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Acta ortop. bras ; 19(1): 22-27, 2011. ilus, graf, tab
Article in Portuguese | LILACS | ID: lil-582361

ABSTRACT

OBJETIVO: Descrever os achados em artro RM de sujeitos com suspeita de lesão do labrum acetabular. MÉTODO: Foram analisadas 108 artro RM de quadris em 2007/2008. Dois radiologistas independentemente analisaram as imagens e foi considerada a resposta comum entre eles. Com base em seus pareceres observou-se o local e estadiamento das lesões labrais e condrais, as alterações anatômicas, e a presença de tendinite e bursite trocantérica. RESULTADO: As lesões labrais grau I ocorreram em 41 por cento dos casos, grau II em 31 por cento, e grau III em 29 por cento. O IFA tipo cam foi frequente em 36 por cento dos casos, tipo pincer em 11 por cento, e IFA misto em 13 por cento, nestes casos 57 por cento apresentaram lesão labral grau III, A lesão condral grau I foi observada em 51 por cento acetábulos, as de grau II em 13 por cento, e grau III em 18 por cento. CONCLUSÃO: As alterações morfológicas que provocam IFA do tipo cam foram as mais prevalentes. Em relação ao grau de lesão labral e condral foram predominantes as lesões grau I independente da presença ou do tipo de IFA, exceto em IFAs mistos onde houve predomínio de lesão labral grau III. Não foi observada uma relação entre o grau de lesão labral e condral.


OBJECTIVE: To describe the MR arthrographic findings in subjects with suspected acetabular labral tears of the hip. METHOD: 108 hip MRa results were analyzed in 2007-2008. Two radiologists independently interpreted the images, and the consensual answers between them were considered for analysis. Based on their opinions, information was obtained on the location, staging of the chondral and labral lesions, anatomic alterations, and the presence of trochanteric bursitis and tendonitis. RESULTS: 1st degree labral lesions occurred in 41 percent of cases, 2nd degree in 31 percent, and 3rd degree in 29 percent. The cam type FAI was common in 36 percent of cases, pincer FAI in 11 percent, and mixed cam-pincer FAI in 13 percent; in these cases 57 percent had grade III labral lesions. 1st degree chondral lesions were observed in 51 percent of acetabulum, 2nd degree in 13 percent, and 3rd degree in 18 percent. CONCLUSION: The morphologic alterations that cause cam type FAI were the most common. With respect to the degree of labral and chondral lesions, 1st degree lesions were the most common, irrespective of the presence or type of FAI, except in mixed cam-pincer FAIs, in which 3rd degree lesions were predominant. No relationship was observed between the degree of labral and chondral lesion.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Acetabulum , Acetabulum/injuries , Cartilage, Articular/pathology , Fractures, Bone , Femoracetabular Impingement/etiology , Arthrography , Acetabulum , Diagnostic Imaging , Hip Injuries , Image Interpretation, Computer-Assisted
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