The iliopsoas tendon is the conjoined terminal tendon of the psoas major and iliacus, which begins to form at the pelvic brim, passes beneath the inguinal ligament through the muscular compartment (lacuna musculorum) with the femoral nerve, and crosses the front of the hip capsule to insert on the lesser trochanter. Internal snapping hip syndrome (coxa saltans interna) occurs when the taut iliopsoas tendon snaps over the iliopectineal eminence or femoral head during hip extension from flexion, producing the palpable and often audible snap of the groin.
| Muscle | |
|---|---|
| Attachment | Lesser trochanter, the conjoined insertion of psoas and iliacus tendons |
Hip flexion force transmission; the largest tendon crossing the hip joint; snapping hip source when tight
Dynamic ultrasound confirms the snapping tendon mechanism, and ultrasound-guided injection of the iliopsoas bursa helps confirm the tendon as the pain source. Iliopsoas tendon release, by tenotomy at the lesser trochanter, arthroscopic release at the level of the hip joint, or lengthening at the musculotendinous junction, is performed for refractory internal snapping hip and for iliopsoas impingement on total hip arthroplasty components. Iliopsoas tendinopathy at the lesser trochanter produces anterior hip and groin pain reproduced by resisted hip flexion from extension.
Iliopsoas tendon snapping over the iliopectineal eminence producing groin snapping and pain managed with eccentric hip flexor loading and tendon release for refractory cases.
This website uses cookies to enhance your experience. Some are essential for site functionality, while others help us analyze and improve your usage experience. Please review your options and make your choice.
If you are under 16 years old, please ensure that you have received consent from your parent or guardian for any non-essential cookies.
Your privacy is important to us. You can adjust your cookie settings at any time. For more information about how we use data, please read our privacy policy. You may change your preferences at any time by clicking on the settings button below.
Note that if you choose to disable some types of cookies, it may impact your experience of the site and the services we are able to offer.
Some required resources have been blocked, which can affect third-party services and may cause the site to not function properly.
This website uses cookies to enhance your browsing experience and ensure the site functions properly. By continuing to use this site, you acknowledge and accept our use of cookies.
