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US 12,370,056 B2Granted
Devices and methods for altering spinal lateral curvature
Assignee3SPINE, Inc.
InventorsMarc M Peterman, Steven C Humphreys, Scott Hodges
Life of this patent
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Abstract
Disclosed are systems, devices, methods and surgical procedures for altering and/or correcting the alignment of adjacent bones, including bones of the spine.
Claims20
A surgical method for altering a medial/lateral curvature of a diseased or damaged spine, comprising:
- removing at least a portion of a natural facet from at least one of an upper vertebra and an adjacent lower vertebra of the diseased or damaged spine;
- removing at least a portion of an intervertebral disc from between the upper vertebra and adjacent lower vertebra to create a disc space, wherein an endplate of the adjacent lower vertebra has a generally planar natural endplate surface;
- removing a first wedge of bony material from the endplate of the adjacent lower vertebra to create a first modified vertebral surface which is non-parallel to the generally planar natural endplate surface, at least a first portion of the first modified vertebral surface cutting completely through a posterior cortical bone surface of the endplate and a posterior cortical ring of the adjacent lower vertebra without completely removing an anterior cortical bone surface of the endplate of the adjacent lower vertebra,
- removing at least a first portion of a first pedicle of the adjacent lower vertebra to create a first modified pedicle surface which extends along a resected surface of the first pedicle;
- inserting a lower portion of a first arthroplasty device at least partially into the disc space, the lower portion of the first arthroplasty device including an upward facing articulation surface, a first lower surface adapted to engage with the first modified vertebral surface and a bridge portion adapted to engage with the first modified pedicle surface;
- and
- attaching the lower portion of the first arthroplasty device to the adjacent lower vertebra with a bone fastener.
4 more elements
A surgical method for altering a lateral curvature of a spine, comprising:
- removing at least a portion of a natural facet from a lower vertebra of the spine, an upper endplate of the lower vertebra having a presurgical endplate plane;
- removing at least a portion of an intervertebral disc from between the lower vertebra and an adjacent upper vertebra to create a disc space;
- removing bony material from the upper endplate of the lower vertebra to create a modified vertebral body surface which is angled relative to the presurgical endplate plane, at least a portion of the modified vertebral body surface cutting completely through the cortical bone of the endplate to expose a cancellous bone interior of the lower vertebra;
- removing at least a first portion of a first pedicle of the lower vertebra to create a resected pedicle surface which extends along at least a portion of the first pedicle;
- inserting a lower portion of a first arthroplasty device at least partially into the disc space, the lower portion of the first arthroplasty device including an upward facing articulation surface, an anterior lower surface adapted to engage with the modified vertebral body surface and a posterior bridge portion adapted to engage with the resected pedicle surface;
- and
- attaching the lower portion of the first arthroplasty device to the adjacent lower vertebra with a bone fastener.
4 more elements
Dependencies are inferred from the claim text.