Nerve Compression: Pinched Nerves in the Neck, Back, Wrist, and Elbow — Complete Guide

Nerve compression (entrapment neuropathy) occurs when a peripheral nerve is mechanically compressed at a specific anatomical site — a tunnel, passage, or channel through which the nerve runs. The compression impairs blood flow to the nerve and directly damages the myelin sheath, producing symptoms in the nerve's distribution: tingling, numbness, burning pain, and eventually weakness and muscle wasting if the compression is severe and prolonged. Each nerve has predictable entrapment sites and characteristic symptom patterns that allow clinical diagnosis before electrodiagnostic testing.

Common Compression Sites and Patterns

Median nerve at the wrist (Carpal Tunnel Syndrome): The most common entrapment neuropathy. Tingling and numbness in the thumb, index, middle finger, and half of the ring finger — the median nerve distribution. Worse at night and on waking; relieved by shaking the hand. Weakness and wasting of the thenar eminence (thumb muscles) in advanced cases. Risk factors: repetitive wrist use, hypothyroidism, diabetes, pregnancy, rheumatoid arthritis.

Ulnar nerve at the elbow (Cubital Tunnel Syndrome): Tingling in the little finger and ring finger (ulnar side). Pain and tingling at the elbow (the "funny bone"). Weakness of intrinsic hand muscles with loss of grip and pinch strength; clawing of the ring and little fingers in severe cases. Worsened by leaning on the elbow and by prolonged elbow flexion (holding the phone to the ear).

Common peroneal nerve at the fibular head: Compression from habitually crossing legs or prolonged squatting. Causes foot drop (inability to dorsiflex the foot) and numbness over the lateral leg and dorsum of the foot.

Radial nerve ("Saturday night palsy"): Compression in the spiral groove of the humerus — wrist drop.

Investigation and Treatment

Nerve conduction studies (NCS) confirm the site and severity of compression. Treatment: ergonomic modification; wrist splinting for CTS; steroid injection; surgical decompression (CTS release, ulnar nerve transposition) for severe or non-responding cases. Sri Anand CNC, Chanda Nagar, Hyderabad. Call +91 90633 66983.