AJR AJR Integrative Imaging Dec 2008 articles
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DOI:10.2214/AJR.05.0319
AJR 2006; 187:W169-W174
© American Roentgen Ray Society

Clinical Observations

MRI Diagnosis of Contracture of the Gluteus Maximus Muscle

Clement K. H. Chen1,2,3, LeeRen Yeh1,2, Wei-Ning Chang4,5, Huay-Ben Pan1,2 and Chien-Fang Yang1,2

1 Department of Radiology, Kaohsiung Veterans General Hospital, 386 Ta-Chung 1st Rd., Kaohsiung 813, Taiwan.
2 Department of Radiology, School of Medicine, National Yang-Ming University, Taipei 112, Taiwan.
3 Yuh-Ing Junior College of Health Care and Management, Kaohsiung 807, Taiwan.
4 Department of Orthopaedics, Kaohsiung Veterans General Hospital, Kaohsiung 813, Taiwan.
5 Department of Surgery, School of Medicine, National Yang-Ming University, Taipei 112, Taiwan.

OBJECTIVE. The objective of our study was to describe MRI features of contracture of the gluteus maximus muscle after providing a retrospective review of the MRI studies of 21 patients.

CONCLUSION. Gluteal contracture manifests characteristic features on MRI, including an intramuscular fibrotic cord extending to the thickened distal tendon with atrophy of the gluteus maximus muscle and posteromedial displacement of the iliotibial tract. In advanced cases, medial retraction of the muscle and its tendon results in a depressed groove at the muscle-tendon junction and external rotation of the proximal femur. Clinical correlation and meticulous physical examination may confirm the MR diagnosis.

Keywords: buttocks • contracture • hip • MRI • muscles • musculoskeletal imaging


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