The calcaneus is the largest tarsal bone in the foot and is well designed to withstand the stresses of daily living. The function of the subtalar joint is to accommodate to allow thetalus to be correctly in the mortis facilitating free ankle motion.Every author who has ever written about the calcaneus has his own view of classification.A clear understanding of the pattern of the fracture of the calcaneusis a prerequisite for proper treatment. Such an understanding is usuallypossible using special plain radiographs supplemented by CT scans.The four major lines of treatment are :1- No reduction ± early motion.2- Closed reduction ± fixation.3- Open reduction ± fixation ± Grafting.4- Primary arthrodesis.Non-articular fractures of the calcaneus can be expected to healrapidly fractures include subtalar joint disruption; and severe permanentdisability may follow.