Dr. Keener focuses his practice on shoulder and elbow arthroscopic surgery, throwing shoulder injuries, labral tears and biceps tendon injuries, shoulder instability, rotator cuff disease & tears, frozen shoulder syndrome, minimally invasive shoulder fracture fixation, shoulder and elbow joint replacement, and reverse shoulder arthroplasty, acromioclavicular and sternoclavicular joint injuries. Recognized as a "Best Doctor in America" in the 2012 issue of St. Louis Magazine.