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Difficulties in removal of the titanium locking plate in Japan.

机译：在日本，拆卸钛锁板的困难。

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This study was designed to evaluate the frequency of intraoperative complications associated with titanium locking compression plate (LCP) removal.Retrospective study.Medical records were reviewed for surgical technique, plate types used, position and number of screws, time from internal fixation to plate removal, and intraoperative complications. Radiographs were reviewed to evaluate the position of the plates and screws and the accuracy of the screw direction. Mann-Whitney and Yates Chi-square tests were calculated with the level of significance at P < 0.05.All LCPs could be removed. Of the 342 locking head screws (LHSs), a total of 21 (6.1%) screws, 3 (2.0%) 5.0 mm screws (3/153) and 18 (10.7%) 3.5 mm screws (18/169), were difficult to remove. The frequency of difficulty associated with the 3.5 mm LHSs was significantly higher than that of the 5.0 mm LHSs (P < 0.01). The frequency of difficulty associated with the removal of LHSs at the diaphysis was higher than that of LHSs at the epiphysis (P < 0.01), especially with 3.5 mm LHSs. The mean age was significantly lower in the patients in whom removal was difficult (P < 0.05). Our analysis revealed that the frequency of removal difficulty was high when a 3.5 mm LHS was inserted into the diaphysis of young patients.We should recognize that the removal of LCPs can involve numerous problems and great care should be exercised, especially in cases involving 3.5 mm LHSs.
机译：这项研究旨在评估与钛锁定加压钢板（LCP）移除相关的术中并发症的发生率。回顾性研究。对医学记录进行回顾，包括手术技术，所用钢板的类型，螺钉的位置和数量，从内固定到移除钢板的时间。 ，以及术中并发症。审查X射线照片以评估板和螺钉的位置以及螺钉方向的准确性。计算Mann-Whitney和Yates卡方检验，显着性水平为P <0.05。可以删除所有LCP。在342个锁紧头螺钉（LHS）中，总共有21个（6.1％）螺钉，3个（2.0％）5.0毫米螺钉（3/153）和18个（10.7％）3.5毫米螺钉（18/169）很困难去除。与3.5 mm LHS相关的难度频率明显高于5.0 mm LHS（P <0.01）。去除骨干处的LHS的困难频率高于骨the处的LHS（P <0.01），尤其是3.5 mm LHS。难以切除的患者的平均年龄显着降低（P <0.05）。我们的分析表明，将3.5 mm LHS插入年轻患者的骨干时，去除困难的频率很高。我们应该认识到，LCP的去除可能涉及许多问题，应格外小心，尤其是在3.5 mm的情况下LHS。

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