Knee Osteoarthritis
Conditions
Brief summary
Background: Osteoarthritis (OA) is highly prevalent in the elderly, with the knee being the most commonly affected joint in this population. Knee braces are often used to prevent common problems in knees during daily activities. The purpose of these devices is to decrease pain and improve functionality. In the literature some studies have tested the effectiveness of unloader brace for valgus or varus. However, the braces most used in the investigators' clinical setting and the less costly ones have not been described in quality studies in the literature. There are only few studies on this subject and they are methodologically inadequate. There are no studies that compared the effectiveness between the knee brace with metal hinges (no alignment) and knee brace without metal hinges. Objective: To evaluate the effectiveness of knee braces on pain, function and quality of life in the elderly with knee OA. Methods: Elderly with knee OA, both genders, with pain scale 3-7cm on a 10cm pain numeric scale were included. Of the 222 patients screened, 120 met the eligibility criteria and were randomized to the groups: without metal hinges, with metal hinges or control group. The groups without and with metal hinges received knee brace and were instructed to use it in daily activities, every day, during three months. Assessment for pain (NPS), function (WOMAC and Knee Lequesne) and quality of life (SF-36) were done at baseline and after 45, 90 and 180 days by a blinded assessor.
Interventions
DEVICEBrace (Fisiotensor®)
DEVICESleeve (Fisiotensor®)
Sponsors
Federal University of São Paulo
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
60 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* pain in numerical pain scale between 3 and 7cm; * Knee ligamentous instability
Exclusion criteria
* fibromyalgia and neurologic disease; * knee or hip replacement * surgery scheduled in the following 6 months * start physical activity or received joint injection in the past three months * need to use walking aids or brace in knee
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Change in pain measured by a numeric pain scale | Baseline, after 45, 90 and 180 days |
Secondary
| Measure | Time frame |
|---|---|
| Change in function measured by Lequesne and WOMAC questionnaires | Baseline, after 45, 90 and 180 days |
| Change in quality of life measured by SF-36 questionnaire | Baseline, after 45, 90 and 180 days |
Countries
Brazil
Outcome results
None listed