Fig. 3.

Forty-year-old female with right hip pain pre- (a) and postoperative (b) MR arthrogram axial T1 images demonstrate the normal insertion of the iliopsoas tendon preoperatively (a, arrow). Postoperatively, the iliopsoas tendon demonstrated increased T1 signal, distortion, and disruption below the iliopectineal eminence (b, arrow) with no remaining fibers inserting on the lesser trochanter. This patient also had atrophy of the iliacus (average grade 1.67) and psoas (average grade 3.33) below the iliopectineal eminence. Postoperative imaging was performed approximately 8 months following surgery.