Lyons J C, Peterson L F
Mayo Clin Proc. 1984 May;59(5):327-9. doi: 10.1016/s0025-6196(12)61428-1.
Herein we describe a previously seldom recognized variety of snapping hip, which is caused by snapping of the iliopsoas tendon over the iliopectineal eminence when the femur is moved from the flexed position at the hip and extended through 45 degrees of flexion. The finding is demonstrated with the patient supine and gently resisting gravity with the iliopsoas muscle, thus placing it under tension. At approximately 45 degrees of flexion, the iliopsoas tendon in two patients was confirmed radiographically to snap abruptly, coincident with an audible sound over the iliopectineal eminence of the pelvis. We believe that this occurs relatively frequently and is generally asymptomatic.
在此，我们描述了一种以前很少被认识到的弹响髋类型，它是由当股骨从髋关节屈曲位移动并伸展至45度屈曲时，髂腰肌肌腱在髂耻隆起上弹响所引起的。当患者仰卧，髂腰肌轻柔地抵抗重力从而使其处于张力下时，可证实这一发现。在大约45度屈曲时，通过影像学检查确认两名患者的髂腰肌肌腱突然弹响，同时在骨盆的髂耻隆起处可听到一声响声。我们认为这种情况相对常见，且通常无症状。
