Shock Wave Versus Traditional Physical Therapy for Adult Chronic Knee Osteoarthritis

March 18, 2026 updated by: Magdy Mohamed Aly Shabana, German International University

Shock Wave Versus Traditional Physical Therapy for Adult Chronic Knee Osteoarthritis: A Prospective Randomized Controlled Trial

This study aims to compare the effectiveness of extracorporeal shock wave therapy (ESWT) versus structured therapeutic exercise in patients with chronic knee osteoarthritis (KOA), with respect to pain reduction and improvement of knee function.

Study Overview

Detailed Description

Knee osteoarthritis (KOA) is a highly prevalent chronic degenerative joint disease characterized by progressive cartilage loss, chronic pain, stiffness, functional disability, and reduced quality of life in adults, particularly the elderly.

Extracorporeal shock wave therapy (ESWT) has emerged as a non-invasive physical modality that delivers acoustic pressure waves to musculoskeletal tissues, stimulating biological responses such as enhanced microcirculation, anti-inflammatory cytokine modulation, neovascularization, cartilage and bone repair processes, and decreased pain transmission.

Study Type

Interventional

Enrollment (Estimated)

40

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

Study Locations

      • Cairo, Egypt, 12613
        • Recruiting
        • German International University
        • 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:

  • Adults ≥ 40 years with clinical and radiographic diagnosis of chronic knee osteoarthritis (KOA) (Kellgren-Lawrence grade II-III).
  • Both sexes.
  • Persistent knee pain ≥ 3 months.
  • Ability to provide consent and participate in interventions.

Exclusion Criteria:

  • Prior knee surgery within last 6 months.
  • Intra-articular injections in the last 3 months.
  • Systemic inflammatory arthritis or other neurological conditions affecting gait.

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: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: ESWT Group
Patients will receive extracorporeal shock wave therapy.
Patients will receive extracorporeal shock wave therapy.
Active Comparator: Exercise Therapy Group
Patients will undergo a structured exercise therapy program.
Patients will undergo a structured exercise therapy program.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in pain intensity
Time Frame: 5-week after intervention
Change in pain intensity will be assessed using the Visual Analogue Scale (VAS) which is a 10-cm horizontal line used to measure pain intensity, ranging from (0) "no pain" to (10) "worst imaginable pain".
5-week after intervention

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Stiffness assessment
Time Frame: 5-week after intervention

Stiffness will be assessed using the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC).

WOMAC will be recorded at baseline, at the end of the intervention period, and during follow-up. Higher scores indicate greater symptom severity.

5-week after intervention
Assessment of physical function
Time Frame: 5-week after intervention

Physical function will be assessed using the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC).

WOMAC will be recorded at baseline, at the end of the intervention period, and during follow-up. Higher scores indicate greater symptom severity.

5-week after intervention
Knee range of motion
Time Frame: 5-week after intervention
Knee range of motion (ROM) will be assessed.
5-week after intervention
Incidence of adverse events
Time Frame: 5-week after intervention
Incidence of adverse events will be recorded.
5-week after intervention

Collaborators and Investigators

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

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 (Actual)

March 18, 2026

Primary Completion (Estimated)

November 30, 2026

Study Completion (Estimated)

November 30, 2026

Study Registration Dates

First Submitted

March 9, 2026

First Submitted That Met QC Criteria

March 9, 2026

First Posted (Actual)

March 13, 2026

Study Record Updates

Last Update Posted (Actual)

March 19, 2026

Last Update Submitted That Met QC Criteria

March 18, 2026

Last Verified

March 1, 2026

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

The data will be available upon a reasonable request from the corresponding author after the end of study for one year.

IPD Sharing Time Frame

After the end of study for one year.

IPD Sharing Access Criteria

The data will be available upon a reasonable request from the corresponding author.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL

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.

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