The prevalence and risk factors of acute kidney injury in post-orthopedic surgery patients - Summary - MDSpire

The prevalence and risk factors of acute kidney injury in post-orthopedic surgery patients

  • By

  • Wen Li

  • Chenfei Fu

  • Wenjing Fu

  • Aihua Zhang

  • June 29, 2026

  • 0 min

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Objective:

To investigate the prevalence and identify the risk factors associated with acute kidney injury (AKI) in patients undergoing orthopedic surgery.

Approach:
  • Study Design: A retrospective study was conducted on 2,796 patients admitted to the orthopedic ward for bone tumors, bone injuries, and spinal diseases between 2017 and 2020.
  • Data Analysis: Data were analyzed using chi-square, Fisher’s exact, Kruskal-Wallis tests, and logistic regression to compare groups and determine independent risk factors for AKI.
Key Findings:
  • AKI occurred in 97 patients, yielding an overall prevalence of 3.47%.
  • The incidence was highest among patients undergoing bone tumor surgery (11.36%) and lowest in those undergoing spinal surgery (2.46%).
  • Patients in the AKI stage 3 group had a significantly higher proportion of bone tumor surgeries and longer hospital stays compared to other groups (P < 0.001).
  • Independent risk factors for AKI identified were bone tumor surgery, preoperative proteinuria, elevated urea, decreased hemoglobin, and the use of proton pump inhibitors (PPIs) and non-steroidal anti-inflammatory drugs (NSAIDs).
Interpretation:

There is a significant risk of AKI following orthopedic surgery, particularly in patients undergoing bone tumor procedures, with several key modifiable risk factors identified.

Limitations:
  • The study is retrospective in nature, which may introduce biases.
  • Patient information was anonymized, limiting the ability to follow up on long-term outcomes.
Conclusion:

The study highlights the prevalence of AKI in orthopedic surgery patients and identifies modifiable risk factors.

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