Clinical Outcomes of Locking Plate Fixation for Comminuted Proximal Ulna Fractures: A Prospective Observational Study

Background: Comminuted proximal ulna fractures present significant challenges due to their complexity and potential for functional impairment. Locking plate fixation has become a widely used technique, providing stability and enabling early mobilization. This study evaluates the clinical and functional outcomes of locking plate fixation for comminuted proximal ulna fractures. Aim: To assess the clinical and functional outcomes of locking plate fixation in patients with comminuted proximal ulna fractures. Methods: This prospective observational study included 50 patients with comminuted proximal ulna fractures treated with locking plate fixation. Radiographic union rates and complication frequencies were used to assess clinical outcomes. Functional outcomes were evaluated using the Mayo Elbow Performance Score (MEPS) at 6-month and 12-month follow-ups. Results: Radiographic union was achieved in 94% of patients within an average of 12 weeks. The mean MEPS improved significantly, from 58 preoperatively to 84 at 6 months and 91 at 12 months (p<0.05). Complications included implant irritation (6%) and mild loss of motion (8%), with no cases of implant failure. Overall, 86% of patients achieved excellent to good functional outcomes. Conclusion: Locking plate fixation is a reliable method for treating comminuted proximal ulna fractures, providing superior stability and enabling early mobilization. In this prospective observational study of 50 patients, radiographic union was achieved in 94% within 12 weeks, with 86% demonstrating excellent to good functional outcomes based on the Mayo Elbow Performance Score (MEPS). Complications were minimal, including mild loss of motion (8%) and implant irritation (6%). These findings support the efficacy of locking plate fixation in managing complex fractures with high success rates and low complication risks.