Dynamic Imaging of the Subtalar Instability

Not Applicable

Completed

• Conditions: Subtalar Instability; Subtalar Arthritis
• Interventions: Other: Dynamic CT of the ankle

• Registration Number: NCT02887131
• Lead Sponsor: Central Hospital, Nancy, France

Brief Summary

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.

Detailed Description

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 Timeline

• Study Start: 2011-11
• Study First Submitted: 2012-02-29
• Primary Completion: 2012-11
• Study Completion: 2012-11
• Status Verified: 2016-08
• Study First Submitted QC: 2016-08-29
• Study First Posted: 2016-09-02
• Last Update Submitted: 2016-09-02
• Last Update Posted: 2016-09-05

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 60

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

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Healthy volunteers	Dynamic CT of the ankle	-
Instability	Dynamic CT of the ankle	-
Arthritis	Dynamic CT of the ankle	-

Primary Outcome Measures

Name	Time	Method
Talocalcaneal angle	baseline
Minimum posterolateral talocalcaneal distance	baseline
Maximum anterolateral talocalcaneal distance	baseline
Maximum posterolateral talocalcaneal distance	baseline
Maximum distance between sustentaculum tali and talus posteromedial tubercle	baseline
Maximum exposed distance on superolateral surface of calcaneum	baseline
Minimum distance between sustentaculum tali and talus posteromedial tubercle	baseline

Trial Locations

Locations (1)

Central Hospital; 🇫🇷 Nancy, France