ArticleActa orthopaedica2022
Precision of low-dose CT-based micromotion analysis technique for the assessment of early acetabular cup migration compared with gold standard RSA: a prospective study of 30 patients up to 1 year.
Article in Acta orthopaedica, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 21 papers, 1 of them a synthesis that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Assessment of Bone Displacement Under Loading Following Periprosthetic Fracture Repair With Weight-Bearing CT
Assessment of Bone Displacement Under Loading Following Distal Femur Periprosthetic Fracture Repair With Weight-Bearing CT and Conventional CT
Who cites it
21 citing papers in PubMed, 1 synthesis or guideline pooled it.
- The accuracy and precision of CT-RSA in arthroplasty: a systematic review and meta-analysis.Acta orthopaedica · 2025Pooled it
- CT-RSA with induced displacement used for assessment of aseptic loosening of distal femur reconstructions with megaprostheses in patients reporting pain.Bone & joint open · 2026Article
- Synthetic Implant Migration Generation for Accuracy and Precision Evaluation of AI-Based CT-RSA in Total Hip Arthroplasty.Diagnostics (Basel, Switzerland) · 2026Article
- Inducible displacement CT for implant loosening detection: a scoping review on methods, validation, and challenges.Acta orthopaedica · 2026Article
- Evaluating fixation and bone graft integration at two years post-surgery in uncemented acetabular revisions with large amounts of allograft bone.Bone & joint open · 2026Article
- Precision, Accuracy, and Observer Reliability of Computed Tomography-Based Radiostereometric Analysis in Measuring Femoral Stem Migration In Vitro.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2026Article
- CT-Based Radiostereometric Analysis: A Promising Alternative to Conventional Radiostereometric Analysis in Determining Polyethylene Wear in Total Hip Arthroplasty.Advances in orthopedics · 2026Article
- Evaluation of migration analysis with AI-based CT-RSA and preoperative 3D-planning in total hip arthroplasty.Acta orthopaedica · 2025Article
- The full radiostereometric analysis migration pattern of tibial components is associated with aseptic loosening : introducing MTPMemax (MTPM estimated maximum).Bone & joint research · 2025Article
- Inducible displacement of cementless total knee arthroplasty components with conventional and weight-bearing CT-based radiostereometric analysis.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2025Article
- Comparison of Marker-Based RSA and CT-RSA for Analyzing Micromotions After Distal Radius Osteotomy: A 1-Year Retrospective Study of 24 Patients.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2025Article
- Accuracy and precision of Volumetric Matching Micromotion Analysis (V3MA) is similar to RSA for tibial component migration in TKA.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2025Article
- Article
- Pre-operative virtual three-dimensional planning for proximal humerus fractures: A proof-of-concept study.Shoulder & elbow · 2024Article
- Comparison between model-based RSA and an AI-based CT-RSA: an accuracy study of 30 patients.Acta orthopaedica · 2024Article
- CT-Based Micromotion Analysis After Locking Plate Fixation of AO Type C Distal Radius Fractures.Indian journal of orthopaedics · 2023Article
- Dose reduction does not impact the precision of CT-based RSA in tibial implants: a diagnostic accuracy study on precision in a porcine cadaver.Acta orthopaedica · 2023Article
- CT-based radiostereometric analysis for assessing midfoot kinematics: precision compared with marker-based radiostereometry.Acta orthopaedica · 2023Article
- CT-based migration analysis is more precise than radiostereometric analysis for tibial implants: a phantom study on a porcine cadaver.Acta orthopaedica · 2023Article
- Low dose CT-based spatial analysis (CTSA) to measure implant migration after ceramic hip resurfacing arthroplasty (HRA): A phantom study.Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine · 2023Article
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
background and purposeComputed tomography micromotion analysis (CTMA) can be used to determine implant micro-movements using low-dose CT scans. By using CTMA, a non-invasive measurement of joint implant movement is enabled. We evaluated the precision of CTMA in measuring early cup migration. Standard marker-based radiostereometric analysis (RSA) was used as reference. We hypothesised that CTMA can be used as an alternative to RSA in assessing implant micromotions. PATIENTS AND
methodsWe included 30 patients undergoing total hip arthroplasty (THA). Acetabular cup migration at 1 year was measured with RSA and CTMA. To determine the precision of both methods, 20 double examinations (postoperatively) with repositioning of the patients were performed. The precision was calculated from zero by assuming that there was no motion of the prosthesis between the 2 examinations.
resultsThe precision of RSA ranged from 0.06 to 0.15 mm for translations and 0.21° to 0.63° for rotations. Corresponding values for CTMA were 0.06 to 0.13 mm and 0.23° to 0.35°. A good level of agreement was found between the methods regarding cup migration and rotation at 1 year.
interpretationThe precision of CTMA in measuring acetabular cup migration and rotation is comparable to marker-based RSA. CTMA could possibly thus be used as an alternative method to detect early implant migration.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.