35-202
Análisis de las roturas del anillo de expansión LD
Analysis of the breakage of the LD expansion acetabular cup
C. GARCÍA-FERNANDEZ, A. LEON GARRIGOSA. R. ZARZOSO SANCHEZ. A. FRANCES BORREGO Y L. LOPEZ-DURAN STERN. SERVICIO DE CIRUGÍA ORTOPÉDICA Y TRAUMATOLOGÍA. HOSPITAL CLÍNICO SAN CARLOS. MADRID.
Recepción:
15/09/2008
Aceptación:
15/09/2008
Publicación:
15/09/2008
Métricas
68
Visualizaciones
Compartir
Compartir
Resumen (ES)
We present the clinical study of 17 breakage of
the LD expansive metalling ring, of 779 total hip prosthesis
(2,2%) implanted in our Service from 1989 to 1994. An
analysis was performed to discoverthe reasons of the breakage.
Dominated in patients with a high activity and overweight.
In the roentgenographic analysis of the ring, we
emphasise insufficient cover and migration of the ring as
predisposing factors in 16 patients (94,1 %). For these facts
we performed a finite and mechanical element analysis
that changed the original ring. The new ring is hydroxiapatite
coated and the hole for the screws have move periferically.
The thickness and the space between slits have
been also reduced.
the LD expansive metalling ring, of 779 total hip prosthesis
(2,2%) implanted in our Service from 1989 to 1994. An
analysis was performed to discoverthe reasons of the breakage.
Dominated in patients with a high activity and overweight.
In the roentgenographic analysis of the ring, we
emphasise insufficient cover and migration of the ring as
predisposing factors in 16 patients (94,1 %). For these facts
we performed a finite and mechanical element analysis
that changed the original ring. The new ring is hydroxiapatite
coated and the hole for the screws have move periferically.
The thickness and the space between slits have
been also reduced.
Palabras clave (ES):
Artroplastia
Prótesis
Cadera
total
Cotilo
Acetábulo
Componente
acetabular
Complicaciones
Rotura
Anillo
de
expansión
LD
No
cementado
Fijación
Resumen (EN)
We present the clinical study of 17 breakage of
the LD expansive metalling ring, of 779 total hip prosthesis
(2,2%) implanted in our Service from 1989 to 1994. An
analysis was performed to discoverthe reasons of the breakage.
Dominated in patients with a high activity and overweight.
In the roentgenographic analysis of the ring, we
emphasise insufficient cover and migration of the ring as
predisposing factors in 16 patients (94,1 %). For these facts
we performed a finite and mechanical element analysis
that changed the original ring. The new ring is hydroxiapatite
coated and the hole for the screws have move periferically.
The thickness and the space between slits have
been also reduced.
the LD expansive metalling ring, of 779 total hip prosthesis
(2,2%) implanted in our Service from 1989 to 1994. An
analysis was performed to discoverthe reasons of the breakage.
Dominated in patients with a high activity and overweight.
In the roentgenographic analysis of the ring, we
emphasise insufficient cover and migration of the ring as
predisposing factors in 16 patients (94,1 %). For these facts
we performed a finite and mechanical element analysis
that changed the original ring. The new ring is hydroxiapatite
coated and the hole for the screws have move periferically.
The thickness and the space between slits have
been also reduced.
Explorar
Artículos
Volúmenes
Sobre la revista