スカプーラおよびグレノイドベースの座標系をISBの勧告に変換するための平均回転マトリックス
Florent Moissenet1, Benjamin Michaud2, Pierre Puchaud3
1Kinesiology Laboratory, Geneva University Hospitals and University of Geneva, Geneva, Switzerland; Biomechanics and Translational Research in Surgery, Department of Surgery, University of Geneva, Geneva, Switzerland.
Journal of biomechanics
|February 21, 2026
まとめ
肩のバイオメカニクスのデータを調和させることは極めて重要です. 新しい平均回転行列は,様々なスカプル局所座標系 (LCS) の間の不一致を効果的に軽減し,データの相互運用性を改善します.
科学分野:
- バイオメカニクス バイオメカニクス
- 整形外科 整形外科 整形外科
- 人間 運動 科学 科学 科学
背景:
- 骨に埋め込まれた局所座標系 (LCS) の定義は,肩の生体力学の研究に不可欠です.
- LCSの複数のスケープラー定義は,データ比較と相互運用性を妨げます.
- 既存の国際生体力学会 (ISB) の勧告は普遍的に採用されているわけではない.
研究 の 目的:
- 平均回転マトリックスの使用を11の一般的なスカプーラLCSに拡張する.
- これらのLCS間の幾何学的変換を定量化するために.
- スカプラー骨動力学的データを調和させるための信頼性の高い方法を提供する.
主な方法:
- 80人の参加者からの統計的形状モデルによって,1000本の肩骨が生成されました.
- 11のスカプラーLCSとISBが推奨するLCSの間の計算された平均回転マトリックス.
- 螺旋の角度を用いて精度を評価した.
主要な成果:
- 平均回転行列は,LCS間の最大不一致を21.9°から5.2°に大幅に削減しました.
- スカプラベースのLCSは,グレノイドベースのシステムよりも低い不一致を示しました.
- 結果は,データセットと集団全体にわたる強度を示し,以前の研究と比較して最小の差異 (<3°) を示した.
結論:
- 平均回転行列は,スカプラー運動データを調和させるための信頼できる枠組みを提供します.
- このアプローチは,肩のバイオメカニクスにおけるデータ融合と相互運用性を強化します.
- 異なるLCS定義を用いた研究における一貫した分析を容易にする.
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