臨床整形外科51巻7号

2016年07月発行

臨床経験

橈骨遠位端骨折用掌側ロッキングプレートシステムの折損—その原因は？

著者： 川西洋平¹ 中井毅¹

所属機関： ¹市立伊丹病院整形外科

ページ範囲：P.657 - P.664

背景：橈骨遠位端骨折用掌側ロッキングプレートシステムのインプラント折損は稀であり，その原因は明らかでない．

対象と方法：われわれの経験した折損3手を非折損群37手と比較し，その原因を後ろ向きに調査した．

結果：骨質不良に関連する既往歴と術後の整復位損失が，インプラント折損と関連していた．遠位ロッキング螺子が茎状突起へ刺入されていないこととプレート遠位部の2mm以上の浮きが，遠位ロッキング螺子の折損と関連していた．

まとめ：折損の予防には，十分な角度安定性が得られる適当な設置・固定を行う必要があると考えられた．

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