[Table/Fig-1]:

Classification of calcaneal articular facets [14,15].

Pattern	Feature	Subtype	Feature
I	Fused (continous) anterior & middle facets Separate posterior facet	IA	Constricted continous facet
		IB	Non-constricted continous facet
II	Separate anterior & middle facets Separate posterior facet	IIA	Degree of separation between anterior & middle facet is < 2mm
		IIB	Degree of separation is between 2-5 mm
		IIC	Degree of separation is between > 5 mm
III	Absence of anterior facet (only middle facet present) Separate posterior facet
IV	Fused anterior, middle & posterior facets
V	Fused middle & posterior facets