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Table 1 Patients demographics and surgical details

From: The application of close incisional negative pressure wound therapy in revision arthroplasty among asian patients: a comparative study

   ciNPWT   Control   P-value
Number of patients % Number of patients %
Total Number of patients   36   48   
Age at operations Mean age 69.4   70.9   0.557
Sex Male 20 55.6 17 35.4 0.066
Female 16 44.4 31 64.6  
Types of revision surgery Hip 12 33.3 26 54.2 0.058
Knee 24 66.7 22 45.8  
Indications Infected 23 63.9 20 41.7 0.083
Loosening 5 13.9 17 35.4  
PE wear/ failure 1 2.8 4 8.3  
Instability 1 2.8 2 4.2  
Wound drainage 0 0 2 4.2  
Fracture 1 2.8 2 4.2  
Dislocation 4 11 1 2.1  
Flexion contracture 1 2.8 0 0  
ASA Grade  ≤ 2 15 41.7 19 39.6 0.847
 ≥ 3 21 58.3 29 60.4  
Anesthesia General / General & regional 27 75 39 81.3 0.490
Spinal / Combined spinal epidural 9 25 9 18.8  
Operation Duration (min) Mean 207.2   225.5   0.376
Haemoglobin Per-operative mean 11.5   11.9   0.322
Post-operative mean 9.4   9.8   0.306
Transfusion 11 30.6 11 22.9 0.431
Albumin Pre-operative mean 38.31   39.83   0.243
Post-operative mean 28.56   27.77   0.530
  1. ASA American Society of anesthesiologis