Postoperative deep shoulder infections following rotator cuff repair

Table 1 Summary of reported microorganisms that were isolated from the patients with deep shoulder infections following rotator cuff repair in various retrospective case-series studies

Ref.	Patient No.	No. of isolated organisms	P. acnes	S. aureus	Coagulase-negative Staph1	Other microorganisms
Kwon et al[7]	14 (11 mono, 3 poly-microbial)	19	7	4	6	2 (Proteus mirabilis and Enterococcus faecalis)
Athwal et al[8]	38 (39 shoulders: 33 mono, 6 poly-microbial)	45	20	8	12	5 (Coryebacterium species × 2, Peptostreptococcus magnus, Bacillus species, Streptococcus viridans)
Settecerri et al[9]	16 (15 mono, 1 poly-microbial)	15	6	4	4	1 (Peptostreptococcus)
Pauzenberger et al[10]	28 (mono-microbial isolation in 23 patients)	23	8	2	12	1 (Actinomyces species)
Mirzayan et al[27]	13 (7 mono, 3 poly-microbial, 3 no growth)	15	3	5	5	2 (Diptheroids and Streptococcal species)

¹Coagulase-negative Staphylococci include but not limited to S. epidermitis, S. saprophyticus and S. hominis) (Courtesy of University of Manitoba, Section of Orthopaedic Surgery, Pan Am Clinic, Winnipeg, Manitoba, Canada).