Department of Trauma and Orthopaedics, Royal London Hospital, London, United Kingdom.
J Orthop Trauma. 2013 Apr;27(4):221-5. doi: 10.1097/BOT.0b013e318271f8f0.
Posterolateral tibial plateau shear fractures often require buttress plating, which can be performed through a posterolateral approach. The purpose of this study was to provide accurate data about the inferior limit of dissection.
Forty unpaired cadaver adult lower limbs were used. The anterior tibial artery was identified because it coursed through the interosseous membrane. The perpendicular distance from the lateral joint line and fibula head to this landmark was measured.
The anterior tibial artery coursed through the interosseous membrane at 46.3 ± 9.0 mm (range 27-62 mm) distal to the lateral tibial plateau and 35.7 ± 9.0 mm (range 17-50 mm) distal to the fibula head.
Displaced posterolateral tibial plateau fractures require anatomic reduction and stabilization with a buttress plate. This can be achieved by gaining access to the posterolateral tibial cortex. The distal limit of this dissection can be as little as 27 mm distal to the lateral tibial plateau. Dissection in this region should be carried out with caution.
后外侧胫骨平台剪切骨折通常需要支撑钢板固定，可通过后外侧入路进行。本研究旨在提供关于解剖下限的准确数据。
使用 40 个未配对的成人下肢尸体。因为胫骨前动脉穿过骨间膜，所以可以识别出它。测量从外侧关节线和腓骨头到该标志的垂直距离。
胫骨前动脉在距外侧胫骨平台后 46.3±9.0mm（范围 27-62mm）和距腓骨头后 35.7±9.0mm（范围 17-50mm）处穿过骨间膜。
移位的后外侧胫骨平台骨折需要用支撑钢板进行解剖复位和稳定。这可以通过获得后外侧胫骨皮质来实现。该解剖的远端界限在距外侧胫骨平台后 27mm 处即可达到。在此区域进行解剖时应谨慎。
