31-182
Valoración a medio-largo plazo de los cotilos de Mittelmeier
Medium to long-term results of mittelmeier cups
A. M. HIDALGO OVEJERO*. I. BERROZPE BERIAIN**. S. GARCIA MATA*.J. GONZALEZ ARTEAGA* y M. MARTINEZ GRANDE* * Servicio de Cirugía Ortopédica. Hospital Virgen del Camino/Clínica Ubarmin.** Sección de Urgencias. Hospital Virgen del Camino. Pamplona.
Recepción:
06/11/2008
Aceptación:
06/11/2008
Publicación:
06/11/2008
Métricas
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Resumen (ES)
This study was aimed at evaluating clinically and radiologically the results of 125
Mittelmeier cups implanted in our institution, with a mean follow-up of 8 years (5.5-14). The same
type of cup was used in the whole series, combined with two types of femoral stem from the
2nd and 3rd generations. The results were satisfactory in 91 % of cases treated with the 3rd generation
and 57% in those cases treated with the 2nd generation of implants. Progressive inclination
and coverage were detected with both horizontal and vertical migration of the cups. No relationship
was found between clinical results and the displacements observed. In this series, migrations
of the cup were more frequent than those published by other authors. Horizontal and vertical
migratrion may be due to the difference between the coefficients of elasticity of ceramic and
bone. Cup migration did not imply poor results. In conclusion, the overall results obtained with
the Mittelmeier cups were satisfactory, in spite of migration. The clinical repercussion of cup migrations
was minimal.
Mittelmeier cups implanted in our institution, with a mean follow-up of 8 years (5.5-14). The same
type of cup was used in the whole series, combined with two types of femoral stem from the
2nd and 3rd generations. The results were satisfactory in 91 % of cases treated with the 3rd generation
and 57% in those cases treated with the 2nd generation of implants. Progressive inclination
and coverage were detected with both horizontal and vertical migration of the cups. No relationship
was found between clinical results and the displacements observed. In this series, migrations
of the cup were more frequent than those published by other authors. Horizontal and vertical
migratrion may be due to the difference between the coefficients of elasticity of ceramic and
bone. Cup migration did not imply poor results. In conclusion, the overall results obtained with
the Mittelmeier cups were satisfactory, in spite of migration. The clinical repercussion of cup migrations
was minimal.
Palabras clave (ES):
Artroplastia
Cadera
Prótesis
Acetábulo
Resultado
Largo
Plazo
CotiloMittelmeier
Resumen (EN)
This study was aimed at evaluating clinically and radiologically the results of 125
Mittelmeier cups implanted in our institution, with a mean follow-up of 8 years (5.5-14). The same
type of cup was used in the whole series, combined with two types of femoral stem from the
2nd and 3rd generations. The results were satisfactory in 91 % of cases treated with the 3rd generation
and 57% in those cases treated with the 2nd generation of implants. Progressive inclination
and coverage were detected with both horizontal and vertical migration of the cups. No relationship
was found between clinical results and the displacements observed. In this series, migrations
of the cup were more frequent than those published by other authors. Horizontal and vertical
migratrion may be due to the difference between the coefficients of elasticity of ceramic and
bone. Cup migration did not imply poor results. In conclusion, the overall results obtained with
the Mittelmeier cups were satisfactory, in spite of migration. The clinical repercussion of cup migrations
was minimal.
Mittelmeier cups implanted in our institution, with a mean follow-up of 8 years (5.5-14). The same
type of cup was used in the whole series, combined with two types of femoral stem from the
2nd and 3rd generations. The results were satisfactory in 91 % of cases treated with the 3rd generation
and 57% in those cases treated with the 2nd generation of implants. Progressive inclination
and coverage were detected with both horizontal and vertical migration of the cups. No relationship
was found between clinical results and the displacements observed. In this series, migrations
of the cup were more frequent than those published by other authors. Horizontal and vertical
migratrion may be due to the difference between the coefficients of elasticity of ceramic and
bone. Cup migration did not imply poor results. In conclusion, the overall results obtained with
the Mittelmeier cups were satisfactory, in spite of migration. The clinical repercussion of cup migrations
was minimal.
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