Application of 3D Printing-Assisted Articulating Spacer in Two-Stage Revision Surgery for Periprosthetic Infection after Total Knee Arthroplasty: A Retrospective Observational Study

Table 2

Pathogen spectrum.

Organism	Spacer type
	Static group	3D-printed articular group
MSSA	9	7
Staphylococcus epidermis	4	5
MRSA	2	1
Pseudomonas aeruginosa	2	1
Streptococcus	1	2
Aspergillus species	0	1
Other	2	1
No growth	2	2
Total	22	20

MSSA: methicillin susceptible staphylococcus aureus; MRSA: methicillin-resistant staphylococcus aureus.