Fijación híbrida de componentes en la artroplastia de revisión de rodilla. Resultados clínicos, radiológicos y gammagráficos a medio plazo.

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2006
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Abstract
Background: The revision total knee arthroplasty using hybrid stem fixation is one of the most common methods in the prosthesis loosening treatment. Methods: We retrospectively reviewed 19 patients who under- went revision total knee PFC TC-3 Sigma performed between January 2001 to December 2004. The averaged age was 73.4 years at the time of operation. Patients were evaluated clini- cally, radiographic and scintygraphic using the American Knee society score, the Knee Society total knee arthroplasty roent- genographic evaluation modified by Fehring and the SF-36. The average follow-up was two years. Results: The average knee score improved from 27,8 points to 58,4 (11-95). The average functional score improved from 37,4 points to 59,8 (25-100). According to the radiographic study 17 of the 19 femoral implants with cementless stems were considered stable, 2 were categorized as possibly loose requiring close follow up, and none were loose. In the tibial implants only one case were considered possibly loose, the rest was stable. With respect to scintygraphic evaluation the bone scan was posi- tive in 12 cases in tibia and 8 in femur. A estatistical signifi- cance was found between the SF-36 and the KSS score. Conclusion: The PFC TC-3 Sigma system has demonstrated a good midterm results. By means the exploration and the KSS score we have obtained real conclusions on radiographic sta- bility and scintigraphic scan. It will be necessary to consider the long term results of the images studies and the possible relation with the aseptic loosening.
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Gómez Vallejo, J. ; Seral García, Belén ; Blanco Baiges, E. ; Seral Iñigo, Fernando. Fijación híbrida de componentes en la artroplastia de revisión de rodilla. Resultados clínicos, radiológicos y gammagráficos a medio plazo.. En: Revista española de cirugía osteoarticular, 2006, Volumen 41, Número 227: 101-108