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Risk factors of mortality and second fracture after elderly hip fracture surgery in Shanghai, China

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Abstract

Introduction

Hip fracture is one of the leading causes of death and disability in the elderly. We analyzed the risk factors of mortality and second fracture within 2 years after hip fracture surgery in elderly Chinese patients.

Materials and methods

A total of 613 elderly patients after hip fracture surgery were selected, including 181 males and 432 females, and the patients were followed for at least 24 months. Information about patients and surgery was collected from medical records. Information on death, secondary fracture, and postoperative activities of daily living (ADL) was obtained by telephone follow-up. Cox regression was performed to identify risk factors associated with mortality and second fracture, measured by hazard ratio (HR).

Results

The 1-year and 2-year mortality rates after hip fracture were 13.4% and 20.7%, respectively. The second fracture rate within 2 years was 9.5%. Male gender (HR 1.51, P = 0.035), increased age (HR 1.07, P < 0.001), preoperative hypoalbuminemia (HR 1.79, P = 0.004), preoperative pneumonia (HR 2.60, P = 0.005) and poor ADL (P = 0.048) were independent risk factors for 2-year mortality, while high preoperative hemoglobin (HR 0.98, P = 0.002), high preoperative eGFR (HR 0.99, P = 0.031), high preoperative LVEF (HR 0.92, P = 0.048) were protective factors for 2-year mortality. Poor ADL (P = 0.002) was the independent risk factor for second fracture within 2 years.

Conclusions

The 2-year mortality rate and second fracture rate after hip fracture in elderly remained high, which was related to old age and complications exists. Postoperative rehabilitation and improving ADL were very important to reduce mortality and second fracture.

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Acknowledgements

We thank all participants in the study. We also thank the Department of Orthopedics, Huadong Hospital affiliated to Fudan University, for providing patient records.

Funding

This study was supported by the China National Key R&D Program (Nos. 2020YFC2009000 and 2020YFC2009001), the Shanghai Public Health System Construction Three-year Action Plan Project (GWV-9.4), and Shanghai Key Laboratory of Clinical Geriatric Medicine (13dz2260700).

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Authors and Affiliations

Authors

Contributions

MMC: contributed to the study design, performed data collect, data analysis, drafted the main manuscript, and provided final approval for submission; YPD, WJT, WJY and HLL: contributed to performed data collect, and provided final approval for submission; SBZ: contributed to the study design, and provided final approval for submission; QC: contributed to the study design, reviewed the manuscript critically for important intellectual content, and provided final approval.

Corresponding author

Correspondence to Qun Cheng.

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Conflict of interest

All authors declare that they have no conflict of interest.

Ethical approval

This study was approved by the Ethics Committee of Huadong Hospital, Fudan University (Ethics Number: 2019K168) in compliance with the Declaration of Helsinki, in which the patient data used were kept strictly confidential.

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Chen, M., Du, Y., Tang, W. et al. Risk factors of mortality and second fracture after elderly hip fracture surgery in Shanghai, China. J Bone Miner Metab 40, 951–959 (2022). https://doi.org/10.1007/s00774-022-01358-y

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  • DOI: https://doi.org/10.1007/s00774-022-01358-y

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