中文摘要：

目的：拟基于薄层高精度的中国可视化人体数据（CVH）对膝关节后外侧复合体（PLC）进行断层解剖学与三维可视化研究。方法：选择CVH-1、CVH-2、CVH-5左右膝关节后外侧结构的CVH数据集，对PLC相关结构进行数据分割和三维数字化重建。结果：成功构建了CVH-1、CVH-2、CVH-5左右膝关节的三维模型，并对PLC的结构和毗邻关系进行多方位、多角度的三维可视化观察研究。结果：PLC主要由腓侧副韧带、胭腓韧带、弓状韧带、胭肌肌腱和股二头肌肌腱构成；髂胫束位于膝关节前外侧，位置相距PLC较远，功能与PLC结构存在差异，不属于PLC结构；3例CVH数据集均未见第3关节囊韧带和腓肠豆韧带。结论：推测膝关节手术中对腓侧副韧带、胭腓韧带、弓状韧带、胭肌肌腱进行解剖重建将有助于加强膝关节术后的稳定性。

英文摘要：

Objective： To study sectional anatomy and 3D visualization of posterolateral complex （PLC） of knee joint based on Chinese visible human （CVH） datasets. Methods： PLC datasets of CVH-1, CVH-2 and CVH-5 were selected and then segmentated and reconstructed three-dimensionally. Results： 3D models of CVH-1, CVH-2 and CVH-5＇s knee joint were reconstructed, and the 3D shape and adjacent relationship of PLC from any direction or angle were studied. PLC was mainly composed of the fibular collateral ligament, popliteofibular ligament, arcuate popliteal ligament, popliteus tendon and biceps femoris tendon. Iliotibial was located in the anterolateral part of the knee joint, far away from the PLC and its function was also different from the PLC, and so it did not belong to PLC structure. In these three CVH image datasets, the mid-third lateral capsular ligament and the fabello-fibular ligament were not found. Conclusion： Therefore, we may hypothesize that anatomically reconstructing fibular collateral ligament, popliteofibular ligament, areuate popliteal ligament, popliteus tendon and biceps femoris tendon in knee surgery will help to strengthen the stability of the knee joint after operation.