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Hypoalbuminemia is Highly Prevalent in Patients with Periprosthetic Joint Infection and Strongly Associated with

Zhi-Yuan Li1,2, Zhuo Li3,4, Chi Xu2,5

  • 1Medical School of Chinese PLA, Beijing, China.

Orthopaedic Surgery
|July 26, 2024
PubMed
Abstract

Insights

Hypoalbuminemia affects one in five patients with chronic periprosthetic joint infection (PJI). This low albumin level, particularly when persistent, significantly increases the risk of treatment failure in PJI patients.

Area of Science:

  • Orthopedic Surgery
  • Infectious Diseases
  • Clinical Nutrition

Background:

  • Chronic periprosthetic joint infection (PJI) poses significant challenges in orthopedic surgery.
  • The role of hypoalbuminemia (low albumin levels) in PJI patients is not well understood.
  • Understanding hypoalbuminemia's impact is crucial for improving PJI treatment outcomes.

Purpose of the Study:

  • To determine the prevalence and risk factors of hypoalbuminemia in chronic PJI patients.
  • To investigate the association between hypoalbuminemia and treatment outcomes after two-stage exchange arthroplasty.
  • To analyze the impact of dynamic changes in albumin levels during treatment.

Main Methods:

  • Retrospective cohort study of 387 PJI patients undergoing two-stage exchange arthroplasty.
  • Analysis of 342 reimplanted cases with a mean follow-up of 7.9 years.
  • Multivariate logistic regression to identify risk factors and assess treatment outcome associations.

Main Results:

  • Prevalence of hypoalbuminemia was 22.2% at 1st-stage and 4.7% at 2nd-stage exchange.
  • Risk factors included advanced age (≥68 years) and infection with Staphylococcus aureus, Streptococcus, or Gram-negative bacteria.
  • Hypoalbuminemia at 1st-stage increased treatment failure risk (OR=3.3), rising to OR=10.0 at 2nd-stage. Persistent hypoalbuminemia showed a 55.6% failure rate.

Conclusions:

  • Approximately 20% of chronic PJI patients experience hypoalbuminemia.
  • Advanced age and specific virulent organisms are associated with higher hypoalbuminemia risk.
  • Hypoalbuminemia is closely linked to poorer treatment outcomes in PJI, emphasizing its clinical significance.
Keywords:
Hypoalbuminemiaperiprosthetic joint infectionrisk factorstreatment outcomes

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