Ulnar Neuropathy—Cubital Tunnel Syndrome

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Abstract

The chapter presents the typical scenario of ulnar nerve entrapment at the elbow. The clinical picture can mimic pathology of nerve roots, of the brachial plexus, or of the ulnar nerve at different sites. Electrodiagnostic study helps to differentiate ulnar nerve entrapment from radiculopathy and to localize the site of compression, while imaging (ultrasound and MR imaging) are useful adjuncts to clinical examination. Conservative management is recommended for intermittent symptoms and absence of motor involvement. Surgical procedures include in situ, open, or endoscopic decompression and nerve transposition. Subluxation of the nerve over the medial epicondyle and recurrent or persistent neuropathy after in situ decompression are indications for transposition.