Relationship Between Gravimetric Wear and Particle Generation in Hip Simulators: Conventional...

Relationship Between Gravimetric Wear and Particle Generation in Hip Simulators: Conventional Compared

with Cross-Linked Polyethylene

by Michael D. Ries, Marcus L. Scott, and Shilesh Jani

J Bone Joint Surg AmVolume 83(2 suppl 2):S116-122

November 1, 2001

Display of particle analysis.

Michael D. Ries et al. J Bone Joint Surg Am 2001;83:S116-122

Gravimetric wear testing showed a significant improvement in wear as the level of radiation increased.

Particle-generation rates did not correlate with gravimetric wear rates.

Particles of nonirradiated, ethylene-oxide-sterilized ultra-high molecular weight polyethylene (10,000).

Particles of inert-gas gamma-irradiated ultra-high molecular weight polyethylene (10,000).

Particles of highly cross-linked ultra-high molecular weight polyethylene subjected to 5 Mrad of gamma irradiation (10,000).

Particles of highly cross-linked ultra-high molecular weight polyethylene subjected to 10 Mrad of gamma irradiation (10,000).

Particle size histogram.

Particle surface area versus size histogram.

Particle volume versus size histogram.

Total wear volume per Mcycle of particles generated from each type of liner.

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