The relation between postoperative wound leakage and occurrence of a prosthetic joint infection (PJI) after arthroplasty has not been investigated in a prospective study. We performed a large cohort study in which 1019 patients, after arthroplasty, recorded their wound drainage status in a wound care app during 30 postoperative days. Risk factors for wound drainage were identified. Moderate to heavy wound leakage in the third postoperative week was strongly associated with the occurrence of PJI.

Forty years ago I made a radical professional choice: to dedicate a few years of practice to the African continent. Not surprisingly, a few years became many. This paper is dedicated to the children who are battling osteoarticular infections and to those who will be struggling with them in future.

Arthroplasty after septic arthritis (SA) raises diagnostic and therapeutic questions. We report on 49 knee and hip arthroplasties following SA. Median SA-to-arthroplasty interval was 32 weeks, and one-stage arthroplasty was performed in 43 episodes. No SA relapse but 5 new prosthetic joint infections occurred with an infection-free survival rate of 96 % at 2 years. Arthroplasty may be a post-SA option, even within a short period of time but requires specific management and prolonged monitoring.

Adding immunologic evaluation to the Cierny–Mader classification more accurately determines patients’ true host status and better quantifies risk and outcome with respect to orthopedic infection. Immunologically deficient A hosts should be quantified as B hosts. IgG deficiencies can be addressed with supplementation. IgG replacement should be considered in patients with recurrent orthopedic infections.

Clinical prognostic models are tools that predict treatment outcomes for individual patients. For adults with bone and joint infection treated with surgery and implant removal, this review found no existing unbiased clinical prediction models that took modifiable health factors into account to estimate prognosis. Developing a clinical prognostic model may help treatment decisions and future targeted research in orthopaedic infection.