Characteristics of polyethylene wear particles isolated from synovial fluid after mobile-bearing and posterior-stabilized total knee arthroplasties

Journal of Biomedical Materials Research. Part B, Applied Biomaterials
Yukihide MinodaKunio Takaoka

Abstract

The size, shape, and number of polyethylene wear particles found in synovial fluids of patients 1 year after implantation of 22 well-functioning total knee prostheses (11 contemporary mobile-bearing type, 11 posterior-stabilized type) were determined. Polyethylene wear particles were isolated from synovial fluids and examined by scanning electron microscopy. Particle size (equivalent circle diameter) was 0.81 +/- 0.12 microm (mean +/- standard error) in mobile-bearing types and 0.78 +/- 0.08 microm in posterior-stabilized types. Particle shape (aspect ratio) was 1.94 +/- 0.13 in mobile-bearing types and 2.30 +/- 0.22 in posterior-stabilized types. Total numbers of particles were (1.75 +/- 1.02) x 10(8) in mobile-bearing and (1.16 +/- 0.57) x 10(8) in posterior-stabilized types. The differences in these parameters between the two groups were not statistically significant. In the early stages after surgery, contemporary mobile-bearing types were comparable to posterior-stabilized types in terms of polyethylene wear-particle generation. The present results do not support the proposition that has been put forward in the literature; namely, that the contemporary mobile-bearing design has an advantage, in terms of the polyethylene we...Continue Reading

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May 29, 2003·Clinical Orthopaedics and Related Research·Yukihide MinodaKunio Takaoka

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Citations

Nov 21, 2008·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Masahiro HasegawaAtsumasa Uchida
Oct 24, 2009·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Toby O SmithCaroline B Hing
Dec 1, 2009·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Tae Kyun KimSang Cheol Seong
Oct 22, 2013·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Yukihide MinodaHiroaki Nakamura
Jan 17, 2012·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Shennah AustenAndré van Ooij
Feb 6, 2016·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Yukihide MinodaHiroaki Nakamura
May 12, 2009·The Journal of Arthroplasty·Gerard A EnghC Anderson Engh
Jul 29, 2009·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Kentaro IwakiriKunio Takaoka
Dec 3, 2014·Acta Biomaterialia·Jörn ReindersJan Philippe Kretzer
Aug 23, 2006·Clinical Orthopaedics and Related Research·Douglas A Dennis, Richard D Komistek
Nov 5, 2014·Clinical Orthopaedics and Related Research·Sai Y VeruvaMarla J Steinbeck
Dec 2, 2009·Clinical Orthopaedics and Related Research·Young-Hoo KimKwang-Hoon Lee
Oct 7, 2015·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Anna Di LauraAlister J Hart

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