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Related Experiment Video

Updated: Jun 8, 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

Published on: January 24, 2018

Insert position in three-component total ankle replacement.

Alexej Barg1, Andreas Elsner, Bavornrit Chuckpaiwong

  • 1Clinic of Orthopaedic Surgery, Kantonsspital, Rheinstrasse 26, CH-4410 Liestal, Switzerland. alexejbarg@mail.ru

Foot & Ankle International
|October 1, 2010
PubMed
Summary
This summary is machine-generated.

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Ankle Joint01:10

Ankle Joint

The ankle is formed by the talocrural joint (crural = leg). It consists of the articulations between the talus bone of the foot and the distal ends of the tibia and fibula of the leg. The superior aspect of the talus bone is square-shaped and has three areas of articulation. The top of the talus articulates with the inferior tibia. This is the portion of the ankle joint that carries the body weight between the leg and foot. The sides of the talus are firmly held in position by the articulations...

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The latest ankle replacement implants maintain component alignment over time, similar to older designs. This suggests improved adaptability to soft tissue loads without compromising stability.

Area of Science:

  • Orthopedic surgery
  • Biomedical engineering
  • Radiology

Background:

  • Total ankle replacement (TAR) is a key treatment for end-stage ankle osteoarthritis.
  • Modern TAR implants feature an interface between polyethylene and the tibial component, potentially improving component adaptation and reducing wear.
  • No prior studies have assessed changes in the spatial relationship of ankle implant components over time.

Purpose of the Study:

  • To evaluate the long-term spatial relationship between talar and tibial components in HINTEGRA® total ankle replacements.
  • To determine if the anteroposterior offset changes post-surgery.

Main Methods:

  • Radiographic assessment of 368 primary HINTEGRA® total ankle replacements.
  • Analysis of anteroposterior offset, defined as the distance between the tibiotalar joint center and tibial longitudinal axis.

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Last Updated: Jun 8, 2026

Treatment of Ankle Osteoarthritis with Total Ankle Replacement Through a Lateral Transfibular Approach
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  • Follow-up measurements taken over a mean period of 51.2 months.

    • Main Results:

    • The mean anteroposterior offset ratio was consistently near zero (0.0 ± 0.06).
    • This offset ratio remained stable throughout the follow-up period.
    • No significant changes in component positioning were observed over time.

    Conclusions:

    • The latest three-component ankle prostheses demonstrate stable component positioning, comparable to two-component designs.
    • These implants may offer an advantage by allowing individualized polyethylene insert positioning.
    • This adaptability can potentially optimize response to soft tissue loads in diverse ankle configurations.