RESUMO
Fracture of the capital femoral epiphysis occurred in three foals. One fracture was repaired by means of pinning under radiographic control and the two other fractures were repaired by means of trochanteric osteotomy.
Assuntos
Epífises/lesões , Fraturas do Fêmur/veterinária , Cabeça do Fêmur/lesões , Doenças dos Cavalos/cirurgia , Animais , Epífises/cirurgia , Feminino , Fraturas do Fêmur/cirurgia , Cavalos , Masculino , Métodos , Período Pós-OperatórioRESUMO
Following dorsal laminectomies (L2-L3), the resultant spinal instabilities were stabilized by placing four Steinmann pins and embedding them in acrylic bone cement. The cement was molded about the instability and incorporated the pins and articular process. Mechanical testing was performed to evaluate the strength of the resultant union between the two vertebrae. Three types of samples, in vivo, in vitro and normal were tested using a specially built apparatus. The results showed average maximum loads of 150, 180 and 180 Newtons respectively which represent 29, 42 and 37 MPa in calculated shear stresses. The results indicate that the use of bone cement with pins can stabilize the injured vertebral discs easily iwth the maximum load or shear strength equivalent to that of normal vertebral discs.
