TABLE 1.

Summary of patient demographic and clinical characteristics

Variable	Value*
Mean age at surgery (yrs) (n = 166)	59 ± 14
<55	55 (33)
55–64	51 (31)
≥65	60 (36)
Sex (n = 166)
Female	55 (33)
Male	111 (67)
Pain at diagnosis (n = 159)
No	17 (11)
Yes	142 (89)
Pathological fracture at diagnosis (n = 160)
No	131 (82)
Yes	29 (18)
Previous spine tumor operation (n = 165)
No	115 (70)
Yes	50 (30)
Diagnostic method (n = 126)
Open biopsy	29 (23)
CT-trocar biopsy	76 (60)
Intraoperative biopsy	21 (17)
Enneking appropriateness (n = 142)
EA	58 (41)
EI	84 (59)
Adjuvant therapy (n = 166)
No	81 (49)
Yes	85 (51)
Local recurrence (n = 166)
No	108 (65)
Yes	58 (35)
Survival (n = 166)
Alive	109 (66)
Dead	57 (34)

^*Data are presented as number of patients (%) unless stated otherwise. The mean value is presented as mean ± SD.