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Outcome of patients with diabetes with negative percutaneous bone biopsy performed for suspicion of osteomyelitis of the foot

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Diabet. Med. 29, 56–61 (2012)
Abstract

Aims  To assess the outcome of patients with diabetes with suspicion of osteomyelitis of the foot who had undergone a percutaneous bone biopsy that yielded negative microbiological results, with focus on the occurrence of osteomyelitis at the biopsied site.

Methods  Medical charts of adult patients with diabetes with a negative percutaneous bone biopsy were reviewed. Patients’ outcome was evaluated at least 2 years after the initial bone biopsy according to wound healing, the results of a new bone biopsy and bone imaging evaluation when applicable.

Results  From January 2001 to January 2008, 41 patients with diabetes (30 men/11 women; mean age 58.1 ± 9.6 years; mean diabetes duration 15.8 ± 6.7 years) met study criteria. Osteomyelitis was suspected based on combined clinical and imaging diagnostic criteria. On follow‐up at a mean duration of 41.2 ± 22.5 months post‐bone biopsy, 16 patients had complete wound healing (39.0%). Of the 25 other patients, 15 had a new bone biopsy performed, six of which yielded positive microbiological results, and among the 10 patients who neither healed nor underwent bone biopsy, comparative radiography of the foot showed a stable aspect of the biopsied site in six of them, for whom the data were available. Finally, osteomyelitis of the foot at the site where the initial bone biopsy had been performed was confirmed during follow‐up in six patients (14.6%) and was suspected in four additional patients (9.7%).

Conclusions  The results of the present study suggest that, of patients with diabetes with the suspicion of osteomylelitis and a negative percutaneous bone biopsy, only one out of four will develop osteomyelitis within 2 years of the biopsy.
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Document Type: Research Article

Affiliations: 1: General Hospital of Tourcoing 2: General Hospital of Bethune 3: General Hospital of Lens, France

Publication date: January 1, 2012

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