Cutibacterium avidum resists surgical skin antisepsis in the groin—a potential risk factor for periprosthetic joint infection: a quality control study

Table 2 Bacterial growth results after skin antisepsis of 10 patients colonized with C. avidum at time of hip arthroplasty surgery

Patient-Nr.	Preoperative skin swabs (outpatient clinic) within 1–2 weeks before surgery	Perioperative skin swabs
		After first antisepsis	After third antisepsis
4	*C. avidum (+)*	No growth	No growth
	S. epidermidis
17	*C. avidum (+)*	*C. avidum (+)*	*C. avidum (+)*
23	C. granulosum	No growth	C. granulosum
	*C. avidum (++)*
	S. epidermidis
	S. haemolyticus
	S. epidermidis
24	*C. avidum (++)*	*C. avidum (+)*	No growth
	S. epidermidis	S. epidermidis
	C. acnes	C. acnes
		C. granulosum
32	*C. avidum (+)*	S. capitis	No growth
	S. epidermidis
	S. hominis
34	*C. avidum (+)*	C. acnes	No growth
	S. epidermidis
	Staphylococcus lugdunensis
	Staphylococcus capitis
	Corynebacterium tuberculostearicum
43	*C. avidum (+)*	S. epidermidis S. hominis S. haemolyticus S. capitis	S. epidermidis
45	*C. avidum (+)* Enterococcus faecalis Enterococcus facium S. epidermidis	*C. avidum (+)*	No growth
51	*C. avidum (+)* S. epidermidis	*C. avidum (++)*	*C. avidum (+)* S. epidermidis
53	S. epidermidis *C. avidum (+)* S. lugdunensis	S. epidermidis C. acnes S. hominis	S. epidermidis

We used the three-phase streaking pattern for a semiquantitative analysis for C. avidum in all skin eSwab samples. We defined low level of bacteria when growth in the first section (+), medium when growth in the second section (++), and high when growth in the third and last section (+++)

ISSN: 2047-2994