A mysterious risk factor for bone cement leakage into the spinal canal through the Batson vein during percutaneous kyphoplasty: a case control study

Table 1 Estimated and actual measurements

Vertebral body	Included amount(n)	Old fracture(n)	Fresh fracture (n)	Actual measurement(n)
T6	98	2	2	94
T7	98	5	3	90
T8	98	2	6	90
T9	98	1	3	94
T10	98	1	7	90
T11	98	2	6	90
T12	98	4	14	80
L1	98	6	22	70
L2	98	5	21	72
L3	98	2	7	89
L4	98	1	7	90
L5	98	0	6	92

ISSN: 1471-2474

Vertebral body	Included amount(n)	Old fracture(n)	Fresh fracture (n)	Actual measurement(n)
T6	98	2	2	94
T7	98	5	3	90
T8	98	2	6	90
T9	98	1	3	94
T10	98	1	7	90
T11	98	2	6	90
T12	98	4	14	80
L1	98	6	22	70
L2	98	5	21	72
L3	98	2	7	89
L4	98	1	7	90
L5	98	0	6	92

Vertebral body	Included amount(n)	Old fracture(n)	Fresh fracture (n)	Actual measurement(n)
T6	98	2	2	94
T7	98	5	3	90
T8	98	2	6	90
T9	98	1	3	94
T10	98	1	7	90
T11	98	2	6	90
T12	98	4	14	80
L1	98	6	22	70
L2	98	5	21	72
L3	98	2	7	89
L4	98	1	7	90
L5	98	0	6	92

Vertebral body	Included amount(n)	Old fracture(n)	Fresh fracture (n)	Actual measurement(n)
T6	98	2	2	94
T7	98	5	3	90
T8	98	2	6	90
T9	98	1	3	94
T10	98	1	7	90
T11	98	2	6	90
T12	98	4	14	80
L1	98	6	22	70
L2	98	5	21	72
L3	98	2	7	89
L4	98	1	7	90
L5	98	0	6	92