Laminoplasty fixation system
AssigneeRohit K. Khanna
InventorRohit Kumar Khanna
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Abstract
Fixation devices for stabilization and fusion of the lamina after laminoplasty are described. The device comprises of a plate with several holes that receive bone fasteners. The plate is curved at the ends to contour to the vertebral structure and has a spacer in the middle to engage the displaced lamina in a fixed position. Several fixation devices for dynamically stabilizing the lamina after either the open door, double door or expansive laminoplasty technique are provided.
Claims26
Bone fixation device for the lamina of the spine after laminoplasty comprising of:
- i) an elongated plate defining a longitudinal axis with curvature at the ends, downward for fixation to a lamina and upward for fixation to a facet by means of a screw through bone screw receiving holes at each end of the said plate, and ii) a rectangular shaped spacer in the middle of the plate with ends which are able to engage and maintain the displaced edges of a lamina in a fixed position.
Bone fixation device for the lamina of the spine after laminoplasty comprising of:
- i) an elongated plate defining a longitudinal axis with bone screw receiving holes at the ends wherein said plate has a U-shape to allow for fixation to the lamina via screws, and ii) a spacer in the middle of the plate which is able to engage and maintain the displaced edges of two-lamina in a fixed position.
Bone fixation device for the lamina of the spine after laminoplasty comprising of:
- i) an elongated plate defining a longitudinal axis with bone screw receiving holes at the ends wherein said plate has a U-shape in the middle and an inverse L-shaped curvature at the ends on both sides to allow for fixation to the facets via screws, and ii) a spacer in the middle of the plate which engages and maintains the displaced edges of a lamina in a fixed position.
Dependencies are inferred from the claim text.