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Table 2: Radiologic and operative characteristics
Characteristics No. Percent/Range
Treated vertebrae (thoracic/lumbar) 140 (71/69) 
No. of metastatic vertebrae treated for each patient 
 Single 53 
 2 30 
 3 5 
 4 3 
Type of destruction (osteolytic/mixed) 114/26 
Posterior wall involvement 49/140 35%
Vertebral body compression 52/140 37%
Ablation power (mean) (range) (W) 29.3 (SD, 4.39) 20–40
Ablation time (mean) (range) (min) 3.48 (SD, 1.36) 2–5
Cement filling rate of the lesion 
 50%–75% 35 25%
 75%–90% 53 37.9%
 ≈100% 52 37.1%
Cement leakage 42/140 30%
 Diskal 12 
 Epidural 6 
 Paravertebral 20 
 Foramina 3 
 Access track 4 
Volume of cement for each vertebra (mean) (range) (mL) 5.4 (SD, 2.4) 2–8

Characteristics	No.	Percent/Range
Treated vertebrae (thoracic/lumbar)	140 (71/69)
No. of metastatic vertebrae treated for each patient
Single	53
2	30
3	5
4	3
Type of destruction (osteolytic/mixed)	114/26
Posterior wall involvement	49/140	35%
Vertebral body compression	52/140	37%
Ablation power (mean) (range) (W)	29.3 (SD, 4.39)	20–40
Ablation time (mean) (range) (min)	3.48 (SD, 1.36)	2–5
Cement filling rate of the lesion
50%–75%	35	25%
75%–90%	53	37.9%
≈100%	52	37.1%
Cement leakage	42/140	30%
Diskal	12
Epidural	6
Paravertebral	20
Foramina	3
Access track	4
Volume of cement for each vertebra (mean) (range) (mL)	5.4 (SD, 2.4)	2–8