Resumen

PESCIALLO, César Á; GARABANO, Germán  y  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.

Palabras clave : Deep infection; Total knee arthroplasty; Revision; Static spacer; Articulated spacer; Cement with antibiotic.

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