Abstract. Introduction: Debridement, antibiotics and implant retention (DAIR)
procedures are effective treatments for acute postoperative or acute
hematogenous periprosthetic joint infections. However, literature reporting
on the effectiveness of DAIR procedures performed after a one- or two-stage
revision because of a prosthetic joint infection (PJI) (PJI-related revision arthroplasty) is scarce. The
aim of this study is to retrospectively evaluate the infection control after
1 year of a DAIR procedure in the case of an early postoperative infection
either after primary arthroplasty or after PJI-related revision
arthroplasty.
Materials and methods: All patients treated with a DAIR procedure within 3
months after onset of PJI between 2009 and 2017 were retrospectively
included. Data were collected on patient and infection characteristics. All
infections were confirmed by applying the Musculoskeletal Infection Society (MSIS) 2014 criteria. The primary
outcome was successful control of infection at 1 year after a DAIR
procedure, which was defined as the absence of clinical signs, such as pain,
swelling, and erythema; radiological signs, such as protheses loosening; or
laboratory signs, such as C-reactive protein (CRP) (<10) with no use of antibiotic therapy.
Results: Sixty-seven patients were treated with a DAIR procedure (41 hips and 26
knees). Successful infection control rates of a DAIR procedure after primary
arthroplasty (n=51) and after prior PJI-related revision arthroplasty
(n=16) were 69 % and 56 %, respectively (p=0.38). The successful infection control rates of a DAIR procedure after an early acute infection
(n=35) and after a hematogenous infection (n=16) following primary
arthroplasty were both 69 % (p=1.00).
Conclusion: In this limited study population, no statistically significant
difference is found in infection control after 1 year between DAIR
procedures after primary arthroplasty and PJI-related revision arthroplasty.