title: Maxillary single-jaw surgery combining Le Fort I and modified horseshoe osteotomies for the correction of maxillary excess.
abstract: A modified technique of horseshoe osteotomy combined with Le Fort I osteotomy for superior and posterior repositioning of the maxilla is presented. Eight patients with maxillary excess associated with retrogenia or microgenia were treated with this technique in combination with genioplasty. The maxillary segment was repositioned a maximum of 5.0mm posteriorly and 7.0mm superiorly at point A. The mandible autorotated anterosuperiorly to achieve sound occlusion. Point B moved 2.0-10.0mm anteriorly and 5.0-10.0mm superiorly. The pogonion moved 7.0-17.0mm anteriorly in combination with genioplasty. All patients obtained sound occlusion and a good profile after the operation. Almost no skeletal relapse was observed during 1 year of postoperative follow-up. Patients with long faces with maxillary excess and retrogenia often have small, unstable condyles. In these cases, because surgical intervention to the ramus can result in postoperative progressive condylar resorption, maxillary single-jaw surgery with a horseshoe osteotomy, thereby avoiding ramus intervention, is a less invasive option.
authors.affiliation: Division of Oral and Maxillofacial Surgery, Department of Science of Physical Function, Kyushu Dental University, Kitakyushu, Japan. Electronic address: tominaga@kyu-dent.ac.jp.
authors.forename: K
authors.initials: K
authors.lastname: Tominaga
authors.affiliation: Division of Oral and Maxillofacial Surgery, Department of Science of Physical Function, Kyushu Dental University, Kitakyushu, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Habu
authors.affiliation: Division of Oral and Maxillofacial Surgery, Department of Science of Physical Function, Kyushu Dental University, Kitakyushu, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Iwanaga
authors.affiliation: Division of Oral and Maxillofacial Surgery, Department of Science of Physical Function, Kyushu Dental University, Kitakyushu, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Kodama
authors.affiliation: Division of Oral Medicine, Department of Science of Physical Function, Kyushu Dental University, Kitakyushu, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Tsurushima
authors.affiliation: Division of Oral Medicine, Department of Science of Physical Function, Kyushu Dental University, Kitakyushu, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Kokuryo
authors.affiliation: Division of Oral Medicine, Department of Science of Physical Function, Kyushu Dental University, Kitakyushu, Japan.
authors.forename: I
authors.initials: I
authors.lastname: Miyamoto
authors.affiliation: Division of Orofacial Function and Orthodontics, Department of Science of Health Improvement, Kyushu Dental University, Kitakyushu, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Fukudome
authors.affiliation: Division of Oral Medicine, Department of Science of Physical Function, Kyushu Dental University, Kitakyushu, Japan.
authors.forename: I
authors.initials: I
authors.lastname: Yoshioka
mesh_terms: D000328:Adult; D002508:Cephalometry; D005260:Female; D063172:Genioplasty; D006801:Humans; D007564:Japan; D008437:Maxilla / Q000002:abnormalities* / Q000601:surgery*; D056948:Orthognathic Surgical Procedures; D010027:Osteotomy / Q000379:methods*; D019340:Osteotomy, Le Fort; D016896:Treatment Outcome
keywords: horseshoe osteotomy; maxillary excess; maxillary single-jaw surgery