Modeling Spinal Mobility in Ankylosing Spondylitis: Towards New Telekinetic Biomarkers
- Conditions
- Ankylosing Spondylitis
- Interventions
- Device: XSENS-Awinda
- Registration Number
- NCT05570656
- Lead Sponsor
- University Hospital, Montpellier
- Brief Summary
Ankylosing spondylitis (AS) is a chronic inflammatory rheumatic disease that mainly affects the spine and pelvis in its axial form. It is responsible for chronic inflammatory pain and sometimes ankylosis with significant functional retention.
Clinicians need markers capable of precisely measuring the restriction of range of motion in these patients, reflections of the activity and/or sequelae of the disease.
The Inverstigators validated movement markers in the AS by a device including inertial sensors (XSENS) and computer modeling. The accuracy and repeatability of the XSENS-Awinda system compared to the reference measurement system have been demonstrated. The XSENS-Awinda device offers new real-time evaluation possibilities for quantitative gait analysis. This opens the way to new diagnostic tools, prognostics and therapeutic perspectives for the clinician.
- Detailed Description
Ankylosing spondylitis (AS) is a chronic inflammatory rheumatic disease that mainly affects the spine and pelvis in its axial form. It is responsible for chronic inflammatory pain and sometimes ankylosis with significant functional retention. Today, these patients benefit from treatments by biotherapy but the functional monitoring of the therapeutic response is based on the clinical examination, questionnaires, and the measurement of CRP (C reactive Protein).
Clinicians need markers capable of precisely measuring the restriction of range of motion in these patients, reflections of the activity and/or sequelae of the disease. The prevention and/or the restoration of these movement limitations, responsible for gait/attitude/balance disorders, are also among the therapeutic objectives of AS.
In the AS, the synergy between the trunk and the lower limbs is altered with a restriction of the movements of the trunk in the three planes of space. The study of the kinematic variability seems to show a loss of complexity. In addition, MRI morphological examinations are insufficient to assess stiffness and functional disability related to AS.
The investigators validated movement markers in the AS by a device including inertial sensors (XSENS) and computer modeling. The accuracy and repeatability of the XSENS-Awinda system compared to the reference measurement system have been demonstrated. The XSENS-Awinda device offers new real-time evaluation possibilities for quantitative gait analysis. This opens the way to new diagnostic tools, prognostics and therapeutic perspectives for the clinician.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 40
- Age 18-65
- BMI between 18.5 and 30
- Written informed consent
- Same gender and age within +/- 3 years compared to an unmatched AS patient
Inclusion criteria specific to the AS group:
-
Age 18-65
-
BMI between 18.5 and 30
-
Written informed consent
-
AS meeting the ASAS (Assessment of Spondylo Arthritis International Society) criteria, i.e. with spinal pain ≥ 3 months old, with an age of diagnosis < 45 years, with:
- Sacroiliitis on imaging AND ≥ 1 sign of spondylarthritis. OR
- HLA-B27 (human leukocyte antigen-B27) positive AND ≥ 2 other signs of spondylarthritis
- Traumatic, tumoral or infectious low back pain
- History of spinal fracture
- History of lumbar, pelvis, hips, ankles, and/or knees surgery
- Severe scoliosis defined by a Cobb angle > 50°
- Severe impairment of uncorrected visual acuity
- Concomitant pathology responsible for ataxia
- Lumbar arthrodesis of two or more stages
- Pregnant or breastfeeding women
- Patient unable to give consent: patient under guardianship or curators, mentally retarded, dementia, language barrier
- Patient not affiliated to a social security plan
- Patient under legal protection
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description healthy volunteers XSENS-Awinda Evaluation of kinematic parameters by wearing X-Sens sensors in different movements (flexion and extension of the spine, tying shoelaces, picking up an object on the ground, walking, etc.) AS patients XSENS-Awinda Evaluation of kinematic parameters by wearing X-Sens sensors in different movements (flexion and extension of the spine, tying shoelaces, picking up an object on the ground, walking, etc.)
- Primary Outcome Measures
Name Time Method Variation in spinal angle measurement between APS patients and healthy volunteers 1 day Assess the diagnostic performance of angular measurement in the sagittal plane during flexion and extension of the spine in the diagnosis of AS. spinal angle measurement (in degrees) for both APS patients and healthy volunteers will be compared using a Student's test or Wilcoxon Mann Whitney test depending on the distribution. The diagnostic performances of the different kinematic parameters will be estimated in percentage (%) with their 95% confidence interval.
- Secondary Outcome Measures
Name Time Method Percentage of functional impact of the AS by BASMI score 1 day The BASMI (Bath Ankylosing Spondylitis Metrology Index) was established to assess the mobility of the spine and hips.
It measures :
* the ear/wall distance
* head rotation
* flexion of the trunk
* trunk flexion to the side
* the distance between the internal malleolus (at the ankles) during the maximum spread of the legs
A conversion table allows investigators to give a rating from 0 to 10 for each measurement. The average of the 5 ratings gives the BASMI. It varies from 0 to 10 and the higher the rating, the more limited the movements.percentage of diagnosis concordant between the kinematic parameters of the lower limb joints and the diagnosis of AS 1 day Evaluate the diagnostic performance of other kinematic parameters of lower limb joints in the diagnosis of AS.
Percentage of functional impact of the AS by BASFI score 1 day The BASFI (Bath ankylosing spondylitis functional index) reflects functional impact, that is to say the inability to perform actions of daily living. It contains 10 questions on activities of daily living, which are scored with a rating scale from 0 (no functional impairments) to 10 (maximal impairment) \[38\] (Box 5.2). The sum score ranges from 0 to 10, with higher values indicating worse functioning.
percentage of correlation between clinical and kinematic parameters 1 day establishing the correlation between clinical parameters and kinematic parameters
Percentage of AS activity by BASDAI score 1 day The BASDAI (Bath Ankylosing Spondylitis Disease Activity Index) is a questionnaire to calculate the activity index of ankylosing spondylitis.
Rate the intensity of 5 symptoms during the past week, giving a score from 0 to 10, knowing that 0 means the absence of the symptom and 10 its presence at the highest degree.
This score is an aid in monitoring ankylosing spondylitis.Variation of kinematic parameters of movement between BASFI and sensors 1 day Describe the kinematic parameters of the movements evaluated in the BASFI score through the X Sens sensors.
Clinical parameters are :
10 questions on activities of daily living, which are scored with a rating scale from 0 (no functional impairments) to 10 (maximal impairment)
Kinematic parameters measured with the X sens sensors are :
* Maximum bending, flexion and rotation angle (degrees)
* Time up and Go (TUG) ( seconds)
To establish the correlation between the clinical parameters and the kinematic parameters the investigators will use Spearman or Pearson correlation tests.percentage of diagnosis concordant between the kinematic parameters of the spine and the diagnosis of AS 1 day Evaluate the diagnostic performance of other kinematic parameters of the spine in the diagnosis of AS.
Trial Locations
- Locations (1)
Centre Hospitalier Universitaire de Montpellier
🇫🇷Montpellier, France