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).
- Lachiewicz, PF; Suh, PB; Gilbert, JA
- September 1989
Volume / Issue
- 4 / 3
Start / End Page
- 201 - 205
International Standard Serial Number (ISSN)
Digital Object Identifier (DOI)
- United States