Could physical therapy for a dislocated shoulder replace surgery?

Very possible: A first time dislocation in absence of broken bone or rotator cuff tear may not require surgery especially in slightly older patient. This is much less likely to become a recurrent problem in an older patient as opposed to the high school or college aged patient. Thus physical therapy to restore motion and strength may be all that is needed.

Yes: Physical therapy can absolutely treat the problem but depends on whatever else may be wrong such as a rotator cuff tear, or a fracture. Is this a first time dislocation? What kind of work do u do? Did you have to have the shoulder put back in place in the hospital?