I was just informed that bilateral knee replacement surgery is necessary to alleviate pain associated with OA. Before severe arthritis impacted my quality of life, I was very active: karate, motorcycle riding, zumba, basketball, etc, but less so now. I am afraid I will not be able to enjoy any vigorous sports activities if both knees are replaced. I am also relatively young, 56 years old and am very afraid about my future, as I also have a very physically demanding job (veterinarian) and I also travel frequently to Europe on business. I have to decide next week if I will have surgery in September. Any advice or suggestions?