The cone hip stem: a prospective study of 13 patients followed for 5 years with RSA.
Acta Orthop Scand
; 74(5): 525-30, 2003 Oct.
Article
em En
| MEDLINE
| ID: mdl-14620971
ABSTRACT
We operated on 13 patients (14 hips) with dysplastic hips, mean age 42 (28-58) years, with a cementless Cone stem and followed them for 5 years, using the Merle d'Aubigné clinical score, conventional radiography and repeated radiostereometry analyses. The clinical scores improved markedly at 4 months and still more throughout the study. None of the patients complained of thigh pain. No stem showed radiographic subsidence, but 3 stems had radiolucent zones probably indicating fibrous ingrowth. Micromigration was measured at 4 months, 1, 2 and 5 years. The mean subsidence after 5 years was 0.27 mm and the mean posterior micromigration of the head was 0.74 mm. Most of the micromigration took place within the first 4 months. We conclude that the uncemented Cone stem used in dysplastic hips has shown a good clinical outcome so far and was found to be stable on conventional radiographs and using RSA technique.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Luxação do Quadril
/
Prótese de Quadril
Tipo de estudo:
Observational_studies
Limite:
Adult
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Acta Orthop Scand
Ano de publicação:
2003
Tipo de documento:
Article
País de afiliação:
Suécia