Abstract
Our experimental study revealed that pasteurization was sufficient for killing all tumor cells in any massive bone and that the osteoinductivity and mechanical strength of pasteurized bone were about same as that of a fresh bone graft and better than boiled or autoclaved bone. We have performed reconstruction surgery using pasteurized autogenous bone graft since 1990. Resected bone was warmed for 30 minutes in a homeothermal heater set at 60 degrees C and then placed back to the original anatomic site. The graft was fixed with a plate or intramedullary nail with or without bone cement. Based on our experience in 31 patients, no local recurrence was seen in the grafts. Among 24 patients who can be adequately evaluated, incorporation of graft was complete in 17 cases and partial in 4 cases. In 18 of 21 patients, uptake of radionuclide in the grafted pasteurized bone was detected on bone scintigraphy approximately 6 months after surgery, and the uptake increased gradually, which suggested revascularization and remodeling of grafted bone.
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