The objective of this study is to investigate if MRI can be used to evaluated effect of knee artery embolization for knee osteoarthritis. Participants be evaluated in clinic, obtain a knee MRI, undergo embolization of the symptomatic knee, and follow up in clinic at 1, 6, and 12 months after embolization. A second MRI is obtained 6 months after embolization. Participants will keep a record of their pain level and treatment and answer questionnaires at each visit. In addition, this study aims to determine the effects of knee artery embolization on the amount of opioid (pain reliever drugs) needed to manage osteoarthritis-associated pain and change in quality of life.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
12
An MRI study of the knee will be done to check the degree of osteoarthritis and blood flow to the affected knee. This scan will take about 1-2 hour(s).
The physician will perform a diagnostic angiography, where they will take pictures of vessels near the knee that will be treated. Once the artery to be treated is identified, the doctor will guide a thin wire called a microwire, and a plastic tube called a microcatheter to the targeted artery, and more pictures of vessels at the knee will be taken. This picture will be used to see if there are any abnormal vessels at the knee, such as abnormal blood flow, abnormal vessel connections (between the veins and arteries), or new blood vessel growth. Once the targeted artery at the knee is confirmed, the doctor will inject enough particle embolic (Embozene) to slow or stop the blood flow in the geniculate artery. Once all vessels are treated, a final angiogram (pictures of blood vessels) will be performed to ensure that the blood flow has slowed.
Medical University of South Carolina
Charleston, South Carolina, United States
Change in enhancement time intensity curves obtained from CE-MRI
To evaluate the effects of particle embolization on knee osteoarthritis progression using enhancement time intensity curves obtained from CE-MRI (Contrast Enhanced Magnetic Resonance Imaging)
Time frame: change from baseline at 6 month post procedure
Change in Whole-Organ Magnetic Resonance Scoring (WORMS)
To evaluate the effects of particle embolization on knee osteoarthritis progression using the WORMS scoring system. The higher the score, the worse the OA is. The scoring ranges from 0-332.
Time frame: change from baseline at 6 month post procedure
Change in Multicenter Osteoarthritis Study (MOST) grading system for synovitis
To evaluate the effects of particle embolization on knee osteoarthritis progression using the MOST grading system for synovitis. The higher the score, the worse the synovial inflammation is. The scoring ranges from 0-13. 0-4 normal or equivocal synovitis, 5-8 mild synovitis, 9-12 moderate synovitis, and 13 or greater is severe synovitis.
Time frame: change from baseline at 6 month post procedure
Number of participants with 50% reduction in pain scores
To determine the effects of geniculate artery embolization (GAE) on opioid requirements for managing OA associated pain. Assess pain using Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) and Knee Injury and Osteoarthritis Outcome Score (KOOS). WOMAC is scored from 0-20 for pain, 0-8 for stiffness, and 0-68 for physical function. Higher scores indicate worse pain, stiffness, and function limitation. KOOS score is from 0-100, 0 being extreme problems and 100 being no problems.
Time frame: change from baseline at 1 month post procedure
Number of participants with 50% reduction in pain scores
To determine the effects of geniculate artery embolization (GAE) on opioid requirements for managing OA associated pain. Assess pain using Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) and Knee Injury and Osteoarthritis Outcome Score (KOOS). WOMAC is scored from 0-20 for pain, 0-8 for stiffness, and 0-68 for physical function. Higher scores indicate worse pain, stiffness, and function limitation. KOOS score is from 0-100, 0 being extreme problems and 100 being no problems.
Time frame: change from baseline at 6 month post procedure
Number of participants with 50% reduction in pain scores
To determine the effects of geniculate artery embolization (GAE) on opioid requirements for managing OA associated pain. Assess pain using Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) and Knee Injury and Osteoarthritis Outcome Score (KOOS). WOMAC is scored from 0-20 for pain, 0-8 for stiffness, and 0-68 for physical function. Higher scores indicate worse pain, stiffness, and function limitation. KOOS score is from 0-100, 0 being extreme problems and 100 being no problems.
Time frame: change from baseline at 12 month post procedure
Incidence of adverse events associated with GAE
The number of adverse events per participant
Time frame: 1 month post procedure
Incidence of adverse events associated with GAE
The number of adverse events per participant
Time frame: 6 month post procedure
Incidence of adverse events associated with GAE
The number of adverse events per participant
Time frame: 12 month post procedure
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