MRI评价膝关节损伤的临床意义

Clinical evaluation of MRI in diagnosis of knee joint injury.

目的探讨MRI对膝关节损伤的诊断价值。方法搜集57例膝关节外伤病例,伤后48 h内行X线平片检查,伤后10 d内行MRI检查。分析MRI所见,并与X线平片比较。结果本组57例X线平片均未见明确异常;MRI检出隐性骨折9例,股骨远端骨挫伤18例,胫骨近端骨挫伤14例,膝关节韧带损伤11例,关节腔积液43例,半月板撕裂41例。结论MRI能发现传统X线检查难以显示的隐性骨折、骨挫伤、关节韧带与软组织损伤等异常。膝关节外伤患者有症状时行MRI检查是合理的。

Objective To evaluate the significance of MRI in diagnosis of knee joint injury.Methods Fifty seven patients with knee joint injury were enrolled in this study.The imaging findings including radiographs and MRI were performed within 48 hours and 10 days respectively after injury,and findings of MRI were analyzed and compared with radiographs.Results No obvious abnormality could be demonstrated on plain X-ray films of 57 cases,however MRI showed trabecular fracture in 9 cases,bone bruise in 32 cases,ligament injury in 11 cases,joint effusion in 43 cases and meniscus laceration in 41 cases.Conclusion Compared with radiographs,trabecular fracture,bone bruise and adjacent soft tissue injuries caused by knee joint trauma can easily be detected by MRI.It is reasonable for symptomatic patients with knee joint injury to perform MRI for further diagnosis and treatment.