TMJ Arthroscopy Compared to Arthrocentesis in Disc Displacement Without Reduction
ACALL
Temporomandibular Joint Arthroscopic Lysis and Lavage Compared to Arthrocentesis in Disc Displacement Without Reduction: a Randomised, Double-blind, Controlled Trial
1 other identifier
interventional
100
1 country
1
Brief Summary
The goal of this clinical trial is to compare the intervention arthroscopic lysis and lavage to the intervention arthrocentesis in treating disabling and painful temporomandibular joint disc displacement without 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 arthrocentesis to see if arthroscopic lysis and lavage 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
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Apr 2025
Longer than P75 for not_applicable
1 active site
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
First Submitted
Initial submission to the registry
January 2, 2025
CompletedFirst Posted
Study publicly available on registry
January 17, 2025
CompletedStudy Start
First participant enrolled
April 1, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 1, 2028
ExpectedStudy Completion
Last participant's last visit for all outcomes
February 1, 2030
June 29, 2025
January 1, 2025
2.8 years
January 2, 2025
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. 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
EXPERIMENTALArthrocentesis
ACTIVE COMPARATORInterventions
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.
Arthrocentesis refers to a blind irrigation of the temproromandibular joint with saline solution
Eligibility Criteria
You may qualify if:
- Uni- or bilateral DDwoR affecting the patients mouth opening capacity to a range of ≤ 35 mm, verified with clinical and magnetic resonance imaging (MRI) findings.
- TMJ pain ≥ 3 (NRS)
- 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
- Karolinska Institutetlead
- Eastmaninstitutetcollaborator
- Karolinska University Hospitalcollaborator
Study Sites (1)
Karolinska Institutet
Huddinge, 14104, Sweden
Related Publications (36)
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PMID: 25123511BACKGROUND
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Mattias Ulmner, DDS, PhD
Karolinska Institutet, Department of Dental Medicine
Central Study Contacts
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, 2028
Study Completion (Estimated)
February 1, 2030
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.