imaging studies help determine the severity or grade of the injury. There is more than one way to assign a grade to a patient’s whiplash. Here are two examples of the more commonly used models used to classify or grade whiplash injuries:

Croft Guidelines

• Grade I: Minimal – No limitation of motion, no ligamentous injury, no neurological findings
• Grade II: Slight – Slight limitation of motion, no ligamentous injury, no neurologic findings
• Grade III: Moderate – Limitation of motion, ligamentous instability, neurologic symptoms present
• Grade IV: Moderate-to-Severe – Limitation of motion, some ligamentous injury, neurological symptoms, fracture or disc derangement

Quebec Whiplash Classification

• Grade 0: No complaint or physical sign
• Grade I: Neck complaint of pain, stiffness or tenderness, no physical signs
• Grade II: Neck pain and musculoskeletal signs
• Grade III: Neck pain and neurological signs
• Grade IV: Neck pain and fracture or dislocation

Treatment

What treatment options are available?

Nonsurgical Treatment

Whenever possible, doctors prefer to use treatments other than surgery. The first goal of these nonsurgical treatments is to ease your pain and other symptoms.

Your health care providers will work with you to improve your neck movement and strength. They will also encourage healthy body alignment and posture. These steps are designed to enable you to get back to your normal activities. Conservative care may include:

• Immobilization
• Medication
• Injection
• Physical therapy
• Chiropractic care

Immobilization

At first, your doctor may prescribe immobilization of the neck. Keeping the neck still for a short time can calm inflammation and pain. This might include one to two days of bed rest and the use of a soft cervical (neck) collar.

The collar is a padded ring that wraps around the neck and is held in place by a Velcro strap. A soft cervical collar may be used for the first 24 to 48 hours to help provide support and reduce pain. There is no need for a hard or rigid cervical collar unless the neck is fractured.

Soft collars should not be worn after 48 hours without a physician’s approval. Studies show that prolonged immobilization can delay healing and promote disability. Wearing it longer tends to weaken the neck muscles and reduces the facet joints’ sense of position called proprioception.

A cervical support pillow may offer some additional support while sleeping and helps to keep the neck in a more neutral position. Cervical pillows can be used any time by anyone for improved alignment while sleeping.

Medication

Your doctor may prescribe certain types of medication if the nerves are irritated or compressed and you have neck pain that travels down your arm (radiculopathy). Severe symptoms may be treated with narcotic drugs, such as codeine or morphine. But these drugs should only be used for the first few days or weeks after problems with radiculopathy start because they are addictive when used too much or improperly. Muscle relaxants may be prescribed to calm neck muscles that are in spasm. You may be prescribed anti-inflammatory medications such as aspirin or ibuprofen.

Injection

Pain resulting from irritation of the facet joints may be alleviated with injection of an anesthetic agent similar to Novacaine such as Bipuvacaine. This numbing agent both confirms the source of pain as coming from the joint and helps reduce or eliminate the pain.

Physical Therapy

Some doctors have their patients work with a physical therapist. If you require outpatient physical therapy, you will probably only need to attend therapy sessions for two to four weeks. Your rate of recovery helps determine the length of time in physical therapy. Patients with delayed recovery may need longer time in rehab.

At first, treatment is focused on easing pain and reducing inflammation. Ice and electrical stimulation treatments are commonly used to help with these goals. Electrical stimulation treatments can help calm muscle spasm and pain. Traction is a way to gently stretch the joints and muscles of the neck. It can be done using a machine with a special head halter, or the therapist can apply the traction pull by hand. Your therapist may also use massage and other hands-on treatments to ease muscle spasm and pain.

Active treatments are added within the comfortable range of motion. The therapist will teach you specific exercises to help tone and control the muscles that stabilize the neck and upper back.

Your therapist will work with you on how to move and do activities. This form of treatment, called body mechanics, is used to help you develop new movement habits. This training helps you keep your neck in safe positions as you go about your work and daily activities. You'll learn how to keep your neck safe while you lift and carry items and as you begin to do other heavier activities.

As your condition improves, your therapist will begin tailoring your program to help prepare you to go back to work. Some patients are not able to go back to a previous job that requires heavy and strenuous tasks. Your therapist may suggest changes in job tasks that enable you to go back to your previous job. Your therapist can also provide ideas for alternate forms of work. You'll learn to do your tasks in ways that keep your neck safe and free of extra strain.

Chiropractic care

Chiropractic care also offers another opportunity for relief of pain from a whiplash injury. Chiropractors adjust misalignments of the facet joints and vertebrae to restore the nerve signals and improve spinal health, which can impact overall physical health. Many chiropractors make these adjustments using a thrust technique called manipulation.

Chiropractors also take into account how nutrition, emotion, and environment affect our health. The chiropractor will assess your posture during daily activities, work, and sleep and offer you suggestions for ways to improve your day-to-day spinal alignment. You may be given some additional advice about the use of heat, cold, and exercise to help maintain the results of your chiropractic treatment.

Surgery

Most people with lingering effects from whiplash or cervical radiculopathy from whiplash get better without surgery. In rare cases, surgery may be suggested.

Rehabilitation

What should I expect as I recover?

Nonsurgical Rehabilitation

You should expect full recovery to take up to three months. Integration of rehabilitation and manipulative therapy is central in getting back to your pre-injury status.

There is a strong emphasis on keeping as active as possible, which includes incorporating manual treatments and exercise. Before your rehab program ends, your healthcare team will teach you how to maintain any improvements you’ve made and ways to avoid future problems.

A Patient's Guide to Spondyloarthropathies

Introduction

There are many different types of rheumatological diseases that affect the spine. A rheumatological disease is a problem that affects the entire body as a whole - such as the relatively well known rheumatoid arthritis. When a rheumatological disease affects the spine, the resulting conditon is called a spondyloarthropathy. The term is made up of Greek words: "Spondylo" means "vertebra," "arthro" means "joint" and "pathos" means "disease."

The most common diseases in the spondyloarthropathies include:

• Ankylosing Spondylitis (AS)
• Psoriatic Arthritis (PsA)
• Reactive Arthritis (ReA)
• Enteropathic Arthritis (EA)
• Rheumatoid Arthritis (RA)

This guide will help you understand

• which parts of the spine are affected
• what causes these diseases
• what the most common symptoms are
• what tests your doctor may recommend
• what treatment options are available

Anatomy

What parts of the spine are involved?

This group of diseases cause damage by creating inflammation that attacks the connective tissues of the body. In most cases, the cause of these diseases is unknown. There is increasing evidence that the underlying cause may be a combination of genetics and infection. A person born with certain genes may react differently to certain types of infections. Once that person is exposed to certain infections, the body responds by defending itself. The way the body defends itself against infection is through an inflammatory response. This is normal. What is not normal is that long after the infection
is gone, the inflammation continues. This chronic inflammation causes damage to many of the connective tissue structures in the body and leads to the symptoms.

There are several rheumatological diseases that can affect the spine. The rheumatological diseases that affect the spine primarily affect the connective tissues. One of the most common rheumatological diseases is rheumatoid arthritis (RA). RA primarily attacks the synovial joints.

Most of the joints in the body are synovial joints - such as the knee, hip and shoulder. A synovial joint is where two bones come together to form a connection that needs to be flexible - the two bones need to move against one another. The ends of the bones are covered with articular cartilage. Articular cartilage is a white, shiny material that is very slippery. It provides shock absorption and allows the bones to glide against one another easily. The synovial joint is completely enclosed by a joint capsule made up of tough connective tissue on the outside and a thin layer of tissue on the inside called the synovial lining. The joint is water tight. Inside the joint there is a small amount of fluid called synovial fluid. Articular cartilage does not have any blood vessels. The synovial fluid brings nutrients to the articular cartilage as it lubricates the joint.

In RA, the synovial lining of the joint is affected. The normally thin tissue of the synovial lining becomes inflamed and thickened. This material begins to produce inflammatory chemicals that damage the articular cartilage and bone underneath. The joint is slowly destroyed until bone rubs against bone. There are synovial joints between each vertebra in the spine and between the skull and the first cervical vertebra. It is easy to see why RA affects the spine.

In some rheumatological diseases, the inflammatory process affects other connective tissue structures. One structure that is commonly affected is where ligaments and tendons attach to the bone. This area is called an enthesis. There are entheses located all over the body - wherever tendons and ligaments need to attach to bone. There are also many entheses in the spine itself, such as where the intervertebral disc attaches to the vertebra. Many of the rheumatological diseases that affect the spine seem to attack these areas of the spine. It is unclear why this occurs.

Related Document: A Patient's Guide to Lumbar Spine Anatomy

Causes

What causes this problem?

The cause, or causes, of all of these rheumatological diseases is still unknown. There is increasing evidence that the underlying cause in many of these conditions is a combination of a person's genetic makeup and how that person responds to certain types of infections.

For many years, doctors have been aware that people with these diseases have a higher percentage of a gene called HLA-B27. The HLA-B27 gene plays a role in determining how the cells of the body react against infection. Not everyone with this gene will develop a rheumatological disease, but the vast majority of people with any of the diseases have the gene. Recently, more research has shown that there are a number of variations of the HLA-B27 gene. This further complicates a very complex situation in trying to understand what role genetics plays in the cause of these diseases.

There are also a number of different infections that have been found to be related to the development of the rheumatological diseases. When patients with these diseases are studied, there seems to be certain bacterial infections that are more likely to precede the development of the rheumatological disease. The infection may be over, but the body continues to mount an inflammatory response that instead attacks the connective tissue
structures of the body itself.

The current evidence suggests that people with certain genes are more likely to react to certain types of infections by developing a rheumatological disease.

Related Document: A Patient's Guide to Rheumatoid Arthritis

Symptoms

What does the condition feel like?

Most of these diseases cause pain and stiffness as the primary symptoms affecting the spine. The pain and stiffness is worse in the morning and improves with activity. The flexibility of the spine decreases as time passes and the disease progresses.

In diseases that affect the synovial joints, destruction of the joints can result in instability of the spine and may cause pressure on the spinal nerves or spinal cord. In the
diseases that affect the entheses, the spine more commonly develops large bone spurs and may fuse together and become stiff. Instability occurs if the stiff spine is fractured.

Because these diseases are systemic, meaning that they affect the entire body, the symptoms also affect the entire body. The symptoms include pain in areas that are affected, such as the other synovial joints, and the other entheses of the body.

Besides back pain, sacroiliac, hip, and shoulder pain are also common. The exact location of symptoms depends on the type of spondyloarthropathy (SpA) present. Some of the diseases may include a skin rash, such as psoriasis. Several of the spondyloarthropathies affect the eyes, causing uveitis (inflammation of the iris). Inflammation of the urethra (the tube from the bladder to the outside) can cause pain when urinating, called urethritis. Ankylosing Spondylitis (AS) can also affect the gut, aorta, or heart. All of the symptoms mentioned here are called extraskeletal manifestations. This means the symptoms affect some part of the body other than the tendons and bones.

Diagnosis

How do doctors diagnose the problem?

The diagnosis requires a careful history followed by a thorough physical examination. Many patients have someone directly related to them that suffers from the same disease. Your doctor may ask questions about symptoms of recent infections such as diarrhea, burning with urination, difficulty with vision and eye pain.

The laboratory evaluation is very useful in the diagnosis. Tests such as C-reactive protein (CRP) level and erythrocyte sedimentation rate (ESR) may be ordered to look for signs of infection and chronic inflammation other tests can be done for rheumatoid arthritis and the presence of the HLA-B27 gene. The HLA-B27 gene is not always present in patients with spondyloarthropathy. And it may be present in normal, healthy individuals without spondyloarthropathies.

Analysis of synovial fluid may be needed to rule out septic (infectious) arthritis. Additional tests may be ordered for patients with inflammatory bowel disease (IBD) or when reactive arthritis is suspected.

X-rays can be very useful to show the changes in the spine, joints and pelvis that are common with many of these diseases. X-rays are usually the first test ordered before any of the more specialized tests. In the early stages the x-rays may be negative, but as time passes, the changes may appear and confirm the diagnosis.

Other radiological imaging tests may be useful. A bone scan can show the sites of inflammation before the changes appear on x-rays. A bone scan is a special test where radioactive tracers are injected into your blood stream. The tracers then show up on special x-rays of your back. The tracers build up in areas where bone is undergoing a rapid repair process, such as a healing fracture or the area surrounding an infection or tumor. Usually the bone scan is used to locate the problem. Other tests such as the computed tomography (CT) scan or magnetic resonance imaging (MRI) scan are then used to look at the area in detail.

If there are symptoms suggesting the spinal nerves or spinal cord are in danger, an MRI scan may be recommended to look at the spine more closely. The MRI scan uses magnetic waves to create pictures of the lumbar spine in slices. The MRI scan shows the lumbar spine bones as well as the soft tissue structures such as the discs, joints and nerves. MRI scans are painless and don't require needles or dye. Specialized MRI techniques are now available that can detect inflammatory changes in the sacroiliac and vertebral joints long before they appear on x-rays.

Treatment

What treatment options are available?

There is no cure for any of these diseases. The goal of treatment is to manage the pain and, when possible, to slow the progression of the damage to the underlying structures.

Remaining as active as possible is critical to maintaining your function. A physical therapy program can teach you how to maximize your function and retain as much flexibility as possible. Learn all you can about what you can do to control your symptoms and remain as healthy as possible.

If you smoke or use tobacco products, long-term outcomes are worse. You should quit as soon as possible. Your doctor can help you with this important step.

Medications are the primary tools available for treatment. Non-steroidal anti-inflammatory drugs (NSAIDs) are the main drugs used for treatment of the pain associated with these diseases. These drugs include aspirin, ibuprofen, indomethacin and naprosyn. There are others in the group as well. These drugs reduce the inflammation and control pain. There is no evidence that they stop or slow the progression of the disease.

Cortisone can be used to control flare-ups of pain. Cortisone is a powerful anti-inflammatory medication. When used for short periods of time, the medication is safe and well tolerated. When used continuously over a period of months, the side effects can be significant. Your doctor will probably not want to use cortisone if possible. In some cases, such as with advanced rheumatoid arthritis it may become necessary to use cortisone indefinitely to control the disease.

There are newer medications that have been developed to control rheumatoid arthritis that are sometimes beneficial in the spondyloarthropathies. Some of these medications actually slow the progression of the damage from the disease. These medications are known as disease modifying anti-rheumatic drugs (DMARDs). DMARDs include gold injections, methotrexate, sulfasalazine and azothioprine. These medications may be used primarily to control the symptoms in other parts of the body, but may also improve the spinal disease as well.

Recently, new medications have been available that may prove to be very beneficial for these diseases. One of the chemicals that seems to make the inflammation worse in these diseases is tumor necrosis factor (TNF). Drugs that block the effect of this chemical are called tumor necrosis factor-a inhibitors. TNF-a inhibitors are used to treat a variety of inflammatory diseases. These have recently begun to be used to treat a variety of inflammatory diseases. These drugs have shown promise in helping control the inflammation and symptoms of the spondyloarthropathies as well. TNF-a inhibitors result in dramatic decreases in CRP levels and ESR improvements are also seen on MRIs.

Treatment with TNF-a inhibitors must be kept up over the long-term to stay in control of the disease. If one agent doesn't work, your doctor may switch you to another. There are some serious side effects with these agents, so they aren't used with everyone. We don't know yet if these agents will prevent the bony changes that lead to spinal fusion. More study is needed to determine this.

Surgery is rarely indicated in the treatment of these diseases, except where the damage caused by the disease has caused pressure on the spinal nerves or spinal cord. Total joint replacement may be needed for patients with severe damage to the hip or knee. Some patients elect to have surgery to correct kyphosis (forward curve or humpback of the upper spine) or to correct spine instability from fracture.

Finally, learning as much as you can about how you can take care of yourself is an important part of managing these chronic diseases. Support groups are available online and in many cities where people can come together and help with information and support. There is nothing as valuable as getting advice and guidance from someone who has experience with the disease and can provide tips and pointers for living with the disease on a daily basis. It is always nice to know that you are not alone.