Anatomical Risk Factors of Anterior Cruciate Ligament Injury

Background: Nowadays, the anterior cruciate ligament (ACL) injury has been one of the most common diseases of the knee joint. The relationships between the ACL injury and the anatomical structures are still controversial. This study aimed to identify the anatomical risk factors of ACL injury by magn...

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Main Authors: Lei Shen, Zhi-Gao Jin, Qi-Rong Dong, Liu-Bing Li
Format: Article
Language:English
Published: Wolters Kluwer 2018-01-01
Series:Chinese Medical Journal
Subjects:
Online Access:http://www.cmj.org/article.asp?issn=0366-6999;year=2018;volume=131;issue=24;spage=2960;epage=2967;aulast=Shen
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author Lei Shen
Zhi-Gao Jin
Qi-Rong Dong
Liu-Bing Li
author_facet Lei Shen
Zhi-Gao Jin
Qi-Rong Dong
Liu-Bing Li
author_sort Lei Shen
collection DOAJ
description Background: Nowadays, the anterior cruciate ligament (ACL) injury has been one of the most common diseases of the knee joint. The relationships between the ACL injury and the anatomical structures are still controversial. This study aimed to identify the anatomical risk factors of ACL injury by magnetic resonance imaging (MRI) of the knee. Methods: This was a retrospective study of 125 patients undergoing primary ACL reconstruction between July 2013 and May 2017. Another 125 patients without any organic knee joint injury were served as controls. The shape of intercondylar notch, the intercondylar notch width index, the intercondylar notch height index, the α angle, the β angle, and the medial and lateral tibial plateau slope were measured with MRI and compared. The data were compared by binary logistic regression to find the risk factors. Results: The two groups differed in the proportion of male patients (70.4% vs. 52.0%, χ2 = 8.911, P = 0.003), but gender was excluded as a risk factor for ACL injury with regression analysis (odds ratio = 1.476, 95% confidence interval [CI]: 0.689–3.160, P = 0.317). The injured group was found to have a smaller notch width index (95% CI = 7.960E-23–2.154E-9, P < 0.001), a larger β angle (95% CI = 1.311–1.785, P < 0.001), and a larger lateral tibial plateau slope (95% CI = 1.201–1.683, P < 0.001). The cutoff values of notch width index, β angle, and the lateral tibial plateau slope were 0.252, 38.5°, and 7.5°, respectively. Conclusions: In this study, a narrow intercondylar notch (intercondylar notch width index <0.252), a larger lateral tibial slope (>7.5°), and larger β angle (>38.5°) might be the factors associated with ACL injury. Trial Registration: ChiCTR-RRC-17014116; http://www.chictr.org.cn/showproj.aspx?proj=24119.
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spelling doaj.art-3616600696984ac486efc3cd7ebf284d2022-12-22T00:21:31ZengWolters KluwerChinese Medical Journal0366-69992542-56412018-01-01131242960296710.4103/0366-6999.247207Anatomical Risk Factors of Anterior Cruciate Ligament InjuryLei ShenZhi-Gao JinQi-Rong DongLiu-Bing LiBackground: Nowadays, the anterior cruciate ligament (ACL) injury has been one of the most common diseases of the knee joint. The relationships between the ACL injury and the anatomical structures are still controversial. This study aimed to identify the anatomical risk factors of ACL injury by magnetic resonance imaging (MRI) of the knee. Methods: This was a retrospective study of 125 patients undergoing primary ACL reconstruction between July 2013 and May 2017. Another 125 patients without any organic knee joint injury were served as controls. The shape of intercondylar notch, the intercondylar notch width index, the intercondylar notch height index, the α angle, the β angle, and the medial and lateral tibial plateau slope were measured with MRI and compared. The data were compared by binary logistic regression to find the risk factors. Results: The two groups differed in the proportion of male patients (70.4% vs. 52.0%, χ2 = 8.911, P = 0.003), but gender was excluded as a risk factor for ACL injury with regression analysis (odds ratio = 1.476, 95% confidence interval [CI]: 0.689–3.160, P = 0.317). The injured group was found to have a smaller notch width index (95% CI = 7.960E-23–2.154E-9, P < 0.001), a larger β angle (95% CI = 1.311–1.785, P < 0.001), and a larger lateral tibial plateau slope (95% CI = 1.201–1.683, P < 0.001). The cutoff values of notch width index, β angle, and the lateral tibial plateau slope were 0.252, 38.5°, and 7.5°, respectively. Conclusions: In this study, a narrow intercondylar notch (intercondylar notch width index <0.252), a larger lateral tibial slope (>7.5°), and larger β angle (>38.5°) might be the factors associated with ACL injury. Trial Registration: ChiCTR-RRC-17014116; http://www.chictr.org.cn/showproj.aspx?proj=24119.http://www.cmj.org/article.asp?issn=0366-6999;year=2018;volume=131;issue=24;spage=2960;epage=2967;aulast=ShenAnatomy; Anterior Cruciate Ligament Injuries; Risk Factors
spellingShingle Lei Shen
Zhi-Gao Jin
Qi-Rong Dong
Liu-Bing Li
Anatomical Risk Factors of Anterior Cruciate Ligament Injury
Chinese Medical Journal
Anatomy; Anterior Cruciate Ligament Injuries; Risk Factors
title Anatomical Risk Factors of Anterior Cruciate Ligament Injury
title_full Anatomical Risk Factors of Anterior Cruciate Ligament Injury
title_fullStr Anatomical Risk Factors of Anterior Cruciate Ligament Injury
title_full_unstemmed Anatomical Risk Factors of Anterior Cruciate Ligament Injury
title_short Anatomical Risk Factors of Anterior Cruciate Ligament Injury
title_sort anatomical risk factors of anterior cruciate ligament injury
topic Anatomy; Anterior Cruciate Ligament Injuries; Risk Factors
url http://www.cmj.org/article.asp?issn=0366-6999;year=2018;volume=131;issue=24;spage=2960;epage=2967;aulast=Shen
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AT zhigaojin anatomicalriskfactorsofanteriorcruciateligamentinjury
AT qirongdong anatomicalriskfactorsofanteriorcruciateligamentinjury
AT liubingli anatomicalriskfactorsofanteriorcruciateligamentinjury