Full-field experimental analysis of the influence of trabecular microstructural parameters on the mechanical properties of trabecular bone within osteoarthritic humeral heads

Abstract

Purpose: Total shoulder arthroplasty (TSA) is a common surgical procedure performed to restore function to an end-stage osteoarthritic (OA) shoulder joint. Humeral implant designs involved in TSA procedures continue to evolve, with recent interest towards stemless components. These designs minimize bone removal but rely on trabecular bone within the metaphysis of the proximal humerus to provide fixation and structural stability. Therefore, understanding the mechanical properties and local load carrying capabilities of trabecular bone specific to patients undergoing TSA suffering from end-stage OA is important to ensure longevity of the implant.