Zachary Adler, MD, is a board-certified orthopedic surgeon who specializes in joint replacement and trauma surgeries. In addition to diagnosing and treating fractures and other musculoskeletal injuries of the upper and lower extremities, Dr. Adler has clinical interests in primary and revision total hip and knee replacements. Away from work, he enjoys road and mountain biking, skiing and woodworking. The conditions Dr. Adler treats include: Hip osteoarthritis Knee osteoarthritis Hip avascular necrosis Complications of hip fractures Rheumatoid arthritis of the hip and knee