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  • Title: Nonsteroidal antiinflammatory drug modulation of prosthesis pseudomembrane induced bone resorption.
    Author: Herman JH, Sowder WG, Hess EV.
    Journal: J Rheumatol; 1994 Feb; 21(2):338-43. PubMed ID: 8182646.
    Abstract:
    OBJECTIVE: To study the in vitro effect of therapeutic levels of select nonsteroidal antiinflammatory drugs (NSAID) on prosthesis associated pseudomembrane induced bone resorption and cytokine and prostanoid synthesis using tissue obtained from osteoarthritic patients undergoing revision of cemented implants. METHODS: Pseudomembranes were cultured in the presence and absence of therapeutic levels of select NSAID: Processed conditioned media were evaluated for bone resorbing capacity by assessing murine neonatal limb rudiment release of 45Ca. Interleukin 1 (IL-1) and tumor necrosis factor (TNF) were analyzed by bioassay and prostaglandin E2 (PGE2) by radioimmunoassay. RESULTS: Piroxicam, in contrast to indomethacin and sodium salicylate, significantly decreased membrane associated bone resorption. The NSAID effect correlated more consistently with piroxicam downregulation of TNF synthesis than that of IL-1. Consistent drug associated suppression of PGE2 synthesis did not enable differentiation of NSAID effectiveness in suppressing pseudomembrane induced bone resorption. CONCLUSION: Results provide a rational basis for design of animal models and/or further human studies to test the hypothesis that the prophylactic administration of an NSAID can potentially retard the pseudomembrane effected bone resorptive process associated with aseptic cemented prosthesis failure.
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