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Comparison of antibiotic release from polymethylmethacrylate beads and sponge collagen

Comparison of antibiotic release from polymethylmethacrylate beads and sponge collagen The rates of elution of tobramycin in vitro were compared for polymethylmethacrylate beads impregnated with the powder form and an alternative biodegradable substance, sponge collagen. The impregnated polymethylmethacrylate beads initially had a lower zone of inhibition, but the rate of release was slow in comparison with that of the impregnated sponge collagen. The sponge collagen delivered a higher dose faster and with a shorter duration than the polymethylmethacrylate beads with the same antibiotic concentration in vitro, but the beads delivered a therapeutic concentration for longer periods. Because it deteriorates rapidly, sponge collagen may be unsatisfactory as an agent of antibiotic delivery in patients who have chronic osteomyelitis; however, it may be useful for patients who have acute trauma with highly contaminated bone or soft tissue, or during hemiarthroplasty revision, to deliver a high local concentration of antibiotic for a short period of time. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Orthopaedic Research Wiley

Comparison of antibiotic release from polymethylmethacrylate beads and sponge collagen

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References (25)

Publisher
Wiley
Copyright
Copyright © 1994 The Orthopaedic Research Society
ISSN
0736-0266
eISSN
1554-527X
DOI
10.1002/jor.1100120517
pmid
7931791
Publisher site
See Article on Publisher Site

Abstract

The rates of elution of tobramycin in vitro were compared for polymethylmethacrylate beads impregnated with the powder form and an alternative biodegradable substance, sponge collagen. The impregnated polymethylmethacrylate beads initially had a lower zone of inhibition, but the rate of release was slow in comparison with that of the impregnated sponge collagen. The sponge collagen delivered a higher dose faster and with a shorter duration than the polymethylmethacrylate beads with the same antibiotic concentration in vitro, but the beads delivered a therapeutic concentration for longer periods. Because it deteriorates rapidly, sponge collagen may be unsatisfactory as an agent of antibiotic delivery in patients who have chronic osteomyelitis; however, it may be useful for patients who have acute trauma with highly contaminated bone or soft tissue, or during hemiarthroplasty revision, to deliver a high local concentration of antibiotic for a short period of time.

Journal

Journal of Orthopaedic ResearchWiley

Published: Sep 1, 1994

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