title: Use of a magnetic bone nail for lengthening of the femur and tibia.
abstract: To report our experience with the PRECICE nail for limb lengthening in 23 patients.
  
  
  
  Records of 15 female and 8 male patients aged 14 to 38 (mean, 23.6) years who underwent lengthening of the tibia (n=6) or femur (n=21) using the PRECICE nail were reviewed. The reasons for lengthening included trauma (n=7), hemihypertrophy (n=2), focal femoral deficiency (n=2), Ellis-van Creveld syndrome (n=1), hip septic arthritis sequelae (n=1), hereditary multiple exostosis (n=1), club foot sequela (n=1), congenital tibial pseudoarthrosis (n=1), fibrous dysplasia (n=1), idiopathic limb length discrepancy (n=7), and cosmetic (n=1).
  
  
  
  The mean follow-up duration was 20.72 months. The mean lengthening was 48.20 mm, and the mean acute angular correction was 15.5º. The mean time to full weight-bearing was 5.15 months, and the mean consolidation index was 1.12 months/cm. The mean maturation index was 0.78 months/cm. One patient had nail breakage during the consolidation phase. The nail was replaced by an intramedullary nail until consolidation, after which another PRECICE nail was used to treat the residual shortening. Eight patients had over-lengthening and the nails were driven back to the desired length. No patient had infection.
  
  
  
  The PRECICE nail is a viable option for lengthening of the femur and tibia.
authors.affiliation: Department of Orthopedics and Traumatology, Namık Kemal University, Tekirdag, Turkey.
authors.forename: Ozgur
authors.initials: O
authors.lastname: Karakoyun
authors.affiliation: Department of Orthopedics and Traumatology, Metin Sabanci Baltalimani Osteopathic Training and Research Hospital, Istanbul, Turkey.
authors.forename: Sami
authors.initials: S
authors.lastname: Sokucu
authors.affiliation: Department of Orthopedics and Traumatology, Namık Kemal University, Tekirdag, Turkey.
authors.forename: Mehmet Fatih
authors.initials: MF
authors.lastname: Erol
authors.affiliation: Department of Orthopedics and Traumatology, Istanbul Bilim University, Istanbul, Turkey.
authors.forename: Metin
authors.initials: M
authors.lastname: Kucukkaya
authors.affiliation: Department of Orthopedics and Traumatology, Metin Sabanci Baltalimani Osteopathic Training and Research Hospital, Istanbul, Turkey.
authors.forename: Yavuz Selim
authors.initials: YS
authors.lastname: Kabukçuoğlu
mesh_terms: D000293:Adolescent; D000328:Adult; D001852:Bone Lengthening / Q000295:instrumentation*; D001858:Bone Nails; D005260:Female; D005269:Femur / Q000601:surgery*; D006801:Humans; D007870:Leg Length Inequality / Q000000981:diagnostic imaging / Q000209:etiology / Q000601:surgery*; D008297:Male; D012189:Retrospective Studies; D013977:Tibia / Q000601:surgery*; D016896:Treatment Outcome; D016474:Weight-Bearing; D055815:Young Adult
keywords: bone lengthening; bone nails; leg length inequality