Of the 89 pedicle screws of the concave side of group 2, eleven were not completely contained in the pedicle 12.3%, three medial and eight external, and they were all contained in the vertebral body.
De los 89 tornillos pediculares de la concavidad del grupo 2, once no estaban contenidos completamente en el pedículo 12.3%, tres mediales y ocho externos, y todos ellos estaban contenidos en el cuerpo vertebral.