Surgical treatment of AO type C distal humeral fractures: internal fixation with a Y-shaped reconstruction (Lambda) plate.

Although surgical repair is considered the standard treatment for intraarticular distal humeral fractures, most investigators have assessed its results using dual-plate fixation in 2 planes. The purpose of this study was to determine the functional outcome of open reduction and internal fixation of these complex fractures using Y-shaped reconstruction plates. We identified 17 patients who had operative treatment for Arbeitsgemeinschaft Für Osteosynthesefragen (AO) type 1, 3-C fractures using a Y-shaped Lambda plate (Zimmer, Warsaw, IN). Patients were recalled for follow-up that included recording of a complete history, physical examination, radiographic evaluation, and completion of a limb-specific questionnaire. The mean duration of follow-up was 37.3 months. The average loss of extension was 13 degrees , and the average arc of flexion-extension was 112 degrees . As determined by the Mayo Elbow Performance Index, 6 were graded excellent; 8, good; 3, fair; and none, poor. Surgical repair of intraarticular distal humeral fractures by open reduction and internal fixation with a Lambda plate is an effective procedure that allows for stable osteosynthesis without loss of reduction or fixation as a basis for good functional outcome.