Posterior spinal fastener

摘要

A posterior spinal fastener is disclosed for insertion into a vertebra of a mammalian body, the vertebra having posterior elements and a vertebral body. The fastener includes an elongate member adapted for insertion into the vertebra. The elongate body has an anterior portion and a posterior portion. The anterior portion is arcuate in shape for placement in the vertebral body. The posterior portion has a length so as to be accessible at the posterior elements of the vertebra when the anterior portion is disposed in the vertebral body. A method of use of the posterior spinal fastener is also disclosed, in which the posterior spinal fastener is introduced into the vertebra at the posterior elements and arcuately extended into the vertebral body.

主权项

1. A posterior spinal fastener for securing to a single vertebra of a mammalian body having a vertebral body and posterior elements that include a pedicle and for use with a fastening member comprising an elongate member adapted for insertion into the vertebra, the elongate member having an anterior portion and a posterior portion, the anterior portion being arcuate in shape for placement in the vertebral body, the posterior portion being substantially straight and being sufficiently elongated to extend through the pedicle so as to permit placement of the anterior portion in the vertebral body, at least a portion of the posterior portion being externally threaded for securing the elongate member within the posterior elements when the anterior portion is disposed in the vertebral body and the posterior portion having a head accessible outside of the posterior elements when the anterior portion is disposed in the vertebral body for coupling to the fastening member.