Accuracy of acetabular cup insertion in an anterolateral supine approach using an accelerometer-based portable navigation system

The purpose of this study was to determine the accuracy of acetabular cup insertion during total hip arthroplasty (THA) in a supine position using an accelerometer-based portable navigation system. A single-surgeon study was conducted in which 62 prospective patients with navigation and 42 retrospec...

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Bibliographic Details
Published in:Journal of artificial organs 2021-03, Vol.24 (1), p.82-89
Main Authors: Hasegawa, Masahiro, Naito, Yohei, Tone, Shine, Wakabayashi, Hiroki, Sudo, Akihiro
Format: Article
Language:English
Subjects:
Accelerometers
Accuracy
Acetabular components
Acetabulum
Attitude (inclination)
Biomedical Engineering and Bioengineering
Biomedical materials
Cardiac Surgery
Error analysis
Inclination
Insertion
Mathematical analysis
Medicine
Medicine & Public Health
Navigation systems
Nephrology
Original Article
Portability
Risk analysis
Risk factors
Supine position
Surgical implants
Total hip arthroplasty
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Summary:The purpose of this study was to determine the accuracy of acetabular cup insertion during total hip arthroplasty (THA) in a supine position using an accelerometer-based portable navigation system. A single-surgeon study was conducted in which 62 prospective patients with navigation and 42 retrospective patients without navigation as historical controls were compared. The patients underwent THA via an anterolateral supine approach. The absolute values of errors of radiographic inclination and anteversion were calculated. The navigation error was also calculated. The factors that affected the absolute values of errors of cup alignment were determined. The mean absolute error of the postoperative CT measurement from the target angle for radiographic inclination was 3.8° in the navigation group and 6.6° in the control group ( P  
ISSN:1434-7229
1619-0904
DOI:10.1007/s10047-020-01206-8