Magnetic intramedullary lengthening nailing has demonstrated benefits over external fixation devices for femoral bone lengthening. These include avoiding uncomfortable external fixation and associated pin site infections, scarring, and inhibition of muscle or joint function. Despite this, little has changed in the field of biologically enhanced bone regeneration. Venting the femoral intramedullary canal at the osteotomy site before reaming creates egress for bone marrow during reaming. The reamings that are extruded from vent holes may function as a prepositioned bone graft at the distraction gap. The relationship between venting and the consolidation of regenerating bone remains unclear.

中文翻译：

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截骨部位排气通过磁性髓内延长钉增强股骨巩固。


磁性髓内延长钉在股骨延长方面优于外固定装置。这些包括避免不舒服的外固定和相关的针部位感染、疤痕以及肌肉或关节功能的抑制。尽管如此，生物增强骨再生领域几乎没有发生任何变化。扩孔前在截骨部位对股骨髓内管进行排气，在扩孔期间为骨髓提供出口。从通气孔挤出的铰孔可以用作牵引间隙处的预先定位的骨移植物。通气与再生骨固结之间的关系仍不清楚。