Reconstruction of Mandibular Segmental Detects Using Transport Disk Distraction Osteogenesis

Area of Science:

• Oral and Maxillofacial Surgery
• Regenerative Medicine
• Biomaterials Engineering

Background:

• Distraction osteogenesis (DO) is a key technique for bone defect reconstruction.
• Segmental mandibular defects pose significant reconstructive challenges.
• Transport disc distraction osteogenesis (TDDO) offers a potential solution.

Purpose of the Study:

• To evaluate the clinical feasibility and efficiency of TDDO.
• To assess TDDO for mandibular segmental defect reconstruction.
• To investigate subsequent dental implant treatment outcomes.

Main Methods:

• Six patients with ameloblastoma or keratocystic odontogenic tumor underwent TDDO.
• Preoperative planning included CT scans and panoramic radiography.
• TDDO was performed concurrently with tumor resection, followed by bone grafting and internal fixation.

Main Results:

• All patients completed treatment without device failure or tumor recurrence.
• Distraction length averaged 35-48 mm over 21-33 weeks.
• High ossification levels were achieved, with good facial profiles and successful dental implants in three patients.

Conclusions:

• TDDO is clinically feasible and efficient for mandibular segmental defect reconstruction.
• TDDO facilitates successful secondary dental implant treatment.
• This technique shows promise for improving patient outcomes in complex maxillofacial reconstructions.