title: Prognostic value of four classifications of calcaneal fractures.
abstract: BACKGROUND
  The purpose of this study was to assist surgeons treating calcaneal fractures in choosing the most predictive fracture classification and clinical outcome tool.
  
  
  METHODS
  For 152 patients (189 calcaneal fractures; average followup, 9.9 years), all fractures were classified in accordance with the Essex-Lopresti, OTA, Regazzoni, and Sanders classifications and matched with the following scores: AOFAS score, CNHF, FOA, MFS, Rowe, MFA, SF-36, and VAS.
  
  
  RESULTS
  The Essex-Lopresti classification showed no statistically significant relation with any of the clinical scores (p > 0.05). The OTA classification related statistically significant with the MFS (p = 0.006), AOFAS score (p = 0.013), FOA (p = 0.019), Rowe (p = 0.0027), and MFA score (p = 0.03). The Regazzoni classification correlated with the AOFAS score (p = 0.003), MFS (p = 0.002), Rowe (p = 0.002), CNHF (p = 0.0001), FOA (p = 0.003), MFA score (p = 0.002), and VAS (p = 0.005). The Sanders classification corrrelated with the AOFAS score (p = 0.007), MFS (p = 0.001), Rowe (p = 0.001), CNHF (p = 0.024), FOA (p = 0.021), MFA score (p = 0.036), and VAS (p = 0.014).
  
  
  CONCLUSIONS
  Compared to radiological based classifications, the CT based classifications, especially the Regazzoni and Sanders classifications, exhibited higher prognostic value compared to ultimate outcome scores.
authors.affiliation: Orthopedic Traumatologic Department, University Hospital of Basel, 4031 Basel, Switzerland.
authors.forename: Raffaele
authors.initials: R
authors.lastname: Rubino
authors.forename: Victor
authors.initials: V
authors.lastname: Valderrabano
authors.forename: Paul Martin
authors.initials: PM
authors.lastname: Sutter
authors.forename: Pietro
authors.initials: P
authors.lastname: Regazzoni