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Table 2 Radiographic outcomes at final follow-up

From: Comparison of the accelerometer-based navigation system with conventional instruments for total knee arthroplasty: a propensity score-matched analysis

 

CON (n = 41)

ABN (n = 41)

P value

HKA absolute deviation

1.92 ± 1.5

1.51 ± 0.9

0.033

HKA within 3° achieved (n, %)

33, 80.5%

39, 95.1%

0.043

FFC absolute deviation

2.06 ± 0.88

1.21 ± 1.1

0.004

FFC within 3° achieved (n, %)

36, 87.8%

41, 100%

0.021

FTC absolute deviation

2.2 ± 1.4

1.3 ± 0.9

0.017

FTC within 3° achieved (n, %)

37, 90.2%

40, 97.6%

0.166

LFF absolute deviation

2.8 ± 1.3

1.7 ± 0.7

0.023

LFF within 3° achieved (n, %)

39, 95.1%

40, 97.6%

0.556

LTC absolute deviation

2.4 ± 1.7

1.4 ± 0.9

0.031

LTC within 3° achieved (n, %)

32, 78%

39, 95.1%

0.023

  1. Absolute deviation: HKA, 180°; FFC/FTC, 90°; LFF, 87°; LTC, 83°. Continuous data are expressed as mean ± standard deviations. P values < 0.05 are in italics
  2. HKA hip-knee-ankle angle, FFC frontal femoral component angle, FTC frontal tibial component angle, LFF lateral femoral flexion angle, LTC lateral tibial component angle