Joint force estimations of reverse total shoulder arthroplasty using musculoskeletal models

Abstract

Reverse total shoulder arthroplasty (RTSA), which was introduced in 2014, is a new shoulder prosthesis. We investigated the joint reaction forces of the three usual types (Medial Glenoid/Medial Humerus, Lateral Glenoid/Medial Humerus, Medial Glenoid/ lateral Humerus). During a passive movement of scapular abduction, the highest joint reaction force was observed with the Medial Glenoid/Lateral Humerus model. Now we are investigating the forces during other active movements.