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Ankle Joint

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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Related Experiment Video

Updated: Nov 19, 2025

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

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

Published on: January 24, 2018

Total Ankle Arthroplasty With Valgus Deformity.

Camilo Piga¹, Camilla Maccario², Riccardo D'Ambrosi³

¹Equipo de Tobillo y Pie, Hospital del Trabajador, Santiago, Chile.

Foot & Ankle International

|February 1, 2021

Summary

Lateral transfibular total ankle replacement (LTTAR) effectively corrects valgus deformities in ankle osteoarthritis, showing similar short-term outcomes to neutral alignments. Clinical results significantly improve for both groups.

Keywords:

coronal deformity malalignment total ankle replacement valgus deformity

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An Anatomical Study of Nerves at Risk During Minimally Invasive Hallux Valgus Surgery

An Anatomical Study of Nerves at Risk During Minimally Invasive Hallux Valgus Surgery

Published on: February 17, 2018

Area of Science:

Orthopedic Surgery
Biomechanical Engineering
Medical Imaging

Background:

Coronal plane deformity is prevalent in end-stage ankle osteoarthritis.
Total ankle arthroplasty indications are expanding to severe coronal deformities with positive outcomes.
Lateral transfibular total ankle replacement (LTTAR) outcomes in valgus deformities require further investigation.

Purpose of the Study:

To evaluate if LTTAR outcomes in valgus ankle deformities are comparable to those with neutral alignment.
To assess the efficacy of LTTAR in correcting coronal plane deformities.
To analyze short-term clinical and radiographic results of LTTAR in valgus ankles.

Main Methods:

Retrospective cohort study of 228 LTTARs.
Patients grouped into neutral (<10° coronal deformity) and valgus (>10° valgus) based on preoperative tibiotalar angle (TTS).
Clinical outcomes assessed via AOFAS, VAS, and SF-12 scores; radiographic evaluation included standard ankle views; minimum 2-year follow-up.

Main Results:

Significant postoperative improvements in AOFAS, VAS, and SF-12 scores across both groups (P < .001).
No significant differences between neutral and valgus groups in TTS, lateral distal tibial angle, or anterior distal tibial angle at follow-up (P > .05).
Valgus alignment group demonstrated maintained correction similar to the neutral group.

Conclusions:

LTTAR effectively corrects and maintains alignment in valgus ankle deformities at short-term follow-up.
Clinical outcomes significantly improve irrespective of preoperative valgus deformity.
LTTAR is a viable option for ankle osteoarthritis with valgus deformity.