• Alessandro Sangiorgio, Davide Previtali, Lorenzo Massimo Oldrini, Stamen Roumenov Milev, Giuseppe Filardo, and Christian Candrian.
• Service of Orthopaedics and Traumatology, Department of Surgery, EOC, Lugano, Switzerland. Electronic address: alessandro.sangiorgio@eoc.ch.
• Injury. 2024 Apr 1; 55 (4): 111449111449.

BackgroundClavicle fractures represent up to 10 % of all fractures, affecting mainly a young population. Open reduction and internal plate fixation provide good results, but evidence on the best plate positioning is still unclear. Aim of this retrospective study was to compare superior and antero-inferior plating positioning in the surgical treatment of displaced midshaft clavicle fractures.Materials And Methods104 patients aged > 18 years, treated surgically with plate fixation (51 superior, 53 antero-inferior) for a midshaft clavicle fracture from January 2010 to April 2021 were included. At the time of the visit, mean follow-up time was 6.6 ± 2.6 years. Shoulder function was evaluated with the use of Constant-Murley Score (CMS) and Disabilities of the Arm, Shoulder, and Hand (DASH) score. Return to sport, aesthetic satisfaction, operative time, radiological outcomes, rate of implant removal, and overall patient satisfaction were documented as well.ResultsMean CMS was 94.1 ± 10.0 points in the superior plating group and 93.4 ± 11.6 points in the antero-inferior plating group. DASH score: 4.6 ± 11.0 superior, 5.1 ± 10.5 antero-inferior. Return to sport: 8.2 ± 2.9 superior, 8.2 ± 3.0 antero-inferior. Aesthetic satisfaction: 8.9 ± 1.6 superior, 8.8 ± 2.1 antero-inferior. Overall satisfaction: 9.1 ± 1.5 superior, 8.9 ± 1.7 antero-inferior. The comparison between groups showed no statistically significant differences (p = n.s.) for all outcome measures. Operative time: 101.6 ± 27.3 min superior, 113.0 ± 31.6 min antero-inferior (p = 0.05). Radiological follow-up documented one non-union and one mal-union in the antero-inferior plating group. Overall, 63 patients underwent plate removal: 58.8 % in the superior plating group and 62.3 % in the antero-inferior plating group (p = n.s.). Main reason for plate removal was pain/discomfort.ConclusionsBoth superior and antero-inferior plating provided excellent clinical, functional, and radiological results for the treatment of displaced midshaft clavicle fractures, without significant differences between groups. The superior plating group showed a statistically shorter operative time. High rate of re-interventions with implant removal was documented in both groups.Level Of EvidenceIII.Copyright © 2024 Elsevier Ltd. All rights reserved.

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