Laser vs Lontophoresis in KOA

June 18, 2026 updated by: Abdulaziz Fahad Ahmed Alsulaimani, Kafrelsheikh University

Effectiveness of Laser Therapy Versus Lontophoresis in the Management of Knee Osteoarthritis: A Randomized Controlled Trial

This randomized controlled trial aims to compare the effectiveness of laser therapy and iontophoresis in patients with knee osteoarthritis. The study will evaluate pain reduction, functional improvement, and knee joint mobility following

Study Overview

Detailed Description

Participants will be randomly assigned into three groups receiving either laser therapy plus conventional physiotherapy, iontophoresis plus conventional physiotherapy, or conventional physiotherapy alone. Outcome measures will be assessed before and after treatment

Study Type

Interventional

Enrollment (Estimated)

66

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • * Age 45-65 years.

    • Diagnosed primary knee osteoarthritis (Grade I-II).
    • Both genders.
    • Ability to follow treatment protocol.

Exclusion Criteria:

  • * Previous knee surgery.

    • Intra-articular injections within last 6 months.
    • Pacemaker.
    • Skin lesions at treatment area.
    • Severe neurological or cardiovascular disorders.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Group A:
Low-Level Laser Therapy
Low-level laser therapy combined with conventional physical therapy for patients with knee osteoarthritis to reduce pain and improve functional mobility and knee joint range of motion
Conventional physical therapy program for patients with knee osteoarthritis including therapeutic exercises, stretching, strengthening exercises, and pain relief modalities to improve knee function and mobility.
Active Comparator: Group B
Iontophoresis
Conventional physical therapy program for patients with knee osteoarthritis including therapeutic exercises, stretching, strengthening exercises, and pain relief modalities to improve knee function and mobility.
Iontophoresis using dexamethasone combined with conventional physical therapy for patients with knee osteoarthritis to reduce pain and improve physical function and knee joint mobility
Active Comparator: Group C
Conventional Physical Therapy Only
Conventional physical therapy program for patients with knee osteoarthritis including therapeutic exercises, stretching, strengthening exercises, and pain relief modalities to improve knee function and mobility.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Pain intensity measured using Visual Analogue Scale (VAS)
Time Frame: Baseline and after 4 weeks of treatment
Baseline and after 4 weeks of treatment
Functional disability measured using WOMAC.
Time Frame: Baseline and after 4 weeks of treatment
Baseline and after 4 weeks of treatment
3. Knee Range of Motion (ROM).
Time Frame: Baseline and after 4 weeks of treatment
Baseline and after 4 weeks of treatment

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in physical function assessed by the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Physical Function Subscale
Time Frame: Baseline (Day 0) and Week 4
The WOMAC Physical Function Subscale consists of 17 items assessing difficulty in performing daily activities. Scores range from 0 to 68, with higher scores indicating worse physical function.
Baseline (Day 0) and Week 4
2. Reduction of joint stiffness.
Time Frame: Baseline and after 4 weeks of treatment
Baseline and after 4 weeks of treatment
Change in daily activities performance assessed by the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Physical Function Subscale
Time Frame: Baseline (Day 0) and Week 4
The WOMAC Physical Function Subscale consists of 17 items assessing difficulty in activities of daily living. Scores range from 0 to 68, with higher scores indicating worse functional limitation.
Baseline (Day 0) and Week 4

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Study Chair: hane mohamed hamed, PHD, professor of orthopedic surgery depaetment of orthopedic surgery faculty of medicine kafrelsheikh university
  • Study Chair: mahmoud mohamed ewida, PHD, professor of basic sciences for physical therapy department of basic sciences for physical therapy faculty oh physical therapy kafrelsheikh university

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

August 1, 2026

Primary Completion (Estimated)

October 30, 2026

Study Completion (Estimated)

April 1, 2027

Study Registration Dates

First Submitted

June 12, 2026

First Submitted That Met QC Criteria

June 18, 2026

First Posted (Actual)

June 24, 2026

Study Record Updates

Last Update Posted (Actual)

June 24, 2026

Last Update Submitted That Met QC Criteria

June 18, 2026

Last Verified

June 1, 2026

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Clinical Trials on Knee Arthritis Osteoarthritis

Clinical Trials on Low-Level Laser Therapy

Subscribe