The Precise Midline Positioning Instrument for Le Fort I Osteotomy

Abstract

To reduce the deviations in the horizontal direction of posterior maxilla during the maxilla Le Fort I osteotomy, the authors develop and validate the precise midline positioning instrument for Le Fort I osteotomy, which can guide the precise relocation of the truncated maxillary bone segment. The patent application for the precise midline positioning instrument for Le Fort I osteotomy is already submitted (patent no: 201711245533.6, China). The accuracy of Le Fort I osteotomy can be improved significantly, because of the amplification effect of this patent on the rotation/micro-movement of the posterior maxilla in all directions to achieve the precise movement and pairing of the maxillary bone segment. And this method is simple, efficient, and laborsaving.

Smooth Extubation Techniques in Pediatric Patients After LeFort I Osteotomy

“…DFMs can be corrected with orthognathic surgical procedures, such as the LeFort I osteotomy, mandibular ramus sagittal osteotomy, and combined surgery [ 1 , 3 ]. The LeFort I osteotomy is the most commonly used orthognathic surgical method and consists of an intermaxillary ligation, with an external arch that is fixed to the skull with multiple screws, an intraoral splint whose fixation to the external traction hooks is intranasal and with surgical wires [ 4 ]. Following a LeFort I osteotomy, airway alterations occur in patients, which are caused by the devices placed in the maxilla and nostrils, in addition to bleeding from the manipulated bone segments [ 3 , 4 ].…”