Table 1.
Surgery sessions monitored
| Age | Sex | Level of malformation | Surgery correction technique |
| 31 | F | D5-L4 | CD |
| 13 | F | D5-L1 | HR |
| 17 | M | D3-L3 | HR |
| 20 | F | D5-L3 | CD |
| 14 | F | D4-L4 | CD |
| 17 | F | D3-L1 | CD |
| 16 | F | D3-L4 | CD |
| 53 | F | D4-L5 | CD |
CD is for Cotrel-Dubousset, HR is for Harrington.