膝关节及其附属结构损伤的低场强MRI诊断  

Diagnosis of Low-field MRI for injuries of knee-joint and its adjunct structures

作　　者：姚亮平[1] 苟昱钦[1] 莫国友[1] 

机构地区：[1]广东省东莞市桥头医院放射科,广东东莞523520

出　　处：《实用医学影像杂志》2012年第2期113-116,共4页Journal of Practical Medical Imaging

摘　　要：目的评价低场强MRI对膝关节及其附属结构损伤的诊断价值。方法对96例因膝关节损伤进行MRI扫描的影像资料作回顾性分析,根据X线检查结果分为膝关节有骨折和无骨折两组。结果 34例X线平片显示有关节骨折的病例,髌骨骨折14例,伴13处附属结构损伤;胫骨骨折9例,伴18处附属结构损伤;股骨骨折6例,伴7处附属结构损伤;多发骨折5例,伴18处附属结构损伤。多发骨折和胫骨平台骨折所致的附属结构损伤以多结构为主。62例X线平片显示无膝关节骨折的病例,MRI显示半月板损伤43例,韧带损伤42例,关节软骨损伤9例。两组经χ2检验,差异有统计学意义(P<0.05)。结论低场强MRI对不同类型的膝关节及其附属结构的损伤具有良好的诊断价值,膝关节多发骨折引起的附属结构损伤最为严重。Objective To evaluate the diagnostic value of low-field MRI for injuries of knee-joint and its adjunct Structures.Methods The MRI findings of 96 patients with injuries of knee-joint and its adjunct Structures were retrospectively analyzed.The cases were divided into fracture and non-fracture groups according to the X-ray plain film.Results Among 34 cases of fracture demonstrated by X-ray plain film,14 patellar fractures were associated with 13 adjunct structures injuries;9 tibial fractures associated with 18 adjunct structures injuries;6 femoral fractures associated with 7 adjunct structures injuries;5 multiple fractures associated with 18 adjunct structures injuries.Adjunct structures injures resulted from the multiple fractures and tibial fracture involved multiple parts.62 cases of non-fracture by X-ray plain film,43 meniscal injuries,42 ligament injuries and 9 disruption of articular cartilage were found on MRI.The difference between two groups was significant by χ2-testing（P0.05）.Conclusion Low-field MRI is valuable in diagnosing for injuries of knee-joint and its adjunct structures of different types,the adjunct structures injuries resulted from multiple fractures and tibial fractures were most severe.

关 键 词：膝关节 骨折 损伤 磁共振成像 

分 类 号：R445.2[医药卫生—影像医学与核医学] R684[医药卫生—诊断学]