Tornier Perform™ Reversed Monopost Study

It is anticipated that a total of 150 subjects will be enrolled at up to ten sites over a one year enrollment period. The study has been designed to follow the surgeon's standard of care for subjects treated with shoulder arthroplasty with the device including imaging (x-rays and or CT scans). The primary endpoint of this study is to demonstrate pain relief and improved subjects' shoulder functionality by achieving a mean target of 25-points Total ASES Score improvement, for each type of glenoid (two sub cohorts: Standard with/without BIO-RSA and Augmented baseplate) at 2 years follow-up compared to baseline. Secondary objectives are to collect postoperative data on the related clinical complications and functional outcomes of the device to demonstrate the safety and performance of these implants in a real-world setting.