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Observed effect of femoral component undersizing and a collarless design in the development of radiolucent lines in cementless total hip arthroplasty
BACKGROUND: The objective of this study was to determine the prevalence of radiolucent lines (RLLs) around the femoral component in a cohort of patients who underwent well-functioning cementless total hip arthroplasty (THA). METHODS: A cohort of unrevised Corail (DePuy Synthes, Raynham, MA) femoral...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7083744/ https://www.ncbi.nlm.nih.gov/pubmed/32211484 http://dx.doi.org/10.1016/j.artd.2019.11.009 |
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author | Magill, Paul Hill, Janet O’Brien, Seamus Stevenson, Michael Machenaud, Alain Beverland, David |
author_facet | Magill, Paul Hill, Janet O’Brien, Seamus Stevenson, Michael Machenaud, Alain Beverland, David |
author_sort | Magill, Paul |
collection | PubMed |
description | BACKGROUND: The objective of this study was to determine the prevalence of radiolucent lines (RLLs) around the femoral component in a cohort of patients who underwent well-functioning cementless total hip arthroplasty (THA). METHODS: A cohort of unrevised Corail (DePuy Synthes, Raynham, MA) femoral components (n = 636) were analyzed at a median follow-up of 6.0 years (interquartile range: 5.2-6.8) with the Oxford Hip Score (OHS) and radiographs. Two independent observers assessed the radiographs for the presence of RLLs. RESULTS: The overall prevalence of RLLs in zone 7 was 13% (83/636). Patients with RLLs in zone 7 had an average OHS of 40.3 (15-48), and those who did not have RLLs in zone 7 had an average OHS of 38 (6-48), P = .07. Both groups had an average pain score of 1.6 out of 5, P = .5. The prevalence of RLLs in zone 7 was much less in the collared femoral components (2.6% prevalence) than in the collarless components (23.6% prevalence), but there was heterogeneity between these 2 groups preventing comparison. Logistic regression analysis of only the collarless components identified undersizing as the only predictive (odds ratio = 2.6) factor for RLL development in zone 7. CONCLUSIONS: Undersizing the Corail stem is strongly predictive of developing RLLs in zone 7. Preoperative templating for the appropriate size is critical. We observed more RLLs in zone 7 with the collarless design Corail, but a comparison study with the same bearing couple is needed to investigate this further. |
format | Online Article Text |
id | pubmed-7083744 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-70837442020-03-24 Observed effect of femoral component undersizing and a collarless design in the development of radiolucent lines in cementless total hip arthroplasty Magill, Paul Hill, Janet O’Brien, Seamus Stevenson, Michael Machenaud, Alain Beverland, David Arthroplast Today Original Research BACKGROUND: The objective of this study was to determine the prevalence of radiolucent lines (RLLs) around the femoral component in a cohort of patients who underwent well-functioning cementless total hip arthroplasty (THA). METHODS: A cohort of unrevised Corail (DePuy Synthes, Raynham, MA) femoral components (n = 636) were analyzed at a median follow-up of 6.0 years (interquartile range: 5.2-6.8) with the Oxford Hip Score (OHS) and radiographs. Two independent observers assessed the radiographs for the presence of RLLs. RESULTS: The overall prevalence of RLLs in zone 7 was 13% (83/636). Patients with RLLs in zone 7 had an average OHS of 40.3 (15-48), and those who did not have RLLs in zone 7 had an average OHS of 38 (6-48), P = .07. Both groups had an average pain score of 1.6 out of 5, P = .5. The prevalence of RLLs in zone 7 was much less in the collared femoral components (2.6% prevalence) than in the collarless components (23.6% prevalence), but there was heterogeneity between these 2 groups preventing comparison. Logistic regression analysis of only the collarless components identified undersizing as the only predictive (odds ratio = 2.6) factor for RLL development in zone 7. CONCLUSIONS: Undersizing the Corail stem is strongly predictive of developing RLLs in zone 7. Preoperative templating for the appropriate size is critical. We observed more RLLs in zone 7 with the collarless design Corail, but a comparison study with the same bearing couple is needed to investigate this further. Elsevier 2020-01-06 /pmc/articles/PMC7083744/ /pubmed/32211484 http://dx.doi.org/10.1016/j.artd.2019.11.009 Text en © 2019 The Authors http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Original Research Magill, Paul Hill, Janet O’Brien, Seamus Stevenson, Michael Machenaud, Alain Beverland, David Observed effect of femoral component undersizing and a collarless design in the development of radiolucent lines in cementless total hip arthroplasty |
title | Observed effect of femoral component undersizing and a collarless design in the development of radiolucent lines in cementless total hip arthroplasty |
title_full | Observed effect of femoral component undersizing and a collarless design in the development of radiolucent lines in cementless total hip arthroplasty |
title_fullStr | Observed effect of femoral component undersizing and a collarless design in the development of radiolucent lines in cementless total hip arthroplasty |
title_full_unstemmed | Observed effect of femoral component undersizing and a collarless design in the development of radiolucent lines in cementless total hip arthroplasty |
title_short | Observed effect of femoral component undersizing and a collarless design in the development of radiolucent lines in cementless total hip arthroplasty |
title_sort | observed effect of femoral component undersizing and a collarless design in the development of radiolucent lines in cementless total hip arthroplasty |
topic | Original Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7083744/ https://www.ncbi.nlm.nih.gov/pubmed/32211484 http://dx.doi.org/10.1016/j.artd.2019.11.009 |
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