(SBQ10HK.28.1)
Figures A and B are the radiographs of a 62-year-old patient who presents to the office for evaluation of right groin pain following THA performed 12 months ago. The pain has started insidiously. The patient reports living on the third floor and has pain mostly with stair climbing. She denies start-up pain or pain at rest. Which of the following is the most likely cause of this patient's symptoms?
QID:
216520