For patients in this circumstance, surgeon Stephen Raterman, MD, is here to offer the individualized care necessary for them to maximize function and mobility. Dr. Raterman specializes in orthopaedic surgery for the hips, knees, and shoulders — for people of all ages. Although joint problems are most commonly associated with the natural aging ...Hip‧Knee‧Shoulder‧Arthritis‧Contact Us‧OPS-Optimized Positioning System.