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Table 2 Predictive factors for the postoperative complications

From: Risk factors for postoperative complication after spinal fusion and instrumentation in degenerative lumbar scoliosis patients

Characteristics Patients with postoperative complications
Yes (n = 21) No (n = 84) P
FVC (%) 69.8 ± 10.4 73.9 ± 7.5 0.042
Surgical Procedure, n (%)    0.458
  Decompression alone 1 (4.8%) 12 (14.3%)  
  Instrumented fusion 20 (95.2%) 72 (85.7%)  
No. of levels fused 4.2 ± 0.8 3.7 ± 1.0 0.029
Op time (min) 296.5 ± 51.4 217.7 ± 46.8 0.000
EBL(mL) 999.8 ± 218.1 849.3 ± 275.6 0.022
Transfusion( U/pt) 2.3 ± 2.0 1.5 ± 1.1 0.022
Allograft, n (%)    0.315
  Yes 15 (71.4%) 50 (59.5%)  
  No 6 (28.6%) 34 (40.5%)  
  1. Note: FVC: forced vital capacity; Op time: operation time; EBL: estimated blood loss during operation; U blood units: U/pt: units per patient.