Pellegrini et al. technique for conversion of tibiotalar arthrodesis to total ankle arthroplasty (see text). Preparation of the anterior chamfer. A, Osteophytes removed from talar neck. B, Smoothing anterior chamfer. C, Anterior talar body prepared for anterior chamfer guide. D, Guide positioning. E, Anterior chamfer preparation. F, Note lateral talar defect from hardware placed during ankle arthrodesis. G, Defect requiring graft. SEE TECHNIQUE 10.5.