The Evans osteotomy: technique and fixation with cortical bone pin

The use of a lamina spreader over converging pins facilitates opening of an Evans calcaneal osteotomy and allows for precise measurement of the recipient site. The technique of cortical bone pin insertion has been utilized when indicated by the authors a limited number of times (N = 10) and as such this will be the subject of a future scientific investigation. The authors feel the advantages of the cortical bone pins include ease of use, good resultant stability of the capital fragment, utilization of a material identical to that of the correcting graft, a more biologic form of absorbable internal fixation, and the avoidance of complications associated with percutaneous metallic fixation (Fig. 5).