Unravelling the Etiology of Shoulder Osteoarthritis

"A low-dose, or quantitative (q) CT scan will be performed on the shoulder. This CT scan will be done to assess the bony structure of the shoulder, as well as bone strength, which can influence the health of the cartilage.~Group 1 participants will complete this scan at baseline, 2-years and 4-years in the affected shoulder, and at baseline and 4-years in the opposite, unaffected shoulder.~Group 2 participants will complete this scan at baseline, 2-years and 4-years."

"A T1Rho MRI will be performed on the shoulder. This imaging technique uses a special sequence and will be used to assess the muscles and tendons around the shoulder.~Group 1 participants will complete this scan at baseline, 2-years and 4-years in the affected shoulder, and at baseline and 4-years in the opposite, unaffected shoulder.~Group 2 participants will complete this scan at baseline, 2-years and 4-years."

"Motion analysis is the study of how joints move and which muscles fire during specific movements. In the lab, participants will be asked to perform movements that they might do during a typical day or when exercising.~Group 1 participants will complete this scan at baseline, 2-years and 4-years in the affected shoulder, and at baseline and 4-years in the opposite, unaffected shoulder.~Group 2 participants will complete this scan at baseline, 2-years and 4-years."