Is the second most common peripheral neuropathy.
Ulnar nerve compression in the upper extremity, leading to sensory paresthesias in the ulnar digits and intrinsic muscular weakness.
Diagnosis
Provocative testing:
-Tinel’s sign over the cubital tunnel,
-The elbow flexion test with paresthesias elicited over the ulnar nerve.
“Carpal tunnel syndrome causes paresthesias in the distal median nerve distribution. Wartenberg’s syndrome reflects compression of the superficial radial nerve. Pronator syndrome is a proximal median nerve neuropathy, while anterior interosseous nerve syndrome, a rare clinical entity, causes paresis or paralysis of the flexor pollicis longus, and the flexor digitorum profundus of the index and long fingers.” ABFM critique.
Further Reading
Hand compression neuropathy: An assessment guide. J Fam Pract 2016;65(7):462-471.