Treatment of Knee Osteoarthrosis Using the Electromagnetic Fields

Study Overview
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Brief Summary
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This study is a randomized controlled clinical trial using a blind evaluator. Fifty-one volunteers were selected from 50 years to 70 years, obeying the following criteria: diagnosis of knee OA grade II and III through the radiographic classification of Kellgreen and Lawrence 1955, Body mass index (BMI) less than 40 kg / m², volunteers should have had knee pain for at least six months. All are from the Rehabilitation Sector of Santa Casa de Misericórdia de São Paulo (ISCMSP). The subjects were evaluated through a questionnaire developed by the authors of the study (Annex I), the Visual Analogue Scale (EVA) (Annex II), then applied to the Lower Extremity Functional Scale LEFS (Appendix III) and the Activities of daily living scale ADLs (Annex IV). In addition, the evaluation of muscular strength was through dynamometry using the Lafayete dynamometer model 01163, which was performed by a blind evaluator regarding the group that will belong to each candidate. The muscles tested were: quadriceps, ischiostibial and gluteus maximus. The randomization was through 60 brown envelopes divided into A, B, C and D, designating the randomness of the sample. In addition to the initial evaluation, an evaluation was performed at the end of the tenth session and after 3 months of treatment. The volunteers underwent a five-week treatment program, totaling 10 sessions, divided into four groups, group A - Intervention (INT) underwent knee and hip muscle strengthening exercises and electromagnetic field therapy with (Meditea - ARG) using the coplanar technique, group B - Exercises (EXE) carried out exercises to strengthen the hip and knee muscles in the C - Placebo group (PLA). hip and knee and electromagnetic field therapy with the Magnetron® coplanar technique, but with the device switched off and group D - Apparatus (APA) only use electromagnetic field therapy with the magnetron® coplanar technique. In the present study, there were no significant differences between groups regarding pain, function and muscle strength. However, group A obtained better results in the evaluated criteria, tending that the combination PEMF and exercises, is an indicated treatment for OA knee.

Official Title
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Treatment of Knee Osteoarthrosis Using the Electromagnetic Fields: Blinded and Controlled Study

Conditions
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Knee Osteoarthritis, Knee Arthritis

Intervention / Treatment
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* Other: Exercises
* Other: Electromagnetic field therapy


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: diagnosis of knee OA grade II and III Body mass index (BMI) of less than 40 kg / m² knee pain for at least six months Exclusion Criteria: Severe OA above grade 3 previous physical therapy for at least 6 months, any other affection of the lower limbs (LLL) and lumbar spine, obesity (BMI> 40), patients with cardiovascular, metabolic, neurological, oncological or history of knee surgery.

Ages Eligible for Study
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Minimum Age: 50 Years
Maximum Age: 70 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Group A - Intervention<br>Submitted to knee and hip muscle strengthening exercises and electromagnetic field therapy with Magnetron ® (Meditea - ARG) using the coplanar technique | Other: Exercises<br>* Muscle strengthening exercises of the hip and knee muscles<br>Other: Electromagnetic field therapy<br>* Electromagnetic field therapy with Magnetron®<br>|
| Active Comparator: Group B - exercises<br>Performed exercises to strengthen the hip and knee muscles | Other: Exercises<br>* Muscle strengthening exercises of the hip and knee muscles<br>|
| Placebo Comparator: Group C - Placebo<br>Performed hip and knee strengthening exercises and electromagnetic field therapy with the coplanar Magnetron® technique, but with the device switched off | Other: Electromagnetic field therapy<br>* Electromagnetic field therapy with Magnetron®<br>|
| Active Comparator: Group D - Apparatus<br>Only use electromagnetic field therapy with the coplanar Magnetron® technique | Other: Electromagnetic field therapy<br>* Electromagnetic field therapy with Magnetron®<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Pain | Visual Analog Pain Scale | The visual analog pain scale was performed without onset and after 3 months after treatment |