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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

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A Mouse Model of Ankle-Subtalar Complex Joint Instability

A Mouse Model of Ankle-Subtalar Complex Joint Instability

Published on: October 28, 2022

Ankle lateral ligament reconstruction for chronic instability.

Ren Yong¹, Kah Weng Lai², Lai Hock Ooi³

¹Department of Orthopaedic Surgery, Khoo Teck Puat Hospital, Singapore.

Journal of Orthopaedic Surgery (Hong Kong)

|April 30, 2015

Summary

This study shows that combining direct anatomic repair with augmented reconstruction using the peroneus brevis tendon is a viable surgical option for chronic ankle instability, leading to good functional outcomes.

Keywords:

ankle injuries lateral ligament, ankle

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Area of Science:

Orthopedic Surgery
Sports Medicine
Anatomy

Background:

Recurrent ankle inversion injuries often involve the anterior talofibular ligament (ATFL) and calcaneofibular ligament.
Chronic ankle instability can result from incomplete healing or inadequate treatment of these ligamentous injuries.
Surgical intervention aims to restore stability and function to the affected ankle.

Purpose of the Study:

To evaluate the outcomes of a combined surgical technique for chronic lateral ankle instability.
This technique involves direct anatomic reconstruction of the ATFL augmented with the peroneus brevis tendon.
The augmented graft is secured using a bio-absorbable interference screw.

Main Methods:

Fifteen patients (13 men, 2 women) with chronic ankle instability underwent the described surgical procedure.
The procedure included anatomical repair of the ATFL and augmentation with a split peroneus brevis tendon.
Outcomes were assessed using the American Orthopaedic Foot and Ankle Society (AOFAS) and Foot and Ankle Outcome Score (FAOS) at 6 months post-surgery.

Main Results:

No surgical or wound complications were reported.
Mean AOFAS score was 91.5 and mean FAOS score was 78.8, indicating good functional recovery.
Most patients experienced no or minimal limitations in daily and recreational activities, though some had residual hindfoot motion limitations.

Conclusions:

The combined direct anatomic and augmented reconstruction technique is a successful option for chronic ankle instability.
This method allows for early mobilization despite potential hindfoot motion limitations.
The use of peroneus brevis tendon graft and bio-absorbable screw fixation provides a stable and effective repair.