Devices and methods for correcting vertebral misalignment

摘要

Embodiments of devices and methods of correcting vertebral misalignment, including, e.g., spondylolisthesis, are disclosed. In one embodiment, a vertebral implant may include an assembly configured to be secured to a first vertebral body, wherein the assembly includes a frame made of a first material and at least one end plate made of a second material different than the first material; a reducing plate configured to be slidably received over the central portion, wherein the reducing plate is configured to be secured to a second vertebral body; and an actuator configured to move the reducing plate relative to the frame.

主权项

1. A vertebral implant, comprising:
an assembly configured to be secured to a first vertebral body, wherein the assembly includes a frame having a posterior end and an anterior end, the frame includes a central section, a right lateral section, and left lateral section, the central section includes a longitudinal member having a lumen, the longitudinal member extends from the posterior end to the anterior end of the frame; a reducing plate configured to be slidably received over the longitudinal member, wherein the reducing plate is configured to be secured to a second vertebral body; and an actuator configured to extend through an opening in the reducing plate and into the lumen of the longitudinal member, the actuator configured to move the reducing plate relative to the frame, wherein the central section, the right lateral section and the left lateral section are integrally formed, wherein the assembly includes a first endplate and a second endplate, the first endplate coupled to the left lateral section of the frame and the second endplate coupled to the right lateral section of the frame, wherein the frame includes an enlarged head portion configured to receive a fastener for securing the assembly to the first vertebral body, wherein the enlarged head portion is further configured to receive a fastener restricting mechanism for limiting longitudinal travel of the fastener, and wherein the fastener restricting mechanism includes a screw having a head portion including a cutout therein.