title: Percutaneous resection of calcaneo-navicular coalition with interposition of synthetic graft.
abstract: BACKGROUND
  Surgical resection of calcaneo-navicular coalition (CNC) with interposition of fat or muscle graft is indicated when there is failure of conservative treatment.
  
  
  OBJECTIVE
  to evaluate the clinical and functional of outcome of a new mini-invasive technique for resection of CNC and interposition of synthetic graft.
  
  
  METHODS
  This is a prospective case series study on 9 patients (12 feet) with symptomatic CNC. Percutaneous resection of the CNC was done using a motorized bone burr through a small incision in the sinus tarsi under image intensifier control. After complete resection a synthetic graft of Teflon or Dacron measuring 15 mm × 30 mm was interposed to prevent re-union of the bone bar.
  
  
  RESULTS
  The mean follow up period was 26.44 months (±1.5 SD). There was statistically significant improvement in the mean total AOFAS score from 47.89 (±8.49 SD) preoperatively to 90.22 (± 5.26 SD) at two years follow up (P<0.05). The mean time to return to full daily activity was 7.44 weeks (±0.88 SD) CONCLUSION: Percutaneous resection of calcaneo-navicular bar with interposition of synthetic graft is an effective mini-invasive method for treatment of calcaneo-navicular coalition with good results in 44.4% of patients and excellent results in 55.6% of patients.
authors.affiliation: Ain Shams University Hospitals, Cairo, Egypt. ossama elshazly@yahoo.com
authors.forename: Ossama
authors.initials: O
authors.lastname: El Shazly
authors.forename: Amr A K H
authors.initials: AA
authors.lastname: Abou El Ela
mesh_terms: D000293:Adolescent; D002111:Calcaneus / Q000002:abnormalities / Q000601:surgery*; D002648:Child; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D011093:Polyethylene Terephthalates; D011138:Polytetrafluoroethylene; D011446:Prospective Studies; D019736:Prostheses and Implants; D016059:Range of Motion, Articular; D020127:Recovery of Function; D013380:Subtalar Joint; D013639:Tarsal Bones / Q000002:abnormalities / Q000601:surgery*; D016896:Treatment Outcome
chemical_list: D011093:Polyethylene Terephthalates; D011138:Polytetrafluoroethylene