Bone fracture and bone fracture repair
Date
2011
Authors
Fazzalari, N.
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Conference paper
Citation
Osteoporosis International, 2011, vol.22, iss.6, pp.2003-2006
Statement of Responsibility
N. L. Fazzalari
Conference Name
Bone Quality Seminars : Osteoporosis International)
Abstract
Fracture healing is a multistage repair process that involves complex, well-orchestrated steps initiated in response to tissue injury. The early upregulation of IL-6, osteoprotegerin (OPG), VEGF, and BMPs indicates a central role for these factors in the initiation of cartilage and periosteal woven bone formation. In both callus fracture repair and stress fracture repair, the RANKL/OPG ratio is initially reduced, but peaks earlier in stress fracture healing than callus fracture healing. Though the understanding of the biological processes and molecular signals that coordinate fracture repair has advanced, the cause of variability observed in fracture repair is poorly understood.
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© International Osteoporosis Foundation and National Osteoporosis Foundation 2011