Background
Materials and methods
Results
Groups | Age | Cobb angle (°) | no of level | Time in min during different surgical stages | EBL in ml during different surgical stages | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Pre op | Flexibility% | Post op | Dissection | Screw insertion | Rod derotation | Bone grafting | Total | D-EBL | S-EBL | R-EBL | B-EBL | Total | ||||
Total
|
Mean
| 17.6 | 76.3 | 43.1 | 22.3 | 14.3 | 60.3 | 78.8 | 35.7 | 24.3 | 199.1 | 350.8 | 749.7 | 884.7 | 584.3 | 2569.4 |
SD
| 7.3 | 24.0 | 10.1 | 16.2 | 1.9 | 19.2 | 23.2 | 14.1 | 7.4 | 44.3 | 270.3 | 554.7 | 597.8 | 423.7 | 1455.9 | |
AIS (group 1)
|
Mean
| 16.5 | 75.0 | 41.3 | 24.1 | 12.1 | 47.1 | 66.2 | 27.1 | 21.9 | 162.4 | 229.3 | 385.0 | 523.3 | 386.3 | 1523.9 |
SD
| 9.1 | 25.3 | 9.1 | 19.4 | 1.4 | 13.5 | 16.8 | 7.8 | 5.3 | 26.3 | 164.9 | 171.3 | 379.8 | 265.5 | 669.0 | |
CP
(group 2)
|
Mean
| 21.9 | 85.5 | 41 | 23.9 | 15.0 | 66.9 | 79.7 | 43.5 | 24.9 | 215.0 | 391.1 | 906.9 | 762.3 | 607.6 | 2667.9 |
SD
| 7.1 | 21.5 | 11.3 | 16.2 | 1.3 | 12.3 | 28.0 | 14.2 | 7.9 | 34.6 | 256.5 | 539.2 | 325.9 | 396.0 | 1015.6 | |
Paralytic (group 3)
|
Mean
| 14.4 | 68.5 | 46.8 | 18.9 | 15.6 | 66.0 | 89.7 | 35.9 | 25.9 | 217.5 | 423.9 | 932.7 | 1344.3 | 745.7 | 3446.6 |
SD
| 2.4 | 23.6 | 9.1 | 13.4 | 0.7 | 23.5 | 18.1 | 14.6 | 8.3 | 47.1 | 333.4 | 656.9 | 696.2 | 511.3 | 1770.8 |
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 |
0.841#
| 5.3 |
0.942#
| 2.9 |
0.998#
| 1.6 |
0.648#
| 14.4 |
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
|
Dissection | Screw insertion | Correction | Bone grafting | Total | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Group | Levels | EBL | p value | EBL | p value | EBL | p value | EBL | p value | EBL | p value | |||||
AIS
| 12.1 | 19.6 |
0.473§
|
0.579*
| 31.3 |
0.028§
|
0.043*
| 41.6 |
0.002§
|
0.748*
| 31.3 |
0.276§
|
0.64*
| 123.9 |
0.008§
|
0.018*
|
CP
| 15 | 26.2 |
0.498#
| 59.3 |
0.048#
| 50.5 |
0.002#
| 40.5 |
0.245#
| 176.5 |
0.006#
| |||||
Paralytic
| 15.6 | 27.2 |
0.99α
| 59.8 |
0.999α
| 86 |
0.013α
| 47.7 |
0.743α
| 220.7 |
0.29α
|
Per level stage lengths | Per level EBL for each stage | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Dissection
|
Screw
|
Correction
|
Bone grafting
|
Total
|
Dissection
|
Screw
|
Correction
|
Bone grafting
|
Total
| |
Chi-square
| 1.26 | 9.609 | 10.216 | 1.503 | 8.223 | 1.474 | 0.369 | 4.862 | 1.037 | 0.943 |
df
| 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
p value
| 0.533 | 0.008* | 0.006* | 0.472 | 0.016 | 0.479 | 0.831 | 0.088 | 0.595 | 0.624 |
CBC (Hb) | PT | CT | Platelets | APTT | BMD | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Group | gm% | p value | % | p value | min | p value | n/cumm | p value | sec | p value | T-Score | p value |
AIS
| 14.19 |
0.46§
| 93.75 |
0.81§
| 1.3 |
0.5§
| 277500 |
0.32§
| 33.91 |
0.98§
| -1.2 |
0.0001§
|
CP
| 13.64 | 92.16 | 1.23 | 244923 | 33.93 | -2.1 | ||||||
Paralytic
| 14.12 | 94.37 | 1.02 | 245181 | 33.57 | -2.9 |