左边的股骨头（骨折离断）显示了光滑、闪亮的关节软骨，而右边的股骨头则显示了骨关节炎的典型的粗糙、坚硬、不规则的外形。
The femoral head at the left (removed because of fracture) shows smooth, glistening articular cartilage, while the femoral head at the right shows a rough, eburnated, irregular appearance typical for osteoarthritis.