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Related Experiment Video

Updated: Jun 24, 2026

Individualized Stem-positioning in Calcar-guided Short-stem Total Hip Arthroplasty
09:31

Individualized Stem-positioning in Calcar-guided Short-stem Total Hip Arthroplasty

Published on: February 27, 2018

Echelon stems and primary total hip replacement surgery.

Peter M Lewis1, Michael Olsen, Emil H Schemitsch

  • 1Division of Orthopaedics, Department of Surgery, St. Michael's Hospital, 30 Bond Street, Toronto, ON, Canada M5B1W8.

Orthopedics
|March 21, 2009
PubMed
Summary

The Echelon Primary femoral stem shows excellent long-term survival and patient outcomes in hip replacement surgery. This study confirms its reliability for treating osteoarthritis with sustained functional improvements.

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Area of Science:

  • Orthopedic surgery
  • Biomaterials science
  • Clinical outcomes research

Background:

  • The Echelon Primary femoral stem is a porous-coated cobalt chrome hip implant.
  • Hip replacement surgery aims to restore function and alleviate pain in patients with osteoarthritis.
  • Long-term data on the performance of specific femoral stems is crucial for clinical decision-making.

Purpose of the Study:

  • To evaluate the survivorship and clinical outcomes of the Echelon Primary femoral stem.
  • To assess patient-reported outcomes using validated scoring systems.
  • To determine the long-term efficacy of this specific hip implant design.

Main Methods:

  • Prospective review of 392 Echelon Primary femoral stems.
  • Analysis of stem survivorship for aseptic loosening and revision for any reason at 8 years.

Related Experiment Videos

Last Updated: Jun 24, 2026

Individualized Stem-positioning in Calcar-guided Short-stem Total Hip Arthroplasty
09:31

Individualized Stem-positioning in Calcar-guided Short-stem Total Hip Arthroplasty

Published on: February 27, 2018

  • Assessment of patient outcomes using the Western Ontario and McMaster Universities Osteoarthritis Index (WOMIATOA) and the Short-Form Health Survey (SF-36).

    • Main Results:

    • Excellent stem survivorship at 8 years: 99.3% for aseptic loosening and 98.3% for revision.
    • Significant and sustained improvement in WOMIATOA and SF-36 scores post-replacement.
    • 82% of patients reported good or excellent outcomes at the mean follow-up.
    • No modifications in stem manufacture or design occurred during the study period.

    Conclusions:

    • The Echelon Primary femoral stem demonstrates high survivorship and excellent patient-reported outcomes.
    • This implant provides reliable and durable results for hip replacement surgery.
    • The consistent design and manufacturing contribute to the observed favorable long-term performance.