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Vol. 60. Issue 2.
Pages 105-118 (March - April 2018)
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Vol. 60. Issue 2.
Pages 105-118 (March - April 2018)
Update in Radiology
DOI: 10.1016/j.rxeng.2018.02.002
Extra-articular hip impingement: A review of the literature
Atrapamientos y choques extraarticulares de la cadera: revisión de la literatura
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N. Arévalo Galeanoa,
Corresponding author
noeliaarevalo@hotmail.com

Corresponding author.
, N. Santamaría Guineab, J. Gredilla Molineroc, M. Grande Bárezb
a Servicio de Radiodiagnóstico, Hospital Universitario Clínico San Carlos, Madrid, Spain
b Unidad Central de Radiodiagnóstico, Hospital Universitario Infanta Leonor, Madrid, Spain
c Servicio de Radiodiagnóstico, Hospital Universitario Ramón y Cajal, Madrid, Spain
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Tables (2)
Table 1. Summary of the different forms of extra-articular hip impingement.
Table 2. Etiological and predisposing factors of ischiofemoral impingement.
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Abstract

Hip and groin pain is a common clinical problem. Multiple causes can generate hip or groin pain, often sharing clinical and demographic characteristics. Diagnostic imaging tests play an important role in the etiological diagnosis. New forms of extra-articular hip impingement have recently been recognized as a cause of hip pain and limited function especially in young active patients. These conditions include ischiofemoral impingement, anterior inferior iliac spine and subspine impingement, iliopsoas impingement and greater trochanteric-pelvic impingement. In general, they are caused by a mechanical conflict with an abnormal or excessive contact between the proximal femur and pelvis and/or soft tissue between them. In this manuscript we review the physiopathology, clinical presentation, the most common radiologic findings and treatment of these forms of extra-articular hip impingement.

Keywords:
Extra-articular hip impingement
Ischiofemoral impingement
Subspine impingement
Psoas impingement
Greater trochanteric-pelvic impingement
Resumen

El dolor inguinal o de cadera es un motivo de consulta muy frecuente. Debido a las múltiples causas que pueden generarlo, y a que en muchas ocasiones comparten características clínicas y demográficas, las pruebas de imagen desempeñan un papel complementario en el diagnóstico etiológico. Se han descrito nuevas formas de atrapamiento extraarticular de la cadera como causa de dolor y limitación funcional, en especial en pacientes jóvenes activos. Incluyen el atrapamiento isquiofemoral, el choque subespinoso o de la espina iliaca anteroinferior, el atrapamiento del iliopsoas y el choque pélvico-trocantéreo. De forma general, se deben a un problema mecánico que conduce al contacto anormal o excesivo entre el fémur proximal y la pelvis ósea, o las partes blandas interpuestas. Realizamos una revisión actualizada de estas formas de atrapamiento extraarticular de la cadera, describiendo la fisiopatología, las manifestaciones clínicas, los hallazgos radiológicos más comunes y el tratamiento.

Palabras clave:
Atrapamiento extraarticular de cadera
Atrapamiento isquiofemoral
Choque de la espina iliaca anteroinferior
Choque subespinoso
Atrapamiento del iliopsoas
Choque pélvico-trocantéreo

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