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Pain Research and Treatment
Volume 2015, Article ID 937431, 4 pages
Clinical Study

A Novel Association between Femoroacetabular Impingement and Anterior Knee Pain

1Hospital 9 de Octubre, Valle de la Ballestera 59, 46015 Valencia, Spain
2Hospital del Mar, Passeig Marítim 25-29, 08003 Barcelona, Spain

Received 16 June 2015; Accepted 2 September 2015

Academic Editor: Bjorn Meyerson

Copyright © 2015 Vicente Sanchis-Alfonso et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Background. For a long time it has been accepted that the main problem in the anterior knee pain (AKP) patient is in the patella. Currently, literature supports the link between abnormal hip function and AKP. Objective. Our objective is to investigate if Cam femoroacetabular impingement (FAI) resolution is related to the outcome in pain and disability in patients with chronic AKP recalcitrant to conservative treatment associated with Cam FAI. Material and Methods. A retrospective study on 7 patients with chronic AKP associated with FAI type Cam was performed. Knee and hip pain were measured with the visual analogue scale (VAS), knee disability with the Kujala scale, and hip disability with the Nonarthritic Hip Score (NAHS). Results. The VAS knee pain score and VAS hip pain score had a significant improvement postoperatively. At final follow-up, there was significant improvement in all functional scores (Kujala score and NAHS). Conclusion. Our finding supports the link between Cam FAI and AKP in some young patients. Assessment of Cam FAI should be considered as a part of the physical examination of patients with AKP, mainly in cases with pain recalcitrant to conservative treatment.