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The Result of Locking Compression Plate Olecranon Plate Fixation for Unstable Comminuted Olecranon Fracture

Purpose: Olecranon fractures of Mayo type IIIb occurring in less than 15% of total olecranon fractures usually require open reduction and internal fixation with plate. Concomitant injury to the surrounding soft tissue is common and anatomi-cal reduction is relatively difficult, which may be predictive of poor prognosis compared to simple fracture. We performed open reduction and locking compression plate (LCP) olecranon plate fixation in Mayo type IIIb fractures, and analyzed the results of the treatment. Methods: We retrospectively analyzed 29 patients who underwent LCP plate fixation for olecranon fractures of Mayo type IIIb. Twenty four males and 5 females were included, and the average follow-up period was 17 months. Radiograph-ic analysis was performed to assess the stability of the joint, union time of the fracture, and the occurrence of traumatic arthritis at the final follow-up. We analyzed the range of motion of the elbow at the final follow-up, the Mayo elbow performance score (MEPS), the disability of the arm, shoulder and hand (DASH) score, and postoperative complications. Results: All cases showed bony union and stable elbow joint on simple plain radiography. On final follow-up radiogra-phy, traumatic arthritis was observed in 1 case. The mean range of motion of the elbow was 129.7°, the mean MEPS was 88.6, and DASH score was 11.04. Conclusion: Based on the results of this study, the satisfactory results can be obtained if appropriate open reduction and stable internal fixation using olecranon LCP plate is achieved in unstable olecranon fractures.