Schwestka R, Engelke D, Kubein-Meesenburg D
Georg-August-University, Department of Orthodontics, Göttingen, Germany.
Int J Adult Orthodon Orthognath Surg. 1990;5(3):161-5.
A new method for positioning the maxilla and condyle after Le Fort I osteotomy maintains the patient's vertical dimension (ie, the relation of the mandible to the skull above the osteotomy plane) in the preoperative and postoperative positions during both cast surgery and actual surgery. During surgery the condylar positioning appliance is fixed to the anterolateral zygoma and the lateral cortex of the mandibular ramus bilaterally to orient the mandible in centric relation. The condylar positioning appliance is used with the three-dimensional double splint method. Two prefabricated splints enable three-dimensional positioning of the maxilla in the fixed mandibular position during surgery. Postoperatively, the mandible can be rotated into the new centric occlusion.
一种在Le Fort I型截骨术后对上颌骨和髁突进行定位的新方法，在模型手术和实际手术过程中，能保持患者术前和术后位置的垂直维度（即截骨平面上方下颌骨与颅骨的关系）。手术过程中，髁突定位装置双侧固定于颧前外侧和下颌支外侧皮质，以使下颌骨处于正中关系。髁突定位装置与三维双夹板法联合使用。两个预制夹板可在手术过程中将上颌骨在固定的下颌位置进行三维定位。术后，下颌骨可旋转至新的正中咬合位。
