Colletti P, Greenberg H, Terk M R
LAC-USC Imaging Science Center 90033, USA.
Comput Med Imaging Graph. 1996 Sep-Oct;20(5):389-94. doi: 10.1016/s0895-6111(96)00054-7.
The purpose of this study was to demonstrate the MRI findings associated with acute tibial plateau fractures.
MR scans of 29 patients with acute tibial plateau fractures were analyzed retrospectively. The images were evaluated for the presence of injuries involving the menisci, cruciate and collateral ligaments. The presence of a lipohemarthrosis or a simple joint effusion was also noted. The tibial plateau fractures were classified according to the scheme devised by Schatzker.
Evidence of internal derangement of the knee was found in 28 (97%) patients. Tibial collateral ligament (55%) injuries and lateral meniscus (45%) tears were noted most frequently. Medial meniscus tears were seen in 21% and fibular collateral ligament injuries were diagnosed in 34%. Forty-one percent had anterior cruciate ligament injuries while the posterior cruciate ligament was injured in 28%. Twelve (41%) patients demonstrated the characteristic MRI features of a lipohemarthrosis. Simple joint effusions were found in the remaining 17 (59%) patients.
MR imaging in patients with acute tibial plateau fractures commonly demonstrates associated ligamentous and meniscal injuries. By imaging in multiple planes, MRI can aid in the accurate characterization of tibial plateau fracture patterns and severity.
本研究旨在展示与急性胫骨平台骨折相关的MRI表现。
回顾性分析29例急性胫骨平台骨折患者的MR扫描图像。评估图像中半月板、交叉韧带和侧副韧带损伤情况。同时记录是否存在脂肪血性关节积血或单纯关节积液。根据Schatzker制定的方案对胫骨平台骨折进行分类。
28例（97%）患者发现膝关节内部紊乱的证据。最常见的是胫侧副韧带损伤（55%）和外侧半月板撕裂（45%）。内侧半月板撕裂占21%，腓侧副韧带损伤诊断率为34%。41%的患者有前交叉韧带损伤，而后交叉韧带损伤占28%。12例（41%）患者表现出脂肪血性关节积血的典型MRI特征。其余17例（59%）患者发现单纯关节积液。
急性胫骨平台骨折患者的MR成像通常显示相关的韧带和半月板损伤。通过多平面成像，MRI有助于准确描述胫骨平台骨折的类型和严重程度。
