摘要:
A prosthetic device for lateral insertion into an intervertebral space is provided. The device includes a first component for engaging a first vertebral body, a second component for engaging a second vertebral body, and an articulation member positioned between the first and second components. The first and second components each have a length that extends upon cortical bone of opposing sides of an apophyseal ring of the corresponding vertebral body and a width that is smaller than the length. A ratio of length to width for each of the first and second components can be in the range of 1.3:1 to 1.7:1.
摘要:
An artificial spinal joint creates at least a portion of a coupling between a superior vertebra and an inferior vertebra. The artificial spinal joint comprises an anterior joint replacement component extending into an intervertebral disc space between the superior and inferior vertebrae. The artificial spinal joint further comprises a bridge component coupled to the anterior joint replacement and extending posteriorly from the anterior joint replacement beyond the intervertebral disc space and a posterior joint replacement component coupled to the bridge, wherein the posterior joint replacement component includes a posterior protrusion engaged with a posterior socket.
摘要:
An inter-transverse process spacer system comprises a first spacer device. The first spacer device comprises opposing end portions. The first spacer device is adapted for insertion between a first pair of adjacent transverse processes, and the opposing end portions of the first spacer device are adapted to engage the first pair of adjacent transverse processes. The inter-transverse process spacer system further comprises a first connection device connected to the first spacer device and adapted to engage at least one of the first pair of adjacent transverse processes.
摘要:
Interior connecting interbody cage insertional tools, methods and devices are provided wherein the same can be utilized for making placement of interbody cages more accurate, safer and less likely to violate the structural integrity of the interbody cage while providing support to a leading end of the cage as the leading end re-capitulates or distracts the disc space as the cage is inserted.
摘要:
Apparatus and method for compressing a shape memory material implant to be implanted in a patient. The apparatus in some embodiments includes opposing dies, an actuator, and a uniformity controller. The opposing dies are configured to grasp the shape memory material implant, when placed therebetween. The actuator actuates the opposing dies toward each other to compress the shape memory material implant. The uniformity controller of some embodiments provides uniform compression of a given type of shape memory material implant.
摘要:
A method of decompressing a facet joint comprises forming an opening in a facet capsule of the facet joint and inserting a spacer device through the opening into the facet capsule.
摘要:
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.
摘要:
An artificial spinal joint for creating at least a portion of a coupling between a superior vertebra and an inferior vertebra comprises an inferior arthroplasty half. The inferior arthroplasty half comprises an inferior articulating component for placement in an intervertebral disc space between the superior and inferior vertebrae, a first posterior arm, and a first bridge component coupled between the inferior articulating component and the first posterior arm. The artificial spinal joint further includes a superior arthroplasty half. The superior arthroplasty half comprises a superior articulating component for placement in an intervertebral disc space between the superior and inferior vertebrae, a second posterior am, and a second bridge component coupled between the superior articulating component and the second posterior arm. The first posterior arm and the second posterior arm cross an anterior-posterior axis defined centrally through and extending from the intervertebral disc space.
摘要:
An expandable spinal implant including at least two expandable branch portions extending generally along a longitudinal axis and each including a fixed end portion and an opposite movable end portion with the fixed end portions coupled together adjacent a base portion of the implant. A first of the branch portions includes at least one transverse projection having opposite axially-facing outer surfaces. A second of the branch portions defines at least one transverse recess having opposing axially-facing inner surfaces. The transverse projection is positioned within and displacable along the transverse recess with the outer surfaces of the projection positioned in close proximity with the inner surfaces of the recess to provide structural support to the implant subsequent to expansion. In one embodiment, the branch portions are separated from one another by at least one slot including a narrow portion that defines the close fitting transverse projection and transverse recess.
摘要:
Some embodiments of the present disclosure relate to an implantable device for the closure and/or repair of a spinal defect (e.g., posterior annular defects) and/or preventing recurring herniation. An implantable medical device, in some embodiments, may be coated or impregnated with a releasable pharmaceutical compound. Accordingly, some embodiments of the present disclosure relate to compositions that include one or more pharmaceutical compounds. In addition, some embodiments of the disclosure relate to methods for making and using compositions and medical implants. A spinal implant may include, for example, a scaffold having a substantially planar surface; and a plurality of tails, each of which has a first end that is attached to the scaffold and a second end that is configured and arranged to be threaded through a respective perforation in a vertical body, wherein the scaffold comprises a pharmaceutically effective amount of a pharmaceutical agent.