Table 1.

Radiographic grading scale for the degree of healing

No change from immediate postoperative appearance	0
A slight increase in radiodensity distinguishable from the graft	1
Recognizable increase in radiodensity, bridging of one cortex with new-bone formation to the graft	2
Bridging of at least one cortex with material of nonuniform radiodensity, early incorporation of the graft suggested by obscurity of graft borders	3
Defect bridged on both medial and lateral sides with bone of uniform radiodensity, cut ends of the cortex still visible, graft and new bone not easy to differentiate	4
Same as grade 3, with at least one of four cortices obscured by new bone	5
Defect bridged by uniform new bone, cut ends of cortex no longer distinguishable, graft no longer visible	6