title: MRI measurement on intercondylar notch after anterior cruciate ligament rupture and its correlation.
abstract: The knee joint is extremely susceptible to injury, which is usually identified by magnetic resonance imaging (MRI). In the present study, MRI was applied to quantitatively detect the association between anterior cruciate ligament (ACL) rupture and anatomic morphologic changes of the intercondylar notch. Forty patients with unilateral ACL rupture who were treated between July, 2013 and October, 2014 were enrolled in the present study. The patients were divided into the observation (affected side) and control (healthy side) groups. MRI measurements were undertaken based on parameters associated with intercondylar notch of double knee joints. The results showed that intercondylar notch width (ICW) in the observation group was significantly smaller than that in the control group, and differences were statistically significant (P<0.05). Differences on the intercondylar notch height and femoral condyle width [epicondylar width (EW)] between the two groups were not statistically significant (P>0.05). Notch width index (NWI) and notch shape index (NSI) in the observation group were significantly less than those in the control group and differences were statistically significant (P<0.05). Differences of Lysholm and Tegner scoring between the two groups were not statistically significant (P>0.05). The differential value of ICW in the observation group was 2.6±1.3 mm and the ACL rupture time of the affected knee was 20.4±1.3 months on average. The correlation was statistically significant (P<0.05). The correlation of Lysholm scoring, Tegner scoring and intercondylar notch stenosis degree on the affected knee was not statistically significant (P>0.05). In conclusion, after ACL rupture, ICW on the affected knee had significant stenosis, NSI and NWI were significantly reduced and the stenosis degree was aggravated with the prolongation of course. By contrast, Lysholm and Tegner scoring of patients with different degrees of stenosis had no correlation.
authors.affiliation: Department of Orthopedics, Xuzhou Third Hospital, Affiliated Hospital of Jiangsu University, Xuzhou, Jiangsu 221005, P.R. China.
authors.forename: Xiao
authors.initials: X
authors.lastname: Ouyang
authors.affiliation: Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China.
authors.forename: Yu Hao
authors.initials: YH
authors.lastname: Wang
authors.affiliation: Hospital Administration Office, Xuzhou Third Hospital, Affiliated Hospital of Jiangsu University, Xuzhou, Jiangsu 221005, P.R. China.
authors.forename: Jian
authors.initials: J
authors.lastname: Wang
authors.affiliation: Department of Orthopedics, Xuzhou Third Hospital, Affiliated Hospital of Jiangsu University, Xuzhou, Jiangsu 221005, P.R. China.
authors.forename: Shi Dong
authors.initials: SD
authors.lastname: Hong
authors.affiliation: Department of Orthopedics, Xuzhou Third Hospital, Affiliated Hospital of Jiangsu University, Xuzhou, Jiangsu 221005, P.R. China.
authors.forename: Feng
authors.initials: F
authors.lastname: Xin
authors.affiliation: Department of Orthopedics, Xuzhou Third Hospital, Affiliated Hospital of Jiangsu University, Xuzhou, Jiangsu 221005, P.R. China.
authors.forename: Lin
authors.initials: L
authors.lastname: Wang
authors.affiliation: Department of Orthopedics, Xuzhou Third Hospital, Affiliated Hospital of Jiangsu University, Xuzhou, Jiangsu 221005, P.R. China.
authors.forename: Xiao Wei
authors.initials: XW
authors.lastname: Yang
authors.affiliation: Department of Orthopedics, Xuzhou Third Hospital, Affiliated Hospital of Jiangsu University, Xuzhou, Jiangsu 221005, P.R. China.
authors.forename: Jing Rong
authors.initials: JR
authors.lastname: Wang
authors.affiliation: Department of Orthopedics, Nanjing First Hospital, Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210006, P.R. China.
authors.forename: Li Ming
authors.initials: LM
authors.lastname: Wang
authors.affiliation: Department of Orthopedics, Nanjing First Hospital, Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210006, P.R. China.
authors.forename: B O
authors.initials: BO
authors.lastname: Wei
authors.affiliation: Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China.
authors.forename: Qing
authors.initials: Q
authors.lastname: Wang
authors.affiliation: Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China.
authors.forename: Wei Ding
authors.initials: WD
authors.lastname: Cui
authors.affiliation: Jiangsu University Health Science Center, Zhenjiang, Jiangsu 212001, P.R. China.
authors.forename: Xing Li
authors.initials: XL
authors.lastname: Fu
keywords: Lysholm scoring; Tegner scoring; cruciate ligament rupture; femoral intercondylar notch; magnetic mesonance imaging