Long-term results of 32-mm alumina-on-alumina THA for avascular necrosis of the femoral head.

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Abstract

BACKGROUND: Ceramic bearings in total hip arthroplasty (THA) have been introduced in clinical practice to minimize the problem of polyethylene particle-induced osteolysis. The aim of the study is to report the results of 68 consecutive alumina-on-alumina THAs done in 61 patients for avascular necrosis (AVN) of the femoral head. MATERIALS AND METHODS: In all implants a press-fit cup was used; it was combined with a 32-mm alumina head and with titanium-alloy stems. The mean age at surgery was 50 years. At an average follow-up of 13 years two hips have been revised, one for periprosthetic infection and one for excessive abduction of the cup. RESULTS: No revision for aseptic loosening is recorded; one anatomical cementless femoral stem had radiological evidence of definite aseptic loosening. No dislocations occurred, and no osteolysis was observed. CONCLUSIONS: The results support the application of alumina-alumina THA for long-lasting replacements.

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  • PIAZZOLLA A.;NOTARNICOLA A.;MORETTI B.;SOLARINO G.;MORETTI L.;DE GIORGI S.;TAFURI S.

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Anno di pubblicazione

2012

ISSN

1590-9921

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Numero di citazioni Wos

1

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Numero di citazioni Scopus

27

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