Abstract
Ulnar nerve entrapment at the elbow is a common source of entrapment neuropathy. It is the most common area of entrapment for the ulnar nerve, and the second most common of all entrapment neuropathy (after carpal tunnel syndrome). Symptoms may include numbness in the fifth digit and the ulnar aspect of the fourth digit. Weakness may be noted in muscles innervated by the ulnar nerve. Electrodiagnostic testing can help determine the location and severity of the nerve entrapment. Froment sign may be positive. Treatment is usually conservative, although surgery (transposition, decompression, subtotal medial epicondylectomy or ulnar collateral ligament repair) may be required in recalcitrant cases or in cases where there is severe damage to the nerve. The anatomy, symptoms, physical examination, functional limitations, diagnostic studies and treatments (including potential disease and treatment complications) for ulnar neuropathy at the elbow will be discussed.
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