• Nina Kabelitz, Method Kabelitz, Herman Frima, Alexandra Rehm, Christoph Sommer, and Christian Michelitsch.
• Department of Trauma Surgery, Kantonsspital Graubünden, Loëstrasse 170, 7000, Chur, Switzerland. kabelitznina@gmail.com.
• Eur J Trauma Emerg Surg. 2022 Apr 1; 48 (2): 1263-1270.

PurposeMidshaft clavicle fractures represent about 4% of all fractures in the emergency department. Non-operative treatment of displaced midshaft clavicle fractures (DMCF) can result in a relatively high non-union rate. Several operative techniques, including intramedullary fixation (IMF) using elastic stable intramedullary nailing (ESIN), have therefore been established. IMF through the medial approach is less suitable for fractures of the lateral diaphysis. IMF of DMCF of the lateral diaphysis through a lateral approach can be an alternative approach for these fractures. The aim of this study is to describe the technique of IMF from the lateral side and to present the functional outcome and complications.MethodsA retrospective cohort study was performed. All patients with a traumatic DMCF treated with IMF using ESIN through a lateral approach between 2014 and 2019 were included. Endpoints were the functional outcome (QuickDASH, Subjective Shoulder Value (SSV)), pain (numeric rating scale (NRS)), daily impairment (activities of daily living (ADL)), complications and implant removal.ResultsForty out of 43 patients were available for follow-up. Mean follow-up was 37 months. Mean age was 24 years (range 13-70). The median QuickDASH score was 0 (IQR 0.0-0.0) and the median SSV was 100 (95-100). The median ADL score was 1 (1-4) and the median NRS was 0 (0-0). No non-union occurred. Implant related irritation occurred in 11 patients (27.5%). Implants were removed in a total of 38 (95%) patients; in 10 cases due to irritation, in 28 cases routinely or on patient's request.ConclusionIMF of DMCF of the lateral diaphysis through a lateral approach leads to excellent functional results and seems to be a suitable option for internal fixation. However, as with IMF from the medial side, it is not without complications and implant-related irritation.© 2021. Springer-Verlag GmbH, DE part of Springer Nature.

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