Large head ceramic-on-ceramic bearing in primary total hip arthroplasty: average 3-year follow-up of a multicentre study.
Hip Int
; 30(6): 711-717, 2020 Nov.
Article
em En
| MEDLINE
| ID: mdl-31296057
ABSTRACT
BACKGROUND:
Surgeons are increasingly using larger femoral head sizes in total hip arthroplasty (THA) to improve stability and reduce the rate of dislocation, 1 of the leading causes of revision surgery. Large ceramic head sizes up to 48 mm can now be used with monoblock acetabular components. National registries have shown promising results at short-term with large diameter ceramic-on-ceramic THA, with very low revision rates.This study reports on the average 3-year follow up of a press-fit monoblock large diameter acetabular shell with a pre-assembled ceramic liner, with emphasis on the radiographic outcome, complications related to the implantation of the cup, and the patient's clinical outcome.METHODS:
170 hips in 169 patients were reviewed at an average 38 ± 5.8 months following surgery.RESULTS:
The radiographic review revealed no acetabular cup loosening, no osteolysis and no cup migration. 1 acetabular cup was revised for malposition. The patient clinical outcome and the satisfaction rate were excellent. At 3 years, 7.1% of patients complained of groin pain and 3.5% spontaneously reported hip joint generated noise. 1 patient sustained a non-recurrent traumatic hip dislocation 2 years post surgery.CONCLUSIONS:
New technology should be introduced cautiously on the market. This is especially true for the large diameter ceramic monoblock acetabular component used in this study since it involves a new acetabular component design. At short term, we have not identified new modes of failure with this implant. Longer follow-up is still needed to assess the safety of large ceramic bearing in THA.Palavras-chave
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Base de dados:
MEDLINE
Assunto principal:
Cerâmica
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Artroplastia de Quadril
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Cabeça do Fêmur
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Luxação do Quadril
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Prótese de Quadril
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Acetábulo
Idioma:
En
Ano de publicação:
2020
Tipo de documento:
Article