股骨髓内磁性延长钉在常规取内固定物时发生断裂：1 例报告
Dissociation of a Femoral Intramedullary Magnetic Lengthening Nail During Routine Hardware Removal: A Case Report.
机构信息
Division of Orthopaedic Surgery, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.
出版信息
JBJS Case Connect. 2021 Mar 8;11(1):01709767-202103000-00046. doi: e20.00950.
CASE
A 15-year-old boy with a right femur length discrepancy secondary to infection underwent hardware removal 1-year status-post right femur osteotomy with placement of an antegrade intramedullary magnetic lengthening nail after successful lengthening of 4.2 cm. During hardware removal, dissociation between the proximal (outer) and distal (inner) components of the device was observed. The distal component was removed using an endoscopic pituitary rongeur after considering multiple possible techniques.
CONCLUSIONS
In the event of nail disconnection during removal of an intramedullary implant, we recommend use of a long pituitary rongeur to retrieve the distal nail component.
病例
一名 15 岁男孩因感染导致右腿股骨长度差异，在成功延长 4.2 厘米后，于右股骨截骨术后 1 年进行了内固定物取出术，同时置入了顺行髓内磁延长钉。在进行内固定物取出术时，观察到器械的近端（外）和远端（内）部件之间出现分离。考虑到多种可能的技术，使用内镜垂体咬骨钳取出了远端部件。
结论
在取出髓内植入物时，如果发生钉断开，我们建议使用长垂体咬骨钳取出远端钉部件。
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