Tl. Norman et al., INFLUENCE OF DELAYED INJECTION TIME ON THE CREEP-BEHAVIOR OF ACRYLIC BONE-CEMENT, Journal of biomedical materials research, 37(2), 1997, pp. 151-154
It has been proposed that creep of acrylic bone cement may contribute
to loosening of cemented total joint replacements. If true, it is impo
rtant that factors affecting creep of bone cement are identified. The
objective of this study was to evaluate the effect of an operator-cont
rolled variable, injection time, on the creep behavior of acrylic bone
cement. Results from this investigation showed that injection time si
gnificantly (p < 0.0001) influenced creep behavior of bone cement. ''D
elayed'' injection time of acrylic bone cement increased creep by appr
oximately 5 times in 24 h compared to specimens prepared according to
standard injection procedures. (C) 1997 John Wiley & Sons, Inc.