Subtalar Arthritis, Subtalar Instability
Conditions
Keywords
Subtalar arthritis, Subtalar instability
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.
Interventions
OTHERDynamic CT of the ankle
during inversion and eversion mouvement, with Aquilion One Toshiba scanner
Sponsors
Central Hospital, Nancy, France
Study design
Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
DIAGNOSTIC
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes
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
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Talocalcaneal angle | baseline |
| Maximum exposed distance on superolateral surface of calcaneum | baseline |
| Minimum distance between sustentaculum tali and talus posteromedial tubercle | baseline |
| Maximum distance between sustentaculum tali and talus posteromedial tubercle | baseline |
| Maximum anterolateral talocalcaneal distance | baseline |
| Maximum posterolateral talocalcaneal distance | baseline |
| Minimum posterolateral talocalcaneal distance | baseline |
Countries
France
Outcome results
None listed