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ISSN 2007-087X (Print)
Órgano Oficial de la Sociedad Mexicana de Ortopedia Pediátrica

2010, Number 1

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Rev Mex Ortop Ped 2010; 12 (1)

La incidencia de pinzamiento femoro-acetabular después de un deslizamiento epifisiario proximal estable grado I

Ponce LC, Castañeda LP

Language: Spanish
References: 27
Page: 30-36
PDF size: 230.05 Kb.


ABSTRACT

Objective: to determine the incidence of femoroacetabular impingement (FAI) in patients who have had a stable grade I slipped capital femoral epiphysis (SCFE). Method: 183 patients with stable grade I SCFE treated with in situ pinning were reviewed at a minimum follow-up of two years. The specific hip function was evaluated with the Harris Hip Score and the overall function was evaluated with the PODCI scale. We considered FAI to exist when there was significant pain on internal rotation and flexion and radiographically we used the measurement of the contour of the femoral head-neck junction as described by Nötzli to determine the presence of FAI. Results: we identified 56 patients with clinical and radiographic signs of FAI (incidence = 31%). The mean Harris Hip Score for the entire cohort was 82.7, however for patients without FAI it was 95.1 and for patients with FAI it was 78.4 (p = 0.047). The mean PODCI score for the entire cohort was 89.6, for patients without FAI it was 91.1 and for those with FAI it was 83.8 (p = 0.041). Conclusion: Although the results of in situ pinning after a stable grade I SCFE are generally good the occurrence of FAI is not uncommon. Hip function and overall satisfaction are significantly worse when FAI is present. The current standard of care for a stable grade I SCFE is in situ pinning but the evolving knowledge on FAI should lead to improved long-term results. Significance: The incidence of FAI after a stable grade I SCFE was 31%; and the functional results were significantly worse when FAI was present. Level of evidence: IV prognostic.


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