Jose A. Rodriquez, MD

Use of a tourniquet may reduce local tissue concentrations of cefazolin, which could increase the risk of periprosthetic joint infection for patients undergoing total knee arthroplasty, according to published data.

Based on these observations, it is clear that impingement is a recurring theme in hard-on-hard bearing dysfunction. The association between rim impingement and squeaking was first presented in 2003 by Eichman et al in association with excessive socket anteversion. Moreover, Christensen and Jacobs have recently shown that there is a significant predisposition toward squeaking with ligamentous laxity, which is also a predisposition for rim impingement.