Assessment of the effectiveness of weight-adjusted antibiotic administration, for reduced duration, in surgical prophylaxis of primary hip and knee arthroplasty

Table 3 Incidence of superficial and deep surgical site infections after 2 years follow up in patients undergoing elective primary total hip and knee arthroplasty

	Old regime, n = 669 patients	New regime, n = 595 patients
	(n = 675 THA/TKA)	(n = 598 THA/TKA)
Superficial infection, n (%)	14 (2.07)	9 (1.50)
	THA, n = 6	THA, n = 2
	TKA, n = 8	TKA, n = 7
Deep/organ space infection, n (%)	5 (0.74)	3 (0.50)
	THA, n = 1	THA, n = 2
	TKA, n = 4	TKA, n = 1

TKA: Total knee arthroplasty; THA: Total hip arthroplasty.