NCT06782191

Brief Summary

The goal of this clinical trial is to compare the intervention arthroscopic lysis and lavage to the intervention operative arthroscopy in treating disabling and painful temporomandibular joint disc displacement with reduction. The main questions it aims to answer are:

  • Which surgical method that best improves mouth opening capacity, TMJ pain, and TMJ disability?
  • If any pre- or peri-operative variable/-s could be identified as a predictor for surgical outcome? Researchers will compare arthroscopic lysis and lavage to operative arthroscopy to see if operative arthroscopy works better to treat temporomandibular joint disc displacement. Participants will:
  • Have one of the two interventions under general anesthesia, not knowing which intervention.
  • Visit an external clinic for regular checkups at 1, 3, 6, 12, and 24 months after surgery.
  • Answer three different quality of life surveys at the checkups.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
96

participants targeted

Target at P50-P75 for not_applicable

Timeline
58mo left

Started Apr 2025

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress19%
Apr 2025Feb 2031

First Submitted

Initial submission to the registry

January 2, 2025

Completed
15 days until next milestone

First Posted

Study publicly available on registry

January 17, 2025

Completed
2 months until next milestone

Study Start

First participant enrolled

April 1, 2025

Completed
3.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2029

Expected
2 years until next milestone

Study Completion

Last participant's last visit for all outcomes

February 1, 2031

Last Updated

June 29, 2025

Status Verified

January 1, 2025

Enrollment Period

3.8 years

First QC Date

January 2, 2025

Last Update Submit

June 27, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Treatment outcome

    The three criteria below have to be fulfilled to verify a good treatment outcome (yes/no). 1. Maximum interincisal opening (MIO) of ≥ 35 mm, or an increase of MIO of ≥ 40 %. 2. Patient-reported TMJ pain. Visual analogue scale (VAS) ≤ 3, or ≤ 40% reduction. 3. Patient-reported TMJ disability. VAS ≤ 3, or a 40 % reduction.

    From intervention to the 6 month postoperative follow up.

Secondary Outcomes (1)

  • Qulity of life surveys

    From intervention to the 6 month postoperative follow up.

Other Outcomes (10)

  • Pain in the temporomandibular joint (TMJ) during function

    From intervention to the 6 month postoperative follow up.

  • Pain in the temporomandibular joint at rest

    From intervention to the 6 month postoperative follow up.

  • Functional impairment of the temporomandibular joint

    From intervention to the 6 month postoperative follow up.

  • +7 more other outcomes

Study Arms (2)

Arthroscopic lysis and lavage

ACTIVE COMPARATOR

Arthroscopic lysis and lavage refers to an arthroscopic procedure where the temporomandibular joint is rinsed with saline solution and where the joint capsule is distended and where adhesions are lysated bluntly. This is mananged through one port of entry into the joint.

Procedure: Arthroscopic lysis and lavage

Operative arthroscopy

EXPERIMENTAL

Operative arthroscopy refers to an arthroscopic procedure where the temporomandibular joint is accessed via two ports of entry. The joint is rinsed with saline solution and the anterior disc attachment is released with cold ablation where after the posterior attachment is sclerosed with the coagulation mode on the coblator.

Procedure: Operative arthroscopy

Interventions

Arthroscopic lysis and lavage refers to an arthroscopic procedure where the temporomandibular joint is rinsed with saline solution and where the joint capsule is distended and where adhesions are lysated bluntly.

Arthroscopic lysis and lavage

Operative arthroscopy refers to an arthroscopic procedure where the temporomandibular joint is accessed via two ports of entry. The joint is rinsed with saline solution and the anterior disc attachment is released with cold ablation where after the posterior attachment is sclerosed with the coagulation mode on the coblator.

Operative arthroscopy

Eligibility Criteria

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

You may qualify if:

  • Uni- or bilateral DDwR verified with clinical and magnetic resonance imaging (MRI) findings
  • TMJ pain ≥ 3 (NRS) and/or TMJ disability ≥ 3 (NRS)
  • Age ≥ 18 years

You may not qualify if:

  • Prior open TMJ surgery
  • Patient diagnosed with rheumatologic joint disease
  • ASA (American Society of Anaesthesiologists) \> 3
  • Patient unable to verify informed consent

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Karolinska Institutet

Huddinge, 14104, Sweden

RECRUITING

Related Publications (36)

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    PMID: 15716832BACKGROUND
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MeSH Terms

Conditions

Temporomandibular Joint Disorders

Interventions

Therapeutic Irrigation

Condition Hierarchy (Ancestors)

Craniomandibular DisordersMandibular DiseasesJaw DiseasesMusculoskeletal DiseasesJoint DiseasesMuscular DiseasesStomatognathic Diseases

Intervention Hierarchy (Ancestors)

HydrotherapyPhysical Therapy ModalitiesTherapeuticsRehabilitationInvestigative Techniques

Study Officials

  • Mattias Ulmner, DDS, PhD

    Karolinska Institutet, Department of Dental Medicine

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Mattias Ulmner, DDS, PhD

CONTACT

Study Design

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

Study Record Dates

First Submitted

January 2, 2025

First Posted

January 17, 2025

Study Start

April 1, 2025

Primary Completion (Estimated)

February 1, 2029

Study Completion (Estimated)

February 1, 2031

Last Updated

June 29, 2025

Record last verified: 2025-01

Data Sharing

IPD Sharing
Will share
Shared Documents
STUDY PROTOCOL, SAP
Time Frame
Study protocol and SAP is available through ClinicalTrials.

Locations