Groups | n | Survival rate (%) | Median time (months) | 95%CI | ||
---|---|---|---|---|---|---|
6Â months | 1Â year | 3Â years | ||||
Surgical approach | ||||||
 Combination therapy group | 31 | 0.839 | 0.613 | 0.452 | 28 | - |
 PVP alone | 31 | 0.839 | 0.613 | 0.161 | 19 | 9.002 ~ 28.998 |
KPS score before surgery | ||||||
 60–70 | 30 | 0.813 | 0.656 | 0.125 | 14 | 7.070 ~ 20.930 |
 80–100 | 30 | 0.867 | 0.733 | 0.500 | 33 | 14.252 ~ 27.748 |
Primaries | ||||||
 Slow growth | 23 | 0.957 | 0.826 | 0.522 | - | - |
 Moderate growth | 19 | 0.895 | 0.632 | 0.316 | 20 | 15.653 ~ 26.558 |
 Rapid growth | 20 | 0.650 | 0.500 | 0.050 | 12 | 9.932 ~ 18.868 |
Vertebral segments | ||||||
 1 segment | 17 | 0.941 | 0.882 | 0.588 | - | - |
 2 segments | 23 | 0.826 | 0.696 | 0.304 | 25 | 18.117 ~ 28.231 |
  ≥ 3 segments | 22 | 0.773 | 0.445 | 0.091 | 10 | 10.986 ~ 19.923 |