Shoulder Replacement

Description

A 3D model of a total shoulder replacement showing the glenoid component seated in the scapular glenoid and the humeral component with its stem inserted into the proximal humerus. The prosthetic head articulates with the glenoid surface to restore shoulder motion. Total shoulder arthroplasty addresses glenohumeral arthritis by replacing both joint surfaces. Anatomic total shoulder replacement preserves the normal anatomic relationship, while reverse total shoulder arthroplasty medializes and distalizes the center of rotation to compensate for rotator cuff deficiency. The choice between anatomic and reverse designs depends on the status of the rotator cuff and glenoid bone stock. Shoulder replacement anatomy and design rationale are core topics in upper extremity orthopedic surgery. Medical advisory board reviewed. Ready for rendering, real-time engines, and 3D printing.