Cervical myelopathy

Spinal cord compression in the neck

Cervical myelopathy is a narrowing of the spinal canal in the neck that squeezes the spinal cord itself, which shows up as clumsy hands, unsteady walking, and a slow loss of coordination, often with surprisingly little pain.

Medically reviewed by Barrett S. Boody, M.D. · Updated September 2026
Understanding your neckSide view
Illustration of cervical vertebrae with a bulging disc pressing toward the spinal cord
A small space. An important connection.The spinal cord carries signals between your brain and body. Pressure here can affect your hands, walking, and balance.Simplified illustration

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What is cervical myelopathy?

It is damage to the spinal cord caused by pressure on it inside the neck. The cord is the cable that carries every signal between your brain and your body below the neck, so squeezing it affects the hands, the legs, and balance, not just one arm.

The spinal cord runs through a bony tunnel formed by the vertebrae. In the neck that tunnel has some spare room, but not much. Discs, bone spurs, and thickened ligaments can each take up part of that room, and when enough of it is gone the cord is pressed against bone with every movement of the neck. Over time the pressure and the repeated small injuries with motion disturb the cord's blood supply and its nerve fibers.

Doctors use the term degenerative cervical myelopathy when the cause is wear-related, which it usually is. It is the most common cause of spinal cord dysfunction in adults over 55. It is also frequently missed, because early symptoms are subtle and because many people expect a spine problem to hurt. Myelopathy often does not.

How is it different from a pinched nerve?

A pinched nerve involves one nerve root and produces symptoms in one arm along one path. Myelopathy involves the cord and produces symptoms below the level of compression on both sides: both hands, both legs, and balance. The stakes are also different, because cord damage recovers less completely than root damage.

Compare the patterns

Select an area to see how the symptoms differ.

Nerve root

One arm. One path.

A pinched nerve can cause pain or numbness along a particular path in one arm.

About cervical radiculopathy
Where you notice it
One arm, along a particular nerve’s path.
What you may feel
Pain or numbness along that path.
On the exam
Reflexes may be dampened.

Spinal cord

Hands. Legs. Balance.

Myelopathy can affect coordination on both sides, often with surprisingly little pain.

Recognize the symptoms
Where you notice it
Both hands, the legs, and balance.
What you may feel
Fine-motor trouble, stiffness, or unsteadiness.
On the exam
Reflexes may be brisk.

Cervical radiculopathy is a wiring problem at one exit. The root is inflamed, it hurts, and once the pressure is gone it usually recovers fully. Myelopathy is a problem with the main cable. Signals traveling down to the legs and up from the hands are degraded. The classic combination is fine-motor trouble in the hands plus stiffness or unsteadiness in the legs, with brisk reflexes on exam instead of the dampened reflexes seen with a root.

The two can coexist. A disc and bone spur at C5-6 can press on the root heading to the thumb and on the cord at the same time. When that happens, the cord compression sets the plan, because it is the part that does not wait well.

What causes it?

Most often it is cervical spondylosis: disc bulging, bone spurs, and thickening of the ligamentum flavum that together narrow the canal. Some people are born with a narrower canal and reach the threshold sooner. A less common cause is ossification of the posterior longitudinal ligament, or OPLL, in which a ligament in front of the cord turns to bone.

Wear at a disc lowers its height and lets it bulge backward into the canal. The vertebral edges respond by growing bone spurs. The ligament along the back of the canal thickens and buckles inward when the neck extends. Facet joints enlarge. Each change is small, but the canal is small too, and the cord sits in the middle of all of them.

A congenitally narrow canal is common and often unknown until a scan. It leaves less reserve, so ordinary degenerative change causes compression at a younger age. A single large disc herniation can also compress the cord acutely, and a neck injury in someone with a tight canal can produce sudden myelopathy without a fracture.

OPLL deserves its own mention. The posterior longitudinal ligament runs along the back of the vertebral bodies, directly in front of the cord. In some people it calcifies and grows over years, forming a hard bar that can occupy a large share of the canal. It is more common in people of East Asian descent but occurs in every population. It changes the surgical plan because the bone is attached to the front of the canal and can be adherent to the cord's covering, and Dr. Boody has published a review of its evaluation and treatment.

What does it feel like?

Most people first notice their hands: dropping things, trouble with buttons or handwriting, a sense that the fingers are not doing what they are told. Then walking feels stiff or unsteady, especially in the dark or on stairs. Neck pain is often mild or absent.
  • Clumsy hands: difficulty with buttons, zippers, coins, keys, or typing; handwriting that has changed
  • Numbness or a glove-like tingling in the hands, sometimes on both sides
  • Grip that feels weak, or dropping objects without warning
  • Stiff, heavy, or unsteady legs; a wider stance; holding the rail on stairs
  • Loss of balance in the dark or with the eyes closed, when you cannot use vision to compensate
  • An electric sensation down the back or into the limbs when you bend the neck forward, called Lhermitte's sign
  • Urgency or hesitancy with urination in later stages
  • Neck pain and stiffness, which may be present but is often not the main complaint

Because the changes are slow, many people adapt without realizing it. They stop wearing shirts with small buttons, they hold the rail, they type more slowly. A useful question is whether a family member has noticed a change in the way you walk or use your hands.

Symptom check

What changes have you noticed?

Select all that apply. Your summary updates as you choose. This helps you discuss symptoms with your clinician; it is not a diagnosis.

0 symptoms selectedView summary ↓
Hands & arms

Dexterity, grip, and sensation

Walking & balance

Changes in your legs or steadiness

Other changes

Neck symptoms and urinary changes

Changes that need emergency care

Go to an emergency department if either applies.

How is it diagnosed?

The diagnosis is made by matching the exam to the MRI. The exam looks for signs that the cord's signals are disturbed: brisk reflexes, a Hoffmann sign, clonus, and difficulty walking heel to toe. The MRI shows where the canal is narrowed and whether the cord itself has changed.

The neurological exam is the heart of it. Reflexes at the knees and ankles are brisk rather than normal, and sometimes the ankle beats repeatedly when the foot is flexed, which is clonus. Flicking the tip of the middle finger makes the thumb and index finger twitch, the Hoffmann sign, a sign of an irritable cord rather than a root. The examiner may ask you to open and close your hand as fast as you can for ten seconds; fewer than about twenty cycles suggests myelopathy. Tandem gait, walking heel to toe in a straight line, is difficult. The Romberg test, standing with the feet together and the eyes closed, brings out the balance loss.

What the exam looks for

Six signs of a cord under pressure

Explore six parts of the neurological exam. Select a test to see what the clinician checks and what the finding means.

The neurological exam above describes these six signs.

How severity is measuredThe mJOA score and your baseline

Severity is often scored with the modified Japanese Orthopaedic Association scale, or mJOA, which grades hand function, walking, sensation, and bladder function out of 18. Scores of 15 to 17 are mild, 12 to 14 moderate, and 11 or below severe. The score matters because it guides the recommendation and gives a baseline to measure change against.

What MRI and other tests showImaging, signal changes, and additional tests

MRI is the key imaging test. It shows the discs, spurs, and ligament that are narrowing the canal and how much space remains around the cord. It also shows the cord itself. A bright spot within the cord on T2-weighted images, called signal change, indicates swelling or injury to the cord at that level. A dark spot on T1-weighted images suggests more established damage and a smaller chance of full recovery. CT is added to measure bone and to characterize OPLL. Flexion and extension X-rays check for instability. Nerve conduction studies and EMG are sometimes used to rule out conditions that mimic myelopathy, such as peripheral neuropathy, ALS, or multiple sclerosis. The labeled cervical MRI guide shows the cord, the fluid ring around it, and the structures that narrow the canal.

Why does it tend to progress in steps?

The compressed cord has little reserve, so a small additional insult, a minor fall, a period of neck extension, or a bit more spur growth, can produce a noticeable drop in function that then plateaus. Studies report that between roughly one in five and more than half of patients with symptomatic myelopathy worsen over a period of a few years without treatment, and improvement without surgery is uncommon.

The pattern is not a smooth slope. Most people describe periods of stability separated by steps down, and each step tends to be permanent. That is what makes the condition different from most spine problems, where waiting costs time but not function. With myelopathy, waiting can cost function that surgery will not give back.

The practical consequence is that the decision is made on the trajectory, not on the amount of pain. Someone with mild symptoms that are stable can be followed. Someone with mild symptoms that were not present a year ago has a moving target, and that is a stronger reason to act.

What are the non-surgical options?

For mild, stable myelopathy, careful observation with scheduled exams is reasonable, along with physical therapy for balance and strength and avoidance of high-risk activities. There is no medication, injection, or exercise that removes pressure from the cord or reverses established myelopathy.

Observation means something specific: a repeat neurological exam and, when appropriate, a repeat MRI on a schedule, with a clear list of the changes that would trigger surgery. Patients are asked to avoid forceful neck manipulation, to be careful on ladders and ice, and to report any new hand or gait change promptly. A cervical collar is occasionally used for short periods but is not a long-term treatment.

Physical therapy can improve balance and leg strength, which reduces fall risk, and can help hand function. It treats the consequences, not the cause. Anti-inflammatory medication helps neck pain when present. Steroid injections are not a treatment for myelopathy; an injection into a narrowed canal around a compressed cord is avoided.

Current guidelines from AO Spine and the Cervical Spine Research Society recommend surgery for moderate and severe myelopathy, and either surgery or a structured program of observation and rehabilitation for mild disease, with surgery if it progresses. That matches how Dr. Boody practices.

When is surgery considered?

Surgery is recommended for moderate or severe myelopathy, for mild myelopathy that is progressing, and for many patients with mild myelopathy who want to prevent progression. Decompression is often advised even when pain is minimal, because the goal is to protect the cord, not to treat pain.

This is the part that surprises people. In most of spine surgery, pain drives the decision. In myelopathy, the decision is driven by function and by the risk of losing it. A patient with no neck pain, clumsy hands, brisk reflexes, and a cord that is flattened with signal change on MRI has a strong indication for surgery, because the natural course is downhill and because outcomes after decompression are better when symptoms have been present for a shorter time and are milder at the start.

What surgery reliably does is stop the progression. What it often does is improve function; on average, patients gain two to three points on the mJOA scale, and many gain more. What it does not reliably do is restore a cord that has been badly damaged for years. That is the argument for not waiting until the symptoms are severe.

Cord compression without symptoms

A specific question comes up often: what about the person whose MRI shows cord compression, even with signal change inside the cord, but who has no symptoms and a normal exam? Dr. Boody published on exactly this question in Clinical Spine Surgery in 2019. The short answer is that prophylactic surgery is not routinely recommended for asymptomatic compression, because most such patients do not develop myelopathy in the near term. The longer answer is that these patients need to be told what to watch for and followed closely, that signal change and the presence of radiculopathy at the same level raise the likelihood of developing myelopathy, and that the threshold for surgery becomes low as soon as any sign appears. This is an individualized conversation, and it is one he has often.

Where does this leave the decision?

Two things set the recommendation: how severe the myelopathy is on exam, and whether it is changing. Pain is not one of them. Pick the pair that matches your situation to see what is usually advised.

How has it been graded?

Compared with a year ago, has it changed?

Answer both questions to see what is usually advised.

What surgery does Dr. Boody do for it?

The operation is a spinal cord decompression: remove whatever is pressing on the cord and, when needed, stabilize the levels involved. It can be done from the front of the neck, as in ACDF or corpectomy, or from the back, as laminoplasty or laminectomy with fusion. The choice depends on where the compression is, how many levels are involved, and the alignment of your neck.

When the compression comes from the front, from one to three discs and their spurs, an anterior approach removes it directly. ACDF takes out the disc and spurs at each level and fuses the level with a graft and plate. If the compression is behind the vertebral body itself, as with OPLL or a large spur, part of the body is removed too, which is a corpectomy, and a longer graft or cage bridges the gap. Anterior surgery also corrects a neck that has lost its normal forward curve, which matters because a cord draped over a kyphotic spine stays compressed even after posterior bone is removed.

When the compression involves three or more levels, comes mostly from the back, or the canal is congenitally narrow, a posterior approach is often better. Laminoplasty hinges the lamina open on one side and props it there with small plates, which widens the canal while preserving motion and avoiding a fusion. It requires that the neck still have a neutral or forward curve so the cord can drift backward away from the front-sided compression. Laminectomy and fusion removes the lamina outright and stabilizes the levels with screws and rods. It is chosen when there is instability, a kyphotic neck, or significant neck pain, and when preserving motion is less important than achieving a stable, decompressed canal.

Some patients need both a front and a back operation, in the same anesthetic or staged. Dr. Boody will draw the plan on your MRI and explain which approach fits your anatomy. All of these are operations he teaches to spine fellows.

What is recovery like?

The first goal is met on the day of surgery: the cord is no longer compressed and the progression stops. Improvement in hand function and walking, when it comes, arrives gradually over six to twelve months. Anterior operations are typically one night in the hospital; posterior multilevel operations are usually two to three.
Days 1 to 14Right after surgery

Walking from the first day, often with therapy in the hospital. Anterior surgery brings a sore throat and swallowing difficulty for a week or two; posterior surgery brings more muscle soreness in the neck and shoulders. A collar may be used briefly after fusion.

Weeks 2 to 6Early healing

Wound healed, pain medication tapered. Balance and hand coordination may already feel steadier. No lifting beyond about ten pounds. Desk work resumes for many patients in this window.

Weeks 6 to 12Rehabilitation

Physical and occupational therapy for gait, balance, and fine motor skills. Restrictions ease. X-rays confirm implant position and early fusion. Driving resumes once neck rotation is comfortable and narcotics are stopped.

Months 3 to 12Continued recovery

Fusion is usually solid by three to six months. Cord recovery continues for up to a year and sometimes beyond. Most of the improvement you will get is present by twelve months. Long-term follow-up watches the adjacent levels.

How much you recover depends most on how severe the myelopathy was at surgery and how long it had been present. That is the reason Dr. Boody does not wait for severe symptoms before recommending decompression. Your recovery plan will be written down, with the milestones that apply to your operation.

How Dr. Boody approaches it

Protect the cord first. Then decide how.

Dr. Boody has written on the hardest questions in this condition. His 2019 paper in Clinical Spine Surgery addressed whether patients with cervical cord compression and signal change but no symptoms should have surgery, and his 2019 review in International Orthopaedics, written with Alexander Vaccaro, covered the evaluation and treatment of ossification of the posterior longitudinal ligament. When he explains why you do or do not need an operation, the reasoning comes from that work.

He is core faculty for the Indiana Spine Group spine fellowship, an Adjunct Clinical Assistant Professor of Orthopaedic Surgery at Indiana University School of Medicine, and co-chaired the Cervical Spine Research Society's 29th Instructional Course in December 2024. He performs the full range of decompressions for myelopathy, from the front and from the back, and chooses between them on the basis of your alignment, the number of levels, and where the compression sits.

In clinic he will show you your cord on the MRI, point to the levels where it is flattened, and explain your exam findings in terms of what the cord is and is not transmitting. If observation is reasonable, you will leave with a schedule and a list of the changes that would end it. If surgery is recommended, you will understand why the recommendation does not depend on how much your neck hurts.

Research and teaching

Questions patients ask

Cervical myelopathy, answered.

Why do I need surgery if my neck does not hurt much?
Because the purpose of surgery for myelopathy is to protect the spinal cord, not to relieve pain. Compression that is causing clumsy hands or unsteady walking tends to progress in steps, and function lost to cord damage often does not return. Decompression stops that progression and gives the cord its best chance to recover.
Will my hands and walking get back to normal after decompression?
Most patients improve, and on average they gain two to three points on the 18-point mJOA scale over the year after surgery. The amount of recovery depends on how severe and how long-standing the myelopathy was before surgery. The most reliable result is that the decline stops; full return to normal is more likely when surgery is done early.
My MRI shows cord compression but I have no symptoms. Do I need surgery?
Usually not right away. Prophylactic surgery is not routinely recommended for asymptomatic cord compression, because most such patients do not develop myelopathy in the near term. You do need to know the warning signs and to be examined on a schedule. Signal change inside the cord or a pinched nerve at the same level raises the risk, and any new sign lowers the threshold for surgery. Dr. Boody published on this question in 2019.
What is the difference between laminoplasty and laminectomy with fusion?
Both open the canal from the back of the neck. Laminoplasty hinges the lamina open and props it there, preserving motion and avoiding a fusion, and works when the neck still has a neutral or forward curve. Laminectomy with fusion removes the lamina and stabilizes the levels with screws and rods; it is chosen when there is instability, a kyphotic neck, or significant neck pain.
Is it safe to see a chiropractor with cervical myelopathy?
Forceful manipulation of the neck is not advised when the spinal cord is compressed. A cord with little room around it can be injured by a sudden movement. Gentle physical therapy for balance and strength is appropriate; high-velocity neck adjustments are not.
How quickly does cervical myelopathy get worse?
It varies. Some people remain stable for years; studies report that between roughly one in five and more than half of patients worsen over a few years without treatment. Progression is usually stepwise rather than steady, and each step tends to be permanent. That unpredictability is why mild myelopathy is followed closely and moderate myelopathy is usually treated.
What does signal change in the spinal cord mean?
A bright area within the cord on a T2 MRI sequence means the cord tissue at that level is swollen or injured from the compression. It confirms that the pressure is affecting the cord, not just sitting near it. A dark area on T1 images suggests more established damage and a smaller chance of full recovery, which is one more reason not to wait.
How long will I be in the hospital and off work?
Anterior operations such as one or two level ACDF are typically one night; multilevel posterior operations are usually two to three nights. Desk work often resumes within two to four weeks. Physical work restarts between six and twelve weeks depending on the operation. Cord recovery continues for up to a year regardless of when you return to work.

Next step

If your hands or your walking have changed, do not wait to be examined.

Bring your MRI if you have one. You will leave knowing whether the cord is involved, how severe it is, and what the plan is. Offices in Carmel, Fishers, Greenfield, and Muncie.