Glenn my wife went thru the frozen shoulder problem after a very serious bicycle accident. It was not "Rotator Cuff." Although they did not operate in the traditional sense they did an arthroscopic procedure. At the time she only 20% movement. The memory is a little vague on the exact details, but she just mentioned that while she was under anesthesia they also put her arm/shoulder in some type of medical device that forced movement to the arm. She then had to undergo therapy for 6 months. She has total movement today, she was about 49 years old when this all happened. I remember it was painful and the day she was able to really reach and stretch to a top shelf in a closet at home it was a major victory. Would she do it again? No on the accident but for results of the procedure, yes. The procedure was done by a medical group called University Orthopedics, the group is an arm ( no pun intended) of the Brown University Medical School here in Rhode Island.