Lawrance J A, Ostlere S J, Dodd C A
Department of Radiology, Nuffield Orthopaedic Centre NHS Trust, Oxford.
Injury. 1996 Apr;27(3):153-5. doi: 10.1016/0020-1383(95)00220-0.
In an attempt to define the magnetic resonance imaging (MRI) features of partial tears of the anterior cruciate ligament (ACL) we retrospectively analysed the MRI scans of 30 patients with a recent arthroscopic finding of a normal, a partial or a completely torn ACL. On review of the original reports MRI correctly predicted 9/9 (100 per cent) complete ACL tears, 11/12 (92 per cent) normal ACLs but only 1/9 (11 per cent) partial ACL tears. On analysis of the MRI there were four features which helped to differentiate partial ACL tears from either complete ACL tears or normal ligaments. These were the appearance of some intact fibres, thinning of the ligament, a wavy or curved ligament and the presence of an inhomogeneous mass posterolateral to the ACL. We propose that these findings may be indicators of partial ACL tear.
为了明确前交叉韧带（ACL）部分撕裂的磁共振成像（MRI）特征，我们回顾性分析了30例患者的MRI扫描结果，这些患者近期经关节镜检查发现ACL正常、部分撕裂或完全撕裂。复查原始报告发现，MRI正确预测了9/9（100%）的ACL完全撕裂、11/12（92%）的ACL正常，但仅正确预测了1/9（11%）的ACL部分撕裂。通过对MRI的分析，有四个特征有助于将ACL部分撕裂与ACL完全撕裂或正常韧带区分开来。这些特征包括一些完整纤维的出现、韧带变薄、韧带呈波浪状或弯曲以及ACL后外侧存在不均匀肿块。我们认为这些发现可能是ACL部分撕裂的指标。
