Lower success rate of débridement and implant retention in late acute versus early acute periprosthetic joint infection caused by Staphylococcus spp. Results from a matched cohort study - Wouthuyzen-Bakker, M; Sebillotte, M; Huotari, K; ESCMID Study Group for Implant-Associated Infections (ESGIAI) (Clin Orthop Relat Res, 2020)