Skip to main content
. 2015 Jan 16;29(1):76–82. doi: 10.7555/JBR.29.20140083

Table 4. VAS scores of the two groups (mean±SD).

Group Preoperative date Postoperative day 3 Postoperative day 7
The open group 8.1 ± 1.0 4.8 ± 1.2a 2.3 ± 1.5b
The mini-open group 8.2 ± 1.1 1.8 ± 1.1a 1.0 ± 0.8b
P 0.66 < 0.001 < 0.001
a

Compared with Preoperative VAS, there were significant differences (P < 0.01);

b

Compared with VAS of three days after surgery, there were significant differences (P < 0.01).