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

Journal of Orthopaedics and Traumatology

Angela Notarnicola¹  Lorenzo Moretti¹  Biagio Moretti¹  Silvana De Giorgi¹  Silvio Tafuri¹  Andrea Piazzolla¹  Giuseppe Solarino¹ 

[1]University of Bari$$

关键词: Alumina-on-alumina ceramic bearings;   

DOI  :  10.1007/s10195-011-0174-7

学科分类：骨科学

来源: Springer

【 摘 要 】

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.

【 授权许可】

Unknown