Ulnar Neuropathy

Ulnar neuropathy results from compression or injury of the ulnar nerve, commonly at the elbow (cubital tunnel) or wrist (Guyon canal). Clinical features include numbness, tingling in the fourth and fifth fingers, and intrinsic hand muscle weakness. Pathophysiology involves ischemic injury, demyelination, and axonal loss due to chronic compression. Diagnosis relies on clinical examination and electrodiagnostic studies. Management includes activity modification, splinting, corticosteroid injections, and surgical decompression for severe cases; prognosis depends on duration and severity of nerve injury.