Dynamic Imaging of the Subtalar Instability

Central Hospital, Nancy, France60 enrolled

Overview

The purpose of this study is to describe normal dynamic computed tomography anatomy of hind foot in inversion/eversion movement, and to define diagnostic criteria for subtalar instability.

Dynamic CT (Aquilion One Toshiba) of the ankle during inversion and eversion movement will be performed in patients from three groups: healthy volunteers, patients with subtalar arthritis, and patients with suspicion of subtalar instability.

Study Type

INTERVENTIONAL

Allocation

NON_RANDOMIZED

Purpose

DIAGNOSTIC

Masking

NONE

Enrollment

Conditions

Subtalar Arthritis Subtalar Instability

Interventions

Dynamic CT of the ankleOTHER

during inversion and eversion mouvement, with Aquilion One Toshiba scanner

Eligibility

Sex: ALLMin age: 18 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * Group Instability: suspicion of subtalar instability * Group Arhtritis: subtalar stiffness * Group Healthy volunteers: healthy volunteers * conscious and cooperating * written consent obtained after oral and written clear and intelligible information * no pregnancy Exclusion Criteria: * pregnancy * unable to understand information about this study * unable to understand the movement of inversion / eversion of ankle * absence of affiliation to social security

Locations (1)

Central Hospital

Nancy, France, France

Outcomes

Primary Outcomes

Talocalcaneal angle

Time frame: baseline

Maximum exposed distance on superolateral surface of calcaneum

Time frame: baseline

Minimum distance between sustentaculum tali and talus posteromedial tubercle

Time frame: baseline

Maximum distance between sustentaculum tali and talus posteromedial tubercle

Time frame: baseline

Maximum anterolateral talocalcaneal distance

Time frame: baseline

Maximum posterolateral talocalcaneal distance

Time frame: baseline

Minimum posterolateral talocalcaneal distance

Time frame: baseline

Data from ClinicalTrials.gov

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