title: Electromagnetic Navigation in Distal Locking of Long Diaphyseal Interlocking Intramedullary Nailing.
abstract: OBJECTIVE
  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).
  
  
  METHODS
  An interventional study.
  
  
  METHODS
  The Second Affiliated Hospital of Soochow University, China, from March 2013 to July 2014.
  
  
  METHODS
  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.
  
  
  RESULTS
  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).
  
  
  CONCLUSIONS
  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.
authors.affiliation: Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, China.
authors.forename: Zhentao
authors.initials: Z
authors.lastname: Zhou
authors.affiliation: Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, China.
authors.forename: Xiaozhong
authors.initials: X
authors.lastname: Zhou
authors.affiliation: Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, China.
authors.forename: Bingchen
authors.initials: B
authors.lastname: Shan
authors.affiliation: Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, China.
authors.forename: Haibin
authors.initials: H
authors.lastname: Zhou
authors.affiliation: Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, China.
authors.forename: Zhengfeng
authors.initials: Z
authors.lastname: Lu
authors.affiliation: Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, China.
authors.forename: Qirong
authors.initials: Q
authors.lastname: Dong
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001858:Bone Nails; D018483:Diaphyses / Q000601:surgery; D055590:Electromagnetic Phenomena; D005260:Female; D005264:Femoral Fractures / Q000601:surgery*; D005594:Fracture Fixation, Intramedullary / Q000295:instrumentation / Q000379:methods*; D006801:Humans; D016268:Internal Fixators; D008297:Male; D008875:Middle Aged; D061646:Operative Time; D012189:Retrospective Studies; D013978:Tibial Fractures / Q000601:surgery*; D016896:Treatment Outcome