Interbody device and plate for spinal stabilization and instruments for positioning same

摘要

Systems, methods and devices for providing stabilization between first and second vertebrae are provided. More particularly, in one form a system includes an implant configured to be positioned in a disc space between the first and second vertebrae and a freestanding plate for engagement with extradiscal surfaces of the first and second vertebrae. The system also includes an insertion instrument with an engaging portion configured to releasably engage with the implant and the plate such that the implant and plate can be positioned together relative to the first and second vertebrae. In one aspect, an angular orientation of the implant relative to the plate is adjustable when the implant and the plate are engaged by the instrument. In this or another aspect, the implant and plate are held in a contiguous relationship when engaged by the instrument. However, different forms and applications are also envisioned.

主权项

1. A method for providing spinal stabilization, comprising:
positioning a plate such that trajectories of a first pair of holes of the plate intersect a first vertebra and trajectories of a second pair of holes of the plate intersect an adjacent second vertebra; inserting a first pair bone screws through the first pair of holes and into the first vertebra; inserting a second pair bone screws through the second pair of holes and into the second vertebra; and rotating a retaining element of the plate comprising a plurality of arms separated by gaps from a first position in which the gaps are aligned with the holes to a second position in which the arms overlap the holes to prevent the bone screws from backing out of the holes, wherein inserting the bone screws into the vertebra secures the plate extradiscally such that no portion of the plate is positioned within a disc space defined by the vertebrae.