A critical review of the literature: part I: diagnosing osteomyelitis in patients with diabetes and foot ulcers.
Despite our best efforts, chronic wounds continue to confound us. Cases of patients with diabetes who have wounds are particularly perplexing and challenging to manage. The diagnosis and treatment of osteomyelitis in this population are of great interest to clinicians. Much of wound care is based on tradition and expert opinion. The current focus is on evidence-based practice. The purpose of this critical literature review is to determine the best evidence for diagnosing osteomyelitis as a basis for providing appropriate therapy to patients with diabetes and foot ulcers. Treatments vary greatly in terms of time, cost, and invasiveness depending on the accuracy of the diagnosis. The choice of oral versus parenteral antibiotics, the length of the treatment, and decisions about surgical intervention or aggressive debridement are based on correctly differentiating osteomyelitis from soft tissue infection, osteoarthropathy, and other conditions. It is difficult to differentiate soft tissue infection from bone infection in the patient with diabetes and neuropathic bone disease. The precision of available tools for diagnosing osteomyelitis in patients with diabetes and foot ulcers is widely debated. A gold standard as a reference test for clinical trials and treatment decisions has not been consistently used in published research studies. Without a reference test that is reliable and valid, the conclusions regarding effectiveness of diagnostic modalities and antibiotic treatment regimens are questionable.