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Table 2 Patient demographic data (Non-revision group vs. revision group)

From: The fate of thoracolumbar surgeries in patients with Parkinson’s disease, and analysis of risk factors for revision surgeries

  Non-revision group (n = 47) Revision group (n = 19) P value
Patient-related factors
 Age 70.43 ± 7.39 66.74 ± 6.28 0.060
 Gender (M/F) 17/30 5/14 0.442
 DM 11 (23.4) 5 (26.3) 0.803
 HTN 29 (61.7) 10 (52.6) 0.497
 CKD 0 (0) 1 (5.3) 0.113
 IHD 7 (14.9) 1 (5.3) 0.278
 Cancer 0 (0) 2 (10.5) 0.024*
 Osteoporosis 10 (21.3) 10 (52.6) 0.012*
 Modified H&Y stage    < 0.001*
  1 11 0  
  1.5 10 1  
  2 11 1  
  2.5 5 1  
  3 8 12  
  4 2 4  
Surgery-related factors
 Blood loss (cc) 1072.55 ± 1094.20 989.47 ± 836.26 0.767
 Surgical levels    0.094
   ≤ 3 28 (59.6) 7 (36.8)  
   > 3 19 (40.4) 12 (63.2)  
 T-spine instrumentation 2 (4.3) 3 (15.8) 0.109
 Interbody fusion 29 (61.7) 8 (42.1) 0.146
 Corrective osteotomy 1 (2.1) 3 (15.8) 0.035*
 Combined anterior approach 2 (4.3) 1 (5.3) 0.859
Radiographic parameters
Pre OP-
 LL 37.20 ± 17.29 42.75 ± 14.15 0.220
 SS 29.39 ± 9.44 32.67 ± 5.92 0.165
 PT 22.09 ± 10.40 22.81 ± 9.31 0.794
 PI 51.67 ± 10.40 55.48 ± 10.08 0.179
Post OP
 LL 36.39 ± 14.08 38.74 ± 10.23 0.512
 SS 29.89 ± 9.21 30.17 ± 6.61 0.905
 PT 21.31 ± 9.13 21.81 ± 8.21 0.836
 PI 51.2 0 ± 9.31 51.98 ± 8.48 0.753
LL = PI ±9 20 (42.6) 4 (21.1) 0.100
PT < 20 20 (42.6) 5 (26.3) 0.218
Spino-pelvic realignment achievement
  0 20 (42.6) 12 (63.2) 0.224
  1 14 (29.8) 5 (26.3)  
  2 13 (27.7) 2 (10.5)  
  1. DM Diabetes mellitus, HTN Hypertension, CKD Chronic kidney disease, IHD Ischemic heart disease, modified H&Y stage modified Hoehn and Yahr stage, T-spine Thoracic spine, LL Lumbar lordosis, SS Sacral slope, PT Pelvic tilt, PI Pelvic incidence