Shu Wen, Yu LongJun, Slongo Theddy, Rai Saroj, Zhong Haobo, Tang Xin
Department of Trauma Orthopaedics, Liuzhou People's Hospital, Liuzhou, China.
Department of Orthopaedics, Yangxin People's Hospital, Huangshi, China.
J Child Orthop. 2023 Aug 18;17(5):453-458. doi: 10.1177/18632521231193713. eCollection 2023 Oct.
The elastic stable intramedullary nail has been recognized as an accepted technique for treating pediatric long bone fractures. The principle of the technique is "3-point support and fixation," and it should be followed to achieve the optimum outcome without implant failure and complications. However, tools have yet to be reported for pre-bending of the elastic stable intramedullary nail. This study aims to present a novel tool for pre-bending the elastic stable intramedullary nails and the results of using this tool by surgeons.
A designed case of femoral shaft fracture was provided to the participants. All participants were divided into three groups according to their experience with the elastic stable intramedullary nail technique: resident, fellow, and attending groups. The time of completing the pre-bending and coronal plane deviation of the nails after pre-bending was recorded. Statistical analysis compared the data in a conventional way and with the new tools in each group.
A total of 30 physicians were recruited in this study. The pre-bending duration with the new tool was significantly shorter than that of the conventional method for all physicians ( 0.001). The coronal plane deviation of nails after pre-bending by the new tool was significantly smaller than that of the conventional method for all physicians ( 0.001).
This novel tool for elastic stable intramedullary nail pre-bending was convenient and easy to use in achieving the principal role of the elastic stable intramedullary nail technique. Physicians could reduce the coronal plane deviation when pre-bending elastic stable intramedullary nails, especially for physicians with less experience with the elastic stable intramedullary nail technique.
IV.
弹性稳定髓内钉已被公认为治疗儿童长骨骨折的一种可接受的技术。该技术的原理是“三点支撑与固定”，应遵循此原理以获得最佳效果，避免植入物失败和并发症。然而，尚未有关于弹性稳定髓内钉预弯工具的报道。本研究旨在介绍一种用于弹性稳定髓内钉预弯的新型工具以及外科医生使用该工具的结果。
向参与者提供一个设计好的股骨干骨折病例。所有参与者根据其使用弹性稳定髓内钉技术的经验分为三组：住院医师组、专科住院医师组和主治医师组。记录完成预弯的时间以及预弯后钉子在冠状面的偏差。统计分析以常规方式以及每组中使用新工具的方式比较数据。
本研究共招募了30名医生。对于所有医生而言，使用新工具进行预弯的持续时间明显短于传统方法（<0.001）。对于所有医生而言，使用新工具预弯后钉子在冠状面的偏差明显小于传统方法（<0.001）。
这种用于弹性稳定髓内钉预弯的新型工具在实现弹性稳定髓内钉技术的主要作用方面方便易用。医生在预弯弹性稳定髓内钉时可减少冠状面偏差，尤其是对于弹性稳定髓内钉技术经验较少的医生。
IV级。
