- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02567058
Biomechanical and Ultrasonic Assessment of the Achilles Tendon in Vivo (MEDUSAA) (MEDUSAA)
Among Musculoskeletal disorders (MSD) the rupture of the Achilles tendon is the most common. Up today, the mechanical and elastic properties of the Achilles tendon are still unknown, and that both in healthy subjects in pathology. The viscoelastic properties or dynamic mechanical properties are directly related to the tendon of the health status and its elongation capacity.
The laboratory UMR Inserm U930 - CNRS ERL 3106 in Tours has developed a non-invasive ultrasonic device, named Achillus, which, via an ultrasonic probe, allowing to access the viscoelastic properties of the tendon during the contraction of the sural triceps.
This is what we want to do in this first protocol: in vivo observation of the normal values and variations, looking for changes related to hyper solicitation and finally trying to highlight a tendon fragility parameter for patients who have experienced of a Achilles tendon rupture.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Musculoskeletal disorders (MSD) are among the main causes of pain and disability in adults. Tendon disorders are an important part of MSD. Among them, the rupture of the Achilles tendon is the most common, with a prevalence of about 18 to 100000. The disorder mostly affects men between 30 and 50 years. Up today, the mechanical and elastic properties of the Achilles tendon are still unknown, and that both in healthy subjects in pathology. The viscoelastic properties or dynamic mechanical properties are directly related to the tendon of the health status and its elongation capacity. Additional tests that we have to explore the Achilles tendon are ultrasound and MRI. They bring mainly morphological information but can not demonstrate the mechanical properties of the tendon.
For this purpose, the laboratory UMR Inserm U930 - CNRS ERL 3106 in Tours has developed a non-invasive ultrasonic device, named Achillus, which, via an ultrasonic probe, allowing to access the viscoelastic properties of the tendon during the contraction of the sural triceps. It is therefore important in the exploratory work we propose to have a proven method of calibration of forces applied to the tendon, which is why an ergometer laboratory biomechanics and bioengineering at UT Compiègne is associated with our experiments.
No human study has yet been conducted to evaluate this method in medically relevant situations such as hyper solicitation and incorporated rupture.
This is what we want to do in this first protocol: in vivo observation of the normal values and variations, looking for changes related to hyper solicitation and finally trying to highlight a tendon fragility parameter for patients who have experienced of a Achilles tendon rupture.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
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Tours, France, 37044
- Univesity Hospital of Tours
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-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
Groupe I
- Male
- Between 18 and 60 years-old
- Informed consent form signed
- Affiliated to medical insurance
Groupe II
- Male
- Between 18 and 60 years-old
- Informed consent form signed
- Affiliated to medical insurance
- pathology of lower limb, from surgical treatment, and requiring an immobilization longer than one month and lower than two months, with discharge without support. Inclusion in the study will be done during within 48h from the onset of the immobilization
Groupe III
- Male
- Between 18 and 60 years-old
- Informed consent form signed
- Affiliated to medical insurance
- Antecedent of unilateral Achilles tendon breakage during the last 10 years (without breakage during the year previous the inclusion).
Exclusion Criteria:
Groupe I
- Know pathologies of collagen
- Antecedent of surgery on studied lower limb, located under the knee
- Pathology requiring a relief, a sport stoppage prescribed by a physician for a lower limb pathology during the last 12 months
- Muscular or neurologic pathology with impact on lower limbs
- Acute pathology able to compromise quality of the research (infectious, organic failure, pain …)
- Treatments able to affect the results of the research (myorelaxant, molecule changing the muscular tonus, quinolones …)
- Adult under guardianship
- Person under an exclusion period of other biomedical research
Groupe II
- Know pathologies of collagen
- Antecedent of surgery on studied lower limb, located under the knee
- Pathology requiring a relief, a sport stoppage prescribed by a physician for a lower limb pathology during the last 12 months
- Muscular or neurologic pathology with impact on healthy lower limb
- Acute pathology able to compromise quality of the research (infectious, organic failure, pain …)
- Treatments able to affect the results of the research (myorelaxant, molecule changing the muscular tonus, quinolones …)
- Adult under guardianship
- Person under an exclusion period of other biomedical research
Groupe III
- Know pathologies of collagen
- Antecedent of surgery on studied lower limb, located under the knee
- Pathology requiring a relief, a sport stoppage prescribed by a physician for a lower limb pathology during the last 12 months (including a controlateral Achilles tendon breakage)
- Muscular or neurologic pathology with impact on lower limbs
- Acute pathology able to compromise quality of the research (infectious, organic failure, pain …)
- Treatments able to affect the results of the research (myorelaxant, molecule changing the muscular tonus, quinolones …)
- Adult under guardianship
- Person under an exclusion period of other biomedical research
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Prevention
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: 3 groups of subjects
3 groups:
Each group have the same interventions : ultrasound exam, IPAQ questionnaire |
Ultrasound exam with :
Other Names:
IPAQ questionnaire
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Measures of received signals of the ultrasound sensors and measures of applied strength on the pedal during
Time Frame: up to 3 months
|
This is the measure of received signals of the ultrasound sensors and measures of applied strength on the pedal during plantar flexion efforts. Untreated data will be treated to extract this following parameters :
|
up to 3 months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
score IPAQ questionnaire
Time Frame: up to 3 months
|
Clinical parameter :score questionnaire of average physical activity of persons, determined by IPAQ questionnaire
|
up to 3 months
|
Examination data
Time Frame: baseline
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Examination data : age, size, weight, laterality, smoking history
|
baseline
|
time of hyper stress
Time Frame: up to 3 months
|
time of hyper stress
|
up to 3 months
|
Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Other Study ID Numbers
- AORT 2011-FP / MEDUSAA
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