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Updated: Aug 2, 2025

Treatment of Ankle Osteoarthritis with Total Ankle Replacement Through a Lateral Transfibular Approach
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Partial talar replacement with a novel 3D printed prosthesis.

Yidong Cui1, Bin Chen1, Gang Wang1

  • 1Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, P.R. China.

Computer Assisted Surgery (Abingdon, England)
|April 18, 2023
PubMed
Summary

A novel 3D printed partial talus replacement (PTR) offers a promising solution for talus avascular necrosis (AVN) and collapse. This innovative surgical technique reconstructs the talus, leading to improved patient outcomes and function.

Keywords:
3D printingAvascular necrosisTaluspartial talus replacement

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Area of Science:

  • Orthopedic Surgery
  • Biomedical Engineering
  • Radiology

Background:

  • Talus avascular necrosis (AVN) presents significant treatment challenges due to unique anatomical factors.
  • Current treatment options for talus AVN are limited, necessitating the development of novel surgical approaches.
  • Partial talus necrosis and collapse (TNC) requires innovative reconstructive methods.

Purpose of the Study:

  • To introduce and evaluate a new surgical technique, 3D printed partial talus replacement (PTR), for treating partial talus necrosis and collapse (TNC).
  • To assess the feasibility and efficacy of using 3D printed prosthetics in talus reconstruction.

Main Methods:

  • A male patient diagnosed with talus AVN underwent the novel 3D printed partial talus replacement (PTR) procedure.
  • Patient-specific titanium prostheses were designed using 3D computed tomography (CT) imaging and implanted during talus replantation surgery.
  • Outcomes were evaluated over a 24-month follow-up period, including VAS scores, AOFAS, range of motion, and complications.

Main Results:

  • Successful anatomical reconstruction of the talus was achieved using the 3D printed prosthesis.
  • Significant improvement in patient-reported outcomes was observed, with VAS scores decreasing from 5 to 1.
  • The American Orthopedic Foot and Ankle Score (AOFAS) improved substantially from 70 to 93, indicating enhanced function.

Conclusions:

  • 3D printed partial talus replacement (PTR) demonstrates potential as an effective treatment for talus AVN and TNC.
  • This innovative technique offers satisfactory outcomes and may become a preferred option for managing partial talus avascular necrosis and collapse.
  • The study highlights the successful application of 3D printing in orthopedic reconstructive surgery.