Iatrogenic Ulnar Nerve Injury After Surgical Fixation for Supracondylar Humerus Fracture in Children

Dr Kishore V, Dr Varshama Tharun, Dr Kodali Manvitha

Abstract: This case report examines the occurrence and management of iatrogenic ulnar nerve injury following surgical fixation of a supracondylar humerus fracture in a pediatric patient. Despite the rarity of such injuries, their incidence increases with crossed K - wire fixation. The report details a 7 - year - old boy who developed ulnar nerve dysfunction, presenting with claw hand and sensory deficits, one month post - surgery. Initial conservative treatment with K - wire removal failed, leading to surgical exploration which revealed nerve entrapment in fibrous tissue. Post - surgical outcomes showed significant improvement in sensory and motor functions. The discussion emphasizes the importance of minimizing medial pinning, using a mini - open approach when necessary, and the necessity for prompt identification and treatment of nerve injuries to prevent permanent damage.

Keywords: ulnar nerve injury, supracondylar humerus fracture, K - wire fixation, pediatric orthopedics, nerve entrapment