Goal-directed, quantifiable rehabilitation protocols for redevelopment of function through improved range of motion, strength and motor control are lacking in patients with musculoskeletal impairments. The successful robotic-assisted rehabilitation of the acute and chronic, severe impairment provides an impetus for applying this technology to UE musculoskeletal impairments. The ability to objectively control and measure the dosing and progression during the rehabilitation process is a valuable tool in the advancement of evidence�based rehabilitation interventions The proposed pilot clinical trial will determine if 8-weeks of robotic rehabilitation improves the rate and quality of recovery of range of motion, strength, and function following rotator cuff repair compared with a conventional physical therapy rehabilitation protocol.