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Related Experiment Video

Updated: Jul 20, 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

[Cementless Spotorno stem. Long term results].

Francisco J Modrego Aranda1, Juan A Molina Guerrero

  • 1Servicio de Traumatología y Cirugía Ortopédica, Hospital de Barbastro. javmod@terra.es

Revista De La Facultad De Ciencias Medicas (Cordoba, Argentina)
|September 16, 2006
PubMed
Summary

The Spotorno stem, a cementless hip implant, demonstrated excellent long-term stability and clinical outcomes in a 134-month follow-up study. This tapered, straight stem design showed 100% stable fixation with no aseptic loosening in 26 patients.

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Area of Science:

  • Orthopedic Surgery
  • Biomaterials Science
  • Medical Device Engineering

Context:

  • Cementless hip arthroplasty aims for long-term implant stability.
  • The Spotorno stem is a novel design utilizing a tapered, straight, fluted geometry.
  • Its rectangular cross-section and titanium-aluminum-niobium alloy composition are key features.

Purpose:

  • To evaluate the clinical and radiological outcomes of the Spotorno cementless hip stem.
  • To assess the long-term stability and fixation of this implant design.
  • To determine the rate of aseptic loosening and overall patient satisfaction.

Summary:

  • A retrospective review of 26 Spotorno stems with a mean follow-up of 134 months was conducted.
  • Initial stability is achieved through proximal wedging, with distal rotational stability provided by the rectangular cross-section.

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Last Updated: Jul 20, 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

Use of Human Perivascular Stem Cells for Bone Regeneration
07:05

Use of Human Perivascular Stem Cells for Bone Regeneration

Published on: May 25, 2012

  • The titanium-aluminum-niobium alloy promotes osseous tissue ongrowth for secondary stabilization.

    • Impact:

    • 93% of hips achieved excellent or good clinical results.
    • 100% of stems demonstrated stable fixation at long-term follow-up.
    • No radiological evidence of aseptic stem loosening was observed, highlighting the implant's durability.