BACKGROUND: Femoroacetabular impingement is characterized by an abnormal contact between the acetabulum and the femoral head-neck junction. Femoroacetabular impingement shows three main clinical frameworks: pincer-FAI , cam-FAI and cam-pincer mixed form. The aim of the study was to investigate the correlation between femoroacetabular impingement, imaging, activity and chondral damages. METHODS: Forty-one patients, undergoing arthroscopic chondroartroplasty for cam and cam-pincer mixed form were considered. All patients underwent an X-Ray hip evaluation (G1 group), while 15 patients also underwent a pelvis MRI evaluation (G2 subgroup). For G1 patients, the superior-inferior offset ratio and alpha angle were calculated from the X-Ray examinations. For G2 patients, the antero-posterior offset ratio was also calculated from pelvis MRI. Chondral damage was classified according to the Outerbridge Classification. RESULTS: The superior-inferior offset ratio and the antero-posterior offset ratio were respectively 0.50±0.23 and 0.33±0.19. The α angle predictive for a chondral damage of IV degree was 81.5°. The chondral damage of the patients suffering from cam-FAI and cam-pincer mixed form were respectively 3.53±0.80 and 3.00±1.41. CONCLUSIONS: From the results was possible to: 1) elaborate two tables providing a reliable indirect calculation of the alpha angle; 2) establish an alpha angle cut-off value indicative for a IV degree chondral damage; 3) show that pincer-FAI does not represent an aggravating factor for chondral damage; 4) show that the level of sports activity was related to the severity of chondral damage; and 5) show that a physically demanding occupation was not an aggravating factor for chondral damage.

Femoroacetabular impingement: correlation between imaging parameters, sport activity, and chondral damage / Bisciotti, Andrea; Pogliacomi, Francesco; Cepparulo, Riccardo; Fiorentino, Gennaro; DI Pietto, Francesco; Sconfienza, Luca M; Bisciotti, Alessandro; Bisciotti, Gian Nicola. - In: THE JOURNAL OF SPORTS MEDICINE AND PHYSICAL FITNESS. - ISSN 1827-1928. - 62:6(2022), pp. 803-811. [10.23736/S0022-4707.21.12274-1]

Femoroacetabular impingement: correlation between imaging parameters, sport activity, and chondral damage

Pogliacomi, Francesco;
2022-01-01

Abstract

BACKGROUND: Femoroacetabular impingement is characterized by an abnormal contact between the acetabulum and the femoral head-neck junction. Femoroacetabular impingement shows three main clinical frameworks: pincer-FAI , cam-FAI and cam-pincer mixed form. The aim of the study was to investigate the correlation between femoroacetabular impingement, imaging, activity and chondral damages. METHODS: Forty-one patients, undergoing arthroscopic chondroartroplasty for cam and cam-pincer mixed form were considered. All patients underwent an X-Ray hip evaluation (G1 group), while 15 patients also underwent a pelvis MRI evaluation (G2 subgroup). For G1 patients, the superior-inferior offset ratio and alpha angle were calculated from the X-Ray examinations. For G2 patients, the antero-posterior offset ratio was also calculated from pelvis MRI. Chondral damage was classified according to the Outerbridge Classification. RESULTS: The superior-inferior offset ratio and the antero-posterior offset ratio were respectively 0.50±0.23 and 0.33±0.19. The α angle predictive for a chondral damage of IV degree was 81.5°. The chondral damage of the patients suffering from cam-FAI and cam-pincer mixed form were respectively 3.53±0.80 and 3.00±1.41. CONCLUSIONS: From the results was possible to: 1) elaborate two tables providing a reliable indirect calculation of the alpha angle; 2) establish an alpha angle cut-off value indicative for a IV degree chondral damage; 3) show that pincer-FAI does not represent an aggravating factor for chondral damage; 4) show that the level of sports activity was related to the severity of chondral damage; and 5) show that a physically demanding occupation was not an aggravating factor for chondral damage.
2022
Femoroacetabular impingement: correlation between imaging parameters, sport activity, and chondral damage / Bisciotti, Andrea; Pogliacomi, Francesco; Cepparulo, Riccardo; Fiorentino, Gennaro; DI Pietto, Francesco; Sconfienza, Luca M; Bisciotti, Alessandro; Bisciotti, Gian Nicola. - In: THE JOURNAL OF SPORTS MEDICINE AND PHYSICAL FITNESS. - ISSN 1827-1928. - 62:6(2022), pp. 803-811. [10.23736/S0022-4707.21.12274-1]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11381/2893806
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