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Table 3 Comparative results between recollapse and non-recollapse group

From: Outcome of balloon kyphoplasty for the treatment of osteoporotic vertebral compression fracture in patients with rheumatoid arthritis

  Recollapse group Non-recollapse group P-value
Age(years) 72.5 ± 4.3 69.3 ± 7.1 0.391
Sex    0.901
 Female (n) 5 15  
 Male (n) 1 2  
BMI (kg/m2) 23.0 ± 3.9 25.1 ± 3.3 0.127
BMD (g/cm2) 0.53 ± 0.13 0.56 ± 0.08 0.274
ESR (mm/h) 35.0 ± 17.0 35.4 ± 25.8 0.695
CRP (mg/dL) 1.17 ± 0.62 1.96 ± 2.49 0.764
Cement volume (ml) 6.2 ± 2.1 6..5 ± 1.8 0.835
Cement time (min) 10.9 ± 1.4 10.4 ± 1.4 0.473
Cement leakage (n) 9/24 5/7 0.112
Loss of vertebral height (%) 9.3 ± 4.9 2.8 ± 3.4 0.001
Loss of kyphotic angle (°) 7.6 ± 3.5 3.3 ± 3.2 0.008
VAS (point) −0.8 ± 1.4 −0.3 ± 1.9 0.595
ODI (point) −0.35 ± 8.27 3.0 ± 12.6 0.502
  1. Values are given as mean ± SD. BMI indicates body mass index, BMD bone mineral density, ESR erythrocyte sedimentation rate, CRP c-reactive protein, VAS difference of visual analog scale between postoperation and 1 year follow up, ODI difference of Oswestry Disability index between postoperation and 1 year follow up