If i am experiencing tendonosis, ac joint arthritis and a partial rotator cuff tear, do i need right shoulder arthroscopy?

Maybe: Indication for surgery is failure of reasonable non-operative management, such as pt, possibly a cortisone injection. If symptoms persist, and the pain level and dysfunction rise to the level of surgical consideration, surgery is an excellent option. Beware that repair of the rotator cuff requires 6 weeks of sling wear, and full recovery of around 4-6 months. Discuss with your surgeon.

Maybe: You should have conservative treatment of a steroid injection and physical therapy. If this fails or the rotator cuff tears completely then you might surgery particularly if you are active and under 70.

Partial tear: Maybe. Try nsaids, exercise program and possibly a cortisone injection. If continued pain then surgery is indicated.

Maybe: Initial treatment for the problem would be physical therapy. If the pain and function do not improve, then shoulder arthroscopy is a reasonable treatment.

It depends: All of those diagnoses can be treated with surgery but typically a trial of conservative treatment is used first. If you have failed those treatments and have persistent pain and dysfunction then surgery can be great at restoring your normal activity level and provide pain relief. Thanks.

Possibly: Depends on what treatment you've had already, if the cuff tear is high grade vs low grade, and most of all how symptomatic you are. Generally speaking non-surgical measures including pt and injections should be tried first-surgery is a good backup option if you don't improve. See a specialist, and if in doubt, consider a second opinion. Good luck.