Cervical Myelopathy: When Neck Compression Affects Balance and Hand Function
Cervical myelopathy tends to announce itself gradually, and that gradual onset is part of what makes it easy to miss. Patients come in describing subtle changes they have been noticing for months: handwriting that has become harder to control, buttons and zippers that take more effort than they used to, a sense of unsteadiness walking on uneven ground or in dim light. Some attribute these changes to aging. Some have seen other specialists for the hand symptoms before anyone considers the cervical spine.
At New Jersey Brain and Spine, we see patients with cervical myelopathy regularly, and the most important clinical point we emphasize is this: the changes patients are experiencing in their hands and legs often have a clear anatomical explanation rooted in the neck. With the right evaluation and, when indicated, the right intervention, many patients can stabilize or meaningfully improve their function. The earlier cervical myelopathy is identified, the more we can do to protect the spinal cord from further injury.
How Cervical Cord Compression Produces Symptoms in the Hands and Legs
The cervical spinal cord is the segment of the spinal cord that runs through the neck, from the base of the skull to roughly the level of the first thoracic vertebra. It is the relay station through which virtually all motor and sensory signals between the brain and the body must pass. Motor commands traveling down from the brain to the arms, hands, legs, and feet all pass through the cervical cord. Sensory information traveling upward from the limbs to the brain passes through it as well.
The cervical spine consists of seven vertebrae separated by discs, connected by facet joints, and protected by surrounding ligaments. With age, these structures can degenerate: discs lose height and may herniate, bone spurs form along the edges of vertebral bodies and joints, and the ligamentum flavum (a ligament running along the back of the spinal canal) can thicken and buckle inward. When these degenerative changes narrow the spinal canal sufficiently, the cord itself can be compressed.
Unlike nerve root compression (radiculopathy), which produces symptoms confined to a single nerve territory, spinal cord compression produces findings below the level of compression across multiple nerve territories simultaneously. This is the hallmark of myelopathy: widespread dysfunction that cannot be explained by a single nerve root.
The clinical picture of cervical myelopathy often includes loss of fine motor control in the hands, difficulty with tasks requiring dexterity such as writing, typing, or buttoning, weakness in the hands or arms, gait instability or a wide-based shuffling walk, difficulty climbing stairs or with balance on uneven surfaces, and in more advanced cases, changes in bladder or bowel function. Patients often do not recognize that these symptoms are connected to a single problem in the cervical spine.
At NJBS, when patients present with this constellation of symptoms, particularly fine motor hand changes combined with gait instability, cervical myelopathy is high on the differential until proven otherwise. A careful neurological examination and MRI of the cervical spine are the essential first steps.
Cervical Myelopathy vs. Related Conditions: Key Distinctions
Cervical myelopathy differs from cervical radiculopathy in an important way. Radiculopathy involves compression of a nerve root rather than the cord, producing symptoms in a single dermatomal distribution down one arm. A patient with C6 radiculopathy has thumb and index finger numbness with biceps weakness on one side. Pain is often a prominent part of cervical radiculopathy. A patient with cervical myelopathy has bilateral hand clumsiness, gait changes, and possibly lower extremity signs. These can coexist, and in some patients with multilevel cervical disease, both radiculopathy and myelopathy are present simultaneously.
Cervical myelopathy should also be distinguished from peripheral neuropathy, which can produce similar hand symptoms through a different mechanism. The involvement of the lower extremities and gait, combined with upper motor neuron findings on examination (hyperreflexia, positive Hoffmann sign, upgoing plantar responses), points toward a central spinal cord etiology rather than a peripheral nerve problem. These findings guide the examination and the imaging strategy.
How NJBS Approaches Cervical Myelopathy: Two Patient Scenarios
A 61-Year-Old Man with Mild Myelopathy Managed with Surveillance
This patient was referred after an MRI performed for neck pain incidentally identified mild cord compression at C5-C6 with a T2 signal change in the cord. He reported mild difficulty with fine motor tasks but remained fully functional in his job as an office manager. His gait was normal and he had no lower extremity symptoms.
On examination, he had mild hyperreflexia in the upper extremities and a borderline Hoffmann sign, but no frank weakness or sensory deficits. His mJOA (modified Japanese Orthopedic Association) score, a standardized functional measure for myelopathy, was in the mild range.
His care team discussed the natural history of mild cervical myelopathy: while surgery can halt progression, many patients with mild myelopathy are appropriately managed with close surveillance including serial clinical assessments and MRI monitoring. Given the mild degree of his deficit and his stable functional status, a conservative approach with 6-month follow-up was initiated. He was counseled clearly on the symptoms that should prompt immediate evaluation, including any rapid neurological deterioration.
A 68-Year-Old Woman with Progressive Myelopathy Requiring Surgery
This patient presented with an eight-month history of progressive hand weakness, bilateral arm tingling, and significant gait instability. She had fallen twice. She had stopped cooking because she could no longer safely handle kitchen tasks. Her symptoms were clearly worsening over time.
Examination confirmed bilateral hyperreflexia, positive Hoffman signs, weakness in bilateral hand intrinsic muscles, and a markedly ataxic gait. MRI showed multilevel cervical stenosis with cord compression from C3 to C6 and significant T2 signal change indicating myelopathic cord injury.
Given the progressive neurological decline and severity of cord compression, surgical decompression was recommended. She underwent cervical laminoplasty with stabilization of her neurological status postoperatively and meaningful improvement in her hand function and gait over the following months.
Note: These patient scenarios are representative, hypothetical examples used for illustrative purposes. Because every case is unique, actual treatment recommendations depend entirely on your individual circumstances and a thorough evaluation by your care team.
When to Seek Specialist Evaluation for Cervical Myelopathy
Any patient with progressive changes in hand dexterity, gait instability, or new balance problems should seek neurological or neurosurgical evaluation. These symptoms should not be attributed to normal aging without an examination to rule out a structural cause. The distinction matters because myelopathy from cord compression is treatable, and progression can often be halted or reversed with appropriate intervention.
New Jersey patients experiencing these symptoms are encouraged to seek evaluation at NJBS, where cervical myelopathy is a condition we manage with considerable clinical experience and where the decision between surveillance and surgery is made carefully based on the degree of deficit, rate of progression, and individual patient circumstances.
Cervical Myelopathy and Urgent Warning Signs
While most cervical myelopathy progresses gradually, acute deterioration can occur, particularly after trauma to an already compromised cervical spine. Any sudden worsening of existing myelopathic symptoms, new loss of function in the arms or legs, or new bowel and bladder dysfunction in a patient with known cervical cord compression warrants urgent evaluation. Call 911 or go to the nearest emergency room immediately if you experience sudden severe weakness in the arms or legs, inability to walk, or sudden loss of bowel or bladder control.
FREQUENTLY ASKED QUESTIONS
Patients occasionally seek evaluation because they have been told that they have cervical spinal stenosis and that it is potentially dangerous. Surgeons routinely use “scare tactics” such as “a minor car accident could paralyze you.” This is something that we do not do. We try to help the patient compare the small risk that the stenosis adds to the risk of the surgery. The decision can be complicated, and we try to break down the decision process in a way that makes the patient comfortable. Often, patients opt for a “wait and see” approach if the stenosis is not too severe. If the MRI shows myelomalacia, a bruising of the spinal cord, we may be more aggressive in our recommendations.
Mild cervical myelopathy can be stable for extended periods without surgery, and close monitoring is appropriate for patients with mild deficits and no evidence of rapid progression. However, cervical myelopathy does not reliably improve spontaneously, and the natural history for many patients is slow progression over time. Surgery does not always reverse existing deficits but typically stabilizes the condition and prevents further deterioration. The decision about timing depends on the severity of deficit, rate of progression, degree of cord compression, and patient-specific factors.
Early cervical myelopathy often produces subtle symptoms that are easy to miss or attribute to other causes: slightly slowed handwriting, mild difficulty with buttons or small objects, a sense of mild leg stiffness or heaviness, and occasional unsteadiness. Patients frequently do not connect these symptoms to their neck. As myelopathy progresses, symptoms become more noticeable and more broadly distributed across both the upper and lower extremities.
Diagnosis requires a clinical examination demonstrating upper motor neuron signs (hyperreflexia, Hoffmann sign, pathological reflexes) combined with MRI showing cord compression at the corresponding cervical level. The presence of T2 signal change in the cord on MRI indicates injury to the cord tissue and is associated with more significant myelopathy. Electromyography and nerve conduction studies may be used to exclude peripheral nerve conditions that can mimic myelopathy.
The two main surgical approaches are anterior and posterior. Anterior cervical discectomy and fusion (ACDF) or cervical disc replacement addresses compression from the front of the spine, typically for one to three level disease involving disc herniations or anterior bone spurs. Posterior approaches, including laminectomy with fusion or laminoplasty, are used when compression is multilevel or predominantly from the back of the canal. At NJBS, the surgical approach is individualized based on the location and extent of compression, the patient’s anatomy, and the degree of instability present.
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NJBS serves patients across northern New Jersey and the greater tri-state area, with offices in Paramus, Hackensack, Montclair, Montvale, Annandale, and Englewood. No referral is required to schedule a consultation.
