Transport Distraction Osteogenesis for Ramus-Condyle Unit

Hams Hamed Abdelrahman

Status: Completed

Conditions: Bilateral or Unilateral Deficient Ramus-condyle Unit

Treatments: Device: Distraction Osteogenesis for Reconstruction of Ramus-Condyle

Study type: Interventional

Funder types: Other

Identifiers

NCT04383964

Distraction Osteogenesis

Details and patient eligibility

About

this study was done to evaluate the use of transport distraction osteogenesis in restoring the deficient condyle/ramus unit of patients with unilateral or bilateral TMJ ankylosis to correct the resultant deformity

Full description

10 patients with post ankylosis deficient ramus /condyle unit who underwent release procedure in the Maxillofacial and Plastic Surgery Department, Faculty of Dentistry, Alexandria University, Egypt.

all patients were assessed clinically and by imaging using OPG, lateral and PA cephalometry, and cone beam CT to assess the deficient ramus/condyle unit (RCU) then patients were operated using transport distraction osteogenesis to lengthen the RCU. Then follow up of all patients both clinically and radiographically was adopted.

Enrollment: 10 patients

Sex: All

Ages: 1 to 50 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Post ankylosis deformity: Bilateral or unilateral deficient ramus-condyle unit (RCU) after TMJ release

Exclusion criteria

• Mentally affected patients.
• Medically compromised patients.
• Post menopausal osteoporosis.

Trial design

Primary purpose: Treatment

Allocation: N/A

Interventional model: Single Group Assignment

Masking: None (Open label)

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10 participants in 1 patient group

Transport distraction osteogenesis

Experimental group

Description:

Locally made and designed submerged monodirectional in the vertical (Y) axis distractor was used. A transport disc is created at the remaining stump of the RCU with an L shaped osteotomy. The prepared disc is to be wide enough to fit the upper portion of the distrcator. The submerged distractor will be placed in a position to guide the transport disc moving up and backwards toward the glenoid fossa. The length of the distractor is determined according to the amount of distraction planned to reach the glenoid fossa.

Treatment:

Device: Distraction Osteogenesis for Reconstruction of Ramus-Condyle