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The diagnostic potential of low-field MRI in problematic total knee arthroplasties - a feasibility study
PURPOSE: Low-field MRI, allowing imaging in supine and weight-bearing position, may be utilized as a non-invasive and affordable tool to differentiate between causes of dissatisfaction after TKA (‘problematic TKA’). However, it remains unclear whether low-field MRI results in sufficient image qualit...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Springer Berlin Heidelberg
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7394973/ https://www.ncbi.nlm.nih.gov/pubmed/32737621 http://dx.doi.org/10.1186/s40634-020-00274-2 |
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author | Schröder, Femke F. Post, Corine E. van Raak, Sjoerd M. Simonis, Frank F. J. Wagenaar, Frank-Christiaan B. M. Huis in’t Veld, Rianne M. H. A. Verdonschot, Nico |
author_facet | Schröder, Femke F. Post, Corine E. van Raak, Sjoerd M. Simonis, Frank F. J. Wagenaar, Frank-Christiaan B. M. Huis in’t Veld, Rianne M. H. A. Verdonschot, Nico |
author_sort | Schröder, Femke F. |
collection | PubMed |
description | PURPOSE: Low-field MRI, allowing imaging in supine and weight-bearing position, may be utilized as a non-invasive and affordable tool to differentiate between causes of dissatisfaction after TKA (‘problematic TKA’). However, it remains unclear whether low-field MRI results in sufficient image quality with limited metal artefacts. Therefore, this feasibility study explored the diagnostic value of low-field MRI concerning pathologies associated with problematic TKA’s’ by comparing low-field MRI findings with CT and surgical findings. Secondly, differences in patellofemoral parameters between supine and weight-bearing low-field MRI were evaluated. METHODS: Eight patients with a problematic TKA were scanned using low-field MRI in weight-bearing and supine conditions. Six of these patients underwent revision surgery. Scans were analysed by a radiologist for pathologies associated with a problematic TKA. Additional patellofemoral and alignment parameters were measured by an imaging expert. MRI observations were compared to those obtained with CT, the diagnosis based on the clinical work-up, and findings during revision surgery. RESULTS: MRI observations of rotational malalignment, component loosening and patellofemoral arthrosis were comparable with the clinical diagnosis (six out of eight) and were confirmed during surgery (four out of six). All MRI observations were in line with CT findings (seven out of seven). Clinical diagnosis and surgical findings of collateral excessive laxity could not be confirmed with MRI (two out of eight). CONCLUSION: Low-field MRI shows comparable diagnostic value as CT and might be a future low cost and ionizing radiation free alternative. Differences between supine and weight-bearing MRI did not yield clinically relevant information. The study was approved by the Medical Research Ethics Committees of Twente (Netherlands Trial Register: Trial NL7009 (NTR7207). Registered 5 March 2018, https://www.trialregister.nl/trial/7009). |
format | Online Article Text |
id | pubmed-7394973 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Springer Berlin Heidelberg |
record_format | MEDLINE/PubMed |
spelling | pubmed-73949732020-08-18 The diagnostic potential of low-field MRI in problematic total knee arthroplasties - a feasibility study Schröder, Femke F. Post, Corine E. van Raak, Sjoerd M. Simonis, Frank F. J. Wagenaar, Frank-Christiaan B. M. Huis in’t Veld, Rianne M. H. A. Verdonschot, Nico J Exp Orthop Original Paper PURPOSE: Low-field MRI, allowing imaging in supine and weight-bearing position, may be utilized as a non-invasive and affordable tool to differentiate between causes of dissatisfaction after TKA (‘problematic TKA’). However, it remains unclear whether low-field MRI results in sufficient image quality with limited metal artefacts. Therefore, this feasibility study explored the diagnostic value of low-field MRI concerning pathologies associated with problematic TKA’s’ by comparing low-field MRI findings with CT and surgical findings. Secondly, differences in patellofemoral parameters between supine and weight-bearing low-field MRI were evaluated. METHODS: Eight patients with a problematic TKA were scanned using low-field MRI in weight-bearing and supine conditions. Six of these patients underwent revision surgery. Scans were analysed by a radiologist for pathologies associated with a problematic TKA. Additional patellofemoral and alignment parameters were measured by an imaging expert. MRI observations were compared to those obtained with CT, the diagnosis based on the clinical work-up, and findings during revision surgery. RESULTS: MRI observations of rotational malalignment, component loosening and patellofemoral arthrosis were comparable with the clinical diagnosis (six out of eight) and were confirmed during surgery (four out of six). All MRI observations were in line with CT findings (seven out of seven). Clinical diagnosis and surgical findings of collateral excessive laxity could not be confirmed with MRI (two out of eight). CONCLUSION: Low-field MRI shows comparable diagnostic value as CT and might be a future low cost and ionizing radiation free alternative. Differences between supine and weight-bearing MRI did not yield clinically relevant information. The study was approved by the Medical Research Ethics Committees of Twente (Netherlands Trial Register: Trial NL7009 (NTR7207). Registered 5 March 2018, https://www.trialregister.nl/trial/7009). Springer Berlin Heidelberg 2020-07-31 /pmc/articles/PMC7394973/ /pubmed/32737621 http://dx.doi.org/10.1186/s40634-020-00274-2 Text en © The Author(s) 2020 Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Original Paper Schröder, Femke F. Post, Corine E. van Raak, Sjoerd M. Simonis, Frank F. J. Wagenaar, Frank-Christiaan B. M. Huis in’t Veld, Rianne M. H. A. Verdonschot, Nico The diagnostic potential of low-field MRI in problematic total knee arthroplasties - a feasibility study |
title | The diagnostic potential of low-field MRI in problematic total knee arthroplasties - a feasibility study |
title_full | The diagnostic potential of low-field MRI in problematic total knee arthroplasties - a feasibility study |
title_fullStr | The diagnostic potential of low-field MRI in problematic total knee arthroplasties - a feasibility study |
title_full_unstemmed | The diagnostic potential of low-field MRI in problematic total knee arthroplasties - a feasibility study |
title_short | The diagnostic potential of low-field MRI in problematic total knee arthroplasties - a feasibility study |
title_sort | diagnostic potential of low-field mri in problematic total knee arthroplasties - a feasibility study |
topic | Original Paper |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7394973/ https://www.ncbi.nlm.nih.gov/pubmed/32737621 http://dx.doi.org/10.1186/s40634-020-00274-2 |
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