MRI探究交叉韧带松紧度与髌股关节面损伤相关性的临床应用

目的　探究交叉韧带松紧度与髌股关节面损伤程度的相关性，分析个体交叉韧带长度的解剖差异对髌股关节面损伤的影响，为预防和诊治髌股关节面疾病提供新的依据。 方法　随机收集南方医科大学珠江医院2016年10月至2017年12月110例膝关节MRI资料，磁共振矢状位上测量前、后交叉韧带长度A与B，测量前、后交叉韧带起止点距离La与Lb，计算交叉韧带松紧度M值；根据矢状位与冠状位上评判髌股关节面损伤程度0、I、II、III与IV级并分别设5个组。通过SPSS20.0统计学软件，将所得数据进行One-Way ANOVA方差分析与Spearman相关性分析，探究交叉韧带松紧度与髌股关节面损伤程度的相关性。 结果　One-Way ANOVA方差分析得出各组M值两两之间均存在显著性差异（P<0.05），Spearman相关性分析显示M值与髌股关节损伤程度间存在正相关性。 结论　交叉韧带松紧度与髌股关节面损伤存在相关性，随着M值越大，髌股关节面损伤程度越严重。

Exploring the clinical correlation between tightness of cruciate ligaments and injury of patellofemoral joint surfaces through MRI

Objective　To explore the correlation between tightness of cruciate ligaments and injury of patellofemoral joint surfaces, and provide new guidances for the prevention,diagnosis and cure for the diseases of patellofemoral articular surfaces by analyzing the influence of anatomical differences in the length of individual's cruciate ligaments on the injury of patellofemoral articular surfaces.　Methods　A（length of anterior cruciate ligament）, B（length of posterior cruciate ligament）, La（attachment distance of anterior cruciate ligament）and Lb（attachment distance of posterior cruciate ligament）were measured on the sagittal plane from MRI data of 110 knees from 100 patients in Zhujiang Hospital of Southern Medical University between October 2016 to December 2017, and then figured out the value of M which represented tightness of cruciate ligaments; the degree of injury of patellofemoral joint surfaces which were graded 0, I, II, III and IV were evaluated from sagittal and coronal plane, and were classified as 5 groups respectively. Data were analyzed with the methods of One-Way ANOVA and Spearman correlation analysis to explore the correlation between tightness of cruciate ligaments and injury of patellofemoral joint surfaces by SPSS20.0 statistical software.　Results　The M values which were obtained from One-Way ANOVA analysis of variance showed a significant difference between any two groups (P<0.05). Spearman correlation analysis suggested a positive correlation between M value and injury of patellofemoral joint surfaces.　Conclusion　The tightness of the cruciate ligaments has positive correlation with the injury of patellofemoral joint surfaces. The greater the M value is, the more severe the injury of patellofemoral joint surface is.