1 research outputs found
Valoraci贸n a medio-largo plazo de los cotilos de Mittelmeier
El objetivo del presente trabajo es valorar cl铆nica y radiol贸gicamente la evoluci贸n
de 125 cotilos de Mittelmeier implantados en nuestro servicio, con un seguimiento medio de
8 a帽os (5,5-14). En toda la serie se ha utilizado un mismo tipo de cotilos, aunque se han utilizado
2 v谩stagos, los de segunda y los de tercera generaci贸n. El comportamiento ha sido satisfactorio
en el 91% de los de tercera generaci贸n y el 57% en los de segunda. Se comprob贸 una inclinaci贸n
y recubrimientos progresivos y una emigraci贸n horizontal y vertical significativas de los cotilos.
No se encontr贸 relaci贸n entre los resultados cl铆nicos y las alteraciones posicionales. La
movilizaci贸n del cotilo aparece en nuestra serie mucho m谩s frecuentemente que en la mayor parte
de la literatura. Las emigraciones horizontal y vertical pueden ser debidas a los diferentes coeficientes
de elasticidad de la cer谩mica y el hueso sin implicar necesariamente malos resultados.
Como conclusi贸n, el comportamiento de los cotilos de Mittelmeier ha sido en general satisfactorio
a pesar de las emigraciones, que han tenido escasa repercusi贸n cl铆nica.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
2
nd
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