摘要:
The invention discloses methods and devices for repairing, replacing and/or augmenting natural facet joint surfaces and/or facet capsules. A facet joint restoration device (410) of the invention for use in a restoring a facet joint surface comprises: a cephalad facet joint element comprising a flexible member (422) adapted to engage a first vertebrae and an artificial cephalad joint (426) ; and a caudad facet joint element comprising a connector adapted for fixation to a second vertebrae and an artificial caudad joint (428) adapted to engage the cephalad facet joint. In another embodiment, the invention discloses a facet joint replacement device for use in replacing all or a portion of a natural facet joint between a first vertebrae and a second vertebrae.
摘要:
The invention discloses methods, devices, systems and kits for repairing, replacing and/or augmenting natural facet joint surfaces and/or facet capsules. An implantable facet joint device of one embodiment comprises a cephalad facet joint element and a caudal facet joint element. The cephalad facet joint element includes a member adapted to engage a first vertebra, and an artificial cephalad bearing member. The caudal facet joint element includes a connector adapted for fixation to a second vertebra at a fixation point and an artificial caudal bearing member adapted to engage the cephalad bearing member. The artificial caudal bearing member is adapted for a location lateral to the fixation point.
摘要:
An adaptable spinal facet joint prosthesis, including a pedicle fixation element; a laminar fixation element; d a facet joint bearing surface having a location adaptable with respect at least one of the pedicle fixation element d the laminar fixation element. Also disclosed is a method of implanting an adaptable spinal facet joint asthesis including the steps of determining a desired position for a facet joint bearing surface; and attaching a prosthesis comprising a facet joint bearing surface to a pedicle portion of a vertebra and a lamina portion of a vertebra to place the facet joint bearing surface in the desired position. The invention also provides a facet joint prosthesis implant tool including a tool guide adapted to guide a vertebra cutting tool; and first and second fixation le alignment elements extending from the saw guide. The invention also provides systems for treating spinal pathologies that include intervertebral discs in combination with spinal and facet joint prostheses.