Biomechanical performance of an intramedullary Echidna pin for fixation of comminuted mid-shaft clavicle fractures

Abstract

Surgical fixation of comminuted mid‐shaft clavicle fractures commonly employs intramedullary devices; however, pins with smooth surfaces are prone to migration, whilst threaded pins can be challenging to remove post‐operatively. The aim of this study was to evaluate the biomechanical performance of fractured clavicles repaired using a novel intramedullary Echidna pin device and a non‐threaded Knowles pin. The Echidna pin features retractable spines that engage with the bone to minimize migration and facilitate ease of device removal.