• Franziska von der Helm, Annabel Fenwick, Jan Reuter, Leonard Adolf-Lisitano, Edgar Mayr, and Stefan Förch.
• Klinik für Unfallchirurgie, Orthopädie, Plastische und Handchirurgie, University Hospital of Augsburg, Augsburg, Germany. franziska.vonderhelm@uk-augsburg.de.
• Eur J Trauma Emerg Surg. 2022 Aug 1; 48 (4): 3081-3087.

IntroductionThe humeral shaft fracture is a rare fracture of the long bones with various treatment options. Dreaded complications such as lesions of the radial nerve or non-unions make the decision for what kind of therapy option more difficult. Biomechanically the upper arm is mostly exposed to rotational forces, which affect intramedullary nail osteosynthesis. Additive cerclage may compensate for these in spiral fractures. The aim of this study is to investigate what effect a combination of intramedullary nail osteosynthesis and limited invasive cerclage has on the rate of healing. In addition, this study addresses the question if complications arise as a result of cerclage.MethodsIn this retrospective study, 109 patients were evaluated, who, during a period of 6 years, underwent operative treatment of a humerus shaft fracture with a combination of intramedullary nail osteosynthesis and additive cerclage. The primary end point was to establish the rate of healing. A secondary end point was to evaluate complications such as infections and damage to the nerve. This was followed by an examination of patient files and X-ray images and a statistical analysis with SPSS.Results And ConclusionThe healing process shows a non-union rate of 2.6%, and complications such as secondary radial nerve lesions of 4.6%. The antegrade intramedullary nail osteosynthesis with limited invasive, additive cerclage reduces the risk of non-union and does not lead to an increased risk of iatrogenic damage to the radial nerve. Wound healing was not impaired and there were no infections through the cerclage in our patient cohort.© 2021. The Author(s).

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