摘要:
An implant assembly for stabilizing a spinal motion segment includes a spacer which is at least partially flexible and positionable in an interspinous spacer between adjacent spinous processes. The spacer member includes upper and lower surfaces structured to receive a respective adjacent one of the upper and lower spinous processes of the spinal motion segment and a body having distinctive first and second sections with differing flexibility to modify the manner of movement at the spinal motion segment.
摘要:
An intervertebral prosthetic device for spinal stabilization and a method of using same according to which a body member is implanted between two adjacent vertebrae so that a spinous processes of a vertebrae extends into a notch formed in the body member. A groove is also formed in the body member that engages one of the vertebrae.
摘要:
A retaining mechanism engages a bone fastener to a bone plate as the bone fastener is positioned through a retaining mechanism in a plate hole while preserving multi-axial capabilities of the fastener relative to the plate during insertion of the fastener. When the head of the fastener is positioned adjacent the plate, the head can optionally be received in the retaining mechanism and expand the retaining mechanism to fixedly engage the retaining mechanism into locking engagement with the plate and lock the bone fastener in position relative to the plate. In another form, the multi-axial capabilities of the bone screw is preserved or at least partially preserved when the bone fastener is finally positioned in the retaining mechanism.
摘要:
Methods and systems for performing a surgical procedure using implantable sensors are disclosed. The method includes providing one or more implantable sensors, each sensor configured for implantation adjacent to an anatomical feature of a patient; imaging the patient to determine the relative positions of the one or more implantable sensors relative to the anatomical features of the patient; inserting an implant adjacent to at least one of the anatomical features; and tracking the position of the implant relative to the at least one anatomical feature during the inserting of the implant using the implantable sensors.
摘要:
Devices and methods for replacing one or more spinous processes of a patient include a replacement body with a lamina portion positionable anteriorly toward the spinal canal along with a spinous process portion extending posteriorly from the lamina portion to replace a removed spinous process. Connecting elements extend from opposite sides of the body for connection to the vertebral body with anchors.
摘要:
A surgical implantation procedure and device according to which an expandable member is inserted between anatomical structures, and is expanded into engagement with the structures. The expansion is terminated when the member is in engagement with the structures.
摘要:
An implant assembly for stabilizing a spinal motion segment includes a spacer which is at least partially flexible and positionable between adjacent spinous processes. The spacer member includes upper and lower surfaces structured to receive a respective adjacent one of the upper and lower spinous processes of the spinal motion segment and a body having flexibly distinctive first and second sections relative to one another configured to modify the manner of movement at the spinal motion segment.
摘要:
A prosthetic assembly and method of implanting same, according to which a least one cross-bar is secured to the spinal column. A spacer engages the spinous process of a vertebra of the spinal column. The cross-bar is connected to the spacer via an adapter.
摘要:
An expandable interspinous process spacer is disclosed that includes at least two chambers, one disposed within the other. Each of the at least two chambers can receive an injectable biocompatible material, which advantageously may have different material properties such as hardness. Further, the expandable interspinous process spacer can be changed from a deflated configuration to an inflated configuration. In the inflated configuration, the expandable interspinous process spacer can engage and support a superior spinous process and an inferior spinous process.
摘要:
One technique of the present application includes: evaluating a patient having a previously implanted spinal construct and corresponding spinal fusion from an earlier procedure and determining a spinal segment adjacent to the spinal fusion is degenerating after completion of the earlier procedure. After this determination, the previously implanted spinal construct is augmented by attaching a flexible polymer elongated member to the spinal segment adjacent to the spinal fusion with a bone fastener and by coupling the flexible polymer elongated member to one or more elements of the previously implanted spinal construct. In one form, the elongated member is at least partially comprised of polyetheretherketone.