Assessing the Usefulness of Diagnostic Shoulder Arthroscopy in Evaluating Painful Shoulder Replacement: A Retrospective Case Series.

Diagnostic shoulder arthroscopy provided clinically meaningful diagnostic information in patients with painful shoulder arthroplasty and nondiagnostic preoperative evaluations.

Arthroscopy identified occult infection, mechanical pathology, or the absence of intra-articular disease, directly influencing subsequent management decisions.

These findings support the use of arthroscopy as an adjunctive diagnostic tool in select patients with unresolved pain following shoulder arthroplasty.