Prevalence of Radiographic Signs of Femoroacetabular Impingement in Asymptomatic Patients and Non-Athletes

Abstract Objective Femoroacetabular impingement has been described as an anatomical variation of the proximal femur and/or acetabular rim, impinging the hip joint. A portion of the population asymptomatic in the hip may present radiographic changes from femoroacetabular impingement. The aim of the...

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Main Authors: André Sousa Garcia, Murilo Gobetti, Anderson Yutaka Tatei, Guilherme Guadagnini Falótico, Gustavo Gonçalves Arliani, Eduardo Barros Puertas
Format: Article
Language:English
Published: Thieme Revinter Publicações Ltda. 2019-05-01
Series:Revista Brasileira de Ortopedia
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-36162019000100060&lng=en&tlng=en
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author André Sousa Garcia
Murilo Gobetti
Anderson Yutaka Tatei
Guilherme Guadagnini Falótico
Gustavo Gonçalves Arliani
Eduardo Barros Puertas
author_facet André Sousa Garcia
Murilo Gobetti
Anderson Yutaka Tatei
Guilherme Guadagnini Falótico
Gustavo Gonçalves Arliani
Eduardo Barros Puertas
author_sort André Sousa Garcia
collection DOAJ
description Abstract Objective Femoroacetabular impingement has been described as an anatomical variation of the proximal femur and/or acetabular rim, impinging the hip joint. A portion of the population asymptomatic in the hip may present radiographic changes from femoroacetabular impingement. The aim of the present study was to evaluate the prevalence of these signs in asymptomatic and sedentary males. Methods This was a clinical, observational, primary, cross-sectional, controlled study. A total of 32 male volunteers aged between 18 and 40 years, asymptomatic in the hip and sedentary, were selected from a university hospital orthopedic emergency room. All patients underwent standard anteroposterior pelvic radiographs. The measurements of the alpha angle, the retroversion index, the ischial spine signal, and the posterior wall sign were analyzed. Results The mean age was 29 years (18-40 years old). The prevalence of radiographic signs of femoroacetabular impingement using an alpha angle of 67o was of 53.1%; with an alpha angle of 82o, it was of 31.2%. The mean alpha angle was 67o (52.4-88.2o), with 35.9% of the hips classified as borderline and 6.3% as pathological. The mean alpha angle for the right side was 67.5o (52.5-88.2o), and, for the left, it was 66.6o (53.1- 86.9o). The mean retroversion index was 0.048 (right side: 0.044; left side: 0.052). The spine signal was positive in 15.6%, and the posterior wall sign, in 20.3% of the cases. Conclusion This study showed that the prevalence of radiographic signs in a population of asymptomatic and sedentary adult men was high (31.2%). New studies are required to explian the actual clinical significance of this finding.
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spelling doaj.art-03b432615d2144c9a1aa7303aa6d007c2024-04-28T07:43:53ZengThieme Revinter Publicações Ltda.Revista Brasileira de Ortopedia1982-43782019-05-01541606310.1016/j.rbo.2017.11.004S0102-36162019000100060Prevalence of Radiographic Signs of Femoroacetabular Impingement in Asymptomatic Patients and Non-AthletesAndré Sousa GarciaMurilo GobettiAnderson Yutaka TateiGuilherme Guadagnini FalóticoGustavo Gonçalves ArlianiEduardo Barros PuertasAbstract Objective Femoroacetabular impingement has been described as an anatomical variation of the proximal femur and/or acetabular rim, impinging the hip joint. A portion of the population asymptomatic in the hip may present radiographic changes from femoroacetabular impingement. The aim of the present study was to evaluate the prevalence of these signs in asymptomatic and sedentary males. Methods This was a clinical, observational, primary, cross-sectional, controlled study. A total of 32 male volunteers aged between 18 and 40 years, asymptomatic in the hip and sedentary, were selected from a university hospital orthopedic emergency room. All patients underwent standard anteroposterior pelvic radiographs. The measurements of the alpha angle, the retroversion index, the ischial spine signal, and the posterior wall sign were analyzed. Results The mean age was 29 years (18-40 years old). The prevalence of radiographic signs of femoroacetabular impingement using an alpha angle of 67o was of 53.1%; with an alpha angle of 82o, it was of 31.2%. The mean alpha angle was 67o (52.4-88.2o), with 35.9% of the hips classified as borderline and 6.3% as pathological. The mean alpha angle for the right side was 67.5o (52.5-88.2o), and, for the left, it was 66.6o (53.1- 86.9o). The mean retroversion index was 0.048 (right side: 0.044; left side: 0.052). The spine signal was positive in 15.6%, and the posterior wall sign, in 20.3% of the cases. Conclusion This study showed that the prevalence of radiographic signs in a population of asymptomatic and sedentary adult men was high (31.2%). New studies are required to explian the actual clinical significance of this finding.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-36162019000100060&lng=en&tlng=enfemoroacetabular impacthiphip injuries
spellingShingle André Sousa Garcia
Murilo Gobetti
Anderson Yutaka Tatei
Guilherme Guadagnini Falótico
Gustavo Gonçalves Arliani
Eduardo Barros Puertas
Prevalence of Radiographic Signs of Femoroacetabular Impingement in Asymptomatic Patients and Non-Athletes
Revista Brasileira de Ortopedia
femoroacetabular impact
hip
hip injuries
title Prevalence of Radiographic Signs of Femoroacetabular Impingement in Asymptomatic Patients and Non-Athletes
title_full Prevalence of Radiographic Signs of Femoroacetabular Impingement in Asymptomatic Patients and Non-Athletes
title_fullStr Prevalence of Radiographic Signs of Femoroacetabular Impingement in Asymptomatic Patients and Non-Athletes
title_full_unstemmed Prevalence of Radiographic Signs of Femoroacetabular Impingement in Asymptomatic Patients and Non-Athletes
title_short Prevalence of Radiographic Signs of Femoroacetabular Impingement in Asymptomatic Patients and Non-Athletes
title_sort prevalence of radiographic signs of femoroacetabular impingement in asymptomatic patients and non athletes
topic femoroacetabular impact
hip
hip injuries
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-36162019000100060&lng=en&tlng=en
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