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Long-term results with the cementless Alloclassic brand hip arthroplasty system
Herwig Pieringer1, Vinzenz Auersperg, Walter Griessler
1Orthopaedic Department, Allgemeines Krankenhaus Linz, Krankenhausstrasse 9, 4020 Linz, Austria.
The Journal of Arthroplasty
|May 3, 2003
Summary
This study evaluated 100 Alloclassic hip prostheses, finding a high survival rate of 96.9% for the cup and 100% for the stem after over a decade. Clinical outcomes were favorable, with an average Harris Hip Score of 85.4.
Area of Science:
- Orthopedic Surgery
- Biomaterials Science
Background:
- Total hip arthroplasty (THA) is a common procedure for hip joint diseases.
- Long-term outcomes of specific hip prosthesis designs are crucial for clinical decision-making.
Purpose of the Study:
- To evaluate the long-term clinical and radiological outcomes of the Alloclassic hip prosthesis.
- To determine the survival rate of the Alloclassic prosthesis in primary total hip arthroplasty.
Main Methods:
- Retrospective analysis of 100 primary total hip arthroplasties using Alloclassic prostheses.
- Clinical and radiological follow-up of 75 patients for a minimum of 10 years.
- Assessment of prosthesis survival based on aseptic loosening as the endpoint.
Main Results:
- Prosthesis survival rate at 132 months was 96.9% for the cup and 100% for the stem.
- Average Harris Hip Score was 85.4 points, indicating good functional outcome.
- Radiolucent lines and osteolyses were observed, predominantly in the proximal stem regions.
Conclusions:
- The Alloclassic hip prosthesis demonstrates excellent long-term survival rates in primary total hip arthroplasty.
- Good functional results were achieved, though radiological signs of loosening and bone resorption warrant monitoring.