Zaidi S H, Cobb A G, Bentley G
Institute of Orthopaedics, Royal National Orthopaedic Hospital NHS Trust, Stanmore, Middlesex, UK.
J Bone Joint Surg Br. 1995 May;77(3):384-6.
We report a case in which the popliteal artery was divided during upper tibial osteotomy performed with the knee in 90 degrees of flexion. This position is believed to allow it to fall safely back from the tibia, but we could find no published confirmation. We used duplex ultrasonography in ten healthy volunteers to measure the distance from the popliteal artery to the posterior surface of the tibia at various degrees of flexion of the knee. Our results showed that in 12 of 20 knees the popliteal artery was closer to the tibia in 90 degrees of knee flexion than in full extension. Surgeons performing upper tibial osteotomy should be aware that flexing the knee does not protect the popliteal artery from injury.
我们报告了一例在膝关节屈曲90度行胫骨上段截骨术时腘动脉被切断的病例。人们认为这个位置能使腘动脉安全地从胫骨后方退回，但我们未找到已发表的相关证实。我们对10名健康志愿者使用双功超声来测量在膝关节不同屈曲度时腘动脉到胫骨后表面的距离。我们的结果显示，在20个膝关节中有12个，膝关节屈曲90度时腘动脉比完全伸直时更靠近胫骨。进行胫骨上段截骨术的外科医生应意识到，屈曲膝关节并不能保护腘动脉免受损伤。
