ArticleArchives of orthopaedic and trauma surgery2024
Accuracy of cup placement and pelvic motion in total hip arthroplasty in the lateral decubitus position using a new computed tomography-based navigation system with augmented reality technology.
Article in Archives of orthopaedic and trauma surgery, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Accuracy of acetabular cup installation angles using two augmented reality navigation systems: computed tomography-based and noninvasive portable systems in total hip arthroplasty.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2026Article
- Comparison of accuracy between Navbit Sprint and AR-CT-based navigation in total hip arthroplasty.Scientific reports · 2026Article
- Estimation of cup orientation on intraoperative fluoroscopy in total hip arthroplasty: how safe is the safe zone-an experimental study.Archives of orthopaedic and trauma surgery · 2025Article
- Augmented reality navigation systems vs. conventional techniques in acetabular cup positioning: a systematic review and meta-analysis.Journal of orthopaedics · 2025Review
- Accuracy of leg length changes in total hip arthroplasty using a computed tomography-based augmented reality navigation system.Archives of orthopaedic and trauma surgery · 2024Article
- Implant position accuracy using dynamic computer-assisted implant surgery (CAIS) combined with augmented reality: A randomized controlled clinical trial.Journal of dental sciences · 2024Article
- Accuracy of Acetabular Component Positioning Using a Mixed Reality-Guided Navigation System During Total Hip Arthroplasty.JB & JS open accessArticle
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionThis study aimed to investigate the accuracy of cup position and assess the changes in pelvic tilt during primary total hip arthroplasty (THA) in the lateral decubitus position using a new computed tomography (CT)-based navigation system with augmented reality (AR) technology. MATERIALS AND
methodsThere were 37 cementless THAs performed using a CT-based navigation system with AR technology in the lateral decubitus position and 63 cementless THAs performed using manual implant techniques in the lateral decubitus position in this retrospective study. Postoperative cup radiographic inclination and anteversion were measured using postoperative CT, and the proportion of hips within Lewinnek's safe zone was analyzed and compared between the two groups. The mean absolute values of navigation error were assessed. Intraoperative pelvic tilt angles were also recorded using navigation system.
resultsThe percentage of cups inside Lewinnek's safe zone was 100% in the navigation group and 35% in the control group (p < 0.001). The mean absolute values of navigation error in inclination and anteversion were 2.9° ± 2.1° and 3.3° ± 2.4°, respectively. The mean abduction angle of the pelvis was 5.1° ± 4.8° after placing the patients in the lateral decubitus position and 4.1° ± 6.0° after cup placement. The mean posterior tilt angle was 6.8° ± 5.1° after placing the patients in the lateral decubitus position and 9.3° ± 5.9° after cup placement. The mean internal rotation angle was 14.8° ± 7.4° after cup placement. There were no correlations between the navigation error in inclination or anteversion and the absolute values of changes of the pelvic tilt angle at any phase.
conclusionsAlthough progressive pelvic motion occurred in THA in the lateral decubitus position, especially during cup placement, the CT-based navigation system with AR technology improved cup placement accuracy.
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