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US 2006/0217807 A1Published application
Spinal device including lateral approach
AssigneeWarsaw Orthopedic, Inc.
InventorsMarc Peterman, Frank Bono
Life of this patent
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Abstract
Embodiments of the invention include devices and methods for implanting a vertebral body spacer. A lateral surgical approach is contemplated with some disclosed procedures. Instruments of some embodiments are insertable into a disc space to achieve distraction, to determine a desired disc space height, and to select a corresponding implant.
Claims26
An implant with an elongated body positionable in a spinal disc space comprising:
- a convexly curved upper surface orientable toward an endplate of an upper vertebra;
- a convexly curved lower surface orientable toward an endplate of a lower vertebra;
- a leading end portion and an opposite trailing end portion;
- an at least partially convexly curved anterior sidewall extending between the leading end portion and the trailing end portion;
- and
- a posterior sidewall extending between the leading end portion and the trailing end portion;
- wherein the body includes a height between the upper and lower surfaces corresponding to a desired disc space height between the upper vertebra endplate and the lower vertebra endplate;
- and
- wherein the leading end portion is structured for insertion into the disc space in an at least partially collapsed condition and the height is sized to restore the collapsed disc space to the desired disc space height as the body is inserted in the collapsed disc space.
6 more elements
An implant with an elongated body positionable in a spinal disc space comprising:
- an upper surface orientable toward an endplate of an upper vertebra;
- a lower surface orientable toward an endplate of a lower vertebra;
- a leading end portion and an opposite trailing end portion;
- an at least partially convexly curved anterior sidewall extending between the leading end portion and the trailing end portion;
- and
- a posterior sidewall extending between the leading end portion and the trailing end portion, the posterior sidewall having an average height less than the average height of the anterior sidewall;
- and
- wherein at least one of the upper surface and the lower surface are curved such that a height of the implant near its center is greater than a height of the implant at its leading end;
- and
- wherein the height of the implant near its center is between about 7 mm and 19 mm;
- and
- wherein the height of the implant at its leading end is at least about 3 mm less than the height of the implant near its center.
9 more elements
An implant with an elongated body positionable in a spinal disc space comprising:
- a convexly curved upper surface;
- a convexly curved lower surface;
- a leading end portion defined by a convexly curved surface that extends between the upper surface and the lower surface;
- a trailing end portion defined by a substantially planar surface that extends between the upper surface and the lower surface;
- an anterior sidewall defined by a maximally anterior portion, a first curved portion extending between the leading end portion and the maximally anterior portion, and a second curved portion extending between the trailing end portion and the maximally anterior portion;
- and
- a posterior sidewall extending between the leading end portion and the trailing end portion;
- and
- wherein a height of the implant near its center is between about 8 mm and 14 mm;
- and
- wherein a height of the implant at its leading end is at least about 3 mm less than the height of the implant near its center.
8 more elements
An implant with an elongated body positionable in a spinal disc space comprising:
- an upper surface means orientable toward an endplate of an upper vertebra for substantially cooperatively fitting with the upper vertebra;
- a lower surface means orientable toward an endplate of a lower vertebra for substantially cooperatively fitting with the lower vertebra;
- a leading end means for promoting insertion of the implant between the upper vertebra and the lower vertebra, and an opposite trailing end portion;
- an at least partially convexly curved anterior sidewall means for enabling anterior placement of a portion of the implant between the cortical rim of the upper vertebra and the cortical rim of the lower vertebra;
- and
- a posterior sidewall extending between the leading end means and the trailing end portion;
- and
- wherein a height of the implant near its center is between about 7 mm and 19 mm;
- and
- wherein a height of the implant at its leading end is at least about 3 mm less than the height of the implant near its center.
7 more elements
Dependencies are inferred from the claim text.