Sequentially Irradiated and Annealed Highly Cross-Linked Polyethylene: Linear Vector and Volumetric Wear in Total Hip Arthroplasty at 10 Years

Background: There is a paucity of data on the long-term performance of highly cross-linked polyethylene (HXLPE). Therefore, this study evaluated 10-year 1) functional, 2) radiographic, and 3) surgical outcomes in patients who underwent total hip arthroplasty with sequentially irradiated and annealed...

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Autores principales:	Ethan A. Remily, DO, Scott J. Douglas, MD, Oliver C. Sax, DO, MS, Sahir S. Pervaiz, MD, MS, Nequesha S. Mohamed, MD, Wayne A. Wilkie, DO, MHSA, Langan S. Smith, BS, James Nace, DO, Arthur L. Malkani, MD, Charles E. Jaggard, MS, Frank R. Kolisek, MD, Ronald E. Delanois, MD
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Wear HXLPE Survivorship THA Arthroplasty Functional Orthopedic surgery RD701-811
Acceso en línea:	https://doaj.org/article/39fd9ab3d30043ffa5a1eb29a94102eb
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spelling	oai:doaj.org-article:39fd9ab3d30043ffa5a1eb29a94102eb2021-11-14T04:33:55ZSequentially Irradiated and Annealed Highly Cross-Linked Polyethylene: Linear Vector and Volumetric Wear in Total Hip Arthroplasty at 10 Years2352-344110.1016/j.artd.2021.08.002https://doaj.org/article/39fd9ab3d30043ffa5a1eb29a94102eb2021-10-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2352344121001369https://doaj.org/toc/2352-3441Background: There is a paucity of data on the long-term performance of highly cross-linked polyethylene (HXLPE). Therefore, this study evaluated 10-year 1) functional, 2) radiographic, and 3) surgical outcomes in patients who underwent total hip arthroplasty with sequentially irradiated and annealed HXLPE. Methods: A retrospective, multicenter study was conducted on patients who underwent primary total hip arthroplasty and received HXLPE polymer (n = 151). Two-dimensional radiographic linear and volumetric wear analyses were quantified using the Martell Hip Analysis software, while functional outcomes were assessed by analyzing postoperative Short-Form-12 (SF-12) Physical and Mental Health Surveys and Harris Hip Scores. Radiographic outcomes included yearly linear (mm/y) and volumetric (mm3/y) wear rates. Surgical outcomes included additional operations and survivorship. Results: SF-12 scores were within 1 standard deviation (SD) of the normal population (SF-12 Physical: 47.0; SF-12 Mental: 52.0), while the Harris Hip Scores of 89.5 was borderline between “good” and “excellent.” Total and annual linear wear rates were 0.164 mm (SD: 0.199 mm) and 0.015 mm/y (SD: 0.018 mm/y), respectively. The mean total volumetric wear rate was 141.4 mm3 (SD: 165.0) and 12.6 mm3/y (SD: 14.9 mm3/y) when broken down into a yearly rate. Eleven patients required revisions, resulting in an all-cause polyethylene survivorship of 92.7%, with a polyethylene wear survivorship of 100.0%. Conclusions: Our results demonstrate clinically undetectable linear and volumetric wear rates after 10 years in those who received the unique sequentially irradiated and annealed HXLPE. Furthermore, high rates of survivorship coupled with low all-cause revision rates illustrate the polymers' capability to potentially increase implant longevity.Ethan A. Remily, DOScott J. Douglas, MDOliver C. Sax, DO, MSSahir S. Pervaiz, MD, MSNequesha S. Mohamed, MDWayne A. Wilkie, DO, MHSALangan S. Smith, BSJames Nace, DOArthur L. Malkani, MDCharles E. Jaggard, MSFrank R. Kolisek, MDRonald E. Delanois, MDElsevierarticleWearHXLPESurvivorshipTHAArthroplastyFunctionalOrthopedic surgeryRD701-811ENArthroplasty Today, Vol 11, Iss , Pp 140-145 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Wear HXLPE Survivorship THA Arthroplasty Functional Orthopedic surgery RD701-811
spellingShingle	Wear HXLPE Survivorship THA Arthroplasty Functional Orthopedic surgery RD701-811 Ethan A. Remily, DO Scott J. Douglas, MD Oliver C. Sax, DO, MS Sahir S. Pervaiz, MD, MS Nequesha S. Mohamed, MD Wayne A. Wilkie, DO, MHSA Langan S. Smith, BS James Nace, DO Arthur L. Malkani, MD Charles E. Jaggard, MS Frank R. Kolisek, MD Ronald E. Delanois, MD Sequentially Irradiated and Annealed Highly Cross-Linked Polyethylene: Linear Vector and Volumetric Wear in Total Hip Arthroplasty at 10 Years
description	Background: There is a paucity of data on the long-term performance of highly cross-linked polyethylene (HXLPE). Therefore, this study evaluated 10-year 1) functional, 2) radiographic, and 3) surgical outcomes in patients who underwent total hip arthroplasty with sequentially irradiated and annealed HXLPE. Methods: A retrospective, multicenter study was conducted on patients who underwent primary total hip arthroplasty and received HXLPE polymer (n = 151). Two-dimensional radiographic linear and volumetric wear analyses were quantified using the Martell Hip Analysis software, while functional outcomes were assessed by analyzing postoperative Short-Form-12 (SF-12) Physical and Mental Health Surveys and Harris Hip Scores. Radiographic outcomes included yearly linear (mm/y) and volumetric (mm3/y) wear rates. Surgical outcomes included additional operations and survivorship. Results: SF-12 scores were within 1 standard deviation (SD) of the normal population (SF-12 Physical: 47.0; SF-12 Mental: 52.0), while the Harris Hip Scores of 89.5 was borderline between “good” and “excellent.” Total and annual linear wear rates were 0.164 mm (SD: 0.199 mm) and 0.015 mm/y (SD: 0.018 mm/y), respectively. The mean total volumetric wear rate was 141.4 mm3 (SD: 165.0) and 12.6 mm3/y (SD: 14.9 mm3/y) when broken down into a yearly rate. Eleven patients required revisions, resulting in an all-cause polyethylene survivorship of 92.7%, with a polyethylene wear survivorship of 100.0%. Conclusions: Our results demonstrate clinically undetectable linear and volumetric wear rates after 10 years in those who received the unique sequentially irradiated and annealed HXLPE. Furthermore, high rates of survivorship coupled with low all-cause revision rates illustrate the polymers' capability to potentially increase implant longevity.
format	article
author	Ethan A. Remily, DO Scott J. Douglas, MD Oliver C. Sax, DO, MS Sahir S. Pervaiz, MD, MS Nequesha S. Mohamed, MD Wayne A. Wilkie, DO, MHSA Langan S. Smith, BS James Nace, DO Arthur L. Malkani, MD Charles E. Jaggard, MS Frank R. Kolisek, MD Ronald E. Delanois, MD
author_facet	Ethan A. Remily, DO Scott J. Douglas, MD Oliver C. Sax, DO, MS Sahir S. Pervaiz, MD, MS Nequesha S. Mohamed, MD Wayne A. Wilkie, DO, MHSA Langan S. Smith, BS James Nace, DO Arthur L. Malkani, MD Charles E. Jaggard, MS Frank R. Kolisek, MD Ronald E. Delanois, MD
author_sort	Ethan A. Remily, DO
title	Sequentially Irradiated and Annealed Highly Cross-Linked Polyethylene: Linear Vector and Volumetric Wear in Total Hip Arthroplasty at 10 Years
title_short	Sequentially Irradiated and Annealed Highly Cross-Linked Polyethylene: Linear Vector and Volumetric Wear in Total Hip Arthroplasty at 10 Years
title_full	Sequentially Irradiated and Annealed Highly Cross-Linked Polyethylene: Linear Vector and Volumetric Wear in Total Hip Arthroplasty at 10 Years
title_fullStr	Sequentially Irradiated and Annealed Highly Cross-Linked Polyethylene: Linear Vector and Volumetric Wear in Total Hip Arthroplasty at 10 Years
title_full_unstemmed	Sequentially Irradiated and Annealed Highly Cross-Linked Polyethylene: Linear Vector and Volumetric Wear in Total Hip Arthroplasty at 10 Years
title_sort	sequentially irradiated and annealed highly cross-linked polyethylene: linear vector and volumetric wear in total hip arthroplasty at 10 years
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/39fd9ab3d30043ffa5a1eb29a94102eb
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Sequentially Irradiated and Annealed Highly Cross-Linked Polyethylene: Linear Vector and Volumetric Wear in Total Hip Arthroplasty at 10 Years

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