Anyone have experience with this shoulder replacement technique. Dr. Frederick Matsen in Seattle pioneered it. It is the same surgery (and OS) that Hope Solo had. On the humerus the surgery is the same as TSR. On the glenoid, instead of a plastic socket they gently ream the glenoid to ensure an exact match to the replacement head. A thin layer of microfiber grows and acts as a type of cartilage. The benefit is a full return to activities. The potential downside may be in longevity and potential glenoid wear. It also tends to be a longer recovery.