29-174
Cotilos roscado y atornillado recubiertos de hidroxiapatita. Estudio comparativo
THREADED VERSUS SCREW-FIXED HYDROXYAPATITE-COATED ACETABULAR IMPLANTS. COMPARATIVE STUDY
J. AMADOR MELLADO, J. GONZÁLEZ MÉNDEZ, S. ANTUÑA ANTUÑA, D. NUÑEZ BATALLA, C. FERNÁNDEZ GUTIÉRREZ y J. PAZ JIMÉNEZ Servicio de Cirugía Ortopédica y Traumatología I. Hospital Central de Asturias. Oviedo.
Recepción:
09/01/2009
Aceptación:
09/01/2009
Publicación:
09/01/2009
Métricas
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Resumen (ES)
One hundred twenty two hidroxyapatite-coated acetabular implants, 45 threaded
and 77 fixed with screws, were reviewed. The average follow-up period was 3.8 years. The
results have been very encouraging, obtaining 9 3% of excellent and good results with threaded
cups and 8 3% when fixed with screws. Threaded cups had better scores for avascular necrosis
(p<0.01) and primary osteoarthrosis (p<0.05). The worse results were achieved for patients
with revisions and inflamatory diseases. No evidence of loosening was found. The placement of
threaded cups was more horizontal. Male sex was associated with developing of heterotopic ossification.
There were 7% of dislocations associated with a longes distance from the teardrop
and as shorter length of the calcar from the lesser trochanter.
and 77 fixed with screws, were reviewed. The average follow-up period was 3.8 years. The
results have been very encouraging, obtaining 9 3% of excellent and good results with threaded
cups and 8 3% when fixed with screws. Threaded cups had better scores for avascular necrosis
(p<0.01) and primary osteoarthrosis (p<0.05). The worse results were achieved for patients
with revisions and inflamatory diseases. No evidence of loosening was found. The placement of
threaded cups was more horizontal. Male sex was associated with developing of heterotopic ossification.
There were 7% of dislocations associated with a longes distance from the teardrop
and as shorter length of the calcar from the lesser trochanter.
Palabras clave (ES):
Atornillado
Tornillo
Cadera
Artroplastia
Prótesis
Cotilo
Acetábulo
Roscado
Hidroxiapatita
Resumen (EN)
One hundred twenty two hidroxyapatite-coated acetabular implants, 45 threaded
and 77 fixed with screws, were reviewed. The average follow-up period was 3.8 years. The
results have been very encouraging, obtaining 9 3% of excellent and good results with threaded
cups and 8 3% when fixed with screws. Threaded cups had better scores for avascular necrosis
(p<0.01) and primary osteoarthrosis (p<0.05). The worse results were achieved for patients
with revisions and inflamatory diseases. No evidence of loosening was found. The placement of
threaded cups was more horizontal. Male sex was associated with developing of heterotopic ossification.
There were 7% of dislocations associated with a longes distance from the teardrop
and as shorter length of the calcar from the lesser trochanter.
and 77 fixed with screws, were reviewed. The average follow-up period was 3.8 years. The
results have been very encouraging, obtaining 9 3% of excellent and good results with threaded
cups and 8 3% when fixed with screws. Threaded cups had better scores for avascular necrosis
(p<0.01) and primary osteoarthrosis (p<0.05). The worse results were achieved for patients
with revisions and inflamatory diseases. No evidence of loosening was found. The placement of
threaded cups was more horizontal. Male sex was associated with developing of heterotopic ossification.
There were 7% of dislocations associated with a longes distance from the teardrop
and as shorter length of the calcar from the lesser trochanter.
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