Le Fort Ⅲ型＋眼窩縁骨切り術後の骨延長によって前頭蓋底に小欠損と前頭葉の嵌入を生じた１例

草場 啓彰; 坂田 憲亮; 右田 尚; 守永 圭吾; 力丸 英明; 清川 兼輔

doi:10.32154/jjscmfs.40.3_107

Case Report

A Case of Anterior Cranial Base Defect with Frontal Lobe Herniation Following Le Fort Ⅲ+ Orbital Rim Distraction

Hiroaki KUSABA, Kensuke SAKATA, Hisashi MIGITA, Keigo MORINAGA, Hideaki RIKIMARU, Kensuke KIYOKAWA

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Keywords: anterior skull base, Le Fort Ⅲ osteotomy, frontal musculo-pericranial flap, temporal musculo-pericranial flap

JOURNAL RESTRICTED ACCESS

2024 Volume 40 Issue 3 Pages 107-114

DOI https://doi.org/10.32154/jjscmfs.40.3_107

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Abstract

　　To date, there have been no reports of cases in which bone lengthening after Le Fort Ⅲ or Ⅳ osteotomies has caused defects involving the anterior skull base.
　　We performed Le Fort type Ⅲ + orbital rim osteotomy for bone lengthening to improve inferior maxillary growth and eyeball protrusion in a patient with Crouzon syndrome.
　　About three years later, the patient developed the serious complication of meningitis.
　　The cause was considered to be a defect in the anterior cranial floor due to extension of part of the anterior cranial floor during bone lengthening after Le Fort type Ⅲ osteotomy.

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