Abstract
Ischiofemoral impingement (IFI) is a recently characterized condition of an abnormal anatomic and functional relationship between the ischial tuberosity and the lesser trochanter. IFI has been associated with repetitive trauma during gait leading to quadratus femoris edema, sciatic nerve irritation, and hamstring tendonitis. Alterations in the ischiofemoral relationship can be due to anatomical variations such as femoral neck anteversion, coxa valga, or other conditions. IFI may result from acquired or iatrogenic problems such as malunited lesser trochanteric fractures or ischial fractures and highly anteverted femoral stems (after hip replacement). These anomalies lead to pathological ischiofemoral contact, which creates impact and shear forces during hip movements. The diagnosis of IFI is based on the typical clinical examination findings and imaging. Treatment of IFI begins with a physical therapy program and consideration for the correction of the anatomic abnormality when needed. Ischiofemoral space decompression can be achieved by performing a lesser trochanterplasty, an ischioplasty, or a combination of both. However, the natural evolution of IFI and the outcomes from long-term treatment demand a better understanding, especially in the asymptomatic individuals.
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Gómez-Hoyos, J., Martin, H.D. (2019). Ischiofemoral Impingement. In: Martin, H., Gómez-Hoyos, J. (eds) Posterior Hip Disorders. Springer, Cham. https://doi.org/10.1007/978-3-319-78040-5_12
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DOI: https://doi.org/10.1007/978-3-319-78040-5_12
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