Resumo

PESCIALLO, César Á; GARABANO, Germán  e  DEL SEL, Hernán. Espaciadores estáticos de cemento con antibiótico en la infección protésica de rodilla: Técnica de elaboración y movilidad posoperatoria. Rev. Asoc. Argent. Ortop. Traumatol. [online]. 2015, vol.80, n.2, pp.94-103. ISSN 1852-7434.

Background: Despite improvements in surgical technique, the number of infections after total knee arthroplasty continues to rise. According to bibliographic reviews, the two-stage exchange procedure has obtained higher percentages of cure than that performed in a single stage. The purpose of this paper was to show our technique for preparing the static spacer, the results and the range of motion achieved with two-stage revision of infected total knee arthroplasty using those spacers. Methods: We performed 153 total knee arthroplasty revisions between 1997 and 2010, 33 (21%) of them due to a prosthetic chronic infection, treated with a two-stage procedure with cement static spacer with antibiotic. We evaluated 33 total knee arthroplasties in 32 patients, with an average age of 69 years and an average postoperative follow-up of 3.5 years. Results: Healing was achieved in 30 (91%) of the 33 knees. Twenty-eight knees were successfully reimplanted, two with healing infection were not reimplanted for different reasons and 3 had persistent infection. The 28 reimplanted knees evolved favorably, achieving a range of motion of 90º in an average of 3 months after surgery. Conclusions: The static knee spacer achieved a similar healing rate to that obtained with articulated spacers. The advantage of static spacers is its easy manufacture and placement, giving greater stability and an acceptable range of motion.

Palavras-chave : Deep infection; Total knee arthroplasty; Revision; Static spacer; Articulated spacer; Cement with antibiotic.

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