Modified Blair method for ankle arthrodesis.

In this study, the ordinary Blair's ankle arthrodesis was modified by longitudinal oblique cutting to get the sliding bone graft, up side down grafting, and additional screw fixation at talar site with or without staples fixation of tibia-talar junction. The method of ankle arthrodesis was used on 34 cases from 1987 to 1990 with a 91.2% fusion rate and an average 5.6 months fusion time. The oblique cut bone graft provided larger contact surface to enhance bony fusion and the upside-down bone graft provided stronger tibia-talar bone bridge with thicker cortex for distal screw fixation and the distal screw fixation of bone graft to talus had the advantage of securing union and maintaining position. With such modifications, solid ankle arthrodesis could be obtained even without interarticular compression.