Brief Summary

PRF of the masticatory muscles (masseter, temporalis, medial and lateral pterygoid muscle) can improve pain intensity and functional recovery of the jaw in patients with extra-articular TMD.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
30

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Mar 2018

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 1, 2018

Completed
6 months until next milestone

First Submitted

Initial submission to the registry

August 20, 2018

Completed
6 months until next milestone

First Posted

Study publicly available on registry

February 20, 2019

Completed
9 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2019

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2019

Completed
Last Updated

February 20, 2019

Status Verified

February 1, 2019

Enrollment Period

1.8 years

First QC Date

August 20, 2018

Last Update Submit

February 19, 2019

Conditions

Outcome Measures

Primary Outcomes (1)

  • Change in static and dynamic TMD pain

    using Numerical Rating Scale (NRS) at the end of the procedure (NRS post-procedure), and in the follow-up at 4 weeks and 12 weeks post-procedure.

    30 minutes, 4 and 12 weeks post procedure

Secondary Outcomes (4)

  • change in maximal mouth opening

    30 minutes, 4 and 12 weeks post procedure

  • Pain medications use

    30 minutes, 4 and 12 weeks post procedure

  • Change in lateral jaw excursion

    30 minutes, 4 and 12 weeks post procedure

  • Change in jaw protrusion

    30 minutes, 4 and 12 weeks post procedure

Study Arms (2)

Experimental group

EXPERIMENTAL

Ultrasound guidance will be used with a high- frequency linear transducer.After the joint has been identified, the researcher will ask the patient to hold mouth in a neutral position. Masseter, temporalis, medial and lateral pterygoid muscles will be then identified, and with a sterile marker the operator will determine the best point of entry for each muscle injection. Lidocaine 1% will be injected for the skin, always under ultrasound vision. RF needle (18 G, 50 mm of length and active tip of 3 mm) will be inserted into each one of the muscles mentioned previously. Then, through the RF needle, 0.5 ml of normal saline will be injected (to decrease the impedance of the tissues), the electrode will be inserted, and extra-articular PRF will be performed during 4 minutes at 42 degrees Celsius for each muscle. At the end of each muscle treatment, 1 ml of local anesthetic (lidocaine 1%) will be injected through the RF needle, and the needle will be removed.

Other: Radiofrequency

Control Group

SHAM COMPARATOR

Ultrasound guidance will be used with a high- frequency linear transducer. After the joint has been identified, the researcher will ask the patient to hold his or her mouth in a neutral position. Masseter, temporalis and lateral pterigoid muscles will be then identified, and with a sterile marker the operator will determine the best point of entry for each muscle injection (mainly over the most common sites of trigger points for the masticatory muscles). Lidocaine 1% will be injected for the skin, always under ultrasound vision. RF needle (18 G, 50 mm of length and active tip of 3 mm) will be inserted into each one of the muscles mentioned previously. Then, through the RF needle, an electrode will not be inserted, but a simulation for PRF will be done during 4 minutes for each muscle (sham). At the end of each muscle puncture, 1 ml of local anesthetic (lidocaine 1%) will be injected through the needle, and the needle will be removed.

Other: Radiofrequency

Interventions

See previous page

Control GroupExperimental group

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Thirty consecutive patients, male and female, between 18 and 80 years old, with extra-articular TMD as diagnosed by a specialist of the Maxillofacial team based on Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) for Clinical and Research Applications, with chronic pain related to TMD (for more than three months according to IASP definition), and who have plateaued with conventional treatment in the past three months, will be prospectively recruited at the Maxillofacial Surgery Clinic

You may not qualify if:

  • Patients younger than 18 years old.
  • ASA physical status \>3,
  • Contraindication for local anesthetics or RF.
  • Immunosuppression or high risk of infection.
  • Coagulation impairment.
  • Patients with psychiatric illness.
  • Patients with cognitive impairment.
  • Patients currently taking opioids.
  • Patients that had botulinum toxin or steroid injections in the head or neck area in the past three months.
  • Patient with pacemaker.
  • Patient with prosthetic joint replacement, or placement of any metallic surgical device in or around the area of treatment.
  • Infection of the TMJ.
  • Muscular dystrophy.
  • Pathology or impaired masticatory muscles.
  • Pregnancy.
  • +3 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Montreal General Hospital

Montreal, Quebec, H3A 1A1, Canada

RECRUITING

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

August 20, 2018

First Posted

February 20, 2019

Study Start

March 1, 2018

Primary Completion

December 1, 2019

Study Completion

December 31, 2019

Last Updated

February 20, 2019

Record last verified: 2019-02

Locations