Table 4.

The correlation between the low-back pain score section of the JOA score at the final follow-up and the results of the 3 evaluation methods: flexion–extension radiographs, flexion CT and extension CT

	Fusion	Pseudoarthrodesis	P
Flexion–extension radiographs	2.56 ± 0.73	2.45 ± 0.82	0.66
Flexion CT	2.57 ± 0.73	2.43 ± 0.76	0.51
Extension CT	2.63 ± 0.70	2.30 ± 0.80	0.08