title: Radiographic evaluation of calcaneal fractures: to measure or not to measure.
abstract: OBJECTIVE
  The aim of this study was to correlate the functional outcome after treatment for displaced intra-articular calcaneal fracture with plain radiography.
  
  
  METHODS
  The design was a prognostic study of a retrospective cohort with concurrent follow-up.
  
  
  METHODS
  A total of 33 patients with a unilateral calcaneal fracture and a minimum follow-up of 13 months participated. Patients filled in three disease-specific questionnaires, graded their satisfaction and the indication for an arthrodesis was noted. Standardised radiographs were made of the previously injured side and the normal (control) side. Different angles and distances were measured on these radiographs and compared with values described in the literature. The differences in values in angles and distances between the injured and uninjured (control) foot were correlated with the outcome of the questionnaires, and the indication for an arthrodesis.
  
  
  RESULTS
  None of the angles correlated with the disease-specific outcome scores. Of the angles only the tibiotalar angle correlated with the VAS (r = 0.35, p = 0.045) and only the absolute foot height correlated with the indication for an arthrodesis (odds = 0.70, CI = 0.50-0.99).
  
  
  CONCLUSIONS
  In this study the radiographic evaluation correlated poorly with the final outcome. Measurements on plain radiographs seem not to be useful in determining outcome after intra-articular calcaneal fractures.
authors.affiliation: Department of General Surgery-Traumatology, Erasmus MC, University Medical Centre Rotterdam, Room H-974, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands. t.schepers@erasmusmc.nl
authors.forename: T
authors.initials: T
authors.lastname: Schepers
authors.forename: A Z
authors.initials: AZ
authors.lastname: Ginai
authors.forename: P G H
authors.initials: PG
authors.lastname: Mulder
authors.forename: P
authors.initials: P
authors.lastname: Patka
mesh_terms: D000293:Adolescent; D000328:Adult; D017668:Age of Onset; D000368:Aged; D002111:Calcaneus / Q000000981:diagnostic imaging / Q000293:injuries*; D005260:Female; D005500:Follow-Up Studies; D050723:Fractures, Bone / Q000000981:diagnostic imaging* / Q000628:therapy; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D012189:Retrospective Studies; D011795:Surveys and Questionnaires; D016896:Treatment Outcome