臨床整形外科55巻8号

2020年08月発行

論述

非接触型膝前十字靱帯損傷の下肢前額面アライメント

著者： 小関弘展¹ 米倉暁彦² 野口智恵子¹ 中添悠介²³ 砂川伸也¹ 松村海¹ 渡部果歩⁴ 水上諭⁵ 尾﨑誠²

所属機関： ¹長崎大学大学院医歯薬学総合研究科保健科学分野 ²長崎大学大学院医歯薬学総合研究科整形外科学 ³医療法人和仁会和仁会病院整形外科 ⁴長崎大学大学院医歯薬学総合研究科保健学専攻 ⁵長崎大学大学院医歯薬学総合研究科公衆衛生学分野

ページ範囲：P.933 - P.938

目的：非接触型前十字靱帯(anterior cruciate ligament：ACL)損傷の骨解剖学的リスク因子を抽出することである．

対象と方法：初回非接触型ACL損傷患者33例33膝(ACL群)と健常者26例26膝(対照群)の下肢荷重位X線像から下肢前額面アライメントと骨形態を計測した．

結果：ACL群では対照群よりも静的下肢アライメントが外反しており，脛骨近位内側角と大腿骨遠位外側角が影響していた．

まとめ：荷重位下肢アライメントが外反するほど膝関節への外反トルクが強くなるため，ACLに応力が集中して靱帯損傷に至る危険性が高くなると考えられる．

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