Fig. 3.

a The planned wedge resection of the vertebral body is performed using a high-speed burr and sharp curettes. It is important that a thin shell of posterior cortex of the fusion mass is maintained till the very end so that it forms a natural protection to the cord. b Do not start burring at the apex of the deformity. If decompression is started from the posterior part of the fusion mass, there will be continuous bleeding from the epidural veins and the cord also is prone for injury as it descends down and comes into contact with the working instruments