膝关节内侧半月板后根部损伤分型及相关病变的MRI分析  

MRI analysis of injury patterns and associated lesions of the medial meniscus posterior root in the knee joint

作　　者：李东明[1] 吴海燕[1] 曾桔 罗铧 罗容智[1] 陈鹏旭 LI Dongming;WU Haiyan;ZENG Ju;LUO Hua;LUO Rongzhi;CHEN Pengxu(Department of Medical Imaging,Sichuan Orthopedics Hospital,Chengdu 610041,China;Department of Knee Joint,Sichuan Orthopedics Hospital,Chengdu 610041,China)

机构地区：[1]四川省骨科医院医学影像科,四川成都610041 [2]四川省骨科医院膝关节科,四川成都610041

出　　处：《实用放射学杂志》2024年第11期1852-1856,共5页Journal of Practical Radiology

摘　　要：目的通过大样本量的膝关节内侧半月板后根部(MMPR)损伤的分析,探讨MMPR损伤的分型、伴发损伤及其相关性,以提高对MMPR及相关损伤的全面认识。方法将240例MMPR损伤患者分为5型,测量MMPR撕裂端分离的距离和半月板突出值,记录内侧胫股间室软骨损伤分级;分析MMPR损伤与半月板撕裂部位、撕裂类型及半月板突出、软骨损伤分级的关系。结果MMPR损伤发生率为2.82%,女性是男性的3.14倍。1型和4型MMPR损伤中内侧半月板撕裂以后角和后根部为主,2型、3型和5型无统计学差异;1型MMPR损伤以斜形撕裂为主,2型和3型、5型均以放射状撕裂和复合撕裂为主,4型以复合撕裂为主;3型和4型MMPR的半月板突出发生率明显高于其他型;4型MMPR内侧半月板突出值大于3型;3型MMPR撕裂端分离距离越大,内侧半月板突出值越大;MMPR损伤程度越重,内侧胫股间室软骨损伤分级越大。结论女性比男性更好发MMPR损伤;MMPR损伤分型与内侧半月板撕裂部位、撕裂类型、内侧半月板突出有相关性;MMPR撕裂端分离距离与内侧半月板突出值呈正相关;MMPR损伤程度与内侧胫股间室软骨损伤程度相关。Objective To investigate the classification,concomitant injuries,and their correlations of medial meniscus posterior root(MMPR)injuries through a large-sample analysis,to enhance the comprehensive understanding of MMPR and related injuries.Methods A total of 240 patients with MMPR injuries were divided into 5 types.The distance of the torn end separation and the value of meniscus protrusion of MMPR were measured,and the grading of cartilage injury in the medial tibiofemoral compartment was recorded.The relationships between MMPR injuries and meniscus tear location,tear type,meniscus protrusion,and grading of cartilage injury were analyzed.Results The incidence of MMPR injuries was 2.82%,with females being 3.14 times more affected than males.Medial meniscus tears in type 1 and type 4 MMPR injuries were predominantly located in the posterior horn and posterior root,while there were no statistical differences among types 2,3,and 5.Type 1 MMPR injuries were predominantly oblique tears,types 2,3,and 5 were predominantly radial and complex tears,and type 4 was predominantly complex tears.The incidence of meniscus protrusion was significantly higher in types 3 and 4 MMPR injuries compared to other types.The value of medial meniscus protrusion was greater in type 4 MMPR than in type 3.In type 3 MMPR injuries,a larger torn end separation distance correlated with a greater value of medial meniscus protrusion.The severity of MMPR injuries correlated positively with the grading of cartilage injury in the medial tibiofemoral compartment.Conclusion Females are more prone to MMPR injuries than males.The classification of MMPR injuries correlates with the location and type of medial meniscus tears,as well as medial meniscus protrusion.There is a positive correlation between the torn end separation distance and the value of meniscus protrusion in MMPR injuries.The severity of MMPR injuries correlates with the degree of cartilage injury in the medial tibiofemoral compartment.

关 键 词：膝关节 内侧半月板后根部 磁共振成像 

分 类 号：R684[医药卫生—骨科学] R445.2[医药卫生—外科学]