Prosthesis position in shoulder arthroplasty. A cadaver study of the humeral component.
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 degrees of retroversion there was no difference between the external rotation of the inserted prosthesis and the external rotation of the joint before arthroplasty.
D001696:Biomechanical Phenomena; D006801:Humans; D006811:Humerus / Q000502:physiology; D007595:Joint Prosthesis; D009068:Movement; D011187:Posture; D012785:Shoulder Joint / Q000502:physiology* / Q000601:surgery