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Revision of Stemmed Agility Implants.

Michael M Brage1, Uma E Ramadorai2

  • 1Department of Orthopaedics and Sports Medicine, Harborview Medical Center, University of Washington, 325, 9th Avenue, Seattle, WA 98104, USA.

Foot and Ankle Clinics
|May 16, 2017
PubMed
Summary

Total ankle arthroplasty survivability has improved with modern implants. Revision surgery for talar subsidence with stemmed components can be challenging due to bone ingrowth and loss.

Keywords:
AnkleArthroplastyDePuy AgilityINBONERevisionStemmed

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Area of Science:

  • Orthopedic surgery
  • Biomaterials engineering
  • Musculoskeletal research

Background:

  • Total ankle arthroplasty (TAA) has seen significant advancements over the past two decades.
  • Early TAA designs demonstrated improved survivability over historical implants.
  • Talar subsidence is a complication necessitating revision strategies.

Purpose of the Study:

  • To review the challenges and considerations for revision surgery in total ankle arthroplasty.
  • To discuss the use of stemmed components for managing talar subsidence.
  • To highlight difficulties associated with removing stemmed components during revision.

Main Methods:

  • Literature review of total ankle arthroplasty outcomes and revision techniques.
  • Analysis of implant survivability data for early and modern TAA designs.
  • Examination of biomechanical principles for stemmed component revision.

Main Results:

  • Modern total ankle implants show enhanced survivability compared to older models.
  • Stemmed components offer improved stability in cases of talar subsidence.
  • Implant ingrowth and associated bone loss complicate the removal of stemmed revision components.

Conclusions:

  • Advancements in total ankle arthroplasty have improved patient outcomes.
  • Stemmed components are a viable option for revision TAA with talar subsidence.
  • Surgical techniques must address bone ingrowth and loss during stemmed component removal.