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Table 4 Postoperative knee and ankle radiographic parameter measurements and their Preoperative-Postoperative change values

From: Robot-assisted total knee arthroplasty is more precise than conventional total knee arthroplasty in restoring knee, but not ankle alignment: a retrospective study based on imaging data

 

FA

MA

t

p

Knee

    

 HKA

1.13 ± 2.86

2.77 ± 2.85

-4.073

0.000

 Outlier*(>3°)

24

46

10.581

0.000

 MPTA

89.95 ± 1.83

89.53 ± 1.91

1.203

0.230

 mLDFA

90.80 ± 1.81

92.29 ± 2.24

-5.212

0.000

 JLCA

0.37 ± 0.83

0.29 ± 0.68

0.790

0.430

 ΔHKA

9.36 ± 4.93

8.00 ± 5.40

1.860

0.064

 ΔMPTA

5.22 ± 3.14

5.26 ± 3.15

-0.096

0.924

 ΔmLDFA

0.90 ± 2.72

2.47 ± 2.73

-4.098

0.000

 ΔJLCA

-4.85 ± 2.69

-4.74 ± 2.77

-0.291

0.771

Ankle

    

 TPIA

2.02 ± 4.10

1.62 ± 4.98

0.629

0.530

 TTTA

0.83 ± 1.22

0.93 ± 1.59

-0.470

0.639

 TIA

1.18 ± 4.24

0.69 ± 5.30

0.738

0.461

 TTA

92.31 ± 4.33

92.74 ± 4.94

-0.668

0.505

 LDTA

86.86 ± 4.14

86.33 ± 4.51

0.872

0.384

 ΔTPIA

6.09 ± 3.98

5.75 ± 4.91

0.545

0.587

 ΔTTTA

-0.46 ± 1.32

-0.62 ± 1.39

0.841

0.402

 ΔTIA

6.55 ± 3.85

6.37 ± 4.94

0.292

0.770

 ΔTTA

1.54 ± 3.55

2.21 ± 4.77

-1.130

0.260

 ΔLDTA

-1.11 ± 3.66

-1.59 ± 4.60

0.822

0.412

  1. *Chi-square test, independent sample t-tests are used for the others. The data are presented as the mean ± standard deviation
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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X