Millions of individuals suffer from knee arthritis. When there is no relief from pain, swelling, and limitations with activities, surgery becomes necessary. If just one area of the knee is damaged, a partial knee replacement may be a valid option. This operation has many advantages over a total knee replacement. The magnitude of the procedure and rehabilitation are reduced, the rate of complications is lower, and the knee "feels" more natural since only a portion is replaced. While usually done in individuals 30-50 years of age, this operation can be performed in younger or older patients. Two medical professionals have written this eBook to help patients understand this operation and what to realistically expect as a result. Dr. Frank Noyes, an internationally renowned orthopaedic surgeon, and Sue Barber-Westin, Director of Clinical Research at the Cincinnati SportsMedicine Research Foundation, team up to provide the most current information regarding partial knee replacement.