Is local autogenous morselized bone harvested from decompression through a posterior-transforaminal approach sufficient for single-level interbody fusion in the lower lumbar spine?

Table 3 The comparison between the preoperative plan and actual results of the surgery for 147 patients

	Preoperative plan	Actual result	P value	t value
Restored disc height (mm)	10.81 ± 1.46	10.90 ± 1.43	0.628	−0.485
Graft fusion area (mm²)	423.60 ± 62.77	576.85 ± 105.47	0.000	−15.139
Graft fusion volume (cm³)	4.58 ± 0.95	6.29 ± 1.41	0.000	−12.196

The bone graft area and bone graft volume in the preoperative plan were calculated based on the bone graft area of 30% endplate of the target segment

ISSN: 1471-2474