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Deep peroneal nerve has a potential risk of injury during open-wedge high tibial osteotomy.
Knee Surgery, Sports Traumatology, Arthroscopy ( IF 3.8 ) Pub Date : 2019-03-05 , DOI: 10.1007/s00167-019-05445-y
Junya Itou 1 , Masafumi Itoh 1 , Chiyomi Maruki 1 , Takahiro Tajimi 1 , Takaaki So 1 , Umito Kuwashima 1 , Ken Okazaki 1
Affiliation  

PURPOSE To assess the risk of injury to the neurovascular bundle on the interosseous membrane of the leg during drilling for distal screw insertion in open-wedge high tibial osteotomy (OWHTO), and to investigate the possible influence of the method of plate placement on the risk. METHODS This retrospective study involved, 55 patients (32 with a TomoFix plate, 23 with a TriS plate) who underwent postoperative CT scanning of the knee following OWHTO between 2009 and 2018. The angle and position of the locking plate, and the direction of screw insertion relative to the interosseous membrane were analysed. RESULTS All distal screws had a risk of neurovascular injury. In particular, 25 screws at the #4 hole (45%) had an extended insertion trajectory that intersected with the interosseous membrane. The angle of the proximal part of the TomoFix plate was a significant risk factor. In contrast, methods of TriS plate placement showed no statistically significant differences. CONCLUSIONS Extended insertion trajectories of distal screws were likely to intersect with the interosseous membrane with the neurovascular bundle potentially on its surface; thus, drilling for bicortical fixation posed a risk of neurovascular injury. The risk increased as the TomoFix plate was placed more medially, suggesting that bicortical drilling must be performed with the utmost attention when the plate is placed at the medial position. Given the particularly high risk at the #3 and #4 screw holes, monocortical fixation of a few distal screws is recommended as long as good stability is ensured.

中文翻译:

楔状深胫骨截骨术中腓深神经有受伤的潜在危险。

目的评估在开放式楔形高位胫骨截骨术(OWHTO)中远端螺钉插入时在钻进过程中腿部骨间膜上神经血管束受伤的风险,并研究钢板放置方法对风险的可能影响。方法这项回顾性研究涉及55例患者(32例使用TomoFix板,23例使用TriS板),他们在OWHTO之后于2009年至2018年接受了膝关节CT术后扫描。锁定板的角度和位置以及螺钉的方向分析了相对于骨间膜的插入情况。结果所有远端螺钉都有神经血管损伤的风险。特别是,在#4孔处有25个螺钉(占45%)的插入轨迹与骨间膜相交。TomoFix板近端的角度是重要的危险因素。相反,TriS板放置的方法没有统计学上的显着差异。结论远端螺钉的延伸插入轨迹可能与骨间膜相交,表面可能有神经血管束。因此,进行双皮质固定的钻探有神经血管损伤的风险。当将TomoFix板放置在更内侧时,风险会增加,这表明当将板放置在内侧位置时,必须格外注意进行双皮质钻孔。鉴于#3和#4螺丝孔的风险特别高,建议使用几个远端螺丝的单皮质固定,只要确保良好的稳定性即可。TriS板放置的方法没有统计学上的显着差异。结论远端螺钉的延伸插入轨迹可能与骨间膜相交,表面可能有神经血管束。因此,进行双皮质固定的钻探有神经血管损伤的风险。当将TomoFix板放置在更内侧时,风险会增加,这表明当将板放置在内侧位置时,必须格外注意进行双皮质钻孔。鉴于#3和#4螺丝孔的风险特别高,建议使用几个远端螺丝的单皮质固定,只要确保良好的稳定性即可。TriS板放置的方法没有统计学上的显着差异。结论远端螺钉的延伸插入轨迹可能与骨间膜相交,表面可能有神经血管束。因此,进行双皮质固定的钻探有神经血管损伤的风险。当将TomoFix板放置在更内侧时,风险会增加,这表明当将板放置在内侧位置时,必须格外注意进行双皮质钻孔。鉴于#3和#4螺丝孔的风险特别高,建议使用几个远端螺丝的单皮质固定,只要确保良好的稳定性即可。结论远端螺钉的延伸插入轨迹可能与骨间膜相交,表面可能有神经血管束。因此,进行双皮质固定的钻探有神经血管损伤的风险。当将TomoFix板放置在更内侧时,风险会增加,这表明当将板放置在内侧位置时,必须格外注意进行双皮质钻孔。鉴于#3和#4螺丝孔的风险特别高,建议使用几个远端螺丝的单皮质固定,只要确保良好的稳定性即可。结论远端螺钉的延伸插入轨迹可能与骨间膜相交,表面可能有神经血管束。因此,进行双皮质固定的钻探有神经血管损伤的风险。当将TomoFix板放置在更内侧时,风险会增加,这表明当将板放置在内侧位置时,必须格外注意进行双皮质钻孔。鉴于#3和#4螺丝孔的风险特别高,建议使用几个远端螺丝的单皮质固定,只要确保良好的稳定性即可。提示当将板置于中间位置时,必须格外注意进行双皮质钻孔。鉴于#3和#4螺丝孔的风险特别高,建议使用几个远端螺丝的单皮质固定,只要确保良好的稳定性即可。提示当将板置于中间位置时,必须格外注意进行双皮质钻孔。鉴于#3和#4螺丝孔的风险特别高,建议使用几个远端螺丝的单皮质固定,只要确保良好的稳定性即可。
更新日期:2020-04-23
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