磁共振成像2025，Vol.16Issue(10)：98-103,6.DOI:10.12015/issn.1674-8034.2025.10.015
基于MRI与X线评估业余马拉松运动员髌股关节软骨损伤及其影响因素分析
Analysis of patellofemoral joint cartilage injuries and influencing factors in amateur marathon runners based on MRI and X-ray
摘要
Abstract
Objective:To investigate the changes in T2 values of key knee joint structures in amateur marathon runners before and after a half-marathon,explore their correlations with clinical variables,and identify the influencing factors for patellofemoral joint(PFJ)cartilage injury.Materials and Methods:Amateur runners participating in the Xinpu Half Marathon in Zunyi City in October 2024 were prospectively recruited all participants underwent MRI scans of the same-side knee joint using the same equipment and parameters twice:the first scan was performed within 1 week before the race(with no running exercise during this period),and the second scan was conducted within 24 hours after completing the half-marathon.Additionally,all participants received a weight-bearing knee joint X-ray examination.T2 mapping technique was used to measure the T2 values of the PFJ patellar cartilage(PC),medial meniscus(MM),lateral meniscus(ML),anterior cruciate ligament(ACL),posterior cruciate ligament(PCL),popliteus muscle(PM),and medial gastrocnemius(MG).PFJ cartilage was graded according to the Recht MRI grading standard,and knee osteoarthritis(KOA)was graded based on the Kellgren-Lawrence grading(KLG)system using weight-bearing knee X-ray findings.Wilcoxon non-parametric test and paired t-test were applied to analyze the differences in T2 values of the aforementioned structures before and after the race.Spearman and Pearson correlation analyses were used to examine the correlations between the differences in T2 values and age,body mass index(BMI),PFJ cartilage Recht grade,and KOA KLG.Multiple linear regression analysis was further conducted to screen the influencing factors for PFJ cartilage injury.Results:After the half-marathon,the T2 values of the aforementioned knee joint structures were significantly higher than those before the race(all P<0.001).The difference in PC T2 value showed a positive correlation with Recht grade(r=0.84),KLG(r=0.87),age(r=0.62),and BMI(r=0.82)(all P<0.001).Multiple linear regression analysis indicated that BMI,and the average value of Recht grade and KOA KLG were risk factors for PFJ cartilage injury(regression coefficients:0.715 and 2.389,respectively;all P<0.001).Conclusions:Among the population of amateur marathon runners,higher BMI,higher PFJ cartilage Recht grade,and higher KOA KLG can further increase the risk of PFJ cartilage injury.关键词
半程马拉松/跑步相关损伤/髌软骨/磁共振成像/T2 mappingKey words
half-marathon/running-related injury/patellar cartilage/magnetic resonance imaging/T2 mapping分类
医药卫生引用本文复制引用
冉春艳,王显高,徐高强,刘军委,王丹,李小妹,何生生,刘衡,张体江..基于MRI与X线评估业余马拉松运动员髌股关节软骨损伤及其影响因素分析[J].磁共振成像,2025,16(10):98-103,6.基金项目
Guizhou Provincial Science and Technology Program Project[No.Qian Kehe Rencai CXTD(2025)047] （2025）
Zunyi City Science and Technology Program Project[No.Zunshi Kehe HZ(2022)236] 贵州省科技计划项目(编号:黔科合人才CXTD[2025]047) （2022）
遵义市科技计划项目(编号:遵市科合HZ字[2022]236号) （编号:遵市科合HZ字[2022]236号）
