Injection of PMMA in rabbit lumbar vertebral bodies produces early, focal bone necrosis in only half of cases, suggesting that competency of the cement-bone interface is reasonable in most cases. No evidence of intraosseous neural tissue damage was found.

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The high prevalence found demonstrates the need for further studies to better understand the epidemiology of the disease and to establish prevention and control measures.

The current data suggest that chronic liver failure and the presence of a distant nonspinal infection are possible risk factors for neurologic involvement in patients with pyogenic spinal infections. These risk factors have not been previously described. This knowledge warrants closer surveillance for neurologic deficit in patients with these conditions.