- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02996643
Ultrasound-Assisted Brace Casting for AIS
Determine the Optimum Applied Pressure for the Brace Treatment of Scoliosis
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Background: Adolescent Idiopathic Scoliosis (AIS) is a three-dimensional deformity of the spine associated with vertebral rotation. Brace treatment is the most commonly used non-surgical treatment. To obtain the best possible outcome, the best in-brace correction within the patient's accepted tolerance must be provided. However, in the existing clinical practice, the immediate in-brace correction cannot be measured during the design and fitting of the brace because the correction is determined using a radiograph.
Objectives: The objective of this study is to use ultrasound method to determine the optimum tolerable applied pressure level that can provide maximum in-brace correction.
Procedure:
Control Group: In the traditional method, each brace will be constructed using a plaster cast of the patient's trunk. Before the plaster cast hardens, the subject will lie on a casting board with multiple brace pads applied to correct the curve(s). The trim lines, pad placement, and areas of relief are then determined by the orthotist and guided by the curvature seen on the pre-brace PA spine radiograph.
Intervention Group: Before applying the plaster, subjects will lie on the custom designed frame. Two ultrasound scans will be performed and the average Cobb value will be used as the baseline. Multiple adjustable brace pads, each allowing for 6° of freedom and variable forces, will be applied to the patients' body according to orthotist suggestion. The apical brace pad that is used to control the major curve will be marked relative to the casting board as the reference location. The major pressure pad will be moved up 1 inch, then down 1 inch relative to the reference location. The 1 inch increment corresponds to the casting board, but finer adjustment is available. Two repeated ultrasound scans will be performed at each pad location (total 3 locations), and the average in-brace Cobb values will be estimated to determine optimum apical brace pad location. Next, pressure will be increased incrementally up to the tolerance level of the subject; this will be done by inflating the bladder at the apical brace pad. Another two ultrasound scans will then be performed to confirm that the maximum in-brace Cobb value is obtained. The orthotist will use this configuration to set the pad size and location once the plaster cast has been applied.
Study Type
Enrollment (Actual)
Phase
- Early Phase 1
Contacts and Locations
Study Locations
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Alberta
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Edmonton, Alberta, Canada, T6G2R7
- Medicine and Dentistry
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- AIS patients who are prescribed braces to treat their spinal deformity.
Exclusion Criteria:
- Any one does not want to participate.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Health Services Research
- Allocation: Non-Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
No Intervention: Traditional method
The traditional brace design method will be used to design a spinal brace.
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Active Comparator: Intervention
A custom Providence brace standing frame, a medical ultrasound system, a custom pressure measurement system, and in-house Ultrasound measurement software were used to assist brace casting for the intervention group.
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A custom brace standing frame, a medical ultrasound system, a custom pressure measurement system, and in-house Ultrasound measurement software were used to assist brace casting for the intervention group.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
In-brace Cobb angle
Time Frame: 6 weeks
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In-brace radiographs will be obtained after patients use their braces for 6 weeks
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6 weeks
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Number of adjustments
Time Frame: 6 weeks
|
Check if brace adjustment is required
|
6 weeks
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Edmond Lou, PhD, University of Alberta
Publications and helpful links
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
Additional Relevant MeSH Terms
Other Study ID Numbers
- Pro000028133
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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