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Table 2 Comparing the range of motion, Knee Society knee score and Knee Society function score by (a) groups, (b) time points

From: No difference in long-term functional outcomes or survivorship after total knee arthroplasty with or without computer navigation: a 17-year survivorship analysis

(a) Comparing NAV-TKR and CONV-TKR groups
  NAV-TKR CONV-TKR p-Value
Pre-operative    
Range of motion (degrees) 92.35 ± 19.10 94.86 ± 17.78 0.42
Knee Society knee score 28.84 ± 13.35 32.35 ± 15.75 0.17
Knee Society function score 52.18 ± 11.34 50.47 ± 16.18 0.91
Post-operative    
Range of motion (degrees) 98.47 ± 13.63 103.66 ± 13.62 0.02
Knee Society knee score 90.57 ± 12.18 89.95 ± 15.75 0.80
Knee Society function score 59.15 ± 22.04 55.48 ± 29.49 0.21
(b) Comparing pre-operative and post-operative scores
  Pre-operative Post-operative p-Value
NAV-TKR    
Range of motion (degrees) 92.35 ± 19.10 98.47 ± 13.63 0.02
Knee Society knee score 28.84 ± 13.35 90.57 ± 12.18  < 0.01
Knee Society function score 52.18 ± 11.34 59.15 ± 22.04 0.04
CONV-TKR    
Range of motion (degrees) 94.86 ± 17.78 103.66 ± 13.62  < 0.01
Knee Society knee score 32.35 ± 15.75 89.95 ± 15.75  < 0.01
Knee Society function score 50.47 ± 16.18 55.48 ± 29.49 0.04
  1. Mean ± SD
  2. SD standard deviation