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Oxidation Prevention with Vitamin E in a HXLPE Isoelastic Monoblock Pressfit Cup: Preliminary Results

  • Martin Beck
  • Daniel Delfosse
  • Reto Lerf
  • Roland Becker
  • Gary French
  • Lutz Hollmann
  • Karl Knahr
  • Helmy Naeder
  • Eric Meijer
  • Philipp Rehbein
  • Joseph Baines
  • Vincent Steenmeijer
  • Arthur de Gast
Chapter

Abstract

The first vitamin-doped HXLPE materials were recently introduced into clinical practice. The protection of HXLPE with vitamin E leads to excellent oxidation resistance. It has a number of important benefits for the material properties, most importantly, the effective prevention of any loss of toughness over the entire life span of the implant. The wear rates of hip simulator testing remain very low even when the implants are subjected to accelerated ageing up to times corresponding to 40 years in vivo.

This paper is the first to report on the clinical performance of vitamin E-blended HXLPE hip implants. From a cohort of 553 cases (528 patients), a 1-year follow-up is available for 164 cases. All patients showed stable implant fixation during the last follow-up performed. There was no sign of early loosening of the cup.

Keywords

Wear Rate Accelerate Ageing Ceramic Head Excellent Oxidation Resistance Ball Head 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© EFORT 2012

Authors and Affiliations

  • Martin Beck
    • 1
  • Daniel Delfosse
    • 2
  • Reto Lerf
    • 2
  • Roland Becker
    • 3
  • Gary French
    • 4
  • Lutz Hollmann
    • 5
  • Karl Knahr
    • 6
  • Helmy Naeder
    • 7
  • Eric Meijer
    • 8
  • Philipp Rehbein
    • 9
  • Joseph Baines
    • 10
  • Vincent Steenmeijer
    • 11
  • Arthur de Gast
    • 12
  1. 1.Clinic for Orthopaedic SurgeryLuzerner KantonsspitalLucerneSwitzerland
  2. 2.Innovation GroupMathys Ltd BettlachBettlachSwitzerland
  3. 3.Orthopàdic und UnfallchirwgicStädtisches Klinikum Brandenburg GmbHBrandenburgGermany
  4. 4.Orthopaedic DepartmentOrmiston OrthopaedicsManukauNew Zealand
  5. 5.Orthopaedic DepartmentStreekziekenhuis Koningin BeatrixWinterswijkThe Netherlands
  6. 6.Orthopaedic DepartmentOrthopädisches Spital Speising GmbHViennaAustria
  7. 7.Orthopaedic DepartmentBürgerspital SolothurnSolothurnSwitzerland
  8. 8.Orthopaedic DepartmentZiekenhuis AmstellandAmstelveenThe Netherlands
  9. 9.Orthopaedic DepartmentSt. Josefs-HospitalWiesbadenGermany
  10. 10.Orthopaedic DepartmentGolden Jubilee National HospitalClydebankScotland
  11. 11.Orthopaedic DepartmentZiekenhuis BronovoDen HaagThe Netherlands
  12. 12.Orthopaedic DepartmentDiakonessenhuis Utrecht/ZeistUtrechtThe Netherlands

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