Efficacy of ActiveMatrix on Spinal SSI Rate

All patients will receive weight based prophylactic antibiotics i.e. Ancef, vancomycin, or clindamycin. Drains will be used in fusion cases only. Intrawound vancomycin will be used for all instrumented cases.No negative pressure devices will be used. Anatomic layers will be closed in similar, standard fashion for all cases. For those randomized to the treatment group, the ActiveMatrix product will be administered on top of the dura mater and again on the closed fascia. Those in the control group, will forgo this step.