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[Mandibular-driven simultaneous maxillo-mandibular distraction for hemifacial microsomia with rapid prototyping
Zhonghua Zheng Xing Wai Ke Za Zhi = Zhonghua Zhengxing Waike Zazhi = Chinese Journal of Plastic Surgery
|March 15, 2014
Summary
This study demonstrates that rapid prototyping technology aids in precise surgical planning for mandibular-driven simultaneous maxillo-mandibular distraction, effectively correcting hemifacial microsomia with improved facial symmetry and occlusion.
Area of Science:
- Craniofacial surgery
- Biomedical engineering
- Orthognathic surgery
Background:
- Hemifacial microsomia presents significant facial asymmetry.
- Correction often requires complex surgical interventions.
- Advancements in technology can improve surgical outcomes.
Purpose of the Study:
- To evaluate the clinical application of mandibular-driven simultaneous maxillo-mandibular distraction.
- To assess the utility of rapid prototyping technology in surgical planning for this procedure.
Main Methods:
- Utilized rapid prototyping to create patient-specific skull models for precise osteotomy design.
- Performed Le Fort I and mandibular ramus osteotomies.
- Employed internal mandibular distractors and occlusal titanium pins for distraction.
Main Results:
- Achieved complete distraction as per preoperative design in all five patients.
- Reported no instances of infection or dysosteogenesis.
- Observed significant improvement in facial asymmetry and occlusal plane correction, with distraction distances ranging from 16 to 28 mm.
Conclusions:
- Rapid prototyping technology facilitates accurate pre-operative osteotomy design.
- Mandibular-driven simultaneous maxillo-mandibular distraction is a viable and effective method for correcting hemifacial microsomia.
- The technique shows promise for widespread clinical application.
