Table 1.

Modified bone healing score for the healing of autogenous bone graft between two vertebral endplates derived from Perry et al. [27].

Score	Fibrous Tissue	Cartilage Tissue	Immature (Woven) Bone	Mature (Lamellar) Bone
1	100%	/	/	/
2	>50%	<50%	/	/
3	50%	50%	/	/
4	/	100%	/	/
5	/	>50%	<50%	/
6	/	50%	50%	/
7	/	<5%	>95%	/
8	/	/	100%	/
9	/	/	>50%	<50%
10	/	/	/	100%