There’s some debate among orthopedic surgeons on this point. Having both procedures at the same time saves money and the inconvenience of two operations. But in some young adults, manipulation may be all that’s needed.
With a good rehab program, they can regain motion and strength without a major rotator cuff repair. This is more likely to occur when the tear is mild (as opposed to a massive tear).
On the other hand, some studies have shown that both procedures can be done during the same operation with equally good results. Recovery is a little slower for patients with adhesive capsulitis (frozen shoulder). But pain relief is immediate and equal to patients with a rotator cuff tear without stiffness.