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Completed

NCT Number: NCT04015323

The Efficacy of Interferential Current Treatment on Knee Osteoarthritis

The effects of different carrier frequencies of interferential current on pain and function in patients with knee arthrosis will be compared

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Key information

Conditions

Knee Osteoarthritis Arthritis Joint Diseases Musculoskeletal Diseases Neurologic Manifestations Osteoarthritis Osteoarthritis, Knee Pain Pathological Conditions, Signs and Symptoms Rheumatic Diseases Signs and Symptoms

Age range

50 year–80 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Ege University School of Medicine

Izmir, 35100, Turkey (Türkiye)

About this study

60 patients with knee osteoarhthritis will be enrolled in the study. Subjects will be randomized to 3 groups. All patients will receive interferential currents to both their knees, with different carrier frequencies (2, 4 and 8 kilohertz (kHz) respectively). The effect of different types of carrier frequencies on pain, 10 meter walk test will be analysed.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Age between 50-80 years
  • Knee VAS pain scores ≥ 4
  • Kellgren-Lawrence radiologic scores 2 and 3

Exclusion criteria

  • History of knee surgery
  • Inflammatory arthritis
  • Paralysis of lower extremities
  • Serious cardiovascular disease /presence of cardiac pacemaker
  • Severe osteoarhthritis of lower extremity joints other than the knees
  • History of newly diagnosed cancer (ın the last 6 months)
  • Cognitive impairment

Treatment and study plan

Interferential Current

Device

An electrotherapy current with different carrier frequencies

Primary outcomes

  1. Change in pain scores according to visual analog scale (VAS)

    Time frame: At baseline, on the 3rd week visit (last day of interference therapy) and on the 7th week visit

    A visual analog scale value between 0-10. 0 meaning lack of pain and 10 meaning the worst pain the patient has experienced.

Secondary outcomes

  1. Change in functional status levels according to Western Ontario and McMaster Universities Arhtiritis Incex (WOMAC) scale

    Time frame: At baseline, on the 3rd week visit (last day of interference therapy) and on the 7th week visit

    Womac scale is a questionnaire assessing patients' level of pain and functional status. Scores. Scores range from 0 to 96, 0 representing best and 96 representing worst scores. Pain, stiffness and functional limitation subscores are added up to obtain a total WOMAC score.

  2. Change in pain status levels according to Western Ontario and McMaster Universities Arhtiritis Incex (WOMAC) scale

    Time frame: At baseline, on the 3rd week visit (last day of interference therapy) and on the 7th week visit

    Womac scale is a questionnaire assessing patients' level of pain and functional status. Scores. Scores range from 0 to 96, 0 representing best and 96 representing worst scores. Pain, stiffness and functional limitation subscores are added up to obtain a total WOMAC score.

  3. Change in 10 meter walking test score

    Time frame: At baseline, on the 3rd week visit (last day of interference therapy) and on the 7th week visit

    This test is a measure that is used to assess walking speed in meters per second over 10 meters. It is used to determine functional mobility.

  4. Change in the number of paracetamol tablets taken in a week

    Time frame: At baseline, on the 3rd week visit (last day of interference therapy) and on the 7th week visit

    Number of 500 mg tablets taken over one week will be written by subjects.

Sponsors and collaborators

Lead sponsor

Ege University

Other

Registry information

Official study title

The Efficacy of Interferential Current Treatment on Knee Osteoarthritis: A Randomized Double Blind Study That Compares the Effects of Different Carrier Frequencies

Important dates

Study start
2019
Primary completion
2019
Study completion
2019
First posted
Jul 10, 2019
Registry last updated
Jul 22, 2020

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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