Abstract: An orthopedic shirt used by a patient during a post-operative stage of a repair procedure or treatment involving a patient's shoulder, arm or upper body region, and used with an upper body immobilization device such as an abduction pillow, brace, cast, splint, and the like. The orthopedic shirt consists of a first panel and a second panel that are substantially cut so that either panel may serve as a front or a rear of the shirt. Each panel consists of an outer edge. Each panel further defines a sleeve portion also containing the outer edge. Releasable fasteners are disposed along at least one outer edge of the panels, and sleeve portions of the panels. These fasteners releasably interconnect the two panels, and segments of the sleeves. This releasable interconnection of the panels, and sleeves allows the patient to be dressed or undressed without involving the movement of an immobilized shoulder, an upper body region that has undergone trauma, or an upper body region that has undergone treatment.