Erosive arthritis (EA) is an unusual pathology. There is no definitive treatment and the conventional one has little efficacy. Despite using magnetotherapy (MGT) as a treatment, there is no evidence supporting its use.
The aim of the study is to evaluate the efficacy of MGT in patients suffering from hand EA, compared to placebo, in terms of pain (assessed by Visual Analog Scale (VAS)) and functionality (assessed by The Disabilities of the Arm, Shoulder and Hand (DASH) score) during the treatment and after a 3-months period. Secondarily, rigidity (Modified Kapandji Index), grip strength (JAMAR dynamometry) and quality of life (SF-36 questionnaire) were assessed. Treatment safety will also be evaluated.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
19
Use of magnetotherapy device 15 consecutive working days in elegible patients with erosive hand osteoarthritis.
Use of unplugged magnetotherapy device 15 consecutive working days in elegible patients with erosive hand osteoarthritis.
Visual Analogue Scale (VAS)
The visual analogue scale or visual analog scale (VAS) is a psychometric response scale which measures subjective characteristics or attitudes that cannot be directly measured, like pain. When responding to a VAS item, respondents specify their level of agreement to a statement by indicating a position along a continuous line between two end-points: one meaning no pain and the opposite one meaning the worst pain.
Time frame: Change from baseline pain at the end of the intervention and 3 months after the end of intervention.
The Disabilities of the Arm, Shoulder and Hand (DASH) questionnaire
The Disabilities of the Arm, Shoulder and Hand (DASH) questionnaire is a self-administered region-specific outcome instrument developed as a measure of self-rated upper-extremity disability and symptoms. The DASH consists mainly of a 30-item disability/symptom scale, scored 0 (no disability) to 100.
Time frame: Before starting the intervention, at the end of the intervention and 3 months after the end of intervention.
Modified Kapandji Index
Modified Kapandji Index is a rate of hand mobility assessment. The final result is obtained by adding the results of the 3 tests: test opposition of the thumb (It consists of touching the 4 fingers with the thumb pulp. It scores from 0 to 10); fingers flexion test (It consists of following the thumb with each of the fingers, scoring from 0 (impossible to achieve) to 20 (completely achieved)); fingers extension test (It consists of stretching the hand on a table and get the maximum contact with the surface of the table, scoring from 0 (impossible to achieve) to 20 (completely achieved)).
Time frame: Before starting the intervention, at the end of the intervention and 3 months after the end of intervention.
JAMAR dynamometry
JAMAR dynamometry is a valid and reliable instrument to measure the muscular strength of the hands. It is needed to be well performed. The patient is placed in a sitting position with the elbows flexed to 90 degrees without supporting them and the JAMAR is approached to him to be able to make 3 strength determinations with each hand. The final value is extracted from the average of the 3 values of each hand.
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Time frame: Before starting the intervention, at the end of the intervention and 3 months after the end of intervention.
SF-36 questionnaire
SF-36 is a self-administered questionnaire that can be answered in approximately 10 minute. It quantifies thepatients health status using 8 scales that measure three aspects: functional status, well-being and overall health assessment. 8 numbers between 0 and 100 are obtained. The higher score, the better health status is.
Time frame: Before starting the intervention, at the end of the intervention and 3 months after the end of intervention.