Retrospective study comparing the accuracies of handheld infrared stereo camera and augmented reality-based navigation systems for total hip arthroplasty
- 05.05.2024
- Hip Arthroplasty
Erschienen in:
- Verfasst von
- Shinya Tanaka
- Yasuhiko Takegami
- Yusuke Osawa
- Masanori Okamoto
- Shiro Imagama
- Erschienen in
- Archives of Orthopaedic and Trauma Surgery | Ausgabe 6/2024
Abstract
Background
The use of portable navigation systems (PNS) in total hip arthroplasty (THA) has become increasingly prevalent, with second-generation PNS (sPNS) demonstrating superior accuracy in the lateral decubitus position compared to first-generation PNS. However, few studies have compared different types of sPNS. This study retrospectively compares the accuracy and clinical outcomes of two different types of sPNS instruments in patients undergoing THA.
Methods
A total of 158 eligible patients who underwent THA at a single institution between 2019 and 2022 were enrolled in the study, including 89 who used an accelerometer-based PNS with handheld infrared stereo cameras in the Naviswiss group (group N) and 69 who used an augmented reality (AR)-based PNS in the AR-Hip group (group A). Accuracy error, navigation error, clinical outcomes, and preparation time were compared between the two groups.
Results
Accuracy errors for Inclination were comparable between group N (3.5° ± 3.0°) and group A (3.5° ± 3.1°) (p = 0.92). Accuracy errors for anteversion were comparable between group N (4.1° ± 3.1°) and group A (4.5° ± 4.0°) (p = 0.57). The navigation errors for inclination (group N: 2.9° ± 2.7°, group A: 3.0° ± 3.2°) and anteversion (group N: 4.3° ± 3.5°, group A: 4.3° ± 4.1°) were comparable between the groups (p = 0.86 and 0.94, respectively). The preparation time was shorter in group A than in group N (p = 0.036). There were no significant differences in operative time (p = 0.255), intraoperative blood loss (p = 0.387), or complications (p = 0.248) between the two groups.
Conclusion
An Accelerometer-based PNS using handheld infrared stereo cameras and AR-based PNS provide similar accuracy during THA in the lateral decubitus position, with a mean error of 3°–4° for both inclination and anteversion, though the AR-based PNS required a shorter preparation time.
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- Titel
- Retrospective study comparing the accuracies of handheld infrared stereo camera and augmented reality-based navigation systems for total hip arthroplasty
- Verfasst von
-
Shinya Tanaka
Yasuhiko Takegami
Yusuke Osawa
Masanori Okamoto
Shiro Imagama
- Publikationsdatum
- 05.05.2024
- Verlag
- Springer Berlin Heidelberg
- Erschienen in
-
Archives of Orthopaedic and Trauma Surgery / Ausgabe 6/2024
Print ISSN: 0936-8051
Elektronische ISSN: 1434-3916 - DOI
- https://doi.org/10.1007/s00402-024-05330-5
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