Skip to main content

Table 2 The main measurements of paraspinal muscles

From: Can paraspinal muscle degeneration be a reason for refractures after percutaneous kyphoplasty? A magnetic resonance imaging observation

  Groups Z/t P
Refractured (n = 33) No-refractured (n = 59)
ROI-CSA (mm2)
 Preoperative 1557.51 (1277.39, 1856.21) 1566.77 (1305.55, 1930.76) − 0.094 0.925
 Final follow-up 1432.54 (1105.15, 1718.53) 1512.38 (1278.10, 1970.32) − 1.176 0.239
 Percentage change (%) − 10.1 (− 11.8, − 7.5) − 1.3 (− 3.0, 0.2) − 7.442 < 0.001
ROI-SI
 Preoperative 471.07 (404.33, 532.65) 466.52 (385.81, 579.83) − 0.550 0.583
 Final follow-up 529.31 (438.12, 597.54) 476.34 (402.25, 587.29) − 1.221 0.222
 Percentage change (%) 10.6 (5.3, 16.7) 1.4 (− 2.3, 4.1) − 5.675 < 0.001
The ratio of CSA/SI
 Preoperative 3.38 ± 0.89 3.30 ± 0.88 0.412 0.681
 Final follow-up 2.71 ± 0.72 3.23 ± 0.85 − 2.933 0.004
 Percentage change (%) − 19.2 (− 23.0, − 15.0) − 2.5 (− 6.3, 0.5) − 7.738 < 0.001
  1. Normally distributed data were described as mean ± SD, while non-normally distributed data were reported by median (Q1, Q3)