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Anterior transposition of the radial nerve to achieve primary suture for its reconstruction: Anatomical feasibility study

M. Makeľ, V. Němcová, A. Hora, A. Whitley, M. Kulvajtová, A. Sukop, R. Kaiser

. 2024 ; 89 (-) : 1-6. [pub] 20231129

Language English Country Netherlands

Document type Journal Article

Persistent link   https://www.medvik.cz/link/bmc24007333

INTRODUCTION: Radial nerve palsy after humeral shaft fractures is often associated with formation of a neuroma in continuity. The current standard of treatment is neuroma resection and nerve grafting with contentious results. Anterior transposition of the radial nerve may reduce the length of its path, allowing reconstruction by primary suture. The aim of this study was to determine the maximum length of radial nerve defect that can be treated by the anterior transposition to allow primary suture to be performed. METHODS: We use 10 arms from five fresh cadavers. The radial nerve was dissected in the lateral inter-muscular septum and along the anterior aspect of the forearm. The radial nerve was transected at the level of the spiral groove and both stumps were than transposed anterior to the medial inter-muscular septum. The length of tension-free overlap that could be achieved was measured. RESULTS: The average length of the overlap at zero degrees of elbow flexion was 10.00 ± 1.84 mm. Theoretically, this will allow a defect of 20 ± 3.69 mm SD to be treated by primary suture. CONCLUSION: Our results suggest that anterior transposition can be used for radial nerve defects up to 2 cm; however, dissection of both stumps proved to be challenging.

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$a Makeľ, Michal $u Department of Plastic Surgery, Third Faculty of Medicine, Charles University and University Hospital Královské Vinohrady, Prague, Czech Republic; Department of Anatomy, First Faculty of Medicine, Charles University, Prague, Czech Republic. Electronic address: miso.makel@gmail.com
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