Patient: X-ray imaging for bilateral only; congenital hip bone coverage insufficiency, left groin pain, onset of six months, initially pain after 30 minutes of walking and demobilization after rest, now developing pain after 5 minutes of walking and soreness in the left groin after rest. No pain on the right side. The doctor characterized it as osteoarthritis of the hip joint. Untreated, the doctor recommended surgery I am 33 years old, is it better to treat surgically or conservatively? If surgery, what is the success rate? How many years after recovery will there be no recurrence? Doctor: For patients with mild acetabular dysplasia, the best time to perform a periacetabular osteotomy is after the onset of symptoms (hip pain, etc.) and before the onset of severe osteoarthritis. This is because when osteoarthritis has progressed to an intermediate or advanced stage, the damage to the cartilage is usually irreversible and the surgical results are less desirable.