From: Intraoperative blood loss during different stages of scoliosis surgery: A prospective study
 |  | Dissection | Screw insertion | Correction | Bone grafting | Total | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Group | Levels | Time | p value | Time | p value | Time | p value | Time | p value | Time | p value | |||||
AIS | 12.1 | 4 | 0.507§ | 0.475* | 5.6 | 0.761§ | 0.916* | 2.3 | 0.097§ | 0.142* | 1.8 | 0.609§ | 0.674* | 13.6 | 0.75§ | 0.734* |
CP | 15 | 4.5 | Â | 0.841# | 5.3 | Â | 0.942# | 2.9 | Â | 0.998# | 1.6 | Â | 0.648# | 14.4 | Â | 0.955# |
Paralytic | 15.6 | 4.2 |  | 0.808α | 5.7 |  | 0.741α | 2.3 |  | 0.15α | 1.6 |  | 0.999α | 13.9 |  | 0.885α |