Figure 2From: Bony destructive injuries of the calcaneus: long-term results of a minimally invasive procedure followed by early functional exercise: a retrospective study The instruction of the compression bolts. The compression bolts consist of nuts and screws with a constricted area (A; arrow). The nuts are used to fasten the screws (B). The part of the screw distal to the constricted area is broken off (C).Back to article page