title: [Clinical outcome of arthroscopic excision of the os subfibulare in ankle pain].
abstract: OBJECTIVE
  To evaluate the clinical effect of arthroscopic excision of the os subfibulare in anterior-lateral ankle pain.
  
  
  METHODS
  From December 2005 to Augest 2014, 16 patients suffering from pain associated with an os subfibulare in the anterior-lateral side of their ankles were reviewed. Among the patients,11 patients were male and 5 were female, with a mean age of (33.5 ± 15.6) years old. The mean maximum diameter of os subfibulare was (0.70 ± 0.26) cm. All the patients underwent excision of the osseous fragments, and had anatomic reconstruction of the anterior talofibular ligament if the anterior-lateral ankle was instable. The average follow-up period was (18.0 ± 4.5) months. To analyze the surgical outcome, American Orthopaedic Foot and Ankle Society (AOFAS) ankle-hindfoot pain and function scales,visual analogue scale (VAS) and Tegner activity scale were assessed preoperatively and postoperatively.
  
  
  RESULTS
  AOFAS scales were preoperative 60.15 ± 14.52 and postoperative 92.35 ± 5.73. There was a significant difference between them (t = -8.251, P = 0.000). The mean VAS score were preoperative 7.35 ± 0.46 and postoperative 2.45 ± 0.98. Statistical significance was also notable (t = 18.105, P = 0.000). Tegner score was significantly increased from preoperative 2.87 ± 1.12 to postoperative 5.78 ± 1.06 (t= -7.548, P = 0.000).
  
  
  CONCLUSIONS
  Irrespective of the size of os subfibulare, in patients with pain or instability associated with the os subfibulare, arthroscopic excision combined with reconstruction of ther anterior talofibular ligament or not was effective in restoring ankle function and eliminating pain.
authors.forename: Chang
authors.initials: C
authors.lastname: Liu
authors.forename: Hai-sen
authors.initials: HS
authors.lastname: Zhang
authors.forename: Bao-jing
authors.initials: BJ
authors.lastname: Pei
authors.forename: Huai-liang
authors.initials: HL
authors.lastname: Wang
authors.forename: Hang
authors.initials: H
authors.lastname: Su
authors.forename: Qing-hai
authors.initials: QH
authors.lastname: Wang
mesh_terms: D000328:Adult; D016512:Ankle Injuries / Q000601:surgery*; D000843:Ankle Joint / Q000601:surgery; D001182:Arthroscopy / Q000379:methods*; D005260:Female; D005360:Fibula / Q000601:surgery*; D006801:Humans; D017844:Lateral Ligament, Ankle / Q000601:surgery; D008297:Male; D008875:Middle Aged