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Table 2 Summary of mean differences between intraoperative and image-based measurements. P-value indicates the probability of observing the mean delta (relative to zero) as extreme assuming the null hypothesis is true

From: Imageless navigation system (Naviswiss) provides accurate component position in total hip arthroplasty with lateral decubitus position for end-stage hip osteoarthritis: a prospective cohort study with CT-validation

Sign

Mean Delta

SE

SD

95% LCI

95% UCI

P-Value

Lower LOA

Upper LOA

Inclination

1.0

0.79

4.6

-0.6

2.5

0.528

-8.0

10.0

Version

2.0

0.77

4.5

0.5

3.5

0.027

-6.8

10.8

Offset

1.9

0.51

3.0

0.9

2.9

 <0.001

-4.0

7.7

LLD

0.2

0.47

2.7

-0.8

1.1

0.68

-5.2

5.5

Absolute

 Inclination

3.6

0.53

3.1

2.6

4.7

   

 Version

4

0.44

2.6

3.2

4.9

   

 Offset

2.7

0.38

2.2

1.9

3.4

   

 LLD

2.2

0.28

1.6

1.7

2.8

   
  1. LLD leg length discrepancy, SE standard error of the estimate, SD standard deviation, LCI lower confidence interval, UCI upper confidence interval, LOA limits of agreement
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Arthroplasty

ISSN: 2524-7948

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