Neural Foraminal Stenosis: Causes, Symptoms, and Treatment

Neural foraminal stenosis is narrowing of the neural foramina—the openings between vertebrae through which spinal nerves exit. Compression of these nerves causes radicular symptoms.

Common Causes

• Degenerative changes (osteoarthritis, disc height loss, ligamentum flavum hypertrophy)
• Herniated discs
• Bone spurs (osteophytes)
• Trauma or fracture
• Infection or tumor (rare)

Typical Symptoms (Depend on Level)

• Pain radiating to neck, shoulder, arm, back, buttock, or leg
• Numbness/tingling in corresponding dermatome
• Muscle weakness in affected myotome
• Gait imbalance, difficulty walking (if lumbar)
• Headaches, dizziness (if cervical)

Diagnosis

Imaging: X-rays (bony changes), CT (bony detail), MRI (soft tissue, nerve compression).

Treatment

• Conservative: NSAIDs, physical therapy, epidural steroid injections, activity modification.
• Surgical: Foraminotomy, laminectomy, or fusion if conservative measures fail or neurological deficit progresses.

Early intervention improves outcomes and may prevent permanent nerve damage.