摘要:
An implant assembly for stabilizing a spinal motion segment includes a spacer member positionable between adjacent spinous processes and upper and lower engaging members extending from the spacer member. The upper and lower engaging members engage at least one lamina to resist flexion of the spinal motion segment.
摘要:
A surgical implantation procedure and a device for performing same according to which an expandable member is inserted between anatomical structures and expanded in one plane to cause relative movement between the structures. The expansion is terminated when the structures are in a predetermined spatial relationship.
摘要:
Devices and methods for attaching a support to the sacrum. One device may include first and second anchors that mount to the sacrum, and first and second lateral extensions coupled to the anchors to secure the device to the sacrum. A bearing face having a width is positioned between the lateral extensions. The face may have a height in an anterior-posterior direction greater than the spinous process of the sacrum. Further, the bearing face may be oriented in a superior direction when the device is mounted to the sacrum. An implant may be supported by the device to space the sacrum and L5 vertebrae. The implant may be an interspinous device and positioned between the L5 spinous process and the bearing face. The implant is supported at least in part by the bearing face.
摘要:
A method of treating a spinal condition includes attaching an anterior spinal motion device in an anterior region of a motion segment associated with the pair of vertebrae and attaching a posterior motion preservation device in a second region of the motion segment. The anterior spinal motion device may include an elastic material or a motion preserving disc prosthesis having at least one articulating surface.
摘要:
A prosthetic device and a method of implanting same between two vertebrae of a vertebral column to stabilize the column, according to which each vertebrae is engaged by a spacer, and the spacers are connected to permit relative movement between the spacers so that the distance between the spacers can vary to conform with the distance between the vertebrae and accommodate bending movements of the vertebral column.
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.
摘要:
A posterior spinal fixation device or dynamic spinal stabilization device or other orthopedic device includes an active agent-delivery component. The active agent-delivery component has an active agent impregnated therein or adsorbed thereon or otherwise contained therein and is configured to release the active agent locally after the device is implanted in a patient. One preferred type of implant in accordance with the invention is an implant for stabilizing a spinal motion segment that includes a spacer member positionable between adjacent spinous processes or transverse processes or other posterior spinal element, including an implanted anchor element.
摘要:
Devices and methods for spinal stabilization include first and second anchor assemblies engageable to respective ones of first and second vertebrae and a connecting element engageable to the first and second anchor assemblies. The connecting element includes opposite first and second anchor engaging end portions and a length along a longitudinal axis between the first and second anchor engaging end portions sized for positioning between and engaging each of the first and second anchor assemblies when the first and second anchor assemblies are engaged to the respective vertebrae. The connecting element further includes a support portion between the first and second anchor engaging end portions. The support portion includes first and second support members spaced from one another on opposite sides of the longitudinal axis, and a stabilizing member extending between the support members in a transverse orientation to the longitudinal axis.
摘要:
An implant is disclosed and can include a body and a plurality of pellets disposed within the body. The implant can be moved between an unmolded, relaxed configuration wherein the body is not conformed to a bone and a molded, relaxed configuration wherein the body is at least partially conformed to the bone.