Clinical effect of a novel transpedicular reducer for reduction and bone grafting combined with pedicle screw fixation for thoracolumbar burst fractures

Table 3 The anterior and middle heights, AVBHr, MVBHr and the Cobb angle of injured vertebrae pre- and post-operatively in the two groups

	Before the operation		Grobservation/Grcontrol P-value	After reduction		Grobservation/Grcontrol P-value	3 days after the operation		Grobservation/Grcontrol P-value	3 months after the operation		Grobservation/Grcontrol P-value	12 months after the operation		Grobservation/Grcontrol P-value
	observation group	control group	Grobservation/Grcontrol P-value	observation group	control group	Grobservation/Grcontrol P-value	observation group	control group	Grobservation/Grcontrol P-value	observation group	control group	Grobservation/Grcontrol P-value	observation group	control group	Grobservation/Grcontrol P-value
anterior height (mm)	20.56 ± 3.74	20.70 ± 4.57	0.799	29.53 ± 2.53	28.32 ± 3.18	0.023*	29.88 ± 2.52	28.5 ± 5.09	0.019*	28.36 ± 1.93	27.03 ± 1.43	0.018*	27.96 ± 0.72	23.7 ± 0.66	0.001*
middle height (mm)	20.36 ± 4.20	19.36 ± 3.06	0.934	27.54 ± 1.00	26.43 ± 2.03	0.028*	27.70 ± 2.01	26.56 ± 4.56	0.021*	27.05 ± 2.45	24.12 ± 3.23	0.002*	26.83 ± 2.45	22.45 ± 2.57	0.001*
AVBH(%)	63.09 ± 8.91	63.76 ± 4.68	0.908	97.22 ± 7.38	93.31 ± 2.75	0.001*	97.54 ± 5.08	93.06 ± 3.57	0.001*	96.46 ± 3.87	85.64 ± 3.23	0.000*	94.89 ± 4.21	82.77 ± 4.97	0.000*
HVBHr(%)	68.97 ± 8.43	64.91 ± 4.84	0.059	97.34 ± 4.85	89.15 ± 3.57	0.000*	97.40 ± 6.11	89.13 ± 4.5	0.000*	96.05 ± 5.21	77.95 ± 5.67	0.000*	93.11 ± 3.22	74.8 ± 3.68	0.000*
Cobb angle(°)	11.80 ± 1.44	11.84 ± 1.78	0.693	2.46 ± 1.00	3.59 ± 1.03	0.002*	2.72 ± 0.70	3.65 ± 0.69	0.001*	3.03 ± 0.65	4.68 ± 0.23	0.001*	4.34 ± 0.56	7.89 ± 1.24	0.000*

ISSN: 1471-2474