Arthritic Shoulder, Anterior View

Description

Anterior exposure of the male glenohumeral joint centers on the humeral head articulating with the glenoid cavity of the scapula, with the cartilage surfaces rendered as a glossy layer over subchondral bone. Flattening and erosion along the glenoid fossa are evident, and the humeral head contour appears less spherical, consistent with degenerative remodeling at the ball-and-socket interface. Superior to the joint line, the distal clavicle and acromial region sit as landmarks for the coracoacromial arch, while the coracoid process projects anterolaterally, framing the anterior aspect of the capsule. Degenerative change at the glenoid is often the limiting factor in shoulder osteoarthritis, because posterior glenoid wear and loss of congruence drive humeral head subluxation and progressive stiffness even when the rotator cuff remains intact. Painful loss of external rotation and night pain typically track with cartilage loss, osteophyte formation at the humeral anatomic neck, and subchondral sclerosis; this view focuses attention on the joint surfaces where arthroplasty planning lives or dies. A hard joint line. For surgeons, appreciating anterior landmarks in relation to the articular surface also aligns with the deltopectoral approach, where exposure proceeds between deltoid and pectoralis major with the subscapularis and capsule encountered anteriorly. Use this illustration in gross anatomy and musculoskeletal pathology teaching to contrast normal articular cartilage with osteoarthritic surface wear, and in orthopedic lecture slides addressing glenoid morphology, concentric versus eccentric wear patterns, and total shoulder arthroplasty versus hemiarthroplasty decision-making. It also suits medical publishing layouts discussing clinical examination findings and radiographic correlates (joint-space narrowing, osteophytes, glenoid retroversion) alongside a clear anatomic reference. Anatomical accuracy verified by SciePro's Medical Advisory Board.