臨床整形外科46巻1号

2011年01月発行

論述

Multiplanar reconstruction（MPR）-CTに基づく至適腰椎椎弓根スクリュー径選択

著者： 牧野孝洋¹ 海渡貴司¹ 藤原啓恭¹ 米延策雄¹

所属機関： ¹国立病院機構大阪南医療センター整形外科

ページ範囲：P.11 - P.16

　至適腰椎椎弓根スクリュー径決定の指標をmultiplanar reconstruction(MPR)-CTを用いて，冠状断椎弓根横径と椎弓根最短径を比較することで検討した．L1・L2では冠状断椎弓根横径と椎弓根最短径に有意差はなかったが，L3・L4・L5では椎弓根横径より椎弓根最短径は統計学的に有意に小さかった．冠状断椎弓根横径をx，椎弓根最短径(至適椎弓根スクリュー径)をyとすると，回帰式はL1・L2はy＝x，L3はy＝0.88x，L4はy＝0.76x，L5はy＝0.58xとして求められた．

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