41-227
Fijación híbrida de componentes en la artroplastia de revisión de rodilla. Resultados clínicos, radiológicos y gammagráficos a medio plazo
Hybrid fixation of components in revision total knee arthroplasty. Clinical, radiological and scintygraphic results in the mid term
J. GÓMEZ VALLEJO, B. SERAL GARCÍA, E. BLANCO BAIGES, F. SERAL IÑIGO SERVICIO DE TRAUMATOLOGÍA Y ORTOPEDIA DEL HOSPITAL CLÍNICO UNIVERSITARIO LOZANO BLESA. ZARAGOZA
Recepción:
15/09/2008
Aceptación:
15/09/2008
Publicación:
15/09/2008
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Resumen (ES)
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 underwent
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 clinically,
radiographic and scintygraphic using the American Knee
society score, the Knee Society total knee arthroplasty roentgenographic
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 positive
in 12 cases in tibia and 8 in femur. A estatistical significance
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 stability
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.
using hybrid stem fixation is one of the most common methods
in the prosthesis loosening treatment.
Methods: We retrospectively reviewed 19 patients who underwent
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 clinically,
radiographic and scintygraphic using the American Knee
society score, the Knee Society total knee arthroplasty roentgenographic
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 positive
in 12 cases in tibia and 8 in femur. A estatistical significance
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 stability
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.
Palabras clave (ES):
Resultados
Gammagrafía
Rodilla
híbrida
Fijación
Prótesis
Artroplastia
Revisión
Recambio
Aflojamiento
Resumen (EN)
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 underwent
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 clinically,
radiographic and scintygraphic using the American Knee
society score, the Knee Society total knee arthroplasty roentgenographic
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 positive
in 12 cases in tibia and 8 in femur. A estatistical significance
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 stability
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.
using hybrid stem fixation is one of the most common methods
in the prosthesis loosening treatment.
Methods: We retrospectively reviewed 19 patients who underwent
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 clinically,
radiographic and scintygraphic using the American Knee
society score, the Knee Society total knee arthroplasty roentgenographic
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 positive
in 12 cases in tibia and 8 in femur. A estatistical significance
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 stability
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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