Cervical Stenosis

Cervical stenosis refers to the pathological narrowing of the spinal canal in the cervical spine (C1-C7 vertebrae). This constriction can compress both the spinal cord (myelopathy) and nerve roots (radiculopathy), potentially causing significant neurological deficits.

Primary Etiology

• Degenerative changes (most common):

  • Spondylosis (spinal osteoarthritis)

  • Hypertrophic facet joints

  • Ligamentum flavum thickening

• Congenital factors:

  • Naturally narrow spinal canal

  • Genetic predisposition

• Other causes:

  • Herniated discs

  • Spinal trauma

  • Post-surgical changes

  • Ossification of posterior longitudinal ligament (OPLL)

Clinical Presentation

Neurological Symptoms:

• Radicular symptoms (nerve root compression):

  • Sharp, radiating arm pain

  • Paresthesia in dermatomal patterns

  • Muscle weakness in specific myotomes

• Myelopathic symptoms (cord compression):

  • Hand clumsiness (loss of fine motor skills)

  • Gait disturbances

  • Hyperreflexia

  • Potential bowel/bladder dysfunction (late stage)

Pain Characteristics:

• Chronic neck pain/stiffness

• Headaches (occipital region)

• Aggravation with neck extension

Diagnostic Workup

1. Imaging:

   • MRI (gold standard for soft tissue evaluation)

   • CT myelography (for surgical planning)

   • Dynamic X-rays (assessing instability)

2. Electrodiagnostics:

   • EMG/NCS (differential diagnosis)

3. Clinical Assessment:

   • Spurling’s test

   • Hoffman’s sign

   • Lhermitte’s phenomenon

Management Strategies

Conservative Treatment:

• Physical therapy (cervical stabilization)

• Medications:

  • NSAIDs

  • Neuropathic agents (gabapentin/pregabalin)

  • Epidural steroid injections

• Cervical collar (limited use)

Surgical Indications:

• Progressive neurological deficits

• Refractory pain

• Myelopathic symptoms

• Significant cord compression on imaging

Surgical Options

• Anterior Approach:

  • ACDF (anterior cervical discectomy & fusion)

  • Corpectomy (for multi-level involvement)

• Posterior Approach:

  • Laminectomy

  • Laminoplasty (motion-preserving)

• Combined Approaches (for complex cases)

Prognosis & Outcomes

• Early intervention improves outcomes

• 70-80% success rate with appropriate surgery

• Physical therapy crucial for post-op recovery

• Regular follow-up for adjacent segment disease

Preventive Measures

• Maintain neck muscle strength

• Ergonomic workplace adjustments

• Regular physical activity

• Smoking cessation (accelerates degeneration)