Karuna Devi, 54 years old lady had crippling pain in both knees for more than a year. She underwent partial knee replacement of damaged knee parts (partial knee osteoarthritis) in our institute. She was pain free, comfortable doing all her activities for 10 years. With aging process, when other knee parts (tri-compartmental osteoarthritis) also got damaged, we converted her partial knee replacement to total knee replacement. And now she is again happy, pain free and active in her daily activities.