Prosthesis position in shoulder arthroplasty: A cadaver study of the humeral component

Abstract

In six cadaver shoulder joints, the external rotation was measured applying a constant external torque to the humerus before and after insertion of a non-constrained shoulder joint prosthesis at different degrees of retroversion. At 35-45° of retroversion there was no difference between the external rotation of the inserted prosthesis and the external rotation of the joint before arthroplasty. © 1985 Informa UK Ltd All rights reserved: reproduction in whole or part not permitted.