Complications and functional outcomes after transolecranon distal humerus fracture

Background: Transolecranon distal humerus fractures are uncommon injuries. This is the first multipatient case series to describe outcomes and complications following transolecranon distal humerus fractures in the adult population. Method: Design: retrospective; setting: single level 1 trauma center; patients/participants: 16 patients; intervention: surgical management of transolecranon distal humerus fracture; main outcome measurement: Disabilities of the Arm, Shoulder, and Hand (DASH) questionnaire after a minimum of 12 months. Results: A total of 16 patients with open (n = 12) or closed (n = 4) transolecranon distal humerus fractures were identified. Nine female and 7 male patients with a mean age of 47 years were included. Mechanisms of injury included motor vehicle collisions (n = 3), motorcycle crashes (n = 4), ground-level falls (n = 3), falls from height (n = 4), train collision (n = 1), and an industrial accident (n = 1). Seven patients (44%) presented with nerve injury. Patients underwent open reduction with internal fixation (n = 15), external fixation (n = 6), or both (n = 5). Additional surgeries were ultimately required in 11 patients (69%), with a mean of 3 surgeries to manage each patient's elbow injuries. All patients returned for at least 3 clinical follow-up visits; mean clinical follow-up was 15.8 months and mean radiographic follow-up was 12.3 months. Complications were observed in 15 patients (94%). Eleven patients (69%) had limited range of motion with a flexion arc of less than 100 degrees at their last clinic visit. Seven patients (44%) developed deep wound infections requiring repeat debridement and intravenous antibiotics. Implant removal was performed in 10 patients (62.5%) because of infection (n = 5), symptomatic hardware (n = 4), or device failure (n = 1). Heterotopic ossification was seen in 8 patients (50%) and post-traumatic arthrosis in 4 (25%). Two patients (12.5%) required flap reconstruction for soft tissue defects. Nonunion occurred in 7 patients (44%). DASH scores were obtained for 10 patients (62.5%) at a mean of 3.8 years after injury. The mean DASH score was 40.2, ranging from 4.2 to 76.5. Among respondents, 7 (70%) were able to resume working, with an average DASH work module score of 25. Conclusion: Management of transolecranon distal humerus fractures remain a challenge for orthopedic surgeons. Complication rates, including deep infection and nonunion, are high, with frequent long-term functional limitations posed to the patient, as evidenced by DASH scores. (C) 2020 Journal of Shoulder and Elbow Surgery Board of Trustees. All rights reserved.