4. Severe osteoarthritis of the left knee in an 80-year-old male.
Treatment: Total knee arthroplasty
I. Before the surgery, anteroposterior x-ray left knee shows the severe osteoarthritis at the medial side II. One month down the line from the operation, lateral x-ray of the knee III. One month down the line from the operation, anteroposterior x-ray of both knees in a standing position