Beverly Hills orthopedic surgeons Dr. Joe Cooper specialize in the diagnosis and treatment of knee conditions and injuries. Knee injuries can be debilitating and prevent you from participating in your active everyday life. Dr. Cooper offers advanced and comprehensive sports medicine care for patients of all ages and activity levels with knee pain and injuries. From common knee injuries such as ACL injuries and knee arthritis, to complex arthroscopic reconstructive knee surgery, we can help. Learn more about specific knee conditions and our treatments by selecting the appropriate page.