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Table 6 Outcomes and complications of KP between glucocorticoid users and non-glucocorticoid users in RA

From: Radiological and clinical outcomes of balloon kyphoplasty for osteoporotic vertebral compression fracture in patients with rheumatoid arthritis

Variable Glucocorticoid users Non-glucocorticoid users P value
Glucocorticoid users/vertebrae 65/116 33/42  
Age (year) 72.1 69.8 0.246
Gender (male to female) 5:60 3:30 0.999
BMD (g/cm2) 0.51 0.60 0.041
Time to surgery 21.24 20.38 0.382
ESR (mm/h) 33.9 39.6 0.106
CRP (mg/dL) 9.0 13.95 0.061
Cement volume (mL) 6.13 6.34 0.369
Cement leakage (vertebra) 38 (32.8%) 5 (11.9%) 0.009
Paravertebral leakage 15 3 0.404
Intradiscal leakage 19 1 0.027
Intraspinal leakage 3 2 0.609
Refracture 2 1 0.999
Adjacent vertebral fracture 17 1 0.044
Radiological outcomes
Compression rate (%) Preop 58.57% 63.05% 0.185
1 year FU 69.97% 75.05% 0.102
Local kyphotic angel (°) Preop 7.86 8.16 0.344
1 year FU 3.98 4.69 0.074
Clinical outcomes
VAS Preop 8.13 8.07 0.652
1 year FU 2.31 2.37 0.564
ODI Preop 81.90 79.58 0.449
1 year FU 26.78 28.35 0.506
  1. Values are given as mean ± SD. BMD indicates bone mineral density, ESR indicates erythrocyte sedimentation rate, CRP indicates c-reactive protein, and Refracture indicates the operated vertebral body refractured again after KP. Preop indicates preoperation, FU indicates follow-up, VAS indicates visual analog scale, and ODI indicates Oswestry disability index