Outcomes and complications after open reduction and internal fixation of distal humeral fractures with precontoured locking plates.

Objectives: The aim of this study was to evaluate functional and radiographic results after open reduction and internal fixation of distal humeral fractures using precontoured locking plates. Our main hypothesis was that patients older than 65 years have inferior outcomes compared with younger patients. Methods: All patients treated for a distal humeral fracture with precontoured locking plates between 2006 and 2017 at a level 1 trauma center were identified. Included patients underwent a clinical examination, and new radiographs were obtained. Functional outcomes were evaluated using Quick Disability of the Arm, Shoulder and Hand, Mayo Elbow Performance Score, visual analog scale elbow satisfaction, and range of motion. Complications and reoperations were recorded. Results: Fifty-seven patients with a median age of 60 years were included in this study. Median Quick Disability of the Arm, Shoulder and Hand was 14, and median Mayo Elbow Performance Score was 85. There was no difference in functional scores in patients younger than 65 years or 65 years or older. However, the median flexion-extension arc was 121 degrees in patients younger than 65 years and 111 degrees in patients 65 years or older (P = 0.01). The overall complication rate was 68%, and 24 patients had at least 1 reoperation. Ulnar neuropathy was the most common complication followed by reduced range of motion. Conclusions: Operative management of distal humeral fractures with precontoured locking plates provides good functional outcome. The patient-reported outcomes were good, independent of patient age. The implant failure rate is low with precontoured locking plates; however, the complication rate remains high, and reoperations are common. Level of Evidence: Level 4, retrospective study.