Association of ultrasound-assisted combined with conventional anatomical landmark paramedian spinal anesthesia and its impact on first pass success rate in patients with lower limb fractures- A retrospective cohort study

• Congli Tian ,

  Contributed equally to this work with: Congli Tian, Jing Xue, Huiyan Cui

  Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Project administration, Software, Visualization, Writing – review & editing

  Affiliation Department of Anesthesia and Surgery, Zhengning County People’s Hospital, Qingyang, Gansu Province, China

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• Jing Xue ,

  Contributed equally to this work with: Congli Tian, Jing Xue, Huiyan Cui

  Roles Conceptualization, Data curation, Investigation, Resources, Supervision

  Affiliation Department of Anesthesiology, Qingyang People’s Hospital, Qingyang, Gansu Province, China

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• Huiyan Cui ,

  Contributed equally to this work with: Congli Tian, Jing Xue, Huiyan Cui

  Roles Investigation, Methodology, Resources, Supervision, Validation

  Affiliation Department of Anesthesia and Surgery, Zibo City Centre Hospital, Zibo, Shandong Province, China

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• Hongni Ding

  Roles Conceptualization, Data curation, Investigation, Resources, Software, Supervision, Visualization, Writing – original draft

  * E-mail: dhn20172019@163.com

  Affiliation Anesthesia and Surgicai Department, Qingyang People’s Hospital, Qingyang, Gansu Province, China

  https://orcid.org/0009-0001-5173-2768

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