Survival Outcomes and Factors Associated with Revision Surgery for Metastatic Disease of the Spine

Table 1

Patient and tumor characteristics.

	Revision (n = 12)		No revision (n = 43)		pvalue
	n	%	n	%
Gender					>.999^a
Male	7	58.3	26	60.5
Female	5	41.7	17	39.5
Race					>.999^a
Caucasian	9	75.0	31	72.1
African American	2	16.7	7	16.3
Asian	1	8.3	3	7.0
Other	0	0.0	2	4.7
Smoker					.055^a
Yes	9	75.0	18	41.9
No	3	25.0	25	58.1
Primary malignancy type					.323^a
Renal cell carcinoma	5	41.7	10	23.3
Melanoma	1	8.3	4	9.3
Colorectal	0	0.0	6	14.0
Breast	2	16.7	2	4.7
Multiple myeloma	0	0.0	7	16.3
Lung	1	8.3	3	7.0
Other	3	25.0	11	25.6
Vertebral levels
C-Mets	3	25.0	8	18.6	.689^a
T-Mets	9	75.0	30	69.8	>.999^a
L-Mets	1	8.3	12	27.9	.255^a
Pain					.566^a
Yes	12	100.0	39	90.7
No	0	0	4	9.3
Spine Mets at initial presentation					.050^a
Yes	0	0.0	12	27.9
No	12	100	31	72.1
ASIA motor score at first visit					.826^a
E	11	91.7	34	79.1
D	1	8.3	5	11.6
C	0	0.0	4	9.3
Allograft					.147^a
Yes	11	91.7	29	67.4
No	1	8.3	14	32.6
Chemo					.064^a
Yes	9	75.0	41	95.4
No	3	25.0	2	4.6
Radiation					.255^a
Yes	11	91.7	31	72.1
No	1	8.3	12	27.9
Preop. embo.					.730^a
Yes	4	33.3	12	27.9
No	8	66.7	31	72.1
Extraspinal Mets					.429^a
Yes	8	66.7	35	81.4
No	4	33.3	8	18.6
Age (years)					.741^b
Mean (SD)	59.1 (7.5)		58.1 (13.3)
Spine burden					.546^c
Median (IQR)	1.0 (1.0-3.5)		1.0 (1.0-2.0)