title: Headless compression screw fixation of jones fractures: an outcomes study in Japanese athletes.
abstract: BACKGROUND
  Internal fixation is advocated as the primary treatment for fifth metatarsal Jones fractures in athletes; however, screw insertion site discomfort and refracture can occur especially in competitive athletes. The ideal implant has not been determined.
  
  
  OBJECTIVE
  Headless compression screw fixation of proximal fifth metatarsal Jones fractures is an effective treatment approach especially in competitive athletes.
  
  
  METHODS
  Case series; Evidence level, 4.
  
  
  METHODS
  We studied 60 athletes treated surgically with a headless compression screw for fifth metatarsal Jones fractures (mean age, 19 years). The mean follow-up time was 178 weeks. We evaluated the clinical and radiographic outcomes of headless compression screw fixation of Jones fractures.
  
  
  RESULTS
  All athletes returned to full activity. The mean time to start running after surgery was 6.3 weeks (range, 3-12.7 weeks), and the mean time to full activity after surgery was 11.2 weeks (range, 6-25 weeks). One athlete suffered a delayed union, which healed uneventfully. One athlete suffered a nonunion and underwent reoperation for a screw exchange to an autogenous bone graft harvested from the iliac crest. No screw breakage was reported. No athlete suffered a refracture or discomfort in the screw insertion site.
  
  
  CONCLUSIONS
  Headless compression screw fixation of fifth metatarsal Jones fractures provided excellent results, allowing athletes to return to full activity without both screw insertion site irritation and clinical refracture.
authors.affiliation: Department of Orthopedic Surgery, Juntendo University Nerima Hospital, Tokyo, Japan. nagao@juntendo.ac.jp
authors.forename: Masashi
authors.initials: M
authors.lastname: Nagao
authors.forename: Yoshitomo
authors.initials: Y
authors.lastname: Saita
authors.forename: So
authors.initials: S
authors.lastname: Kameda
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Seto
authors.forename: Ryo
authors.initials: R
authors.lastname: Sadatsuki
authors.forename: Yuji
authors.initials: Y
authors.lastname: Takazawa
authors.forename: Masafumi
authors.initials: M
authors.lastname: Yoshimura
authors.forename: Yukihiro
authors.initials: Y
authors.lastname: Aoba
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Ikeda
authors.forename: Kazuo
authors.initials: K
authors.lastname: Kaneko
authors.forename: Masahiko
authors.initials: M
authors.lastname: Nozawa
authors.forename: Sung-Gon
authors.initials: SG
authors.lastname: Kim
mesh_terms: D000293:Adolescent; D000328:Adult; D001265:Athletic Injuries / Q000601:surgery*; D001863:Bone Screws; D005260:Female; D005593:Fracture Fixation, Internal / Q000295:instrumentation*; D050723:Fractures, Bone / Q000601:surgery*; D006801:Humans; D007564:Japan; D008297:Male; D008682:Metatarsal Bones / Q000293:injuries / Q000601:surgery*; D020127:Recovery of Function; D016896:Treatment Outcome; D055815:Young Adult