Arch Hand Microsurg 2019; 24(2): 133-141  
The Result of Locking Compression Plate Olecranon Plate Fixation for Unstable Comminuted Olecranon Fracture
In-Tae Hong1, Kyunghun Jung2, Yoon Seok Kim3, Soo-Hong Han2
1Department of Orthopaedic Surgery, Hallym University Dongtan Sacred Heart Hospital, Hwaseong, Korea
2Department of Orthopaedic Surgery, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Korea
3Department of Orthopaedic Surgery, Seoul Paik Hospital, Inje University College of Medicine, Seoul, Korea
Correspondence to: Soo-Hong Han
Department of Orthopaedic Surgery, CHA Bundang Medical Center, CHA University, 59 Yatap-ro, Bundang-gu, Seongnam 13496, Korea
TEL: +82-31-780-5273, FAX: +82-31-708-3578, E-mail: hsoohong@cha.ac.kr
Received: January 2, 2019; Revised: March 13, 2019; Accepted: March 28, 2019; Published online: June 1, 2019.
© Korean Society for Surgery of the Hand, Korean Society for Microsurgery, and Korean Society for Surgery of the Peripheral Nerve. All rights reserved.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
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 anatomical 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. Radiographic 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 radiography, 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 comminuted olecranon fractures.
Keywords: Olecranon, Fracture, Internal fixators, Comminuted fractures


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