What is the most common entrapment neuropathy?
Most common entrapment neuropathy is ulnar neuropathy at the elbow. The two most common sites of entrapment are at the ulnar groove and the cubital tunnel.
Symptoms commonly are more motor than sensory involving weakness of the intrinsic hand muscles and sensory loss in the fifth digit, medial fourth digit, and hypothenar region, but not proximal to the wrist.
Electrodiagnostic studies can be helpful in localizing the lesion and recent studies have shown efficacy using ultrasonography.