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Three-column Subdivision for Isolated Posterolateral Tibial Plateau Fractures and Perspective Surgical Approachs
0
Zitationen
4
Autoren
2020
Jahr
Abstract
Abstract Background: Management of the tibial plateau fracture involving posterolateral compartment is technically challenging. This study aimed to introduce a computed tomography-based classification of the posterolateral compartment of tibial plateaus based on the fibula and to propose the individualized surgical approaches for each zone; and 2) to determine the surgical approach based on the classification, would achieve a safe and effective reduction and can improve postoperative clinical outcomes. Methods: Eighteen cases of tibia plateau fracture involved the isolated posterolateral compartment in a single institution were retrospectively analyzed. The posterolateral compartment of tibial plateau was segmented into three zones based on the fibular position and individualized surgical approach was proposed for each zone. In anterior Zone I, surgical treatment was performed using an extended anterolateral approach and patient was placed in the supine position; In middle Zone II, using the transfibular approach in the supine position; In posterior Zone III, using the posteromedial approach in prone. Articular reduction (intra-articular step off in CT images) and mechanical medial proximal tibial angle (mMPTA) in simple radiographs taken in the immediate postoperative period and clinical outcomes of the Lysholm knee scoring scale and range of motion were evaluated at postoperative 1-year follow-up, Results: In all cases, anatomical articular reduction (intra-articular step off < 2mm) was achieved, maintained for the follow-up period. The average mMPTA was increased from 87.6º before surgery to 88.2º in immediate postoperative period (p = 0.060), and maintained for the follow-up period (mean 89.9º at one-year follow-up). At the 1-year follow-up, the knee range of motion averaged 140 degrees and the Lysholm knee function scored 95.0 points. Conclusion: An individualized surgical approach and fixation according to three-zone subdivision for isolated posterolateral tibial plateau fractures provided an effective and safe method to treat posterolateral tibial plateau fractures. Level of evidence : Therapeutic study, IV
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