Psoas Release for psoas impingement


Administrative Staff
Jun 11, 2013
United States United States
Article updated July 28, 2022, by Jamie and CricketHip.

Release for psoas impingement

The psoas is a large muscle beginning in the lower lumbar region of the spine and extending through the pelvis to the femur as shown in the illustration on the left. It works to flex the hip joint and lift the upper leg towards the body. A common example of the movement created from this muscle is walking. As you can see from the illustration on the right, where it attaches to the femur (thigh bone) it's actually comprised a lot of smaller muscles which combine together and ultimately become a white colored ligament as shown by the blue circle.

Psoas impingement.JPG

Most major muscles in the body have redundancy (other muscles that can take over if the primary one is injured or not functional). In the image on the right, the lower part of the psoas muscle is marked IP which is it's proper name, ilio-psoas. Your can see another muscle beside it marked IM which is the iliacus muscle. When the psoas ligament is divided or cut during a release, its functions are readily taken over by the adjacent muscles.

A psoas release is not considered a major procedure. As far as pain goes, it should be relatively minor. Weight bearing is not limited and there are no hip precautions for dislocation necessary. Patients generally are able to leave the hospital using a single crutch or a cane, which can be discontinued as leg comfort permits. The recommended rehabilitation is walking and formal physical therapy may not be necessary. Following the release procedure, patients may experience some weakness when climbing stairs, walking uphill, or getting into a car. Usually this will disappear with time.
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