The paired t test of pre- and post PVP on VAS scale, mobility and analgesic usage scale showed that there were a significant difference (all P<0. 05).
疼痛视觉类比评分评分、活动能力和止痛药应用评分术前、样后比较均有显著性差异（P<0.05）。
Visual analogue scale (VAS) scores were used to assess the pain degree of patients in the two groups.
采用疼痛视觉模拟评分法(VAS)评分对两组患者的疼痛程度进行效果评价。
Pain was evaluated using a visual analogue scale (VAS) where 0 was no pain and 10 was unbearable pain.
疼痛评估使用视觉模拟评分(管)在0没有痛苦和10疼痛难忍。
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