Volume 25, Number 5—May 2019
Synopsis
Outbreak of Nontuberculous Mycobacteria Joint Prosthesis Infections, Oregon, USA, 2010–2016
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.
1These authors were co-principal investigators and contributed equally to this article.
2Current affiliation: Providence Health and Services, Portland, Oregon, USA.