Ischiofemoral impingement (annotated MRI)

Case contributed by Dr Prashant Gupta


Right sided buttock pain for last 2 years, not relieved by physiotheraphy.

Patient Data

Age: 45 years
Gender: Female


Both ischio-femoral spaces are narrowed with edema in both quadratus femoris muscles, more on the right side.

Case Discussion

The exact cause of this syndrome is unknown, it is thought that narrowing of the ischiofemoral space is the inciting factor, leading to edema/tears in the quadratus femoris muscle - an external rotator of the hip.

An ischiofemoral (IF) space measurement of <17 mm is said to be suggestive of this syndrome. In one study by Torriani et al, cases had a mean IF space measurement of 13 mm vs 23 mm in controls.

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Case information

rID: 42817
Published: 9th Feb 2016
Last edited: 14th Aug 2019
Inclusion in quiz mode: Excluded

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