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Treatment of chronic osteomyelitis by necrectomy and gentamicin-PMMA beads
Abstract:
Irrigation and suction-drainage have certain disadvantages in the treatment of chronic osteomyelitis. Some of these are: a long bed-restricted postoperative period; necessity of constant control of the flow system; careful and continuous physician and nursing care, and high costs of hospitalization. A new procedure, designed by Klemm, is the use of gentamicin-polymethylmethacrylate (G-PMMA) beads strung in chains after necrectomy. High local concentrations of antibiotic are achieved without systemic toxic side effects. External fixation is to be used when excessive dead bone resection produces instability, and cancellous grafting when significant bone defects that disturb bone healing must be filled. In the period between 1974 and 1979 more than 120 patients with chronic osteomyelitis were managed with this method. Twenty-five cases were available for follow-up three to five years after treatment: 96% had considerable improvement of their condition, and 88% became asymptomatic with no evidence of infection. G-PMMA bead treatment is encouraging not only for the high success rate, but also because it might eliminate the need for prolonged hospitalization.
Insights
Gentamicin-polymethylmethacrylate (G-PMMA) beads offer an effective treatment for chronic osteomyelitis, significantly improving patient outcomes. This innovative method reduces hospitalization time and avoids systemic toxicity associated with traditional approaches.
Area of Science:
- Orthopedics
- Infectious Diseases
- Biomaterials
Background:
- Chronic osteomyelitis presents treatment challenges with traditional irrigation and suction-drainage methods.
- Existing treatments involve prolonged recovery, intensive monitoring, and high healthcare costs.
Purpose of the Study:
- To evaluate the efficacy of gentamicin-polymethylmethacrylate (G-PMMA) beads for treating chronic osteomyelitis.
- To assess the clinical outcomes and potential for reduced hospitalization with G-PMMA bead therapy.
Main Methods:
- A novel procedure utilizing G-PMMA beads strung in chains post-necrectomy was employed.
- External fixation and cancellous grafting were used adjunctively for instability and bone defects.
- Over 120 patients were treated between 1974 and 1979, with 25 cases followed for 3-5 years.
Main Results:
- 96% of followed patients showed considerable improvement in their chronic osteomyelitis condition.
- 88% of patients achieved asymptomatic status with no signs of infection post-treatment.
- High local antibiotic concentrations were achieved without systemic toxic effects.
Conclusions:
- G-PMMA bead treatment demonstrates a high success rate in managing chronic osteomyelitis.
- This method offers a promising alternative that may reduce the need for extended hospital stays.
- The localized antibiotic delivery minimizes systemic side effects, enhancing patient safety.