Frictional and bone ingrowth properties of engineered surface topographies produced by electron beam technology

J. Elizabeth Biemond*, Rene Aquarius, Nico Verdonschot, Pieter Buma

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

50 Citations (Scopus)
51 Downloads (Pure)

Abstract

Background: Electron beam melting (E-beam) is a new technology to produce 3-dimensional surface topographies for cementless orthopedic implants.

Methods: The friction coefficients of two newly developed E-beam produced surface topographies were in vitro compared with sandblasted E-beam and titanium plasma sprayed controls. Bone ingrowth (direct bone–implant contact) was determined by implanting the samples in the femoral condyles of 6 goats for a period of 6 weeks.

Results: Friction coefficients of the new structures were comparable to the titanium plasma sprayed control. The direct bone–implant contact was 23.9 and 24.5% for the new surface structures. Bone–implant contact of the sandblasted and titanium plasma sprayed control was 18.2 and 25.5%, respectively.

Conclusions: The frictional and bone ingrowth properties of the E-beam produced surface structures are similar to the plasma-sprayed control. However, since the maximal bone ingrowth had not been reached for the E-beam structures during the relatively short-term period, longer-term follow-up studies are needed to assess whether the E-beam structures lead to a better long-term performance than surfaces currently in use, such as titanium plasma spray coating
Original languageEnglish
Pages (from-to)711-718
Number of pages8
JournalArchives of orthopeadic and trauma surgery
Volume131
Issue number5
DOIs
Publication statusPublished - 2011

Keywords

  • Electron beam melting
  • Bone ingrowth
  • Friction
  • Surface characteristics
  • Prosthesis

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