TY - JOUR
T1 - Maxillary single-jaw surgery combining Le Fort I and modified horseshoe osteotomies for the correction of maxillary excess
AU - Tominaga, K.
AU - Habu, M.
AU - Iwanaga, K.
AU - Kodama, M.
AU - Tsurushima, H.
AU - Kokuryo, S.
AU - Miyamoto, I.
AU - Fukudome, Y.
AU - Yoshioka, I.
N1 - Publisher Copyright:
© 2015 International Association of Oral and Maxillofacial Surgeons
PY - 2016/2/1
Y1 - 2016/2/1
N2 - 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 5.0 mm posteriorly and 7.0 mm superiorly at point A. The mandible autorotated anterosuperiorly to achieve sound occlusion. Point B moved 2.0–10.0 mm anteriorly and 5.0–10.0 mm superiorly. The pogonion moved 7.0–17.0 mm 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.
AB - 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 5.0 mm posteriorly and 7.0 mm superiorly at point A. The mandible autorotated anterosuperiorly to achieve sound occlusion. Point B moved 2.0–10.0 mm anteriorly and 5.0–10.0 mm superiorly. The pogonion moved 7.0–17.0 mm 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.
KW - horseshoe osteotomy
KW - maxillary excess
KW - maxillary single-jaw surgery
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U2 - 10.1016/j.ijom.2015.10.020
DO - 10.1016/j.ijom.2015.10.020
M3 - Article
C2 - 26599693
AN - SCOPUS:84964990190
VL - 45
SP - 194
EP - 199
JO - International Journal of Oral and Maxillofacial Surgery
JF - International Journal of Oral and Maxillofacial Surgery
SN - 0901-5027
IS - 2
ER -