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Related Experiment Videos

Sustained bone mineral density changes after burn injury.

Linda S Edelman1, Teresa McNaught, Gary M Chan

  • 1Department of Surgery, University of Utah Health Sciences Center, Salt Lake City, Utah 84132, USA. linda.edelman@hsc.utah.edu

The Journal of Surgical Research
|October 16, 2003
PubMed
Summary

Bone mineral density (BMD) significantly decreases after burn injury, with the most substantial changes occurring months post-discharge. Long-term musculoskeletal assessments are crucial for burn survivors.

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Area of Science:

  • Biomedical research
  • Metabolic changes post-injury
  • Musculoskeletal health

Background:

  • Burn injuries are associated with significant body composition alterations.
  • Previous studies indicate reduced bone mineral density (BMD) in burn patients compared to healthy individuals.
  • The temporal dynamics of these body composition changes remain poorly understood.

Purpose of the Study:

  • To characterize the longitudinal changes in body composition following burn injury.
  • To determine the timing and severity of bone mineral density (BMD) alterations.
  • To investigate the relationship between body composition changes and burn severity.

Main Methods:

  • A cohort of 29 burn patients was studied.
  • Portable dual-energy X-ray absorptiometry (pDEXA) was used to measure forearm bone mineral density (BMD), fat mass, and lean mass.

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  • Measurements were taken serially from admission up to two years post-injury.

    • Main Results:

    • While lean and fat mass showed no significant changes, bone mineral density (BMD) decreased significantly post-burn.
    • The peak decrease in BMD occurred approximately 131 days after the burn injury, not during hospitalization.
    • Post-burn BMD changes were inversely correlated with the percentage of total body surface area (TBSA) and third-degree TBSA affected.

    Conclusions:

    • This study confirms that burn injuries negatively impact BMD, with the most pronounced effects observed after hospital discharge.
    • The findings underscore the necessity for long-term musculoskeletal monitoring in burn survivors.
    • Further research is warranted to explore the underlying mechanisms driving these post-burn body composition alterations.