Keywords: anaphylaxis; antibiotic prophylaxis; ceftriaxone; cephalosporin allergy; clindamycin; dual antibiotic prophylaxis; methicillin-resistant Staphylococcus aureus (MRSA) carriers; methicillin-sensitive Staphylococcus aureus (MSSA); optimal antibiotic; penicillin allergy; prior implant; prolonged antibiotic prophylaxis; prophylactic antibiotic alternatives; routine allergy testing; teicoplanin; vancomycin.