Table 1 General information
| Â | surgical sitesN | observation group35 | control group35 | P-value |
|---|---|---|---|---|
|  | Age(year) | 47.2±2.32 | 46.3±1.89 | 0.852 |
Gender | Male(n) | 23 | 20 | 0.461 |
Fmale(n) | 12 | 15 | ||
Fracture location | T11(n) | 3 | 2 | 0.949 |
T12(n) | 11 | 10 | ||
L1(n) | 17 | 19 | ||
L2(n) | 4 | 4 | ||
AOSpine classification | TypeA3(n) | 25 | 24 | 1.000 |
TypeA4(n) | 10 | 11 | ||
Causes of fractures | traffic accidents(n) | 14 | 13 | 0.806 |
falling from height(n) | 21 | 22 | ||
|  | operation time(min) | 120.3±22.6 | 78.2±19.4 | 0.000* |
complicatiocns | urinary retention(n) | 1 | 3 | 0.081 |
dural tear(n) | 0 | 1 | ||
fluid leakage(n) | 0 | 1 |