Unfortunately, the original version of this article [1] contained an error. There is an error in Fig. 2 of this article. It has been labelled incorrectly and the groups were inverted. The correct figure with correct labels has been included here.

Fig. 2
figure 1

Pre- and postoperative values of C-reactive protein (CRP) in the two groups. *P < 0.05 versus preoperative. P < 0.05 versus Control group