A Mouse Model of Ankle-Subtalar Complex Joint Instability

Shuo Wang; Peixin Liu; Chunzhuo Hua; Hongtao Zhang; Jia Yu

doi:10.3791/64481

JoVE Journal
Biology

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A Mouse Model of Ankle-Subtalar Complex Joint Instability

足首-距骨下複合関節不安定性のマウスモデル

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09:14 min

October 28, 2022

DOI: 10.3791/64481-v

Shuo Wang*^1,2, Peixin Liu*^1,2, Chunzhuo Hua^1,2, Hongtao Zhang^1,2, Jia Yu^1,2

¹Department of Orthopaedics,The First Affiliated Hospital of Soochow University, ²Orthopaedic Institute,Soochow University

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Overview

The study focuses on the ankle-subtalar complex joint (ASCJ), essential for balance control during daily activities. It presents a mouse model of ligament transection-induced instability in the ASCJ, providing insights for clinical foot disease research.

Key Study Components

Research Area

Orthopedic research
Biomechanics
Animal models for foot diseases

Background

The ASCJ's role in foot stability and injury response.
Importance of accurate animal models for clinical relevance.
Understanding sports-related joint instability.

Methods Used

Mouse model of ligament transection
Balance and gait training assessments
Histological examination of joint architecture

Main Results

Successful establishment of a clinically relevant ASCJ instability model.
Assessment of gait performance and balance post-surgery.
Histological verification of joint structure post-dissection.

Conclusions

The model enhances understanding of foot joint instability.
It provides a platform for studying diagnosis and treatment strategies for foot diseases.

Frequently Asked Questions

What is the ASCJ and why is it important?

The ankle-subtalar complex joint (ASCJ) is critical for maintaining balance and stability during movement.

How does ligament transection affect the ASCJ?

Ligament transection leads to instability in the ASCJ, affecting gait and balance.

What methods were used to assess the animals in this study?

The study employed balance beam tests and gait training to evaluate animal performance.

Why is a mouse model used for studying foot diseases?

Mice provide a controlled environment suitable for replicating human foot conditions and studying pathophysiological mechanisms.

What are the implications of this research?

This research aims to inform clinical approaches to diagnosing and treating foot diseases stemming from joint instability.

How does this model contribute to future research?

It allows for further investigation into mechanistic aspects of ankle instability and potential therapeutic interventions.

What histological assessments were performed in the study?

Histological examinations were conducted to observe structural changes in the ASCJ post-surgery, verifying joint integrity.

足首距骨下複合関節(ASCJ)は足のコアであり、日常生活におけるバランス制御に重要な役割を果たします。スポーツ傷害は、しばしばこの関節の不安定性につながります。ここでは、靭帯離断によるASCJの不安定性のマウスモデルについて述べる。

ASCJ無力マウスモデルの確立に成功したことは、単純な足首障害動物モデルを拡張し、臨床的足疾患の研究のための新しい概念を提供します。より実際の臨床状況に即した動物モデルを確立し、足の病気の診断と治療に関するさらなる研究に活用しています。実験の1週間前に、マウスに平均台と歩行訓練を行い、平均台またはU字型のパイプの端から端まで、止まることなく移動します。

マウスの右後肢の足首関節の毛を麻酔して除去した後、露出した皮膚をヨウ素綿棒で消毒します。滅菌手術用パッドを使用して、マウスを顕微鏡手術動物の手術室に移します。横頸部および前距腓靭帯群については、右足首関節の上の皮膚にメスで7ミリメートルの斜め下向きの縦方向切開を行います。

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