title: [Treatment of calcaneal avulsion fractures with twinfix suture anchors fixation].
abstract: OBJECTIVE
  For the calcaneal avulsion fracture, the current method is more commonly used screws or Kirschner wire to fix fracture fragment. This article intended to explore the feasibility and clinical efficacy for the treatment of avulsion fractures with TwinFix suture anchors.
  
  
  METHODS
  From July 2007 to November 2010, 21 patients were reviewed, including 15 males and 6 females, ranging in age from 49 to 65 years,with a mean of 58.7 years. Twelve patients had nodules in the right heel and 9 patients had nodules in the left heel. All the patients had closed fractures. The typical preoperative symptoms of the patients included pain in the upper heel and weak in heel lift. Body examination results: palpable sense of bone rubbing in the back of the heel, and swelling in the heel. Surgery treatment with TwinFix suture anchors performed as follows : to fix TwinFix suture anchors into the calcaneal body, then to drill the fracture block, to make the double strand suture through the fracture holes, to knot the suture eachother to fix the block, and to use stitch to fix the remaining suture in the Achilles tendon in order to improve the block fixation. The criteria of the AOFAS Foot and Ankle Surgery by the United States Association of ankle-rear foot functional recovery was used to evaluate the Achilles tendon.
  
  
  RESULTS
  Total average score was (95.5 +/- 3.12) points, including pain items of(38.5 +/- 2.18) points,the average score of functional items of (49.5 +/- 3.09) points,and power lines of 10 points in all patients. Twenty-one patients got an excellent result, 16 good and 5 poor.
  
  
  CONCLUSIONS
  The methods of treatment for the calcaneal avulsion fractures with TwinFix suture anchors is a simple operation, and have excellent clinical effect, which is worthy of promotion.
authors.affiliation: The 9th District of Orthopaedics Department, the First Hospital of Huaian Affiliated to Nanjing University of Medicine, Jiangsu, China. sdzbx@126.com
authors.forename: Bin-xiu
authors.initials: BX
authors.lastname: Zhao
authors.forename: Kun-zheng
authors.initials: KZ
authors.lastname: Wang
authors.forename: Chun-sheng
authors.initials: CS
authors.lastname: Wang
authors.forename: Yue
authors.initials: Y
authors.lastname: Xie
authors.forename: Zhi-tang
authors.initials: ZT
authors.lastname: Dai
authors.forename: Gang
authors.initials: G
authors.lastname: Liu
authors.forename: Wei-dong
authors.initials: WD
authors.lastname: Liu
mesh_terms: D000368:Aged; D002111:Calcaneus / Q000293:injuries* / Q000601:surgery; D005260:Female; D005593:Fracture Fixation, Internal / Q000295:instrumentation / Q000379:methods*; D050723:Fractures, Bone / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D053441:Suture Anchors