Effect of Discectomy on Dynesys Dynamic Fixation in the Treatment of Lumbar Degenerative Diseases

Table 1

Clinical outcomes.

Group	N	Low back pain			Leg pain			OID (%)
		Pre	Post	FFU	Pre	Post	FFU	Pre	Post	FFU
A	27	3.9 ± 1.3	1.9 ± 0.6	0.9 ± 0.7^‡	5.0 ± 1.0	1.3 ± 0.8^†	0.9 ± 0.7	42.4 ± 14.7	16.7 ± 5.6^§	4.8 ± 3.4^II
B	35	4.2 ± 1.2	2.0 ± 0.7	0.9 ± 0.6^‡	4.9 ± 0.9	1.2 ± 0.8^†	0.9 ± 0.8	48.1 ± 14.8	15.1 ± 5.3^§	5.9 ± 3.0^II
t		−0.76	−0.68	−0.18	0.62	0.48	−0.03	−1.51	1.22	−1.38
p		0.45	0.50	0.86	0.54	0.64	0.98	0.14	0.23	0.17

Pre: preoperative; Post: postoperative; FFU: final follow-up. ^†Repeated ANOVA results showed the VAS scores of low back pain and leg pain in the two groups were statistically different between preoperation and postoperation (). ^‡Repeated ANOVA results showed the VAS scores of low back pain in the two groups were statistically different between postoperation and the final follow-up (). ^§IIRepeated ANOVA results showed the ODI in the two groups was statistically different between preoperation and postoperation and postoperation and the final follow-up ().