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Vet Comp Orthop Traumatol 1998; 11(02): 94-99
DOI: 10.1055/s-0038-1632617
Clinical Report
Schattauer GmbH

Clinical Response to Antibiotic Impregnated Polymethyl Methacrylate Bead Implantation of Dogs with Severe Infections after Limb Sparing and Allograft Replacement -18 Cases (1994-1996)

W. S. Dernell
1   From the Comparative Oncology Unit, Departments of Veterinary Clinical Sciences, Denver, Colorado, USA
,
S. J. Withrow
1   From the Comparative Oncology Unit, Departments of Veterinary Clinical Sciences, Denver, Colorado, USA
,
R. C. Straw
1   From the Comparative Oncology Unit, Departments of Veterinary Clinical Sciences, Denver, Colorado, USA
,
B. E. Powers
2   Pathology, Denver, Colorado, USA
,
E. W. Wember
1   From the Comparative Oncology Unit, Departments of Veterinary Clinical Sciences, Denver, Colorado, USA
,
V. J. Jameson
1   From the Comparative Oncology Unit, Departments of Veterinary Clinical Sciences, Denver, Colorado, USA
,
R. M. Wilkins
3   Colorado State University, College of Veterinary Medicine and Biomedical Sciences, Fort Collins, Colorado and the Denver Orthopedic Clinic and Institute for Limb Preservation, Denver, Colorado, USA
,
R. E. Allen
3   Colorado State University, College of Veterinary Medicine and Biomedical Sciences, Fort Collins, Colorado and the Denver Orthopedic Clinic and Institute for Limb Preservation, Denver, Colorado, USA
› Author Affiliations
Further Information

Publication History

Received 07 July 1997

Accepted 03 October 1997

Publication Date:
10 February 2018 (online)

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Summary

Successful treatment of severe orthopaedic infections in people and animals has been augmented by the use of antibiotic impregnated polymethyl methacrylate (PMMA) bead implantation at the site of infection. High local wound concentrations of antimicrobials can be achieved without resulting in toxic levels systemically. Clinical, radiographic and pathological response was evaluated following PMMA beads impregnated with vancomycin and tobramycin implanted in 18 dogs with severe infections following “limb sparing” operation with allograft replacement for osteosarcoma. A variety of aerobic and anaerobic bacterial organisms were cultured from the sites of infection and numerous systemic antimicrobial drug combinations were used in an attempt to control the infections prior to the implantation of the beads. In 12 of 18 (67%) dogs implanted, clinical signs of infection resolved within a median of four weeks post implantation. Three of 12 (25%) had recurrence of signs at a median of 17 weeks post implantation. This was not a randomized, prospective controlled trial and limitations to the study exist, the most notable being the variability in individual patient treatment. However, antibiotic impregnated PMMA bead implantation may play a role in the treatment of severe infections in dogs.

Eighteen dogs with severe infections were implanted with polymethyl methacrylate beads impregnated with tobramycin and vancomycin. In 67% of dogs implanted, clinical signs of infection resolved within a median of four weeks. Antibiotic impregnated PMMA bead implantation may play a role in the treatment of severe orthopedic infections in dogs.

This study was supported in part by grant number 2 PO1 CA 29582 from the National Cancer Institute. Its contents are solely the responsibility of the authors and do not necessarily represent the official views of the National Cancer Institute, USA.

Keywords

Antibiotic beads - antibiotic impregnated polymethyl methacrylate - infection - osteomyelitis - limb sparing - canine
 

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