title: Quantitative microradiography of cortical bone in disuse osteoporosis following fracture fixation.
abstract: Stainless steel (elastic modulus 210 GN/m2) and carbon fibre reinforced epoxy resin (elastic modulus 65 GN/m2) plates have been attached to intact femora in cats and the development of disuse osteoporosis assessed by microdensitometric methods after 8 months. The bone adjacent to the stainless steel plate showed evidence of considerable demineralization, both uniformly throughout a section and especially at certain focal points. A noticeable, but much smaller amount of osteoporosis developed adjacent to the composite plate. Various methods of presenting quantitative micro-densitometric data are used.
mesh_terms: D000818:Animals; D001860:Bone Plates / Q000009:adverse effects*; D002244:Carbon; D002415:Cats; D004853:Epoxy Resins; D005593:Fracture Fixation, Internal / Q000009:adverse effects*; D008852:Microradiography; D010024:Osteoporosis / Q000000981:diagnostic imaging / Q000209:etiology*; D013193:Stainless Steel
chemical_list: D004853:Epoxy Resins; D013193:Stainless Steel; D002244:Carbon