“…[7][8][9][10][11][12][13][14] Risk factors include patients factors such as young age, male sex, high body mass index, diabetes mellitus, preoperative comorbidities, previous knee surgeries, and rheumatoid arthritis, [7][8][9][10][11][12][13]15,16 as well as surgical factors such as operative time, surgeon volume, and hospital volume. 9,11,14,[16][17][18][19][20] A low hospital volume has been associated with a higher risk of PJI. 10,14,16,17,20 However, one study reported a higher risk in hospitals with an annual volume of >200 cases compared with hospitals with an annual volume of <100 cases.…”