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Extracapsular Supradiscal Subperiosteal Surgical Procedure for Temporomandibular Joint Internal Derangement Correction: Novel Technique

Extracapsular Supradiscal Subperiosteal Surgical Procedure for Temporomandibular Joint Internal Derangement Correction: Novel Technique''

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06867744
Enrollment
65
Registered
2025-03-10
Start date
2022-01-01
Completion date
2025-03-01
Last updated
2025-03-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

TMJ - Dislocation of Temporomandibular Joint, TMJ Internal Derangement, TMJ - Oral &Maxillofacial Surgery

Keywords

TMJ, TMJ derangement, extracapsular surgery, supradiscal subperiosteal technique, facial plastic surgery

Brief summary

This study aims to evaluate the efficacy of the ESS technique in correcting TMJ internal derangement, with a focus on functional outcomes and patient satisfaction.

Detailed description

Background: Internal derangement (ID) of the temporomandibular joint (TMJ) is a prevalent condition characterized by disc displacement, leading to pain, restricted mandibular mobility, and reduced quality of life. While non-surgical treatments are often the first line of management, surgical intervention becomes necessary in refractory cases. Traditional surgical methods, such as arthrocentesis and disc repositioning, have shown variable success rates, particularly in advanced stages of disc damage. This study introduces the Extracapsular Supradiscal Subperiosteal (ESS) surgical procedure, a novel technique designed to address these limitations. Therefore, current study aims to evaluate the efficacy of the ESS technique in correcting TMJ internal derangement, with a focus on functional outcomes and patient satisfaction. Patients and Methods: A prospective study was conducted on 50 patients (47 females, 3 males; age range: 11-50 years) with TMJ ID refractory to non-surgical management. The ESS procedure was performed to reposition the displaced disc and stabilize retrodiscal tissues without violating the joint capsule. Preoperative and postoperative assessments included pain levels, maximum mouth opening (MMO), and subjective patient feedback.

Interventions

PROCEDUREExtracapsular Supradiscal Subperiosteal Surgical Procedure for Temporomandibular Joint Internal Derangement Correction

Patients in a supine extended position with nasotracheal intubation; oral intubation in such cases is not suitable as it makes dissection and disc repositioning difficult and compromises the surgery results. Periauricular incision with postauricular extension; after infiltration with noradrenaline 1/200000 solution with or without zylocaine which gives better exposure and better aesthetic results. Dissection down the wound till reach the temporal fascia starting posteriorlay till the fascia blended with the zygomatic arch anteriorly; identification of temporal root of zygomatic arch using fine dissector followed by subperiosteal dissection of zygomatic arch till five mm anterior to the articular eminence of TMJ. Accurate identification of TMJ followed by meticulous subperiosteal dissection of superior margin of TMJ capsule then the dissection continued posteriorly till posterior margin; no need to dissect the bilaminar zone, and the dissection continued anteriorly down the skull base t

Sponsors

Menoufia University
CollaboratorOTHER
Sinai University
CollaboratorOTHER
Mohamed Moawed Ibrahim Ghoneim, PhD
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

A prospective study was conducted on 50 patients (47 females, 3 males; age range: 11-50 years) with TMJ ID refractory to non-surgical management. The ESS procedure was performed to reposition the displaced disc and stabilize retrodiscal tissues without violating the joint capsule. Preoperative and postoperative assessments included pain levels, maximum mouth opening (MMO), and subjective patient feedback

Eligibility

Sex/Gender
ALL
Age
11 Years to 50 Years
Healthy volunteers
No

Inclusion criteria

* Patients with stage 3 or stage 4 internal derangements of TMJ radiological and clinical findings should coincide to set up the diagnosis and predict the treatment plan.

Exclusion criteria

* Age less than 11 years old * Age more than 50 years are excluded

Design outcomes

Primary

MeasureTime frameDescription
TMJ Pain3 monthschange of pain on a visual analogue scale (VAS) from 0 to 10 with decreased number means less pain
Interincisal Distance Scorepre- and post operative (3 days)Interincisal Distance Scores from score-0 to score-3 to be identified
Jaw deviation during Mouth Opening3 daysA 13-score evaluating the jaw deviation during mouth opening from score-0 to score-12
Clicking3 monthsThe clicking during mouth opening scores among study participants, both pre- and postoperative
HIT-63 daysthe Headache impact test (HIT-6) both pre- and postoperatively among study participants

Countries

Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026