• Hoon-Sang Sohn, Yoon Sang Jeon, JuHan Lee, and Sang-Jin Shin.
• Department of Orthopedic Surgery, National Medical Center, Seoul, Republic of Korea.
• Injury. 2017 Jun 1; 48 (6): 1175-1182.

BackgroundRecently, minimally invasive plate osteosynthesis (MIPO) has been widely used for the treatment of proximal humeral fractures. However, there is concern about whether the MIPO in comminuted proximal humeral fractures is also comparable to open plating. The purpose of this study was to compare the clinical and radiographic outcomes of open plating and MIPO for acute displaced proximal humeral fractures.Materials And MethodsIn this prospective, randomized controlled study, 107 patients who had an acute proximal humeral fracture were randomized to either the open plating or MIPO techniques. Forty-five patients treated with open plating and 45 with the MIPO technique who were followed up at least 1year were evaluated. Shoulder functional assessment, operating time, several radiographic parameters, and complications were evaluated at final follow-up.ResultsThe mean follow-up period was 15.0 months in the open plating and 14.3 months in the MIPO technique. There were no statistically significant differences in functional assessment scores and radiographic parameters between the two groups. High complications rates were found in 4-part fracture in both surgical methods The average operation time in the MIPO group were significantly lower compared to the open plating group (p<0.05).ConclusionThis study showed MIPO in proximal humerus fractures had similar clinical and radiographic outcomes compared to the open plating. However, the MIPO technique in proximal humerus fracture provided significantly shorter operation time than the open plating.Copyright © 2017 Elsevier Ltd. All rights reserved.

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