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Table 2 Postoperative component alignment

From: Influence of navigation system updates on total knee arthroplasty

(A) Mean degrees of individual component alignment ( ± SD)
  Version 3.1 group Version 4.0 group P- value
Radiograph    
Number 33 49  
 HKA (°) 179.8 ± 2.6 179.5 ± 1.7 n.s
 FFC (°) 90.2 ± 1.6 90.6 ± 1.3 n.s
 FTC (°) 89.5 ± 1.8 90.2 ± 1.3 n.s
 LTC (°) 85.5 ± 2.4 85.6 ± 1.6 n.s
 LFC (°) 5.8 ± 2.8 6.7 ± 3.1 n.s
CT    
Number 26 25  
 RFC (°) −0.5 ± 2.3 0.2 ± 2.2 n.s
 RTC (°) −0.2 ± 3.4 1.1 ± 3.4 n.s
(B) Ideal implantations
Radiograph    
 HKA 84.8% (28/33) 95.9% (47/49) n.s
 FFC 87.8% (29/33) 91.8% (45/49) n.s
 FTC 87.8% (29/33) 93.9% (46/49) n.s
 LTC 81.8% (27/33) 91.8% (45/49) n.s
CT    
 RFC 80.7% (21/26) 84.0% (21/25) n.s
 RTC 73.1% (19/26) 72.0% (17/25) n.s