Le Fort I osteotomy with sparing fracture of lateral pterygoid plate

The Journal of Craniofacial Surgery
K HwangS I Lee

Abstract

This study aimed to clarify the relation between the anatomical variations of the pterygomaxillary region and fracture of the pterygoid plate during Le Fort I osteotomy. We present a secure method to separate maxillary tuberosities from pterygoid plates without injuring the pterygoid plates. Thirty specimens of hemisection of Korean skulls were used for the study. The maxilla was sectioned transversely on the floor of the pyriform aperture and posteriorly to the lateral pterygoid plate with a mechanical saw. The section was 5 to 6 mm above the tooth roots. The pterygomaxillary junction was separated with a curved osteotome in two steps: initially with light tapping of the shallow groove 2 to 3 mm anterior to the pterygomaxillary fissure at a half right angle and then changing the course of forceful tapping to more than 60 degrees. The maxillary tuberosity separated from the medial and lateral pterygoid plates during the procedure was grouped into the "disjunction group" (24 of 30, 80%) and the pterygoid plates fractured were grouped into the "fracture group" (6 of 30, 20%). The thickness of the pterygomaxillary region (T) was significantly greater in the disjunction group than in the fracture group (P = 0.034). The concavity of...Continue Reading

References

Jun 1, 1986·The British Journal of Oral & Maxillofacial Surgery·P P Robinson, C W Hendy
Dec 1, 1973·Journal of Maxillofacial Surgery·O M Wikkeling, J Koppendraaier
Aug 1, 1983·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·L D TrimbleP J Stoelinga

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Citations

Apr 19, 2011·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·Seung-Hun LeeTae-Geon Kwon
May 12, 2009·Journal of Cranio-maxillo-facial Surgery : Official Publication of the European Association for Cranio-Maxillo-Facial Surgery·Koichiro UekiEtsuhide Yamamoto
Mar 24, 2009·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·Koichiro UekiEtsuhide Yamamoto
Sep 16, 2005·The British Journal of Oral & Maxillofacial Surgery·Barry O'Regan, Girish Bharadwaj
Sep 4, 2012·Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology·Teruyuki KanazawaKazuo Shimozato
Jun 24, 2020·Journal of Stomatology, Oral and Maxillofacial Surgery·O OdabaşıO Şahin

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