Anatomic basis of Le Fort 1 impaction osteotomy: a radiological study

Abstract

According to our results, in impaction Le Fort 1 osteotomy, the bone resection must pass 20 mm above the alveolar border in canine area, and 15 mm above the alveolar border in molar area. The resection has to end less than 20 mm above the inferior border of the pterygomaxillary suture. The vertical height of the infraorbital foramen is a consistent landmark for repositioning of the palate in a horizontal plane.

Radiographic Analysis of Posterior Airway Variation, Gonial Angle, Mandibular Length and Facial Height in Patients Submitted to Vertical Mandible Osteotomy

“…Other authors observed that patients submitted to BSSO had a greater recidivation of the Sella-Nasio-Ponto B angle with greater anterior movement of Pogonium and ment than those submitted to IVRO [3].…”

“…Deformities can be defined as changes in the development of facial bones, especially of the maxilla and mandible, and may cause changes in other structures, organs, and systems, such as the airways [2,3].…”

“…Since the nineteenth century, several osteotomies in the mandible were described [3]. The first osteotomy was described by Hullihen and consisted of a cut in the body of the mandible in order to close an open bite, which was a consequence of a cicatricial retraction of a burn in the neck [3].…”

“…Another proposed technique was a resection of the condyle [3,4]. Later Kostecka diffused the Osteotomy of the Colony of the Condyle realized blindly with a Mountain of Gigli and Smith and Johnson described to it with extraoral access [3].…”

“…Another proposed technique was a resection of the condyle [3,4]. Later Kostecka diffused the Osteotomy of the Colony of the Condyle realized blindly with a Mountain of Gigli and Smith and Johnson described to it with extraoral access [3]. Castro proposed a condyle osteotomy without bone resection to increase the area of bone contact and he called it "Modified osteoplasty of the mandibular ramus" [3].…”