Snapping iliopsoas tendon is one of the external causes of a medial snapping hip and occurs when a portion of the iliopsoas tendon moves abruptly onto the superior pubic ramus leading to a snap.
This typically is a result of a rapid relocation of a portion of the iliopsoas tendon, transiently entrapped anterior and lateral to the portion of the iliacus muscle belly during flexion external rotation and abduction of the femur, onto the superior pubic ramus during returning into the neutral position or a bifid tendon moving around itself.
Other rare known cause of snapping iliopsoas tendon is snapping over the adjacent paralabral cyst.
Dynamic ultrasound examination while doing a maneuver to reproduce the snap is often diagnostic 1.
This condition can result in iliopsoas tendinopathy.
Treatment and prognosis
Iliopsoas tendon release or fasciotomy have been used to alleviate pain in those who fail conservative treatment measures.