Revision Surgery for Symptomatic Adjacent Segment Disc Degeneration after Initial Anterior Cervical Fusion: Is ROI-C Better than Plate-Cage Construct?

Table 3

The results of clinical evaluations.

	ROI-C group ()	Plate-cage group ()	value
NDI scores
Preoperative			0.88
1 month after surgery			0.62
Last follow-up			0.39
JOA scores
Preoperative			0.37
1 month after surgery			0.30
Last follow-up			0.45
JOA score recovery rate			0.66
Excellent	3	8
Good	12	16
Fair	1	2
Poor	0	0
Dysphagia rate	3/16	15/26	0.01

Abbreviations: NDI: neck disability index; JOA: Japanese Orthopaedic Association. Statistical significance achieved compared between groups ().