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Related Experiment Video

Updated: Jun 24, 2026

The Use of Mixed Reality in Custom-Made Revision Hip Arthroplasty: A First Case Report
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The Use of Mixed Reality in Custom-Made Revision Hip Arthroplasty: A First Case Report

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Acetabular revisions using trabecular metal cups and augments.

Jonathan P Van Kleunen1, Gwo-Chin Lee, Peter W Lementowski

  • 1Department of Orthopaedic Surgery, University of Pennsylvania Health System, Philadelphia, Pennsylvania 19104, USA.

The Journal of Arthroplasty
|April 3, 2009
PubMed
Summary

Trabecular metal (TM) shells and augments effectively treat acetabular revisions with significant pelvic bone loss. This study shows improved hip function and durable fixation, making TM a viable option for complex cases.

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Area of Science:

  • Orthopedic Surgery
  • Biomaterials Science

Background:

  • Acetabular revision surgery is challenging, particularly with significant pelvic bone loss.
  • Traditional implants may have limitations in achieving stable fixation in these complex cases.

Purpose of the Study:

  • To evaluate the efficacy of trabecular metal (TM) shells and augments in acetabular revisions with significant pelvic bone loss.
  • To assess clinical and radiographic outcomes of TM components in revision total hip arthroplasty.

Main Methods:

  • Retrospective review of 97 cases undergoing acetabular revision for loose total hip arthroplasty.
  • Inclusion criteria: Paprosky grade IIA or higher pelvic bone loss.
  • Treatment involved TM revision acetabular components with or without modular augments.

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Last Updated: Jun 24, 2026

The Use of Mixed Reality in Custom-Made Revision Hip Arthroplasty: A First Case Report
07:45

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Published on: August 4, 2022

Biotribological Testing and Analysis of Articular Cartilage Sliding against Metal for Implants
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Biotribological Testing and Analysis of Articular Cartilage Sliding against Metal for Implants

Published on: May 14, 2020

Main Results:

  • Average Harris hip score improved from 55 to 76 postoperatively.
  • 88% of cups showed no lucent lines, indicating stable fixation.
  • Low revision rates for infection (8%) and instability (1%); no aseptic failures.

Conclusions:

  • Trabecular metal acetabular cups and shells are effective for revising failed components in patients with substantial pelvic bone loss.
  • TM components provide durable fixation and functional improvement in complex acetabular reconstructions.
  • The use of modular augments further enhances reconstructive capabilities in challenging cases.