Multidirectional in vivo strain analysis of the equine radius and tibia during dynamic loading with and without a cast. 1982

R K Schneider, and D W Milne, and A A Gabel, and J J Groom, and L R Bramlage

Rosette strain gauges were applied to the equine radius and tibia. Three sites were examined on each bone on separate occasions (proximal metaphysis, middiaphysis, and distal metaphysis). At each site, 4 rosette gauges were applied around the bone (ie, cranial, caudal, medial, and lateral). Strain recordings were made while walking the horse with and without a full-limb plaster cast. The principal axis of tensile strain was on the craniolateral aspect of the radius. Distally, on the radius, the largest strains were torsional. The cast changed the principal axis of tensile strain on the radius from the craniolateral surface to the caudal surface. The principal tensile strain of the tibia was just to the lateral side of cranial in the proximal and diaphyseal regions. Distally, the principal axis of tensile strain was craniolateral; however, the largest strains measured here were torsional. The cast changed the principal axis of tensile strain on the distal metaphysis of the tibia, but it did not reduce the magnitude of the strains measured. Casts may not aid stabilization of radial or tibial fractures repaired with internal fixation and may in fact place additional stress on the fracture site.

UI MeSH Term Description Entries
D011885 Radius Fractures Fractures of the RADIUS. Galeazzi Fracture,Galeazzi Fracture Dislocation,Radial Fractures,Dislocation, Galeazzi Fracture,Fracture Dislocation, Galeazzi,Fracture, Galeazzi,Fracture, Radial,Fracture, Radius,Radial Fracture,Radius Fracture
D001860 Bone Plates Implantable fracture fixation devices attached to bone fragments with screws to bridge the fracture gap and shield the fracture site from stress as bone heals. (UMDNS, 1999) Bone Plate,Plate, Bone,Plates, Bone
D002370 Casts, Surgical Dressings made of fiberglass, plastic, or bandage impregnated with plaster of paris used for immobilization of various parts of the body in cases of fractures, dislocations, and infected wounds. In comparison with plaster casts, casts made of fiberglass or plastic are lightweight, radiolucent, able to withstand moisture, and less rigid. Fiberglass Casts,Plaster Casts,Plastic Casts,Cast, Surgical,Surgical Cast,Surgical Casts,Cast, Fiberglass,Cast, Plaster,Cast, Plastic,Casts, Fiberglass,Casts, Plaster,Casts, Plastic,Fiberglass Cast,Plaster Cast,Plastic Cast
D005592 Fracture Fixation The use of metallic devices inserted into or through bone to hold a fracture in a set position and alignment while it heals. Skeletal Fixation,Fracture Reduction,Fixation, Fracture,Fixation, Skeletal,Fixations, Fracture,Fixations, Skeletal,Fracture Fixations,Fracture Reductions,Reduction, Fracture,Reductions, Fracture,Skeletal Fixations
D006734 Horse Diseases Diseases of domestic and wild horses of the species Equus caballus. Equine Diseases,Disease, Equine,Disease, Horse,Diseases, Equine,Diseases, Horse,Equine Disease,Horse Disease
D006736 Horses Large, hoofed mammals of the family EQUIDAE. Horses are active day and night with most of the day spent seeking and consuming food. Feeding peaks occur in the early morning and late afternoon, and there are several daily periods of rest. Equus caballus,Equus przewalskii,Horse, Domestic,Domestic Horse,Domestic Horses,Horse,Horses, Domestic
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
D001696 Biomechanical Phenomena The properties, processes, and behavior of biological systems under the action of mechanical forces. Biomechanics,Kinematics,Biomechanic Phenomena,Mechanobiological Phenomena,Biomechanic,Biomechanic Phenomenas,Phenomena, Biomechanic,Phenomena, Biomechanical,Phenomena, Mechanobiological,Phenomenas, Biomechanic
D013978 Tibial Fractures Fractures of the TIBIA. Segond Fracture,Tillaux Fracture,Toddler's Fracture,Fracture, Segond,Fracture, Tibial,Fracture, Tillaux,Fracture, Toddler's,Fractures, Tibial,Tibial Fracture,Toddler Fracture,Toddlers Fracture

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