Observational, multi-center, post-market study to provide data on the performance and safety of the TITAN™ Total Shoulder System. The study will enroll patients that underwent total shoulder arthroplasty with the TITAN™ Total Shoulder System per standard of care less than 5 years ago. Available retrospective data up to the 2-year time point will be collected, per the study protocol, from medical record reviews. Prospective observational data will be collected from the time of patient enrollment during the following postoperative clinical visits: 1 year, 2 years, 5 years and 10 years post-surgery.