Wear of the acetabular socket: Comparison of polyacetat and polyethylene
DOI:
https://doi.org/10.3109/17453678608994373Abstract
Frictional characteristics of polyacetal (Delrin®) sockets and of ultra-high molecular weight polyethylene sockets retrieved in revision after aseptic loosening were compared with measurements of friction in new sockets. Friction in retrieved polyacetal sockets was twice as great as in retrieved polyethylene sockets. We also found that frictional characteristics of polyacetal changed as the material aged in vivo. In contrast, friction in polyethylene sockets remained fairly constant, even though most of them contained bone-cement particles. Friction in polyacetal sockets may be important for the relatively high incidence of socket loosening of the Christiansen prosthesis. Measurements of wear of the polyacetal sockets showed a mean annual dimensional change of 240 mm3, four times greater than that reported for the Charnley polyethylene acetabular prosthesis.Downloads
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Published
1986-01-01
How to Cite
Mathiesen, E. B., Lindgren, U., Reinholt, F. P., & Sudmann, E. (1986). Wear of the acetabular socket: Comparison of polyacetat and polyethylene. Acta Orthopaedica, 57(3), 193–196. https://doi.org/10.3109/17453678608994373
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Acta Orthopaedica (Scandinavica) content is available freely online as from volume 1, 1930. The journal owner owns the copyright for all material published until volume 80, 2009. As of June 2009, the journal has however been published fully Open Access, meaning the authors retain copyright to their work. As of June 2009, articles have been published under CC-BY-NC or CC-BY licenses, unless otherwise specified.
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