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Related Experiment Videos

[Long-term results with Zweymuller cement-free Alloclassic stem].

M Weissinger1, C Helmreich

  • 1Abteilung für Orthopädie und orthopädische Chirurgie, A. ö. Krankenhau Zwettl, Osterreich. Manfred.Weissinger@kh.zwettl.at

Zeitschrift Fur Orthopadie Und Ihre Grenzgebiete
|August 7, 2001
PubMed
Summary

The Zweymüller cementless Alloclassic stem shows excellent long-term results in hip arthroplasty, with 90% excellent clinical outcomes after over a decade. This study confirms its reliability for various patient demographics.

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Area of Science:

  • Orthopedic Surgery
  • Biomaterials Science

Context:

  • Hip arthroplasty is a common procedure for treating severe hip joint damage.
  • Cementless hip implants offer potential for long-term osseointegration and fixation.

Purpose:

  • To evaluate the long-term clinical and radiological outcomes of the Zweymüller cementless Alloclassic stem.
  • To assess the survivorship and complication rates of this specific hip prosthesis design.

Summary:

  • A retrospective study of 133 patients (out of 206) followed for an average of 10.6 years post-hip arthroplasty using the Zweymüller cementless Alloclassic stem.
  • Excellent clinical results (90%) were observed, with minimal intraoperative complications (1.5%) and low revision rates (6.7%). No stem sinking or mechanical loosening occurred. Average polyethylene wear was 1 mm.
  • The study highlights the durability and efficacy of the Zweymüller stem, noting its suitability for diverse femur morphologies and patient age groups due to its design and biocompatible materials.

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Impact:

  • Provides robust evidence supporting the long-term efficacy of the Zweymüller cementless Alloclassic stem in hip arthroplasty.
  • Offers valuable insights for orthopedic surgeons regarding implant selection and patient outcomes.
  • Contributes to the understanding of cementless stem performance in a large patient cohort over an extended follow-up period.