Total Knee Arthroplasty is the last treatment for severe knee Osteoarthritis.There is major affection in function,muscle isokinetics, and balance after the operation even more than the preoperative levels. This book which is based on a research study conducted on patients with severe knee osteoarthritis who underwent total knee arhtroplasty to compaire two different rehabilitation programs and study the effect of intensive functional rehabilitation on functional ability, isokinetics, and balance of these patients within three months after the operation. This book will be valuable for physical medicine and rehabilitation doctors, knee orthopaedic surgeons and physical therapists.