TABLE 1:

Demographic stratification

Criterion	Group 1	Group 2
No. of patients	24	24
Men	5	8
Women	19	16
Patient age (y)	74 (52–92)	73 (47–87)
Level	42	42
Mid thoracic, T5–T8	7	10
Lower thoracic, T9–T12	8	13
Upper lumbar, L1–L3	17	13
Lower lumbar, L4–L5	10	6
Compression (%)	30.4 (10–70)	33.6 (5–90)
Amount of PMMA (mL)	4.65	3.09
Approach
Unipediculate	27	37
Bipediculate	15	5

Note.—Data in parentheses are ranges.