Chronic Instability of Ankle Joint, Lateral Ligament Complex Injury of Ankle
Conditions
Keywords
Lateral Ligament complex, Ankle, Diagnostic Methods, Chronic Lateral Instability of Ankle
Brief summary
Comparative Study on Accuracy of Different Diagnostic Methods of Lateral Collateral Ligament Injury of Ankle
Detailed description
Background: The lateral ligament complex of ankle joint consisting of the anterior talofibular ligament (ATFL), the calcaneofibular ligament (CFL), and the posterior talofibular ligament (PTFL), is often injured by an ankle sprain. Improper diagnosis and treatment of lateral ligament complex injury are not only prone to recurrent sprain, pain, swelling and other symptoms, but also can lead to chronic lateral ankle instability, and osteoarthritis, which could seriously affect the joint motor function. Method and objective: This study is a prospective diagnostic test. By comparing the sensitivity and specificity of stress X-ray, B-ultrasound, Computed tomography (CT), and Magnetic resonance imaging (MRI), and analyzing the imaging manifestations and characteristics of different diagnostic methods of lateral chronic ankle instability, We aim to propose the criteria of the imaging diagnosis of lateral ankle ligament injury.
Interventions
All patients suspected chronic ankle instability, will perform an anterior drawer test, stress ultrasound, computed tomography, magnetic resonance imaging of ankle. Patients with chronic ankle instability will be recommended to perform an arthroscopic repair if non-operative treatment failed.
Sponsors
Study design
Eligibility
Inclusion criteria
* Chronic lateral ankle ligament injury due to ankle sprain in patients over 16 years of age.
Exclusion criteria
* Acute and subacute injury of the lateral ligament complex of the ankle joint (less than 3 months), malalignment of ankle (more than 5 degrees), osteoarthritis (stage IV).
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| anterior talar translation and talar tilt | before operation | Assess the instability through stress X ray of the ankle |
| length of ATFL and CFL in relax and stress position | before operation | Assess the instability through Ultrasound of the ankle |
| Morphology of ATFL and CFL | before operation | Assess the ATFL and CFL through MRI of the ankle |
| status of ATFL and CFL | during operation | evaluation of ATFL and CFL during operation |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| avulsion fracture | before operation | avulsion fracture found by X ray, Ultrasound, CT or MRI |
| osteophyte | before operation | osteophyte found by X ray, Ultrasound, CT or MRI |
Countries
China