At Commonwealth Orthopaedic Centers, surgeon Matthew T. Hummel, M.D. is now performing TOTAL KNEE REPLACEMENT using Mako robotic-arm assisted technology. In addition, both Dr. Hummel and Matthew S. Grunkemeyer, M.D. perform robotic-arm assisted partial knee replacement surgery when appropriate. Robotic-assisted surgery requires advanced training and provides additional precision, in addition to the opportunity for a smaller incision and a potentially quicker recovery.