Table 4.

Occurrence of PJI (%) over time in knee arthroplasty group and total hip arthroplasty group according to prophylactic antibiotic.

Group	Prophylactic Antibiotic	1 Month	3 Months	<1 Year	>1 Year
UKA/TKA	Cefuroxime (n = 21), n (%)	7 (33.3)	5 (23.8)	5 (23.8)	4 (19.1)
	Non-cefuroxime (n = 3), n (%)	1 (33.3)	0 (0.0)	0 (0.0)	2 (66.7)
THA	Cefuroxime (n = 61), n (%)	33 (54.1)	12 (36.4)	2 (3.3)	14 (23.0)
	Non-cefuroxime (n = 6), n (%)	3 (50.0)	1 (16.7)	2 (33.3)	0 (0.0.)

TKA, total knee arthroplasty; UKA, unicompartmental knee arthroplasty; THA, total hip arthroplasty; n, number.