Diagnostic sensitivity of electrophysiology and ultrasonography in ulnar neuropathies of different severity

Ulnar neuropathy is the second most common mono-neuropathy after carpal tunnel syndrome. It usually results from focal nerve abnormality around the elbow, with an estimated incidence of 24.7/105/year (Mondelli et al., 2005). It presents with paraesthesia or sensory loss in the little and ring fingers and weakness of ulnar innervated muscles. Untreated ulnar neuropathy can progress to cause severe disability. However, despite its relatively high incidence, diagnosis and management of ulnar neuropathy at the elbow can be still challenging.

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