Table. Characteristics of 9 nontuberculous mycobacterial knee and hip prosthetic joint SSIs at multiple hospitals, Oregon, 2010–2014*.

Case no.	Prosthesis type	Procedure year	SSI type	Mycobacterium species	Time to SSI, d†	SSI to culture, d‡	Time to culture, d§
1	Hip	2010	Unknown	M. goodii	157	0	157
2	Hip	2010	Organ space	M. goodii	35	35	70
3	Knee	2013	Deep incision	M. fortuitum	70	22	92
4	Knee	2013	Superficial incisional	M. fortuitum	85	0	85
5	Hip	2013	Organ space	M. fortuitum	78	54	132
6	Knee	2013	Organ space	M. fortuitum	69	34	103
7	Knee	2013	Organ space	M. fortuitum	69	30	99
8	Hip	2014	Suture abscess	M. fortuitum	86	14	100
9	Hip	2014	Organ space	M. fortuitum	83	1	84

*SSI identification date: National Health Safety Network event date, or chart review, or specimen culture collection date. Case 10 not included in analysis. SSI, surgical site infection.
†From time of surgery to SSI identification date. Median 78 d.
‡From time of SSI identification to mycobacterial specimen culture collection date. Median 22 d.
§From time of surgery to mycobacterial specimen culture collection date. Median 99 d.