Long-Term Effects of Severe Burn Injury on Bone Turnover and Microarchitecture

Published on July 1, 2017 by Muschitz G, Schwabegger E, Fochtmann A, Baierl A, Kocijan R, Haschka J, Gruther W, Schanda J, Resch H, Rath T, Pietschmann P, Muschitz C

Key Takeaway

Severe burn injuries trigger long-term bone loss and microstructural deterioration that persist for up to 24 months, highlighting the need for early bone-protective strategies during rehabilitation.

Muschitz G., Schwabegger E., Fochtmann A., Baierl A., Kocijan R., Haschka J., Gruther W., Schanda J., Resch H., Rath T., Pietschmann P., Muschitz C.. (2017). Long-Term Effects of Severe Burn Injury on Bone Turnover and Microarchitecture. https://doi.org/10.1002/jbmr.3211

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What this study found

This prospective study tracked 32 male patients with severe burn injuries (median 40.5% total body surface area) over 24 months. Using high-resolution peripheral quantitative computed tomography (HR-pQCT), researchers observed a continuous decline in both trabecular and cortical bone microstructure, alongside increased cortical porosity. These structural changes correlated with sustained elevations in bone turnover markers, prolonged inflammatory cytokine activity, muscle catabolism, and vitamin D insufficiency.

Why it matters

For rehabilitation clinicians, these findings demonstrate that severe thermal injury triggers a prolonged hypermetabolic and catabolic state that directly compromises skeletal integrity. This systemic response significantly elevates the long-term risk of fragility fractures. To address this, rehabilitation protocols should integrate:

  • Early bone-health screening: Monitoring bone turnover markers and bone density during recovery.
  • Targeted nutritional support: Addressing vitamin D insufficiency and protein intake to counter muscle and bone catabolism.
  • Mechanical loading: Implementing progressive resistance training and early mobilization to preserve bone microarchitecture.

Clinicians should also consider the potential role of bone-protective pharmacological agents in patients at high risk for fractures.

Limitations

The study was limited to a relatively small cohort of male patients. Further research is needed to confirm these findings in female burn survivors and to evaluate the long-term efficacy of specific bone-protective interventions.

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