臨床整形外科53巻2号

2018年02月発行

論述

Bi-cruciate stabilized型人工膝関節において脛骨コンポーネントの内旋設置は膝蓋大腿関節圧を上昇させる：in vivo解析

著者： 豊田真也¹ 金子卓男¹ 河野紀彦¹ 望月雄大¹ 羽田勝¹ 川原佳祐¹ 池上博泰¹ 武者芳朗¹

所属機関： ¹東邦大学医学部整形外科学講座(大橋)

ページ範囲：P.145 - P.149

背景：Bi-cruciate stabilized型人工関節全置換術(以下，TKA)における脛骨コンポーネントの回旋角度と術中膝蓋大腿関節(patellofemoral joint：PF)圧の関連を検討した．

対象と方法：内反型変形性膝関節症に対してbi-cruciate stabilized(BCS)型TKA(JourneyⅡBCS)を使用した22例22膝を対象とした．PF圧は膝蓋骨コンポーネントと同形状に作製したセンサーで測定し，コンポーネント設置角度は3DテンプレートソフトであるZedKneeで測定した．

結果：脛骨コンポーネントの内旋角度と最大PF圧との間には正の相関(r＝0.51，p＝0.02)を認めた．

まとめ：脛骨コンポーネントの過度の内旋はPF圧を上昇させる傾向があるため避けるべきである．

参考文献

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