A lower canal fill rate and unreestablished vertical femoral offset may increase the risk of the postoperative periprosthetic fractures after cementless bipolar hemiarthroplasty for femoral neck fractures in elderly patients

• Xiaoxiao Zhou ,

  Contributed equally to this work with: Xiaoxiao Zhou, Houlin Ji, Jiajun Wu

  Roles Project administration, Resources, Writing – review & editing

  Affiliation Department of Orthopedics, Shanghai University of Medicine & Health Sciences Affiliated Zhoupu Hospital, Shanghai, China

  https://orcid.org/0000-0002-6123-9600

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• Houlin Ji ,

  Contributed equally to this work with: Xiaoxiao Zhou, Houlin Ji, Jiajun Wu

  Roles Data curation, Formal analysis, Writing – original draft, Writing – review & editing

  Affiliation Jinji Lake Community Health Service Center of Suzhou Industrial Park, 215000, Jiangsu, China

  ⨯
• Jiajun Wu ,

  Contributed equally to this work with: Xiaoxiao Zhou, Houlin Ji, Jiajun Wu

  Roles Data curation, Formal analysis, Funding acquisition

  Affiliation Department of Orthopedics, Shanghai University of Medicine & Health Sciences Affiliated Zhoupu Hospital, Shanghai, China

  ⨯
• Haixiao Chen,

  Roles Methodology, Writing – review & editing

  Affiliation Department of Orthopedics, Taizhou Hospital of Zhejiang Province, Affiliated to Wenzhou Medical University, Zhejiang, China

  ⨯
• Yang Yang

  Roles Funding acquisition, Writing – original draft, Writing – review & editing

  * E-mail: yanglaoss@163.com

  Affiliation Department of Orthopedics, Taizhou Hospital of Zhejiang Province, Affiliated to Wenzhou Medical University, Zhejiang, China

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