Schmidt J, Kranz C, Dau A
Orthopädische Klinik und Poliklinik, Universität zu Köln.
Z Orthop Ihre Grenzgeb. 1990 Nov-Dec;128(6):675-80. doi: 10.1055/s-2008-1040024.
Osteosynthesis with an angled plate after intertrochanteric osteotomy is mainly a tension-band-osteosynthesis. Because of the lack of interfragmentary compression at the medial corticalis this technique may lead to pseudarthrosis or delayed bone union. On the basis of theoretical considerations and extensive experiments, we found a distinct improvement in interfragmentary compression when the osteotomy-planes are set at an angle of 6 degrees open to the lateral side before external compression with 1000 N. In this way "functional plate-prebending" is achieved. Thus tension-band-osteosynthesis is completed by compression osteosynthesis.
转子间截骨术后使用角度钢板进行骨合成主要是一种张力带骨合成。由于内侧皮质骨处缺乏骨折块间加压，该技术可能导致假关节形成或骨愈合延迟。基于理论考量和广泛实验，我们发现，在以1000 N进行外部加压之前，将截骨平面设置为向外侧开放6度角时，骨折块间加压有显著改善。通过这种方式实现了“功能性钢板预弯”。从而通过加压骨合成完成张力带骨合成。
