Review Question - QID 219915

A 35-year-old male with a past medical history of leukemia treated with high-dose steroids presents with shoulder pain for the last year. He denies any specific trauma or injury to the shoulder. He has tried six weeks of physical therapy and corticosteroid injections which have not improved his symptoms. An MRI of his shoulder demonstrates humeral head flattening and collapse without significant cartilage damage to the glenoid. There is no rotator cuff pathology seen. What procedure is most indicated for this patient's condition?