Michael J. O’Malley, MD, assistant professor of medicine, is a hip and knee replacement surgery specialist who joined the Department of Orthopaedic Surgery in September 2016. Dr. O’Malley completed his fellowship training at the Rothman Institute of Thomas Jefferson University, preceded by residency training at the University of Pittsburgh and medical school at Temple University. Dr. O’Malley specializes in hip and knee arthroplasty with special emphasis on the direct anterior approach to hip arthroplasty robotic-assisted partial knee arthroplasty. Dr. O’Malley trained under some of the most respected and talented orthopaedic surgeons in the field while at the University of Pittsburgh. Hecredits Drs. Larry S. Crossett, Brian A. Klatt, and Freddie H. Fu for their mentorship and guidance, shaping the direction of his clinical practice and research, and ultimately being responsible for his return to the department as a faculty member