This book offers a concise review and international perspective on state-of-the art unicompartmental knee reconstruction procedures. To apply less invasive procedures resulting in fewer complications and shorter recoveries, it provides insights on patient selection, equipment design, and surgical techniques. Newer concepts such as the use of robotics and haptic surgery as well as outpatient surgeries are natural extensions of these surgeries. Long term outcomes along with complications and future directions are discussed as well.  Partial Knee Arthroplasty presents an ideal resource for the occasional partial knee arthroplastic surgeon to the expert interested in international and contemporary advances in partial knee replacement.