ArticleActa orthopaedica2020
Low-dose CT-based implant motion analysis is a precise tool for early migration measurements of hip cups: a clinical study of 24 patients.
Article in Acta orthopaedica, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 3 registered trials, which are not on this map. Cited by 36 papers, 1 of them a synthesis that pooled it.
What it found
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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.
Accuracy of the CT-Implant Movement Analysis. A Feasibility Study.
Inducible Displacements of the Sacroiliac Joint Measured With CTMA
Assessment of Bone Displacement Under Loading Following Periprosthetic Fracture Repair With Weight-Bearing CT
Who cites it
36 citing papers in PubMed, 1 synthesis or guideline pooled it, 44 citations in OpenAlex.
- The accuracy and precision of CT-RSA in arthroplasty: a systematic review and meta-analysis.Acta orthopaedica · 2025Pooled it
- Dose reduction does not impact precision of CT-RSA in tibial components in total knee arthroplasty: a randomized controlled trial.Journal of orthopaedic surgery and research · 2026Trial
- CT Motion-Analysis of Implant Loosening in Total Wrist Arthroplasty: A Pilot Study.Journal of wrist surgery · 2026Article
- Assessment of Custom-Made Acetabular Implants for Complex Revision Total Hip Arthroplasty: A Concise Follow-up, at a Minimum of 5 Years.The Journal of bone and joint surgery. American volume · 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
- CT-Based Radiostereometric Analysis: A Promising Alternative to Conventional Radiostereometric Analysis in Determining Polyethylene Wear in Total Hip Arthroplasty.Advances in orthopedics · 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
- Evaluation of migration analysis with AI-based CT-RSA and preoperative 3D-planning in total hip arthroplasty.Acta orthopaedica · 2025Article
- Precision evaluation of 2 CT-based radiostereometric analysis systems in a cadaver study.Acta orthopaedica · 2025Article
- Provocation CT-Based Analysis for Diagnosis of Hip and Knee Arthroplasty Aseptic Loosening: Where Are We at? A Systematic Review of Clinical Trials.Journal of clinical medicine · 2025Review
- 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
- 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
- Evaluation of conventional and CT-based radiostereometric analysis for inducible displacement measurements after total hip arthroplasty.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2025Article
- Clinical, Radiographic, and Patient-Perceived Outcome After Radial Hemi-Wrist Arthroplasty With a New Implant: 20 Cases With 5-Year Follow-up.Hand (New York, N.Y.) · 2024Article
- Guideline for RSA and CT-RSA implant migration measurements: an update of standardizations and recommendations.Acta orthopaedica · 2024Article
- Verification of the accuracy of dynamic navigation for conventional and mouthpiece methods: in vivo study.BMC oral health · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors at 6 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background and purpose - Early implant migration is known to be a predictive factor of clinical loosening in total hip arthroplasty (THA). Radiostereometric analysis (RSA) is the gold standard used to measure early migration in patients. However, RSA requires costly, specialized imaging equipment and the image process is complex. We determined the precision of an alternative, commercially available, CT method in 3 ongoing clinical THA studies, comprising 3 different cups.Materials and methods - 24 CT double examinations of 24 hip cups were selected consecutively from 3 ongoing prospective studies: 2 primary THA (1 cemented and 1 uncemented) and 1 THA (cemented) revision study. Precision of the CT-based implant motion analysis (CTMA) system was calculated separately for each study, using both the surface anatomy of the pelvis and metal beads placed in the pelvis.Results - For the CTMA analysis using the surface anatomy of the pelvis, the precision ranged between 0.07 and 0.31 mm in translation and 0.20° and 0.39° for rotation, respectively. For the CTMA analysis using beads the precision ranged between 0.08 and 0.20 mm in translation and between 0.20° and 0.43° for rotations. The radiation dose ranged between 0.2 and 2.3 mSv.Interpretation - CTMA achieved a clinically relevant and consistent precision between the 3 different hip cups studied. The use of different hip cup types, different CT scanners, or registration method (beads or surface anatomy) had no discernible effect on precision. Therefore, CTMA without the use of bone markers could potentially be an alternative to RSA to measure early 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.