Demographic and peri-interventional data of the patient cohort

DemographicsData
No. of patients133
Women77
Men56
Mean age (yr)69.18 ± 11.45 (range, 22–90)
ASA Score
    ASA 13 (2.3%)
    ASA 231 (23.3%)
    ASA 368 (51.1%)
    ASA 431 (23.3%)
No. of vertebrae treated162
    1 VB per session113
    2 VBs per session11
    3 VBs per session9
Time of intervention (mean min)64.2 ± 25.6
    1 VB treated per session57.9 ± 24.2
    2 VBs treated per session65.6 ± 28.8
    3 VBs treated per session70.0 ± 24.9
Amount of piritramid (mg) (mean total)11.8 ± 3,98
    1 VB11.41 ± 4.29
    2 VBs12.6 ± 3.0
    3 VBs13.11 ± 3.4
Amount of midazolam (mg) (mean total)11.3 ± 4.38
    1 VB10.8 ± 4.4
    2 VBs11.9 ± 3.8
    3 VBs14.0 ± 3.9
Etiology of vertebral fracture
    Osteoporosis86 (64.7%)
    Metastasis of unknown primary6 (4.5%)
    Metastasis of known primary22 (16.5%)
    Plasmocytoma15 (11.3%)
    Lymphoma4 (3%)