Prognostic analysis of percutaneous vertebroplasty (PVP) combined with 125I implantation on lumbosacral vertebral osteoblastic metastases

Table 4 Survival time for 62 cases of lumbosacral vertebral osteoblastic metastasis

Groups	n	Survival rate (%)			Median time (months)	95%CI
Groups	n	6 months	1 year	3 years	Median time (months)	95%CI
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

ISSN: 1477-7819