Dhar : Orthopedic surgeon Dr Amber Mittal performed the first successful knee replacement operation in the district at Mittal hospital on Thursday. This surgery was performed on a 70-year-old man who was suffering from arthritis for a long time. Dr Mittal informed that as per the need of the patient, he used imported joints made in America. He further said that arthritis has become a common problem for the old age people and this operation would be like a boon for them. Director of the Mittal hospital Dr Umesh Mittal informed that with the starting of bone and knee replacement surgery in the hospital, the patients now didn’t need to travel to big cities like Indore.