Cefadroxil-Induced Infection Following Total Knee Arthroplasty.

Perioperative infection prophylaxis is a fundamental element of total knee arthroplasty (TKA). There has been a recent trend toward the use of extended postoperative oral antibiotics in high-risk patients. We describe a case report of a patient who underwent a primary TKA and subsequently developed  colitis after an extended course of postoperative prophylactic oral cefadroxil.