Fracture healing in a rat osteopenia model. 1997

W R Walsh, and P Sherman, and C R Howlett, and D H Sonnabend, and M G Ehrlich
Orthopaedic Research Laboratories, Prince of Wales Hospital, Sydney, Australia.

Fracture healing is influenced by mechanical and biologic factors. The capacity for fracture repair has been reported to decrease with age, although the risk of fracture increases with age. Fracture healing in an animal model of postmenopausal osteoporosis or osteopenia would provide a useful technique to evaluate and develop new treatment protocols. The authors examined the tensile and bending properties of healing femoral fractures in normal and ovariectomized rats. Mechanical data from tensile and bending tests indicate ovariectomy impairs fracture healing, which was confirmed through histologic study. Bending and tensile data provide useful information concerning the mechanical properties of the healing fracture. Tensile tests were noted to be sensitive indicators of the properties of the healing fracture.

UI MeSH Term Description Entries
D010052 Ovariectomy The surgical removal of one or both ovaries. Castration, Female,Oophorectomy,Bilateral Ovariectomy,Bilateral Ovariectomies,Castrations, Female,Female Castration,Female Castrations,Oophorectomies,Ovariectomies,Ovariectomies, Bilateral,Ovariectomy, Bilateral
D011919 Rats, Inbred Strains Genetically identical individuals developed from brother and sister matings which have been carried out for twenty or more generations or by parent x offspring matings carried out with certain restrictions. This also includes animals with a long history of closed colony breeding. August Rats,Inbred Rat Strains,Inbred Strain of Rat,Inbred Strain of Rats,Inbred Strains of Rats,Rat, Inbred Strain,August Rat,Inbred Rat Strain,Inbred Strain Rat,Inbred Strain Rats,Inbred Strains Rat,Inbred Strains Rats,Rat Inbred Strain,Rat Inbred Strains,Rat Strain, Inbred,Rat Strains, Inbred,Rat, August,Rat, Inbred Strains,Rats Inbred Strain,Rats Inbred Strains,Rats, August,Rats, Inbred Strain,Strain Rat, Inbred,Strain Rats, Inbred,Strain, Inbred Rat,Strains, Inbred Rat
D001851 Bone Diseases, Metabolic Diseases that affect the METABOLIC PROCESSES of BONE TISSUE. Low Bone Density,Low Bone Mineral Density,Osteopenia,Metabolic Bone Diseases,Bone Density, Low,Bone Disease, Metabolic,Low Bone Densities,Metabolic Bone Disease,Osteopenias
D002146 Bony Callus The bony deposit formed between and around the broken ends of BONE FRACTURES during normal healing. Callus,Callus, Bony
D004548 Elasticity Resistance and recovery from distortion of shape.
D005260 Female Females
D005264 Femoral Fractures Fractures of the femur. Femoral Fracture,Fracture, Femoral,Fractures, Femoral
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D013718 Tensile Strength The maximum stress a material subjected to a stretching load can withstand without tearing. (McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed, p2001) Strength, Tensile,Strengths, Tensile,Tensile Strengths

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