Anatomical characteristics of femoral intercondylar notch of knee joint for predicting non-contact anterior cruciate ligament tear
10.13929/j.issn.1003-3289.2024.06.022
- VernacularTitle:膝关节股骨髁间切迹解剖特征用于预测非接触性前交叉韧带撕裂
- Author:
Yupeng ZHU
1
;
Jun XU
;
Qizheng WANG
;
Yongye CHEN
;
Siyuan QIN
;
Ruixin YAN
;
Peijin XIN
;
Ning LANG
Author Information
1. 北京大学第三医院放射科,北京 100191
- Keywords:
anterior cruciate ligament;
knee joint;
magnetic resonance imaging
- From:
Chinese Journal of Medical Imaging Technology
2024;40(6):902-906
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe the value of anatomical characteristics of femoral intercondylar notch of knee joint for predicting non-contact anterior cruciate ligament tear(NC-ACLT).Methods MRI data of knee joint of 55 patients with NC-ACLT(NC-ACLT group)and 55 controls(control group)were retrospectively analyzed.The parameters of intercondylar notch,including depth,width,depth/width ratio,opening width,opening width index,area and width of the femoral condyle's outer edge at the same level were measured between groups,and the types of intercondylar notch(type A,U and W)were recorded.Univariate and multivariate logistic regression analysis were used to screen the independent impact factors of NC-ACLT.Receiver operating characteristic curves were drawn,and the area under the curves(AUC)were calculated to evaluate the efficacy of each intercondylar notch parameter for predicting NC-ACLT.Results The depth and depth/width ratio of intercondylar notch in NC-ACLT group were both higher,while the opening width and opening width index of intercondylar notch in NC-ACLT group were both lower than those in control group(all P＜0.05).Multivariate logistic regression analysis revealed that the depth of intercondylar notch was an independent impact factors of NC-ACLT(P＜0.05).Taken 29.55 mm in depth of intercondylar notch,1.45 in depth/width ratio of intercondylar notch,21.15 mm in opening width of intercondylar notch and 0.29 in opening width index as the optimal cut-off value,respectively,the sensitivity of the above parameters for predicting NC-ACLT was 74.55％,58.18％,67.27％and 67.27％,the specificity was 69.09％,80.00％,61.82％and 78.18％,and the AUC was 0.720,0.713,0.652 and 0.710,respectively.Conclusion The anatomical characteristics of femoral intercondylar notch of knee joint could be used to predict NC-ACLT.The depth,depth/width ratio,opening width and opening width index of intercondylar notch could be used as predictive indicators.
