Classification of three-level hybrid surgery for the treatment of cervical degenerative disc disease: a retrospective study of 108 patients

Table 3 Clinical outcomes

	Type I	Type II	ACDF	p value*	p value†
	Type I	Type II	ACDF	p value*	I vs. II	I vs. ACDF	II vs. ACDF
VAS score of neck
Pre-op	5.04 ± 1.32	4.59 ± 1.35	5.13 ± 1.23	0.209	0.127	0.805	0.127
Po-3 m	2.33 ± 0.63	2.62 ± 1.02	2.5 ± 0.72	0.265	0.109	0.388	0.581
Po-6 m	1.98 ± 0.61	2.06 ± 0.65	1.83 ± 0.48	0.370	0.553	0.339	0.161
Po-12 m	1.5 ± 0.84	1.76 ± 0.89	1.42 ± 0.72	0.226	0.161	0.691	0.119
The final	0.87 ± 0.78	1 ± 0.7	0.83 ± 0.64	0.627	0.426	0.842	0.388
VAS score of arms
Pre-op	4.15 ± 1.61	4.41 ± 1.86	4.83 ± 1.09	0.242	0.474	0.093	0.324
Po-3 m	1.87 ± 0.93	1.88 ± 0.81	2 ± 0.78	0.822	0.948	0.548	0.609
Po-6 m	1.26 ± 0.99	1.59 ± 0.92	1.29 ± 0.75	0.262	0.120	0.895	0.231
Po-12 m	1.13 ± 0.96	1.29 ± 0.84	1.08 ± 0.72	0.600	0.406	0.830	0.365
The final	0.87 ± 1.13	0.79 ± 0.64	0.54 ± 0.59	0.334	0.706	0.143	0.286
JOA score
Pre-op	10.17 ± 1.34	10.06 ± 1.13	9.75 ± 0.74	0.348	0.661	0.148	0.319
Po-3 m	14.24 ± 1.14	13.88 ± 1.09	14.04 ± 0.95	0.346	0.149	0.471	0.583
Po-6 m	14.83 ± 1.27	14.76 ± 0.99	15.04 ± 0.95	0.631	0.808	0.445	0.354
Po-12 m	15.39 ± 1.32	15.12 ± 0.98	15.5 ± 0.88	0.393	0.286	0.703	0.207
The final	16.2 ± 1.28	16.24 ± 0.82	16.42 ± 0.78	0.692	0.867	0.401	0.514
NDI
Pre-op	29.67 ± 4.12	28.12 ± 4.37	29.92 ± 4.02	0.173	0.103	0.818	0.110
Po-3 m	15.54 ± 3.66	15.65 ± 3.87	17.79 ± 2.48	0.029	0.896	0.012	0.024
Po-6 m	11.65 ± 3.99	11.59 ± 3.91	12.54 ± 2.5	0.564	0.939	0.339	0.333
Po-12 m	8.3 ± 4.13	9.56 ± 4.26	9.92 ± 2.81	0.187	0.159	0.105	0.732
The final	5 ± 5.91	5.47 ± 3.37	6.29 ± 2.53	0.532	0.649	0.262	0.500

ACDF anterior cervical discectomy and fusion, JOA Japanese Orthopedic Association, NDI neck disability index, VAS visual analog scale
^*ANOVA test
^†SNK test

ISSN: 1471-2482