Multiple facet joint replacement
First Claim
1. A system for replacing at least a first left facet and a first right facet of a vertebra, the system comprising:
- a first left articular surface shaped to replace the first left faceta first right articular surface shaped to replace the first right facet; and
a bridge configured to connect the first left articular surface to the first right articular surface without requiring removal of a spinous process of the vertebra and without encircling the spinous process.
5 Assignments
0 Petitions
Accused Products
Abstract
A prosthesis for the replacement of multiple diseased or traumatized spinal facets comprises a portion that replaces at least a bony portion of the facets to be replaced and where the prosthesis attaches to the vertebra in a manner that does not require attachment to, or abutment against, the lamina. Multiple configurations of the prosthesis provide for replacement of the two inferior facets, the two superior facets, a superior and inferior facet, or all four facets. A method of installing the prosthesis is provided that is comprised of the steps of resecting at least a portion of the facets that carry the diseased or traumatized spinal facets and attaching the prosthesis in a manner that does not require attachment or abutment against the lamina.
519 Citations
20 Claims
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1. A system for replacing at least a first left facet and a first right facet of a vertebra, the system comprising:
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a first left articular surface shaped to replace the first left facet a first right articular surface shaped to replace the first right facet; and a bridge configured to connect the first left articular surface to the first right articular surface without requiring removal of a spinous process of the vertebra and without encircling the spinous process. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for replacing at least a first left facet and a first right facet of a vertebra, the system comprising:
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a first left articular surface shaped to replace the first left facet a first right articular surface shaped to replace the first right facet; and a bridge extending only superior to a spinous process of the vertebra to connect the first left articular surface to the first right articular surface without requiring removal of the spinous process. - View Dependent Claims (11, 12)
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13. A system for replacing at least a first left facet and a first right facet of a vertebra, the system comprising:
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a first left articular surface shaped to replace the first left facet a first right articular surface shaped to replace the first right facet; and a bridge extending only inferior to a spinous process of the vertebra to connect the first left articular surface to the first right articular surface without requiring removal of the spinous process. - View Dependent Claims (14, 15)
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16. A method for replacing at least a first left facet and a first right facet of a vertebra, the method comprising:
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positioning a first left articular surface to replace the first left facet; positioning a first right articular surface to replace the first right facet; and positioning a bridge to connect the first left articular surface to the first right articular surface without requiring removal of the spinous process of the vertebra and without encircling the spinous process. - View Dependent Claims (17, 18)
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19. A method for replacing at least a first left facet and a first right facet of a vertebra, the method comprising:
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positioning a first left articular surface to replace the first left facet; positioning a first right articular surface to replace the first right facet; and positioning a bridge to extend only superior to a spinous process of the vertebra to connect the first left articular surface to the first right articular surface without requiring removal of the spinous process.
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20. A method for replacing at least a first left facet and a first right facet of a vertebra, the method comprising:
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positioning a first left articular surface to replace the first left facet; positioning a first right articular surface to replace the first right facet; and positioning a bridge to extend only inferior to a spinous process of the vertebra to connect the first left articular surface to the first right articular surface without requiring removal of the spinous process.
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Specification