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Preservation of devitalized calvarium following high-voltage electrical injury: case reports.

Three victims of electrical injury with necrosis of a portion of the skull had excision of overlying necrotic soft tissue soon after injury with immediate coverage of the devitalized bone with soft-tissue flaps. In two instances, the flap was from adjacent scalp; in the other a free myocutaneous flap was used. All wounds healed without sequestration of bone. Necrosis of the calvarium was substantiated by evidence of nonperfusion on a radionucleotide bone scan. In each instance, a followup bone scan showed evidence of regeneration of bone. This experience supports an earlier observation which suggested that devitalized but intact calvarium following electrical injury does not need to be removed and is the perfect in situ bone graft.