Abstract
Foi realizado estudo morfométrico de dez segmentos de coluna lombar de cadáveres adultos de ambos os sexo com a finalidade de estudar parâmetros relacionados com a morfometria dos pedículos da coluna lombar. Os pedículos foram seccionados transversalmente de ambos os lados na altura do seu menor diâmetro. As vértebras foram fotografadas e o estudo morfométrico foi realizado em aparelho Minimop, tendo sido avaliados bilateralmente: o formato do pedículo, o diâmetro, a espessura das paredes corticais, a área do pedículo, a área do osso cortical, a área de osso esponjoso, e a porcentagem de osso esponjoso e cortical do pedículo. O pedículo vertebral da coluna lombar apresenta forma oval, o diâmetro vertical é maior que o horizontal, a cortical medial é mais espessa, a área do pedículo aumenta no sentido crânio cauda, e a relação entre a área de osso cortical e esponjoso é constante em toda a extensão da coluna lombar.
Highlights
Vertebral pedicles have been extensively used as fixation site for implants on spine, especially at lumbar spine[1,2]
Vertebral pedicle use was disseminated by RoyCamille[4] and its acceptance is directly associated to the biomechanical advantages of pedicular fixation and to the potential to provide a three-dimensional correction of vertebral deformities with pedicular fixation systems[1,2]
The objective of this study is to report the results of a morphometric study of adult lumbar vertebrae’s pedicles, aimed to provide morphometric inputs for the use of this vertebral component in implants fixation or as an access port to vertebral body
Summary
Vertebral pedicles have been extensively used as fixation site for implants on spine, especially at lumbar spine[1,2]. Vertebral pedicle has been used as an access port for procedures performed inside the vertebral body, such as biopsies, vertebroplasties or kyphoplasties[2,3]. Vertebral pedicle use was disseminated by RoyCamille[4] and its acceptance is directly associated to the biomechanical advantages of pedicular fixation and to the potential to provide a three-dimensional correction of vertebral deformities with pedicular fixation systems[1,2]. The objective of this study is to report the results of a morphometric study of adult lumbar vertebrae’s pedicles, aimed to provide morphometric inputs for the use of this vertebral component in implants fixation or as an access port to vertebral body
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