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Related Experiment Video

Updated: May 1, 2026

Treatment of Ankle Osteoarthritis with Total Ankle Replacement Through a Lateral Transfibular Approach
09:01

Treatment of Ankle Osteoarthritis with Total Ankle Replacement Through a Lateral Transfibular Approach

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Total Ankle Arthroplasty Accuracy and Reproducibility Using Preoperative CT Scan-Derived, Patient-Specific Guides.

Gregory C Berlet1, Murray J Penner2, Sarah Lancianese3

  • 1Orthopedic Foot & Ankle Center, Westerville, OH, USA gberlet@gmail.com.

Foot & Ankle International
|April 11, 2014
PubMed
Summary

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Articles linked to this work by shared authors, journal, and citation graph.

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Long-term risk of subtalar joint arthritis after stemmed total ankle replacement.

The Journal of foot and ankle surgery : official publication of the American College of Foot and Ankle Surgeons·2026
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Short-term risk of subtalar joint arthritis after stemmed total ankle replacement.

The Journal of foot and ankle surgery : official publication of the American College of Foot and Ankle Surgeons·2025
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Anterior Approach Total Ankle Arthroplasty with Patient-Specific Cut Guides.

JBJS essential surgical techniques·2025
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Tranexamic acid and its outcomes in foot and ankle surgical procedures: A meta-analysis.

The Journal of foot and ankle surgery : official publication of the American College of Foot and Ankle Surgeons·2025
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Corrigendum to "A Study of Tibial Cyst Formation in Modular Stemmed Total Ankle Arthroplasty: Exploring a Possible Relationship to Smooth and Porous Coating on the Stem Segments" [Journal of Foot and Ankle Surgery 62 (2023) 756-763].

The Journal of foot and ankle surgery : official publication of the American College of Foot and Ankle Surgeons·2025
Same author

A Study of Tibial Cyst Formation in Modular Stemmed Total Ankle Arthroplasty: Exploring a Possible Relationship to Smooth and Porous Coating on the Stem Segments.

The Journal of foot and ankle surgery : official publication of the American College of Foot and Ankle Surgeons·2023

This study shows that patient-specific guides for total ankle arthroplasty (TAA) offer reliable implant placement. The technology achieved less than 2 degrees of deviation, improving accuracy for TAA procedures.

Area of Science:

  • Orthopaedic Surgery
  • Biomedical Engineering
  • Medical Imaging

Background:

  • Preoperative navigation offers benefits like patient-specific alignment in total knee arthroplasty.
  • This technology was newly applied to total ankle arthroplasty (TAA).
  • The study assessed the repeatability of patient-specific guide placement for tibia and talus components in TAA.

Purpose of the Study:

  • To evaluate the repeatability of patient-specific guide placement in TAA.
  • To determine the deviation between the preoperative plan and actual implant placement.
  • To assess the accuracy of custom guides for achieving patient-specific ankle alignment.

Main Methods:

  • 15 cadaveric lower extremity limbs underwent CT scans and 3D model creation.
  • Virtual TAA was performed, and custom guides were engineered based on patient-specific anatomy.
Keywords:
arthritispreoperative navigation systemtotal ankle arthroplasty

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  • Orthopaedic surgeons placed the guides multiple times to assess variability, with final implant positions verified by CT scans and compared to the preoperative plan.

    • Main Results:

    • Intraobserver variation for tibia and talus guide placement was minimal across all rotational degrees of freedom (e.g., <1.2 degrees for internal/external rotation).
    • Average deviation between planned and actual implant placement was less than 2 degrees and 1.4 mm in all tested specimens.
    • Reproducibility of tibial component placement was within 2 degrees of the intended target.

    Conclusions:

    • Preliminary data indicate that preoperative navigation with custom guides ensures reliable and reproducible TAA implant placement.
    • The achieved accuracy (less than 2 degrees deviation) surpasses that of traditional instrumentation in similar studies.
    • This technology shows promise for becoming a benchmark for future total ankle arthroplasty procedures.