Fig. 6.

Bone-disc-bone osteotomy. a) Spine from the lateral view. Upper end-plate of T10 and lower end-plate of T9 were included in the area to be resected. Resection should also include the disc space. Closure of the osteotomy allows bone-to-bone contact and direct bone healing. b) Spine from the posterior view. Lower facets and spinous process of the upper vertebra and upper facets of the lower vertebra should be removed to gain access to the area to be resected. SP, spinous process; L, lamina; IF, inferior facet; SF, superior facet; PIC, postero-inferior corner; PSC, posterosuperior corner; D, disc.