Table 2.
The basic information of operative levels
| Operative levels | T6 | T8 | T9 | T10 | T11 | T12 | L1 | L2 | L3 | L4 | L5 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| PMMA | 2 | 2 | 2 | 2 | 5 | 5 | 2 | 2 | 5 | 3 | 2 |
| MC-PMMA | 1 | 4 | 3 | 3 | 2 | 2 | 7 | 4 | 1 | 3 | 1 |
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