Therapeutic Effect of Proliferative Therapy (prolotherapy) on Pain Using Injectable Hypertonic Dextrose 25% Versus Injectable Dextrose 10% in Retrodiscal Tissues in Patients with Anterior Disc Displacement with Reduction: a Randomized Clinical Trial .

March 2, 2025 updated by: Nourhan Moustafa, Cairo University
prolotherapy is an injection-based treatment method used to alleviate pain, particularly musculoskeletal pain associated with chronic ligament and tendon injuries. The process involves the injection of a solution, typically containing dextrose (a sugar), saline, or other irritants, into the affected tissues. Prolotherapy is believed to stimulate healing by causing a mild inflammatory response that promotes the regeneration of ligaments, tendons, and other connective tissues. This review explores the existing literature on the therapeutic effects of prolotherapy for pain management.

Study Overview

Detailed Description

Anterior disc displacement with reduction (ADDR) is a common temporomandibular joint (TMJ) disorder, characterized by the displacement of the articular disc in front of the condyle during mouth opening, which then reduces upon closing. This condition often results in pain, restricted jaw movement, and clicking sounds. Conservative treatments, including physical therapy, splint therapy, and pharmacological interventions, are commonly used, but these may not always yield long-term results. Recent studies have explored the role of prolotherapy, particularly the use of dextrose injections, in treating TMJ disorders, including ADDR. Among the variations in prolotherapy, the concentration of dextrose solution-commonly 10% and 25%-is often debated for its potential effectiveness in promoting healing and pain relief. Prolotherapy is often compared to other injection-based treatments, such as corticosteroid injections and platelet-rich plasma (PRP) therapy. A study by Chou et al. (2017) found that prolotherapy was more effective than corticosteroid injections for the management of chronic tendon and ligament pain, with longer-lasting effects and fewer side effects. Similarly, prolotherapy was found to be as effective as PRP for certain conditions, such as chronic tendinopathies, although PRP may offer additional benefits in tissue regeneration due to its higher concentration of growth factors (Gosens et al., 2020).

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The literature supports prolotherapy as a promising treatment for various chronic pain conditions, especially those involving tendons, ligaments, and joints. Evidence from clinical trials suggests that prolotherapy is effective in reducing pain, improving function, and promoting tissue regeneration in conditions like chronic low back pain, knee osteoarthritis, and soft tissue injuries. However, despite the promising results, the overall quality of evidence remains moderate, and further large-scale, high-quality studies are needed to fully establish its efficacy and long-term outcomes. Prolotherapy is generally safe, but like any invasive treatment, it carries a risk of adverse effects, albeit minimal.

As prolotherapy continues to gain recognition in pain management, its potential as an adjunct or alternative to traditional therapies warrants further investigation.

Study Type

Interventional

Enrollment (Estimated)

24

Phase

  • Phase 2
  • Phase 3

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

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Exclusion criteria:

  • The clinical or radiographic signs of disc displacement without reduction .
  • A history of allergic reactions to any components of the injectable solution.
  • Blood dyscrasias and systemtic diseases .
  • Previous surgery of the affected joint.
  • Infection in pre-auricular area

Inclusion criteria:

Patients should have one or more signs and symptoms of these

  • Symptoms: Patients who report typical symptoms of TMJ dysfunction, such as pain, discomfort, or clicking sounds in the joint, especially when opening or closing the mouth.
  • Mouth Opening: Limited range of motion or difficulty with full mouth opening .
  • Clicking: Audible clicking.
  • Pain: Pain or tenderness around the TMJ, often radiating to the ear, temple, or neck

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: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: injection of dextrose 10% in retrodiscal tissues
GROUP 1 will recieve 10% dextrose
group 1 will recieve 10% dextrose in retrodiscal tissues
Experimental: injection of dextrose 25% in retrodiscal tissues
group 2 will recieve 25% dextrose
group 2 will recieve 25% dextrose

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in Pain Severity Measured by Numerical Rating Scale (NRS)
Time Frame: Measured at baseline, 1 month, 3 months, and 6 months after injections.
Pain severity will be assessed using the Numerical Rating Scale (NRS) (0-10), where 0 = no pain and 10 = severe pain. Participants will report their pain levels at each time point. The mean change in NRS scores from baseline will be calculated and analyzed . Data Aggregation: Mean change in NRS score with standard deviation (SD)
Measured at baseline, 1 month, 3 months, and 6 months after injections.

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in Maximal Interincisal Opening (MIO) Measured in Millimeters
Time Frame: Measured at baseline, 1 month, 3 months, and 6 months after injections
Maximal interincisal opening (MIO) will be measured using a digital caliper, with values recorded in millimeters (mm). The mean change in MIO from baseline will be reported . Data Aggregation: Mean change in MIO (mm) with standard deviation (SD).
Measured at baseline, 1 month, 3 months, and 6 months after injections
Presence or Absence of Joint Clicking (Binary Outcome)
Time Frame: Measured at baseline, 1 month, 3 months, and 6 months after injections

Joint clicking will be assessed as a binary outcome (Yes/No) based on clinical examination and patient-reported symptoms. The percentage of participants with joint clicking at each time point will be reported.

Data Aggregation: Percentage of participants with joint clicking at each time point

Measured at baseline, 1 month, 3 months, and 6 months after injections

Collaborators and Investigators

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

Investigators

  • Study Director: nadia galal Professor, phd, Cairo University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the 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 (Estimated)

March 3, 2025

Primary Completion (Estimated)

September 3, 2025

Study Completion (Estimated)

October 1, 2025

Study Registration Dates

First Submitted

February 22, 2025

First Submitted That Met QC Criteria

March 2, 2025

First Posted (Actual)

March 25, 2025

Study Record Updates

Last Update Posted (Actual)

March 25, 2025

Last Update Submitted That Met QC Criteria

March 2, 2025

Last Verified

March 1, 2025

More Information

Terms related to this study

Other Study ID Numbers

  • prolotherapy injection in tmj

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

product manufactured in and exported from the U.S.

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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