Table 1 Therapeutic effect evaluation by VSS
Therapeutic effect (n, %) | Scores | |||||||
|---|---|---|---|---|---|---|---|---|
Good | Fair | Poor | Effective rate | Mean of Preoperative VSS | Mean of Postoperative VSS (at 2 y) | Z(Wilcoxon Matched-Pairs rank-sum test) | P | |
82 (72.57) | 21 (18.58) | 10 (8.85) | 91.15 | 10.81 | 4.02 | − 9.068 | < 0.001 | |