Published in:
01-12-2017 | Orthopedic Management of Fractures (S Bukata and L Gerstenfeld, Section Editors)
Effects of Aging on Fracture Healing
Authors:
Dan Clark, Mary Nakamura, Ted Miclau, Ralph Marcucio
Published in:
Current Osteoporosis Reports
|
Issue 6/2017
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Abstract
Purpose of Review
This review summarizes research on the physiological changes that occur with aging and the resulting effects on fracture healing.
Recent Findings
Aging affects the inflammatory response during fracture healing through senescence of the immune response and increased systemic pro-inflammatory status. Important cells of the inflammatory response, macrophages, T cells, mesenchymal stem cells, have demonstrated intrinsic age-related changes that could impact fracture healing. Additionally, vascularization and angiogenesis are impaired in fracture healing of the elderly. Finally, osteochondral cells and their progenitors demonstrate decreased activity and quantity within the callus.
Summary
Age-related changes affect many of the biologic processes involved in fracture healing. However, the contributions of such changes do not fully explain the poorer healing outcomes and increased morbidity reported in elderly patients. Future research should address this gap in understanding in order to provide improved and more directed treatment options for the elderly population.