Berhampur: Orthopaedic surgeons in govt-run MKCG Medical College and Hospital here performed a bilateral knee replacement on a 65-year-old woman in a single sitting for the first time in the medical college recently. The patient, who had been facing difficulties in walking due to the severe knee pain for six years, was able to walk on Wednesday when she was discharged.Led by Dr Sambit Kumar Panda, professor and head of department, orthopaedics successfully performed the surgery, with a total operative exposure time of less than three hours, eight days ago. Within 24 hours of surgery, the patient was sitting up and moving her knees. She began walking with the support of a walker the very next day, with minimal pain, said Panda.The patient was suffering from advanced osteoarthritis of both knees. Dean-cum-principal Hari Krushna Behera and superintendent Sudeepa Dash congratulated Panda and his team for the successful operation on the patient.