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Etiology and Pathomechanics of Femoroacetabular Impingement

  • Femoroacetabular Impingement/Labral Tears (A Zhang, Section Editor)
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Abstract

Purpose of review

Femoroacetabular impingement is a common cause of hip pain in young patients and has been shown to progress to osteoarthritis. The purpose of this review is to better understand the development of femoroacetabular impingement.

Recent findings

Recent literature shows little genetic transmission of FAI. However, molecular studies show strong similarities with the cartilage in osteoarthritis. The development of cam lesions has a strong association with sports participation, particularly at the time of physeal closure suggesting abnormal development. Lumbar, pelvis, and femoral biomechanics may also play an important role in dynamic impingement.

Summary

In summary, femoroacetabular impingement is a dynamic process with many influences. Further research is needed to clarify the pathophysiology of FAI development in hopes of finding preventative options to reduce symptoms and progression to osteoarthritis.

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Correspondence to Marc J. Philippon.

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W. Jeffrey Grantham declares that he has no conflict of interest. Marc J. Philippon reports royalties from Smith & Nephew, Arthrosurface, Arthrex, Bledsoe, ConMed Linvatec, DonJoy, SLACK Inc., and Elsevier, consultancy fees from Smith & Nephew and MIS, and research support from Smith & Nephew, Ossur, Arthrex, and Siemens.

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Grantham, W.J., Philippon, M.J. Etiology and Pathomechanics of Femoroacetabular Impingement. Curr Rev Musculoskelet Med 12, 253–259 (2019). https://doi.org/10.1007/s12178-019-09559-1

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