1. A 70-year-old woman The patient was a 70-year-old woman with severe osteoarthritis that lead to her inability to stand up and walking and movements and knee deformity , which was performed simultaneously with bilateral knee replacement of the right and left knees, and was started by the patient's walker the day after surgery. 2. A 33-year-old man A 33-year-old man with femoral head osteonecrosis that lead to limited hip range of motion and severe pain while walking and standing was treated with complete hip replacement surgery and was launched on the day after the surgery.