This multicenter RCT randomized 68 patients undergoing 2-stage exchange arthroplasty for TKA periprosthetic joint infection to either a static or articulating antibiotic spacer, asking whether spacer type affects functional outcomes and infection control at minimum 2-year follow-up.
When planning 2-stage exchange for TKA periprosthetic joint infection, choose an articulating spacer whenever the soft-tissue envelope is intact and bone stock is adequate — it delivers better motion and knee scores without sacrificing infection control.
Reserve static spacers for cases with severe bone loss or compromised soft tissues, understanding that you may face a stiffer knee and a harder reimplantation.
This multicenter RCT randomized 68 patients undergoing 2-stage exchange arthroplasty for TKA periprosthetic joint infection to either a static or articulating antibiotic spacer, asking whether spacer type affects functional outcomes and infection control at minimum 2-year follow-up.
When planning 2-stage exchange for TKA periprosthetic joint infection, choose an articulating spacer whenever the soft-tissue envelope is intact and bone stock is adequate — it delivers better motion and knee scores without sacrificing infection control.
Reserve static spacers for cases with severe bone loss or compromised soft tissues, understanding that you may face a stiffer knee and a harder reimplantation.