Guideline for RSA and CT-RSA implant migration measurements: an update of standardizations and recommendations

BL Kaptein, B Pijls, L Koster, J Kärrholm… - Acta …, 2024 - pmc.ncbi.nlm.nih.gov
Opening remarks—These guidelines are the result of discussions within a diverse group of
RSA researchers. They were approved in December 2023 by the board and selected …

Precision of CT-based micromotion analysis is comparable to radiostereometry for early migration measurements in cemented acetabular cups

C Brodén, O Sandberg, H Olivecrona, R Emery… - Acta …, 2021 - Taylor & Francis
Background and purpose—CT (computed tomography) based methods have lately been
considered an alternative to radiostereometry (RSA) for assessing early implant migration …

Hip prosthetic loosening: A very personal review

B Mjöberg - World journal of orthopedics, 2021 - pmc.ncbi.nlm.nih.gov
Hip prosthetic loosening is often difficult to detect at an early stage, and there has been
uncertainty for a long time as to when the loosening occurs and thus to the basic causes. By …

CT-based migration analysis is more precise than radiostereometric analysis for tibial implants: a phantom study on a porcine cadaver

LHW Engseth, A Schulz, AH Pripp… - Acta …, 2023 - pmc.ncbi.nlm.nih.gov
Background and purpose Radiostereometric analysis (RSA) is the gold standard for
migration analysis, but computed tomography analysis methods (CTRSA) have shown …

Precision of low-dose CT-based micromotion analysis technique for the assessment of early acetabular cup migration compared with gold standard RSA: a …

V Angelomenos, M Mohaddes, R Itayem… - Acta …, 2022 - pmc.ncbi.nlm.nih.gov
Background and purpose Computed tomography micromotion analysis (CTMA) can be used
to determine implant micro-movements using low-dose CT scans. By using CTMA, a non …

Comparison between model-based RSA and an AI-based CT-RSA: an accuracy study of 30 patients

A Christensson, HM Nemati, G Flivik - Acta Orthopaedica, 2024 - pmc.ncbi.nlm.nih.gov
Background and purpose Radiostereometry (RSA) is the current gold standard for
evaluating early implant migration. CT-based migration analysis is a promising method, with …

Inducible displacement of cementless total knee arthroplasty components with conventional and weight‐bearing CT‐based radiostereometric analysis

RA Hext, BL Kaptein, JL Howard… - Journal of …, 2024 - Wiley Online Library
Aseptic loosening remains one of the top causes of revision surgery of total knee
arthroplasty (TKA). Radiostereometric analysis (RSA) is used in research to measure …

Dose reduction does not impact the precision of CT-based RSA in tibial implants: a diagnostic accuracy study on precision in a porcine cadaver

Ø Frank-David, LHW Engseth, AH Pripp… - Acta …, 2023 - pmc.ncbi.nlm.nih.gov
Background and purpose Radiostereometric analysis (RSA) is the gold standard for
evaluation of migration of implants. CT-RSA has been shown to have precision at the level …

The anatomical SP-CL stem demonstrates a non-progressing migration pattern in the first year: a low dose CT-based migration study in 20 patients

O Sandberg, S Tholén, S Carlsson… - Acta …, 2020 - Taylor & Francis
Background and purpose—RSA is the gold standard for evaluation of early implant
migration. We report the results of a new CT-based method Sectra CT micromotion analysis …

Accuracy and precision of Volumetric Matching Micromotion Analysis (V3MA) is similar to RSA for tibial component migration in TKA

NN de Laat, LA Koster, BC Stoel… - Journal of …, 2025 - Wiley Online Library
Radiostereometric analysis (RSA) is the current gold standard to determine implant
migration, but it requires bone markers and special equipment. Therefore, we developed …