120 patients requiring metal on metal hip resurfacing were randomized to receive a cemented femoral component or a cementless femoral component in order to determine the effect cement on femoral neck bone mineral density. The results of the study indicate that both cemented and cementless femoral components result in increased bone mineral density over the 1 year follow-up period. Compared with a cemented femoral component, cementless femoral components resulted in higher bone mineral density at both 6 month and 1 year follow-ups.
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