Table 6.

ROM of vertebrae in the four models (degree)

Model	Vertebrae	Flexion	Extension	Left bending	Right bending	Left rotation	Right rotation
Si-segment
OLIF + BPS	L4	0.32	0.33	0.23	0.24	0.33	0.34
OLIF + LPS	L4	1.83	1.34	0.47	0.45	0.79	0.62
Do-segment
OLIF + BPS	L3	6.03	2.52	4.21	4.21	2.09	2.07
	L4	0.39	0.37	0.23	0.21	0.33	0.31
OLIF + LPS	L3	7.31	3.50	4.38	4.42	2.32	2.43
	L4	2.00	1.38	0.47	0.44	0.57	0.62