Classification Description Notes
Type 1 Nondisplaced Regardless of the number of fracture fragments
Type 2 Two part fractures A-   Lateral third

B-   Central third

C-   Medial Third

Type 3 Three part fractures Two of the above
Type 4 Highly comminuted


Use coronal image with the widest undersurface of the posterior facet of the talus. Lines A and B separate the calcaneus into medial, central and lateral columns. Line C corresponds to the medial edge of the posterior facet of the talus, separating the sustentaculum from the posterior facet.



Daftary, A., et al. (2005). “Fractures of the Calcaneus: A Review with Emphasis on CT.” Radiographics 25: 1215-1226.


Sanders, R., et al. (1993). “Operative treatment in 120 displaced intraarticular calcaneal fractures. Results using a prognostic computed tomography scan classification.” Clin Orthop Relat Res(290): 87-95.