術前関節裂隙はスプリント固定レ・フォールI型骨切り術の精度に影響するか?
M D Han1, A Tavasoli2, R Malaki3
1Department of Oral and Maxillofacial Surgery, University of Illinois Chicago College of Dentistry, Chicago, IL, USA.
International journal of oral and maxillofacial surgery
|January 31, 2026
まとめ
術前の関節裂隙(JS)の変動は、スプリント固定レ・フォールI型骨切り術(LFI)の精度に影響する。上部および後部のJSが大きいほど、特定の術野誤差と相関があり、レ・フォールI型骨切り術における術前の評価の必要性が強調される。
科学分野:
- 口腔外科学; 顎矯正手術; 手術精度
背景:
- スプリント固定によるレ・フォールI型骨切り術(LFI)の精度は、顆頭窩関係の影響を受ける可能性がある。; 術前関節裂隙(JS)の影響を理解することは、術野成績の最適化に不可欠である。
研究 の 目的:
- スプリント固定による上顎先行レ・フォールI型骨切り術(LFI)における術野誤差に対する術前関節裂隙(JS)の影響を調査する。; JS測定と術野不正確さの関係を定量化する。
主な方法:
- スプリント固定による上顎先行LFIを受けた患者の後向き解析。; 術前のJSは、コーンビームCT(CBCT)を用いて測定した。; 術野移動(線形および角度)は、ボクセルベースレジストレーションを用いて評価した。
主要な成果:
- 平均線形誤差および角度誤差はそれぞれ0.82-1.18 mmおよび0.87-1.21°であった。; 上部関節裂隙はmedio-lateral誤差と相関があった(P=0.020)。後部関節裂隙はanteroposterior誤差と相関があった(P=0.019)。; 回帰モデルにより、術野誤差を予測する特定の関節裂隙値が同定された。
結論:
- 術前の垂直およびanteroposterior関節裂隙は、上顎先行スプリント固定LFIの精度に大きく影響する。; 術前のJS評価により、術野誤差のリスクが高い患者を特定できる。; 術野精度の向上のため、術前の関節裂隙のルーチン評価が推奨される。
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