Anterior Cervical Discectomy and Fusion Using Zero-P System for Treatment of Cervical Spondylosis: A Meta-Analysis

Figure 1

(a) Preoperative cervical curvature funnel diagram; (b) postoperative cervical curvature funnel diagram; (c) funnel diagram for interbody fusion rate; (d) preoperative DHI funnel diagram; (e) postoperative DHI funnel diagram; (f) postoperative dysphagia funnel diagram; (g) ALOD funnel diagram; (h) ASD funnel diagram; (i) postoperative sinking rate funnel diagram of fusion cage; (j) screw loosening funnel diagram (IV) evaluation of publication bias.

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