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Table 3 Clinical outcome of spinal tuberculosis patients using anterior or posterior debridement joint bone graft and internal fixation by stratification of disease duration

From: A posterior versus anterior debridement in combination with bone graft and internal fixation for lumbar and thoracic tuberculosis

  Tuberculosis duration
  < 6 months   ≥ 6 months
  Anterior Posterior p valuea Anterior Posterior p valuea
No. of individuals 20 11   17 78  
Cobb’s angle
 Preoperative 10.1 ± 11.4 4.1 ± 16.2 0.07 14.7 ± 20.5 5.1 ± 18.8 0.09
 Postoperative − 0.9 ± 12.4 − 0.4 ± 15.1 0.90 6.0 ± 12.8 0.8 ± 14.6 0.20
VAS score
 Preoperative 4.4 ± 1.2 3.4 ± 1.0 0.002 4.8 ± 1.3 4.0 ± 1.2 0.04
 Postoperative 0.7 ± 0.6 0.6 ± 0.8 0.40 0.9 ± 0.6 0.8 ± 0.8 0.61
 Follow-up 0.4 ± 0.5 0.2 ± 0.4 0.43 NA 0.2 ± 0.4 0.20
Frankel score
 Preoperative    0.51    0.96
  A 0 2 (2.8%)   0 1 (1.3%)  
  B 1 (5.0%) 3 (4.2%)   0 1 (1.3%)  
  C 2 (10.0%) 4 (5.6%)   0 3 (3.9%)  
  D 4 (20.0%) 26 (36.6%)   6 (35.3%) 29 (37.2%)  
  E 13 (65.0%) 36 (50.7%)   11 (64.7%) 41 (52.6%)  
 Postoperative    0.66    0.78
  A 0 0   0 0  
  B 0 1 (1.4%)   0 0  
  C 1 (5.0%) 1 (1.4%)   0 2 (2.6%)  
  D 3 (15.0%) 10 (14.1%)   2 (11.8%) 7 (9.0%)  
  E 16 (80.0%) 59 (83.1%)   15 (88.2%) 69 (88.5%)  
Surgery duration (minutes) 197.2 ± 62.1 213.8 ± 89.8 0.30 231.1 ± 80.5 233.4 ± 77.8 0.90
Perioperative blood loss (ml) 660.0 ± 446.5 659.3 ± 582.5 1.00 797.6 ± 648.2 830.1 ± 833.5 0.90
Comorbidity
 Yes 7 (35.0%) 17 (23.9%) 0.39 4 (23.5%) 17 (21.8%) 1.00
 No 13 (65.0%) 54 (76.1%) 13 (76.5%) 61 (78.2%)
Hospitalization (days) 23.2 ± 9.6 22.8 ± 44.0 0.97 15.8 ± 3.2 18.7 ± 14.7 0.42
Fused segment 2.09 ± 0.29 2.19 ± 0.62 0.30 2.40 ± 0.63 2.30 ± 0.71 0.60
  1. a T test used to compare continuous variables; chi-square and Fisher’s tests used to compare the categorical variables