Zhou Zhentao, Zhou Xiaozhong, Shan Bingchen, Zhou Haibin, Lu Zhengfeng, Dong Qirong
Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, China.
J Coll Physicians Surg Pak. 2016 Dec;26(12):975-979.
To describe the applications and effects of electromagnetic navigation (EN) technology in distal locking for the treatment of long diaphyseal fracture (LDF) with interlocking intramedullary nailing (IIN).
An interventional study.
The Second Affiliated Hospital of Soochow University, China, from March 2013 to July 2014.
Patients who underwent IIN-LDF were selected. Twenty-four (50%) of whom were operated under EN guidance (group A) and the other 24 (50%) under conventional targeting guidance (group B). The distal locking time and X-ray irradiation time of the two groups were compared.
Each group included 16 (33.3%) cases of femoral fracture and 8 (16.7%) cases of tibial fracture. The success rate of distal locking in group A was higher than that in group B (95.8% vs. 83.3%, p=0.045). There were statistically significant differences in the distal locking time and X-ray irradiation time of femoral intramedullary nailing between the two groups (p=0.027 and p=0.001, respectively). There were no statistically significant differences in the distal locking time and X-ray irradiation time of tibial intramedullary nailing between the two groups (p=0.347 and p=0.056, respectively).
EN-IN was advantageous as it enabled easy targeting, significantly reduced intraoperative fluoroscopy and operation time and small trauma and had other advantages when used for treating LDFs, especially femoral diaphyseal fractures.
描述电磁导航（EN）技术在交锁髓内钉（IIN）治疗长骨干骨折（LDF）远端锁定中的应用及效果。
一项干预性研究。
2013年3月至2014年7月在中国苏州大学附属第二医院。
选取接受IIN-LDF治疗的患者。其中24例（50%）在EN引导下手术（A组），另外24例（50%）在传统瞄准引导下手术（B组）。比较两组的远端锁定时间及X线照射时间。
每组包括16例（33.3%）股骨骨折和8例（16.7%）胫骨骨折。A组远端锁定成功率高于B组（95.8%对83.3%，p = 0.045）。两组股骨髓内钉远端锁定时间及X线照射时间有统计学显著差异（分别为p = 0.027和p = ．001）。两组胫骨髓内钉远端锁定时间及X线照射时间无统计学显著差异（分别为p = 0.347和p = 0.056）。
EN-IIN具有优势，它便于瞄准，显著减少术中透视及手术时间，创伤小，用于治疗LDFs尤其是股骨干骨折时还有其他优点。
