- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03575975
3D X-ray Motion Analysis of Ankle-foot Motion After Total Ankle Arthroplasty
3D X-ray Motion Analysis of Ankle-foot Motion After Total Ankle Replacement With Stryker STAR Implant
Patients who have had a total ankle joint replacement surgery typically have limited movement in their ankles possibly due to the fact that commonly used ankle joint prosthetic devices only allow limited axes of motion.
This study will evaluate the ability of a Scandinavian Total Ankle Replacement (STAR) mobile-bearing prosthesis and INBONE 2 fixed-bearing prosthesis to restore triplanar motion in the tibiotalar (ankle) joint following a surgical arthroplasty (total joint replacement) procedure.
3D X-ray video motion analysis will be utilized to quantify range of motion measurements in two groups of ankle prosthesis users and a group of matched control participants.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
15 study participants will include those using a Stryker STAR prosthesis and a Wright Medical INBONE 2 prosthesis and a group of matched control subjects.
CT scans of lower limb anatomy (ankle-foot complex) will be obtained for all subjects to be converted into 3D bone surface models for use in the joint motion tracking software.
Each participant will participate in one day of data collection with an X-Ray Motion Analysis (XMA) system. High-speed biplanar XMA system will capture video images of the skeletal motions within the foot-ankle complex during normal movement. Subjects will walk and perform controlled movements in the capture volume within the XMA system.
Following data collection, the 3D bone surface models will be mapped to the sagittal (side view), coronal (front view), and axial (top view) plane skeletal motions demonstrated in the collected x-ray videos. Motion tracking data will then be used to accurately animate the 3D bone models to demonstrate the active range of ankle-foot joint motions during voluntary movement and gait.
Resulting range of motion measurements in dorsiflexion/plantarflexion, internal/external rotation, and inversion/eversion will be used to determine the extent to which normal motion in the ankle-foot complex has been restored in ankle prosthesis users.
Study Type
Enrollment (Actual)
Contacts and Locations
Study Locations
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Georgia
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Atlanta, Georgia, United States, 30332-0356
- Georgia Institute of Technology
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
INCLUSION CRITERIA:
- Between 18 to 79 years of age.
Additional Inclusion criteria for mobile-bearing ankle prosthesis user group:
- Able to walk independently with their prosthesis at different self-selected speeds
- Implanted with Stryker Scandinavian Total Ankle Replacement (STAR) prosthesis at least one year prior to enrollment
- Pain free and radiologically normal
- Able to walk at preferred walking speed without an assistive device (e.g., cane, crutches, etc.)
Additional Inclusion criteria for control group:
- Within 3 years of age of one of the mobile-bearing ankle prosthesis user participants
- Same gender as the matched mobile-bearing ankle prosthesis user participant
- Not have a history of major musculoskeletal injuries
- Not have a history of major neuromuscular injuries
Additional Inclusion criteria for fixed-bearing ankle prosthesis users:
- Able to walk independently with their prosthesis at different self-selected speeds
- Implanted with INBONE 2 prosthesis at least one year prior to enrollment
- Pain free and radiologically normal
- Able to walk at preferred walking speed without an assistive device (cane, crutches, etc.)
EXCLUSION CRITERIA:
- Have dementia or an inability to give informed consent
- Have significant or chronic loss of hip or knee joint motion
- Have any subtalar or hindfoot fusion
- Have a history of dizziness and/or balance problems
- Have had any additional x-ray exposures in the past year that would put beyond the recommended annual dose for the study
- Are pregnant
- Exhibit evidence of polysubsidence (implant loosening)
- Exhibit evidence of a broken implant
Study Plan
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
Mobile-bearing ankle prosthesis user
Users of the Stryker Scandinavian Total Ankle Replacement (STAR) mobile-bearing prosthesis.
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Comparison of functional range of motion in users of Stryker Scandinavian Total Ankle Replacement (STAR) prosthesis to users of INBONE 2 Total Ankle Replacement prosthesis and to matched controls with intact ankle joints.
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Control
Healthy individual age- and gender-matched to a participant in the mobile-bearing prosthesis user group.
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Fixed-bearing ankle prosthesis user
Users of the INBONE II Total Ankle Replacement fixed-bearing prosthesis.
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Comparison of functional range of motion in users of Stryker Scandinavian Total Ankle Replacement (STAR) prosthesis to users of INBONE 2 Total Ankle Replacement prosthesis and to matched controls with intact ankle joints.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Tibiotalar Joint Angle Kinematics
Time Frame: 1 year
|
3D range of motions of the tibiotalar (upper ankle) joint were recorded and analyzed using a biplanar x-ray motion analysis system.
In particular, joint ranges of motion were tested in terms of dorsiflexion-plantarflexion, internal-external rotation, and inversion-eversion angles.
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1 year
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Tibiotalar Joint Linear Translation Kinematics
Time Frame: 1 year
|
3D range of linear motions of the tibiotalar (upper ankle) joint were recorded and analyzed using a biplanar x-ray motion analysis system.
In particular, linear joint ranges of motion were tested in terms of the anteroposterior, mediolateral, and superior-inferior axes.
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1 year
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Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Young-Hui Chang, PhD, Georgia Institute of Technology
Study record dates
Study Major Dates
Study Start (ACTUAL)
Primary Completion (ACTUAL)
Study Completion (ACTUAL)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ACTUAL)
Study Record Updates
Last Update Posted (ACTUAL)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- Ankle XMA Project
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
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