Published in:
Open Access
01-03-2012 | Original Article
Long-term results of 32-mm alumina-on-alumina THA for avascular necrosis of the femoral head
Authors:
Giuseppe Solarino, Andrea Piazzolla, Angela Notarnicola, Lorenzo Moretti, Silvio Tafuri, Silvana De Giorgi, Biagio Moretti
Published in:
Journal of Orthopaedics and Traumatology
|
Issue 1/2012
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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.