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Related Experiment Videos

Bone disease in burn patients

G L Klein1, D N Herndon, T C Rutan

  • 1Department of Pediatrics, University of Texas Medical Branch, Galveston.

Journal of Bone and Mineral Research : the Official Journal of the American Society for Bone and Mineral Research
|March 1, 1993
PubMed
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Severe burn patients exhibit reduced bone turnover due to aluminum exposure and immobilization. This bone disease impacts bone formation and mineral apposition rates, affecting recovery and growth.

Area of Science:

  • Orthopedics
  • Burn Medicine
  • Endocrinology

Background:

  • Burn patients face bone disease risks from aluminum (Al) exposure, immobilization, and corticosteroids.
  • Severely burned children experience impaired growth for up to three years post-burn.

Purpose of the Study:

  • To investigate the extent of bone disease in adult burn patients with extensive burns.
  • To assess the impact of aluminum exposure and immobility on bone turnover in burn survivors.

Main Methods:

  • Bone biopsies (iliac crest) with tetracycline labeling were performed on nine men and three women (age 18-41) with >50% body surface area burns.
  • Serial serum and urine samples were collected weekly.
  • Quantitative analysis of bone aluminum and assessment of bone formation markers were conducted.

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Main Results:

  • Biopsied patients showed reduced bone formation, osteoid area/surface/width, and mineral apposition rate compared to healthy controls.
  • Burn patients exhibited lower bone formation, mineral apposition rate, and osteoid parameters than short-term bed rest volunteers.
  • Elevated aluminum levels were found in all patients; urine aluminum correlated inversely with serum osteocalcin. Bone aluminum was detectable in 60%.

Conclusions:

  • Burn patients demonstrate markedly reduced bone turnover, suggesting significant bone disease.
  • Etiologic factors likely include aluminum loading, partial immobilization, endogenous corticosteroids, and cytokine production.
  • These findings highlight the complex pathophysiology of bone disease in severe burn survivors.