Arthroplasty
Total shoulder arthroplasty and hemiarthroplasty are options when treating patients with glenohumeral joint osteoarthritis.

Rationale
The body of evidence4, 16, 17, 18, 19 , 20, 21 supports the use of total shoulder arthroplasty or hemiarthroplasty for glenohumeral osteoarthritis. However, there is no reliable evidence for the use of humeral resurfacing in the existing literature for the treatment of glenohumeral joint osteoarthritis. Total shoulder arthroplasty or hemiarthroplasty provide significant improvements in pain, global health assessment, function, and quality of life scores  4, 16, 17, 18, 19, 20, 21. The majority of studies 4, 18, 21 supported the use of hemiarthroplasty when performed in patients with naturally concentric glenoids or those reamed to concentricity.