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Condylar position control during maxillary surgery: the condylar positioning appliance and three-dimensional double
R Schwestka1, D Engelke, D Kubein-Meesenburg
1Georg-August-University, Department of Orthodontics, Göttingen, Germany.
The International Journal of Adult Orthodontics and Orthognathic Surgery
|January 1, 1990
Summary
This study introduces a new method for maxilla and condyle positioning after Le Fort I osteotomy, preserving vertical dimension. The technique utilizes a condylar positioning appliance and double splints for precise surgical outcomes.
Area of Science:
- Oral and Maxillofacial Surgery
- Orthognathic Surgery
- Surgical Techniques
Background:
- Le Fort I osteotomy is a common procedure for correcting midface discrepancies.
- Maintaining vertical dimension and centric relation during osteotomy is crucial for functional and aesthetic outcomes.
- Existing methods may have limitations in precisely controlling maxillomandibular positioning.
Purpose of the Study:
- To present a novel method for positioning the maxilla and condyle following Le Fort I osteotomy.
- To maintain preoperative vertical dimension and centric relation throughout the surgical process.
- To enhance the accuracy and predictability of orthognathic surgery outcomes.
Main Methods:
- A novel condylar positioning appliance is utilized, fixed to the zygoma and mandibular ramus.
- The appliance orients the mandible in centric relation during cast and actual surgery.
- A three-dimensional double splint method with prefabricated splints aids in precise maxilla positioning.
- The method ensures the fixed mandibular position is maintained during maxilla repositioning.
Main Results:
- The described technique successfully maintains the patient's vertical dimension.
- Accurate condylar positioning in centric relation is achieved.
- Three-dimensional positioning of the maxilla is facilitated by the double splint system.
- The method allows for rotational adjustment of the mandible to the new centric occlusion postoperatively.
Conclusions:
- This new method offers a reliable approach for stabilizing the maxilla and condyle after Le Fort I osteotomy.
- It effectively preserves vertical dimension and facilitates accurate maxillomandibular reconstruction.
- The technique holds potential for improving outcomes in orthognathic surgery.