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Effects of Reparel™ Knee Sleeve on Knee Osteoarthritis

Effects of Reparel™ Knee Sleeve on Knee Osteoarthritis

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04743921
Enrollment
14
Registered
2021-02-08
Start date
2021-02-01
Completion date
2021-11-06
Last updated
2024-05-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Knee Osteoarthritis

Brief summary

The goals of treating knee osteoarthritis (OA) is to improve or maintain quality of life, mobility and function, pain relief, and improve inflammation. The different treatment options for knee OA have been extensively studied and implemented, but the optimum treatment is still undecided. There is a belief that anti-inflammatory sleeve technology may be beneficial in treating knee OA. The purpose of this study is to determine the clinical effects of Reparel™ knee sleeve regarding mobility, functionality, and pain outcomes in managing knee OA.

Detailed description

Standard knee compression sleeves have been described throughout literature to provide benefits in pain and functional outcomes through support of the ligamentous structures. Bracing is both an effective and economical treatment for osteoarthritis and serves as a crucial option in the treatment of knee OA to aid in both delaying surgery and as options for young patients, or patients that are not ideal surgical candidates. Although knee sleeves are commonly utilized treatment modalities, there is a significant paucity of literature on the effects of thermo-active braces in the treatment of knee OA. This investigation will examine this non-operative treatment modality and study it effect for the treatment of knee OA specifically by investigating the Reparel Knee Sleeve. The Reparel Knee Sleeve is a Class I Medical Device (510(k) exempt) and used in general sports medicine practice for the alleviation of knee pain. The authors expect that the Reparel thermos-active knee sleeve will have a significant effect on pain relief from knee OA.

Interventions

Patients who are recommended for non-operative management of knee osteoarthritis and have been consented in clinic to participate in the study will be given a Reparel™ knee sleeve to wear for knee osteoarthritis management. Each device will be numbered and recorded in the patient's REDCap entry for future reference if needed. Following administration of the Reparel™ knee sleeve, patients will be given instructions on how to use/wear the sleeve while performing activities of daily living or sports that had previously resulted in knee pain and also be asked to do the follows: wear the sleeve as much as they possibly can; not change their usual activities and diet during the time they are on this study; record in a diary the number of hours sleeve was worn per day; record any adverse effects or discomfort due to sleeve use; refrain from altering treatment for knee osteoarthritis.

Sponsors

University of Alabama at Birmingham
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 99 Years
Healthy volunteers
No

Inclusion criteria

* osteoarthritis visible on knee radiograph * patient opting for non-surgical treatment * no corticosteroid knee injection for 90 days prior to consent * no corticosteroid knee injection for 90 days following consent

Exclusion criteria

* bilateral symptomatic knee osteoarthritis * prior surgery on the knee of interest * hardware present on the knee of interest * gross instability detected on physical exam * malignancy in the knee of question

Design outcomes

Primary

MeasureTime frameDescription
Oxford Knee Score (OKS)3 monthsThis is a questionnaire that is self-reported by the patient. It measures knee pain and function. It is scored from 0 to 48. A score of 0 represents the lowest score and is associated with higher knee pain and lower function. A score of 48 represents lower knee pain and higher function.
University of California, Los Angeles (UCLA) Activity Score3 monthsThis is a questionnaire that measures current activity level. Patients self report their current activity level. It ranges from 1-10. A patient scoring themselves as a 1 is the lowest current activity level and represents someone who is wholly inactive. A patient scoring themselves as a 10 is the highest current activity level and represents someone able to regularly participate in impact sports.
Lysholm Score3 monthsThis is a questionnaire that is self-reported by the patient. It is meant to measure a patient's ability to manage activities of daily living as it relates to their knee. The score range is from 0 to 100. A score of 0 is the lowest score associated with lower ability to manage activities of daily living, and a score of 100 is the highest score associated with a higher ability to manage activities of daily living.
Knee Injury and Osteoarthritis Outcome Score Pain (KOOS-P)3 monthsThis is a patient questionnaire that is self-reported. It is a measure of how much pain a patient has during different activities. A score of 100 represents the lowest level of pain with different activities. A score of 0 represents the highest amount of pain with different activities.
Single Assessment Numeric Evaluation (SANE)3 monthsThis is a patient questionnaire that is self-reported by the patient. It represents a patient's perceived functional level of their affected joint as a percentage of normal. The score is ranged from 0% to 100%. A score of 100% is the best outcome with the patient perceiving their functional level as 100% of normal.
Visual Analog Scale (VAS)3 monthsThis is a patient questionnaire that is self-reported by the patient. It measures how much knee pain the patient is having. The score ranges from 0 to 10. A score of 0 represents the best outcome with the least amount of pain. A score of 10 is the worst outcome with the most amount of pain.
Knee Injury and Osteoarthritis Outcome Score Symptoms (KOOS-Sy)3 monthsThis is a patient questionnaire that is self-reported. It represents the amount of knee symptoms a patient has. A score of 0 represents the worst outcome with a patient reporting the most symptoms. A score of 100 represents the best outcome with patients reporting the least symptoms.
Knee Injury and Osteoarthritis Outcome Score Activities of Daily Living (KOOS-ADL)3 monthsThis is a patient questionnaire that is self-reported by the patient. It measures the ability of a patient to perform activities of daily living as it relates to a patient's knee. A score of 0 represents the worst outcome with patients reporting the most difficulty performing activities of daily living. A score of 100 represents the best outcome with patients reporting the least difficulty with performing activities of daily living.
Knee Injury and Osteoarthritis Outcome Score Quality of Life (KOOS-QOL)3 monthsThis is a patient questionnaire that is self-reported by the patient. It measures a patient's quality of life as it relates to their knee. A score of 0 represents the lowest quality of life as it relates to a patient's knee. A score of 100 represents the highest quality of life as it relates to a patient's knee.
Knee Injury and Osteoarthritis Outcome Score Sports and Recreation (KOOS-Sp)3 monthsThis is a patient questionnaire that is self-reported by the patient. It measures a patient's ability to perform sports and recreation as it relates to their knee. A score of 0 represents the lowest ability to perform sports and recreation as it relates to their knee. A score of 100 represents the highest ability to perform sports and recreation as it relates to their knee.

Countries

United States

Participant flow

Participants by arm

ArmCount
Reparel Sleeve Group
Patients receiving reparel knee sleeve for treatment of knee osteoarthritis. Reparel Knee Sleeve: Patients who are recommended for non-operative management of knee osteoarthritis and have been consented in clinic to participate in the study will be given a Reparel™ knee sleeve to wear for knee osteoarthritis management. Each device will be numbered and recorded in the patient's REDCap entry for future reference if needed. Following administration of the Reparel™ knee sleeve, patients will be given instructions on how to use/wear the sleeve while performing activities of daily living or sports that had previously resulted in knee pain and also be asked to do the follows: wear the sleeve as much as they possibly can; not change their usual activities and diet during the time they are on this study; record in a diary the number of hours sleeve was worn per day; record any adverse effects or discomfort due to sleeve use; refrain from altering treatment for knee osteoarthritis.
14
Total14

Baseline characteristics

CharacteristicReparel Sleeve Group
Age, Continuous
Female
60.5 years
STANDARD_DEVIATION 12.8
Age, Continuous
Male
66.0 years
STANDARD_DEVIATION 11.9
Body Mass Index
Female
34.3 kilograms per meter squared
STANDARD_DEVIATION 6.6
Body Mass Index
Male
33.7 kilograms per meter squared
STANDARD_DEVIATION 2.6
Race and Ethnicity Not Collected— Participants
Sex: Female, Male
Female
10 Participants
Sex: Female, Male
Male
4 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 14
other
Total, other adverse events
6 / 14
serious
Total, serious adverse events
0 / 14

Outcome results

Primary

Knee Injury and Osteoarthritis Outcome Score Activities of Daily Living (KOOS-ADL)

This is a patient questionnaire that is self-reported by the patient. It measures the ability of a patient to perform activities of daily living as it relates to a patient's knee. A score of 0 represents the worst outcome with patients reporting the most difficulty performing activities of daily living. A score of 100 represents the best outcome with patients reporting the least difficulty with performing activities of daily living.

Time frame: 3 months

Population: Although 14 patients were enrolled, only 12 patients filled out their questionnaires at 3 months

ArmMeasureValue (MEAN)Dispersion
Reparel Sleeve GroupKnee Injury and Osteoarthritis Outcome Score Activities of Daily Living (KOOS-ADL)81.37 score on a scaleStandard Deviation 16
Primary

Knee Injury and Osteoarthritis Outcome Score Pain (KOOS-P)

This is a patient questionnaire that is self-reported. It is a measure of how much pain a patient has during different activities. A score of 100 represents the lowest level of pain with different activities. A score of 0 represents the highest amount of pain with different activities.

Time frame: 3 months

Population: Although 14 patients were enrolled, only 12 filled out their questionnaires at 3 months

ArmMeasureValue (MEAN)Dispersion
Reparel Sleeve GroupKnee Injury and Osteoarthritis Outcome Score Pain (KOOS-P)72.9 score on a scaleStandard Deviation 15.2
Primary

Knee Injury and Osteoarthritis Outcome Score Quality of Life (KOOS-QOL)

This is a patient questionnaire that is self-reported by the patient. It measures a patient's quality of life as it relates to their knee. A score of 0 represents the lowest quality of life as it relates to a patient's knee. A score of 100 represents the highest quality of life as it relates to a patient's knee.

Time frame: 3 months

Population: Although 14 patients were enrolled, only 12 filled out their questionnaires at 3 months

ArmMeasureValue (MEAN)Dispersion
Reparel Sleeve GroupKnee Injury and Osteoarthritis Outcome Score Quality of Life (KOOS-QOL)59.9 score on a scaleStandard Deviation 21.6
Primary

Knee Injury and Osteoarthritis Outcome Score Sports and Recreation (KOOS-Sp)

This is a patient questionnaire that is self-reported by the patient. It measures a patient's ability to perform sports and recreation as it relates to their knee. A score of 0 represents the lowest ability to perform sports and recreation as it relates to their knee. A score of 100 represents the highest ability to perform sports and recreation as it relates to their knee.

Time frame: 3 months

Population: Although 14 patients were enrolled, only 12 filled out their questionnaires at 3 months

ArmMeasureValue (MEAN)Dispersion
Reparel Sleeve GroupKnee Injury and Osteoarthritis Outcome Score Sports and Recreation (KOOS-Sp)47.5 score on a scaleStandard Deviation 21.3
Primary

Knee Injury and Osteoarthritis Outcome Score Symptoms (KOOS-Sy)

This is a patient questionnaire that is self-reported. It represents the amount of knee symptoms a patient has. A score of 0 represents the worst outcome with a patient reporting the most symptoms. A score of 100 represents the best outcome with patients reporting the least symptoms.

Time frame: 3 months

Population: Although 14 patients were enrolled, only 12 filled out their questionnaires at 3 months

ArmMeasureValue (MEAN)Dispersion
Reparel Sleeve GroupKnee Injury and Osteoarthritis Outcome Score Symptoms (KOOS-Sy)75.6 score on a scaleStandard Deviation 16.1
Primary

Lysholm Score

This is a questionnaire that is self-reported by the patient. It is meant to measure a patient's ability to manage activities of daily living as it relates to their knee. The score range is from 0 to 100. A score of 0 is the lowest score associated with lower ability to manage activities of daily living, and a score of 100 is the highest score associated with a higher ability to manage activities of daily living.

Time frame: 3 months

Population: Although 14 patients were enrolled at baseline, only 12 filled out their questionnaires at 3 months

ArmMeasureValue (MEAN)Dispersion
Reparel Sleeve GroupLysholm Score75.0 score on a scaleStandard Deviation 15.3
Primary

Oxford Knee Score (OKS)

This is a questionnaire that is self-reported by the patient. It measures knee pain and function. It is scored from 0 to 48. A score of 0 represents the lowest score and is associated with higher knee pain and lower function. A score of 48 represents lower knee pain and higher function.

Time frame: 3 months

Population: Although 14 patients were enrolled, only 12 filled out their questionnaires at 3 months

ArmMeasureValue (MEAN)Dispersion
Reparel Sleeve GroupOxford Knee Score (OKS)38.2 score on a scaleStandard Deviation 7
Primary

Single Assessment Numeric Evaluation (SANE)

This is a patient questionnaire that is self-reported by the patient. It represents a patient's perceived functional level of their affected joint as a percentage of normal. The score is ranged from 0% to 100%. A score of 100% is the best outcome with the patient perceiving their functional level as 100% of normal.

Time frame: 3 months

Population: Although 14 patients were enrolled, only 12 filled out their questionnaires at 3 months

ArmMeasureValue (MEAN)Dispersion
Reparel Sleeve GroupSingle Assessment Numeric Evaluation (SANE)72.0 percentage scoreStandard Deviation 31
Primary

University of California, Los Angeles (UCLA) Activity Score

This is a questionnaire that measures current activity level. Patients self report their current activity level. It ranges from 1-10. A patient scoring themselves as a 1 is the lowest current activity level and represents someone who is wholly inactive. A patient scoring themselves as a 10 is the highest current activity level and represents someone able to regularly participate in impact sports.

Time frame: 3 months

Population: Although 14 patients were enrolled at baseline, only 12 patients filled out their surveys at 3 months.

ArmMeasureValue (MEAN)Dispersion
Reparel Sleeve GroupUniversity of California, Los Angeles (UCLA) Activity Score5.4 score on a scaleStandard Deviation 1.4
Primary

Visual Analog Scale (VAS)

This is a patient questionnaire that is self-reported by the patient. It measures how much knee pain the patient is having. The score ranges from 0 to 10. A score of 0 represents the best outcome with the least amount of pain. A score of 10 is the worst outcome with the most amount of pain.

Time frame: 3 months

Population: Although 14 patients were enrolled, only 12 filled out their questionnaires at 3 months

ArmMeasureValue (MEAN)Dispersion
Reparel Sleeve GroupVisual Analog Scale (VAS)3.0 score on a scaleStandard Deviation 2.9

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026