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Table 2 Revision and reoperation rates

From: Do refinements to original designs improve outcome of total knee replacement? A retrospective cohort study

  Classic (n = 100) Complete (n = 100) p value
  n Int n Int n Int
Revision 3 32 ±31.7 5 14 ±4.6 0.72 0.43
  Loosening of tibial tray 2 14 ±5.0 4 15 ±4.2 0.68 0.72
  Loosening femoral component 0   1 9   
  Hypersensitivity to implant 1 68 0    
Reoperation 8   9   1.00  
  Arthroscopy 7 15 ±8.3 7 8 ±5.4 1.00 0.07
  Arthrotomy 1 27 1 0 1.00  
  Patellar replacement 1 25 1 12 1.00  
MUA 5 2.6 ±1.3 2 2.5 ±0.7 0.44 0.52
  1. Values are given as mean ± standard deviation. Int, interval, time from index surgery to intervention in months; MUA, mobilization under anaesthesia.