While on active duty and during command sponsored soft ball game, injured right knee jumping over fence ( heard knee pop, how ever still able to walk). Came out of game limping, and went home. Jumped off home steps (about 2 ft high), felt another pop and hit the ground in a lot of pain. Navy hospital Otho department, X-rayed and schedule orthoscopic surgery. Doctor stated he cleaned up meniscus, however I had severed the ACL. He stated knee was in good shape otherwise, and work fine as long as I did not play football or soccer. After retirement, I had VA disability exam, 2 years later. Told doctor about knee surgery, and he stated right knee check out fine, and did no rate for any disability. Too very good care of knee ( over the counter pain Med for years), until I could not handle pain. Went to my new civilian Orthopedic Dr, and he stated I had bone on bone and tried knee injections, which fail to help. Had to have Total Knee Replacement. Do I have a case to seek disability compensation for total knee replacement?