Fig. 2From: The ‘diamond concept’ for long bone non-union management(Adapted from Walters et al. [34] used with permission)Diagrammatic representation of fracture haematoma composition. Key: IL interleukin, MCP monocyte chemoattractive protein, M-CSF monocyte colony-stimulating factor, BMP bone morphogenic protein, PDGF platelet-derived growth factor, VEGF vascular endothelial growth factor, RANKL receptor activator of nuclear factor kappa-B ligand, OPG osteoprotegerin, SOST sclerostinBack to article page