Cervical Stenosis and Myelopathy in St. Louis

CERVICAL STENOSIS AND MYELOPATHY

Cervical stenosis is a narrowing of the canal in the neck that holds the spinal cord. Many people have it on a scan and feel nothing. When the narrowing squeezes the cord itself, the result is myelopathy: clumsy hands, numb fingertips and an unsteady walk. The exam, not the MRI, tells the two apart.

Is narrowing on my MRI the same as damage to the spinal cord?

No, and the numbers show how far apart they are. Japanese researchers scanned the necks of 1,211 healthy volunteers aged 20 to 70 who had no symptoms at all. Disc bulging showed up in 87.6% of them, including most people in their twenties. Actual compression of the spinal cord was far rarer, at 5.3%, and a signal change inside the cord itself appeared in 2.3%. Both rose after age 50, and most of the compression sat at C5-C6 and C6-C7.

A report that says “stenosis” or even “cord flattening” describes a picture. Myelopathy describes a cord that is no longer doing its job. Why scans and symptoms so often disagree covers the same problem from the other side.

What does cervical myelopathy feel like day to day?

Usually not like neck pain. What people notice is that their hands and their balance have quietly changed.

• Buttons, earrings and zippers take longer. Coins slip out of the fingers.
• Handwriting gets worse, and typing on a phone produces more mistakes.
• Numbness in both hands that does not follow one nerve, often described as wearing gloves.
• Walking feels like being on a boat. You reach for the railing on stairs you never thought about before.
• An electric shock down the spine or into the legs when you bend your head forward.
• Later, a change in bladder control: urgency, or difficulty starting.

Why does myelopathy get mistaken for carpal tunnel or for getting older?

Because each symptom has a more common explanation. Numb hands sound like carpal tunnel. A wobbly walk sounds like the inner ear, or like age. One study followed 42 people who eventually had surgery for myelopathy. On average, 2.2 years passed between their first symptoms and the correct diagnosis. Most had first seen a family doctor, yet family doctors made the diagnosis in under 5% of cases.

That is a system problem, not a doctor problem. A short visit about numb hands gets a wrist exam; nobody checks the reflexes in the legs. The clue that usually breaks the case open is a carpal tunnel release that helped neither hand, or numbness in both hands that ignores the borders of any single nerve. Double crush syndrome and hand symptoms that start in the neck explain how the two overlap.

Balance gets the same treatment. Unsteadiness is often labeled vertigo. We run vestibular testing in the office, which separates an inner-ear problem from a cord problem. It happens in the same building, not another referral away.

How do we check the spinal cord at the first visit?

With your hands, your feet and a reflex hammer, before anyone looks at the scan. The first visit is an examination, not a procedure.

• Reflexes in the arms and legs. A squeezed cord tends to make them brisk, not weak.
• The Hoffmann sign, a flick of the fingertip that makes the thumb twitch when the cord is irritated.
• Grip and release: how many times you can open and close a fist in ten seconds.
• Heel-to-toe walking and standing with your eyes closed.

Where the picture is mixed, EMG and nerve conduction studies rule carpal tunnel and diabetic nerve damage in or out. We then grade function on the modified Japanese Orthopaedic Association scale, the score the international guideline uses: 15 to 17 is mild, 12 to 14 moderate, 11 or below severe. That number is recorded so that any change at the next visit is measured, not guessed.

What narrows the canal, and what does metabolism have to do with it?

The narrowing is built from several directions at once. Discs lose height and bulge backward. The small joints at the back of the neck and the hooked edges of each vertebra grow bony ridges. The ligament behind the cord thickens and buckles inward when the head tips back. In some people, ligaments along the spine slowly turn to bone.

That last process is where the metabolic terrain shows up. Dr. Padda spent years telling patients with prediabetes that their A1C was “not too bad.” He was wrong, and the spine is one of the places the error shows. In 522 Japanese adults from a community health study, people in the most insulin-resistant quarter had spinal ligament ossification about three times as often, 15.1% against 5.1%. When the researchers adjusted for the rest of the metabolic picture, waist size and blood pressure carried the signal more than insulin alone did. Either way, the bone that crowds the cord is partly a product of the same visceral fat and inflammation that drive diabetes.

Behavior feeds both. Long sedentary days grow the visceral fat, and they also weaken the balance and leg strength that would otherwise hide a mild cord problem. So the person with the most narrowing is often the person with the least reserve to absorb it.

If I have stenosis but no myelopathy, do I need an operation?

Not to prevent one. The international guideline on degenerative cervical myelopathy advises against surgery for people whose cord is compressed on the scan but who have no signs of myelopathy and no arm-nerve symptoms. It advises teaching them the warning signs and following them clinically. That is what we do.

The same guideline treats a compressed cord plus a pinched nerve root as higher risk. Those patients are offered either surgery or close serial follow-up with structured rehabilitation. If you fall in that group, you will hear it from us plainly, and the exam is repeated on a schedule rather than whenever something feels off. Cervical radiculopathy treatment covers the nerve-root half of that picture.

How is pain from a narrowed neck treated without surgery?

By treating the structure that is actually producing the pain, which is usually not the cord. Arm pain from a narrowed exit hole responds to a cervical epidural steroid injection placed at the confirmed level. Aching neck pain from worn joints is tested with a medial branch block and, when the block works, treated with radiofrequency ablation. PRP for worn neck joints is an option for facet pain. None of them widen the canal. They are the bridge: pain control now, so the rehabilitation and metabolic work can happen.

Procedures are done awake under local anesthetic, with no sedation, so most people drive themselves home and resume normal activity within two to four hours.

The rest of the plan carries its own reasons. Balance and leg-strength training replace the reserve the cord is losing, which lowers fall risk. Walking every day improves insulin sensitivity in the muscles you use. Cutting acellular carbohydrates lowers the insulin load that feeds visceral fat. Protected sleep matters because short sleep raises pain sensitivity the next day. Fast, forceful neck adjustments and heavy overhead loading are avoided while the cord is crowded.

Watching mild myelopathy without surgery is a real strategy, not a gamble. In a Canadian registry of 140 people with mild myelopathy managed without surgery, 13.3% lost two or more points of function at one year, and 12.1% went on to surgery over an average of 3.4 years. The point of regular exams is to find that minority early.

When is decompression surgery the right call?

When cord function is moderately or severely reduced, or when it is falling. The guideline recommends surgery for moderate and severe myelopathy. For mild myelopathy it supports either surgery or a supervised trial of rehabilitation, with surgery if function declines or fails to improve. Lost cord function recovers less reliably the longer it has been gone, which is why the two-year delay described above costs people so much.

Fusion is not part of the treatment plan here. When decompression is the right answer, we say so the same day and help you reach the right spine surgeon with a graded, documented diagnosis in hand, so that the next appointment starts where ours ended. Do I need neck surgery? walks through that decision, and failed neck fusion covers what follows when the level was wrong.

Signs that cannot wait for an appointment

Go to an emergency department the same day for any of these:

• Hand function or walking that worsens noticeably over days rather than months.
• Weakness or numbness in both arms after a fall or a minor jolt to the neck. A narrow canal leaves the cord little room, so a modest injury can bruise it.
• New loss of bladder or bowel control, or being unable to pass urine.
• Repeated falls with no trip to explain them.

The complete list is on when a neck problem is urgent.

Questions about cervical stenosis and myelopathy

Do I need a referral to be seen for cervical stenosis?

No. You can book directly, online or by phone. Some insurance plans want a referral on file before they pay for a specialist visit, so check your plan; the appointment itself does not depend on one. What the first visit looks like, from check-in to plan.

Is cervical myelopathy reversible?

Partly, and less so the longer it lasts. Pain and recent numbness often improve once pressure is relieved; hand dexterity and balance that have been poor for years recover less completely. That is the reason we grade function at every visit instead of waiting for a crisis. Why some numbness recovers and some does not.

Can exercise make cervical stenosis worse?

The wrong kind can. Heavy overhead pressing, long periods with the head tipped back and forceful neck manipulation load a crowded canal. Walking, leg strength and balance work help, and so does neck movement within a comfortable range. The neck exercises that help, and the ones to drop.

How often should myelopathy be rechecked?

Mild myelopathy is re-examined on a set schedule agreed at the first visit, with the same tests and the same score each time, and sooner if anything changes. A repeat MRI is ordered when the exam changes, not by the calendar. How that score feeds the surgery decision.