InSpace Accelerated Rehabilitation Study is a research project focused on helping people with severe shoulder injuries called Massive, Irreparable Rotator Cuff Tears (MIRCTs). The study explores two fast-paced rehabilitation programs used with the InSpace device during arthroscopic surgery, a type of minimally invasive surgery using small incisions and a camera. The goal is to see if these programs offer similar benefits to past studies.

• The study is for men and women aged 65 and older who have a specific type of shoulder injury. They should have tried other treatments without success.
• Participants need to be in good health and able to attend follow-up visits and evaluations.
• People with certain medical conditions or past shoulder surgeries are not eligible.

Participation involves comparing different rehabilitation methods, and the study aims to ensure these methods are effective. It's important for participants to understand the potential benefits and risks before joining. The research is conducted at multiple locations, and participants must sign a consent form agreeing to take part. They will be closely monitored to evaluate the effectiveness of the treatment.