查看更多>>摘要：Schatzkter type-Ⅰ tibial plateau fracture is a split fracture of the lateral tibial plateau in sagittal plane,consequent to valgus impaction caused by low velocity of trauma.However,a deep understanding of the different columns of the tibial plateau and patho-mechanisms of the injury led to the unmasking of atypical fractures around the tibial plateau.We have encountered 2 cases with unusual fracture pattern of the lateral tibial condyle caused by road traffic accidents.The fracture pattern and severity of injury deviate from the original description of Schatzker type 1;in view of dual plane split,there is rotation of the posterolateral column fragment along its sagittal plane plus grade-Ⅲ medial collateral ligament injury.The patients were initially treated with knee spanning external fixator and after a latency of 5 days,definitive fracture specific fixation was done,combined with repair of grade-Ⅲ medial collateral ligament injury.At the 6 months follow-up both the patients achieved satisfactory knee functions (knee society score case 1:100 and case 2:92) and returned to their jobs.The severity of fracture pattern and displacement as described should prompt for examination of associated ligament injury.Because of timely diagnosis,early and appropriate care promised an excellent function outcome even in such a severe nature of knee injury.To prompt the description of injury pattern we coined the name "dual split and dislocation" of lateral tibial plateau,as a complex injury variant of split fracture of lateral tibial plateau fracture.
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