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Table 4 Clinical features, outcomes, and complications of KP between groups of normal and elevated ESR

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

Variable Normal ESR Elevated ESR P value
Patients/vertebrae 31/50 67/108  
Age (year) 70.5 71.7 0.356
Gender (male to female) 2:29 6:61 0.999
Time to surgery 18.45 22.1 0.284
BMD (g/cm2) 0.51 0.56 0.874
ESR (mm/h) 9.6 48.0 < 0.01
CRP (mg/dL) 5.45 13.22 0.043
Glucocorticoid users 21 44 0.840
Cement leakage (vertebra) 14 29 0.142
Refracture 1 2 0.999
Adjacent vertebral fracture 5 13 0.794
Radiological outcomes
Compression rate (%) Preop 56.88% 61.09% 0.058
1 year FU 67.01% 73.31% 0.061
Local kyphotic angel (°) Preop 7.58 8.11 0.080
  1 year FU 3.81 4.34 0.097
Clinical outcomes
VAS Preop 8.01 8.17 0.645
1 year FU 2.18 2.40 0.416
ODI Preop 80.06 81.61 0.561
1 year FU 27.11 27.40 0.592
  1. Values are given as mean ± SD. ESR indicates erythrocyte sedimentation rate, CRP indicates c-reactive protein, BMD indicates bone mineral density, 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