<qa>  What is the most common antibiotic bone cement?TheraGauze-tobramycin. We plan to use TheraGauze saturated with tobramycin at 3 mgml, the same dose used in the ophthalmic preparations e.g., Tobrex and much smaller concentration than the concentration in tobramycin bone cement 50 - 60 mgml. The decades of efficacy and safety with tobramycin eye drops justifies using the 3 mgml concentration. In vitro testing with TheraGauzetobramycin 0.9 mgml, shows excellent broad-spectrum antibacterial activity against Gram-negative and Gram-positive bacterial pathogens including all clinical MRSA strains tested Echague, Hair et al. 2010. We expect that 85 of the cutaneous abscesses furuncles will be infected with MRSA Demos, McLeod et al. 2012. Additionally, tobramycin is a non-absorbable antibiotic and thus an excellent choice for achieving local antimicrobial activity with minimal risk of systemic side effects, which it is why it is the most common antibiotic bone cement. 