Effect of Paraffin Wax on Joint Contractures

Effects of Paraffin Wax Therapy on Passive Range of Motion Post-burn Injury: a Pilot Randomized Control Trial

Limited studies have objectively evaluated the benefit on skin pliability, and relieving itch and pain of paraffin wax, nor has paraffin wax treatment been compared to mineral oil, which is an ingredient in therapeutic paraffin wax. The objective of this study is to examine the immediate impact after paraffin treatment compared with mineral oil controls on joint passive range of motion.

Study Overview

Status

Not yet recruiting

Detailed Description

The development of joint contractures after a burn injury represents one of the most important morbidities leading to reduced function and quality of life. Paraffin wax is commonly applied to contracted joints for its proposed benefits of increasing skin pliability, and/or relieving itch and pain. This pilot study will determine the feasibility of performing a fully powered study to objectively evaluate whether paraffin wax therapy significantly improves PROM in adult burn survivors with joint contractures of greater than 15% normal joint ROM (upper or lower extremity) compared to equivalent mineral oil treated joint contractures. This study will characterize the changes in PROM, AROM, itch, and pain in adult burn survivors immediately after the application of paraffin wax treatment relative to an intra-individual control scar treated with mineral oil. This will be a prospective, evaluator-blinded, intra-individual, randomized, controlled, pre-post pilot study.

Study Type

Interventional

Enrollment (Estimated)

12

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 Contact Backup

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

16 years and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Adult burn survivors (16 years and older)
  • Have joint contractures ≥15% normal PROM at two different joints directly related to their burn injury/scars
  • Are proficient in English and/or French
  • Provide informed consent

Exclusion Criteria:

  • Patients who have a cognitive/psychiatric condition that could impair their understanding of the consent process or adherence to protocol procedures
  • Patients with neurological impairments related to their burn injury, such as a drop foot or a drop wrist
  • Patients with pre-burn joint pathology that limited their PROM

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
Experimental: Joint contractures 1 wax, 2 oil

Two selectionned joint contractures on a single participant. Interventions : one joint with paraffin wax, second joint with mineral oil

Application of Paraffin wax on joint contracture for 20 mins before removal

Application of Mineral oil on joint contracture for 20 mins before removal

Experimental: Joint contractures 1 oil, 2 wax

Two selectionned joint contractures on a single participant. Interventions : one joint with mineral oil, second joint with paraffin wax

Application of Paraffin wax on joint contracture for 20 mins before removal

Application of Mineral oil on joint contracture for 20 mins before removal

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
PROM changes
Time Frame: 20 minutes (enrollment to end of visit)

Passive range of motion of joint contractures treated with Paraffin wax or Mineral oil, before and after treatment, following regular and revised scar goniometry in extension and flexion

20 minutes (enrollment to end of visit)

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
AROM changes
Time Frame: 20 minutes (enrollment to end of visit)

active range of motion of joint contractures treated with paraffin wax or mineral oil, before and after treatment, following regular and revised scar goniometry in extension and flexion

20 minutes (enrollment to end of visit)
Pain changes in joint contractures
Time Frame: 20 minutes (enrollment to end of visit)

Subjective pain of joint contractures treated with paraffin wax or mineral oil (before and after) with Visual analog thermometer

20 minutes (enrollment to end of visit)
Itch changes in joint contractures
Time Frame: 20 minutes (enrollment to end of visit)

Subjective itch of joint contractures treated with paraffin wax or mineral oil (before and after) with Visual analog thermometer

20 minutes (enrollment to end of visit)

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Bernadette Nedelec, PhD, OT(c), Centre hospitalier de l'Université de Montréal (CHUM)

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)

October 1, 2026

Primary Completion (Estimated)

October 1, 2028

Study Completion (Estimated)

October 1, 2028

Study Registration Dates

First Submitted

September 18, 2026

First Submitted That Met QC Criteria

September 18, 2026

First Posted (Actual)

September 23, 2026

Study Record Updates

Last Update Posted (Actual)

September 28, 2026

Last Update Submitted That Met QC Criteria

September 24, 2026

Last Verified

September 1, 2026

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

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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