A 63-year-old man comes to the physician's office due to long- | Uworld | Step 1

A 63-year-old man comes to the physician's office due to long-standing osteoarthritis that is refractory to over-the-counter analgesics. After discussing various treatment options with his physician, the patient is referred to a surgeon for right total hip arthroplasty. His acute postoperative course is unremarkable. During a follow-up appointment, the patient reports difficulty walking despite minimal pain. On examination, he leans to his right side when walking. When asked to stand on his right leg, the patient's left hip tilts downward.