Sanders classification


The Sanders classification is a system of categorizing intra-articular calcaneal fractures based on the number of articular fragments seen on the coronal CT image at the widest point of the posterior facet.

Classification

TypeDescription
INondisplaced posterior facet
IIDisplaced with one fracture line in the posterior facet
IIIDisplaced with two fracture lines in the posterior facet
IVComminuted with more than three fracture lines in the posterior facet