Discrimination of soft tissue infection from osteomyelitis in diabetic foot infections is a common clinical problem. Staphylococcus aureus isolates from patients with osteomyelitis express bone sialoprotein-binding protein (Bbp) that binds the bone matrix protein bone sialoprotein. The serological assay with Bbp discriminated cases of osteomyelitis from soft tissue infections in patients with diabetic foot ulcers.
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Persson et al. (2009) studied this question.
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