In vitro initial fixation of porous-coated acetabular total hip components. A biomechanical comparative study.

Journal Article (Journal Article)

Two-phase in vitro testing was performed to determine the initial mechanical stability of uncemented but fixed porous coated acetabular components. Six each of three-screw fixation, two-peg fixation, and three-spike fixation porous acetabular components were implanted into fresh and embalmed human cadaver acetabula. Measurement of prosthesis-bone displacement at a load of 100 kg did not show a significant difference among the three methods of fixation. However, torque testing showed that three-screw fixation failed at significantly higher loads (46 N-m) than two-peg fixation (32 N-m) or three-spike fixation (32 N-m).

Full Text

Duke Authors

Cited Authors

  • Lachiewicz, PF; Suh, PB; Gilbert, JA

Published Date

  • September 1989

Published In

Volume / Issue

  • 4 / 3

Start / End Page

  • 201 - 205

PubMed ID

  • 2795026

International Standard Serial Number (ISSN)

  • 0883-5403

Digital Object Identifier (DOI)

  • 10.1016/s0883-5403(89)80015-4


  • eng

Conference Location

  • United States