Osteoarthritis is a common form of arthritis. It usually occurs with age. It is a joint disorder which results from the breakdown of joint cartilage and underlying bone. Its symptoms include joint pain, swelling, stiffness, weakness in the joints and reduced motion. Joints near the ends of the fingers, knees, hips and lower back are some of the most commonly affected joints. A genetic involvement is usually found in most of the cases. However, excess body weight, joint injury and abnormal limb development are the most common causes of osteoarthritis. Osteotomy, hemiarthroplasty, joint replacement surgery, arthroscopic surgery and total shoulder arthroplasty are some effective treatment methods for the treatment of osteoarthritis. This book presents the complex subject of osteoarthritis in the most comprehensible and easy to understand language. It presents researches and studies performed by experts across the globe. The extensive content of this book provides the readers with a thorough understanding of the subject.