臨床整形外科46巻6号

2011年06月発行

臨床経験

重症手根管症候群に対する電気生理学的評価―手掌部刺激の有用性について

著者： 金谷貴子¹ 藤岡宏幸² 黒坂昌弘³ 鷲見正敏¹ 山崎京子¹

所属機関： ¹神戸労災病院整形外科 ²兵庫医科大学整形外科 ³神戸大学大学院医学研究科・外科系講座・整形外科学

ページ範囲：P.551 - P.555

　手掌部刺激による運動神経終末潜時(DML)(P-DML)導出を，母指球筋萎縮を呈し手関節刺激でDML，感覚神経伝導速度(SCV)が測定不能な重症手根管症候群に試みた．43手のうちP-DMLが測定可能であった42手は手根管開放術後1年で母指球筋萎縮は改善し，手関節刺激でDML40手，SCV22手が測定可能となった．一方，P-DMLが測定不能であった1手は術後の母指球筋萎縮は改善しなかった．重症手根管症候群では，ほとんどでP-DMLが測定可能で，術後の母指球筋萎縮改善と電気生理学的回復がみられたことから，病態は脱髄主体と考えられた．

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