Surgical Approach & Incisions
Conditions
Keywords
condylectomy, TMJ function, intraoral approach
Brief summary
This study will apply the digital techniques to do the condylectomy through an intraoral approach without needing to do the intraoral vertical ramus osteotomy (IVRO). This new surgical technique will greatly maintain the TMJ anatomy structure, reduce the risk and increase the precision of the operation procedure.
Detailed description
In this study we will use the digital techniques such as pre-surgical visual treatment planning, real time surgical navigation system, endoscope techniques, to do the intraoral condylectomy via coronoid process resection. After the condyle lesion resection, the coronoid process will be reimplanted and fixed by stainless steel wire. By using these techniques we can safely and precisely cut proper size and position of the condyle lesion as we pre-surgically designed, and at the same time greatly maintain the temporomandibular joint anatomy structure. Since we don't need to do the mandible vertical ramus osteotomy, and no conventional extraoral incision will be needed, the surgical injury will be minimized and the TMJ function will recover soon postoperatively. Additionally, the intraoral approach can avoid the risk of facial nerve injury, salivary fistula and skin scar, so it has better aesthetic results than the preauricular approach and the submandibular approach.
Interventions
PROCEDUREcondylectomy
The condylectomy via intraoral approach will avoid the risk of facial nerve injury and skin scar compared with the preauricular incision.And it can also greatly reserve the temporomandibular jiont anatomy and function.
Sponsors
Beijing Municipal Science & Technology Commission
Peking University
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
15 Years to 70 Years
Healthy volunteers
No
Inclusion criteria
* Patients with mandible condylar hyperplasia or osteoma who need to do the condylectomy to prevent the active growth of the affected mandible condyle and the consequence progressive facial asymmetry * Usually the patients have TMJ functional disorder; and the SPECT shows difference greater than 20% (pixel count) between the affected side and the contralateral normal side.
Exclusion criteria
* Patients with contradictions to do the operation procedure and general anesthesia, patients refuse to accept the condylectomy, or patients can't afford the extra cost for the application of digital techniques are excluded from this study
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| complications of condylectomy | post-operative day 7 and 6 months | to record the complications of the operation and the TMJ function recovering. |
Countries
China
Contacts
Primary Contactxiaoxia wang
Outcome results
None listed