Knee arthritis is a potentially devastating condition that affects millions of individuals worldwide. Osteoarthritis (degeneration of joint cartilage and underlying bone) usually affects middle-aged and elderly people, but post-traumatic arthritis can happen to anyone who has suffered a knee injury. Conservative treatment is usually done first for knee arthritis, but when this fails, surgery becomes necessary. Two medical professionals have written this eBook to help patients understand the operations that are currently used to treat knee arthritis for patients of all ages and what to realistically expect as a result of these operations. 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 information that is easy to read and understand regarding knee arthritis.