The Journal of Bone and Joint Surgery, Vol 58, Issue 1 76-81, Copyright © 1976 by Journal of Bone and Joint Surgery, Inc
The effect of polymethylmethacrylate and antibiotic combinations on bacterial viability. An in vitro and preliminary in vivo study
MW Chapman and WK Hadley
Polymethylmethacrylate itself has a slight, long-term bacteriostatic effect
on the growth of staphylococci, but while polymerizing the heat of
polymerization and possibly the elaboration of monomer can be bactericidal
to many pathogenic organisms. Twelve antibiotics incorporated into
polymethylmethacrylate cement retained their antibacterial activity for
long periods in dry storage, but the antibiotics leached out of
polymethylmethacrylate quite rapidly in vitro and in vivo. No antibiotic
could be found after thirty-seven days in treated cement pellets placed in
a rabbit thigh.