後立三角における脊髄付属神経の表面ベースの局所化:臨床的に適用可能な危険地帯を定義する高容量の死体研究
Thomas Rappl1,2, Tadej Voljc2, Roman Ruschitzka3,4
1Research Unit for Responsible Aesthetics, Division of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University of Graz, Austria.
Plastic and reconstructive surgery
|February 12, 2026
まとめ
この研究は,触覚的なランドマークを使用して脊髄補助神経 (SAN) の位置を特定するための表面ベースの"危険地帯"を定義しています. この解剖学的モデルは,神経の識別を助けることで,首の手術における外科的安全性を高めています.
科学分野:
- アナトミー アナトミー
- 外科ナビゲーション
背景:
- 脊髄補助神経 (SAN) は,頭頸部手術,特に後部頸部三角形での損傷に対して脆弱です.
- 表面ベースのSANのローカライゼーションのための現在の方法は,美学的でアクセスが制限された手順では不十分です.
研究 の 目的:
- 脊髄付属神経の局所化のための信頼性の高い表面ベースの解剖学的ランドマークを確立するために.
- 後部頸椎三角における手術の安全性を高めるために,再現可能な"危険地帯"を定義する.
主な方法:
- ティールで埋葬された111人の死体から採取された186本のヘミネックを含む死体に関する研究.
- SANの出現点と4つの骨格のランドマークの間の距離の測定:マストイドプロセス,スターノクラビキュラー関節,ミッドクラビキュラーポイント,アクロミオクラビキュラー関節.
- 解剖学的関係と標準偏差に基づく"危険地帯"の数学的な定義.
主要な成果:
- 脊髄付属神経は,すべての解剖で一貫して特定されました.
- 神経から地標までの平均距離は,マストオイド・プロセス (5.1cm),スターノ・クラビキュラー・ジョイント (11.0cm),ミッド・クラビキュラー・ポイント (9.1cm),アクロミオ・クラビキュラー・ジョイント (12.8cm) です.
- 平均直径2.96cm (面積6.9cm2) の円形の危険地帯を計算し,直径1.98cm (3.1cm2) の精密なゾーンをマストイド工法で定義した.
結論:
- 頸椎後部三角におけるSANの局所化のために,臨床的に関連し,再現可能な表面ベースの危険地帯が定義されています.
- このモデルは,触覚可能な骨格のランドマークに固定され,大規模なデータセットで検証され,外科の安全性を向上させます.
- 提案された方法は,腫瘍学的および美学的な首の手続きにおいて極めて重要な先制神経の識別を容易にする.
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