TABLE 1.

Cellular Contribution to Fusion–Posterolateral Fusion Rates (Unilateral)

Autograft Condition	Fusion by MP; N/n (%)	Fusion by Radiography; N/n (%)	Fusion by μCT; N/n (%)
Viable	7/12 (58)†	8/12 (67)*	7/12 (58)†
Partially devitalized	12/14 (86)†	14/14 (100)†	14/14(100)†
Devitalized	0/16 (0)	3/16 (19)	0/16 (0)

Statistical significance versus devitalized autograft denoted by:

^* P < 0.05.

^† P < 0.001.

μCT indicates microcomputed tomography; MP, manual palpation.