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The use of spacers (static and mobile) in infection knee arthroplasty #MMPMID26395472
Mazzucchelli L; Rosso F; Marmotti A; Bonasia DE; Bruzzone M; Rossi R
Curr Rev Musculoskelet Med 2015[Dec]; 8 (4): 373-82 PMID26395472show ga
Revision total knee arthroplasty (TKA) is the treatment of choice in patients with periprosthetic joint infection. It may be performed in either a single stage or two stages. In the latter option, between stages, an antibiotic-loaded spacer may be used to maintain a certain amount of joint stability and mobility after the infected implant is removed, adding an intra-articular concentration of antibiotics. There are two types of antibiotic-loaded cement spacers: static and dynamic. Static spacers basically create a temporary arthrodesis with antibiotic-loaded cement and usually are handmade within the surgical field. Dynamic spacers can be created intraoperatively by using different tools or may be prepackaged by the manufacturer; they allow range of motion between stages. In this article, the authors review the indications, surgical techniques, and results for static and dynamic spacers in two-stage revision TKA.