Abstract
After shoulder arthroplasty many pain generators may continue to play a role and these might otherwise be missed in a patient where the post-operative radiograph looks fine. Such conditions might include pain from an adjacent location such as the AC joint, or stress fracture of the acromion with reverse prostheses. Unrecognised infection or rotator cuff tear are also factors to consider. Moreover, anxiety and depression may be relevant to the outcome of shoulder arthroplasty.