摘要:
A method for implanting an articulating intervertebral disc prosthesis into an intervertebral disc space comprises surgically accessing the intervertebral disc space through an opening on a first lateral side of the intervertebral disc space and inserting a first half of the articulating intervertebral disc prosthesis through the opening and into the intervertebral disc space. The method further comprises inserting a second half of the articulating intervertebral disc prosthesis through the opening on the first lateral side of the intervertebral disc space and positioning the first half of the articulating intervertebral disc prosthesis on a second lateral side of the intervertebral disc space. The method also comprises positioning the second half of the articulating intervertebral disc prosthesis on the first lateral side of the intervertebral disc space.
摘要:
A method for implanting an articulating intervertebral disc prosthesis into an intervertebral disc space comprises surgically accessing the intervertebral disc space through an opening on a first lateral side of the intervertebral disc space and inserting a first half of the articulating intervertebral disc prosthesis through the opening and into the intervertebral disc space. The method further comprises inserting a second half of the articulating intervertebral disc prosthesis through the opening on the first lateral side of the intervertebral disc space and positioning the first half of the articulating intervertebral disc prosthesis on a second lateral side of the intervertebral disc space. The method also comprises positioning the second half of the articulating intervertebral disc prosthesis on the first lateral side of the intervertebral disc space.
摘要:
An implantable prosthesis is described having a pair of opposed shells and a central body disposed between the opposed shells wherein the central body and the shells cooperate to limit the motion of the central body with respect to the shells. An assembly for preparing a disc space for the implantation of a prosthesis is further described having a plurality of instruments cooperating to guide a tool associated with the assembly.
摘要:
An assembly for preparing a vertebral disc space to receive a prosthesis comprises a support frame having a base and a pair of guide tracks extending from the base. The base is adapted to attach to a plurality of vertebral bodies. The assembly further includes a guide block operatively connected to at least one of the guide tracks and having an opening disposed there through. The assembly further includes a position control mechanism corresponding to the at least one of the guide tracks. The position control mechanism has a plate extending there from for coupling to the guide track and the guide block and an actuating knob for adjusting the position of the plate and therefore the guide block. The assembly further includes a bone-removal device positioned through the opening of the guide block and operatively connected to the guide block.
摘要:
An vertebral implant is interposed between two vertebral endplates and comprises a first endplate assembly having a first restraint mechanism extending from a first exterior surface for engaging a first vertebral endplate The implant further comprises a second endplate assembly having a second restraint mechanism extending from a second exterior surface for engaging a second vertebral endplate and a central body articulable between the first and second endplate assemblies. The first restraint mechanism has a shape that matches a contour in the first vertebral endplate.
摘要:
Methods for forming a shaped surface, for example, a shaped end plate between adjacent vertebral bodies, and a bone removal device for use in such methods. The device includes a contour having a predetermined profile corresponding at least in part to an implant, and a cutting element following the contour and having a cutting edge having a profile corresponding to the contour profile.
摘要:
Embodiments for a spinal implant having elements that are accessible by a surgical approach and releasably engagable by a surgical tool for improved revision of the spinal implant about a patient's spine.
摘要:
A prosthetic device according to which a time-dependent degree of resistance is provided to at least one predetermined type of relative directional motion between first and second components of the device.
摘要:
Methods and devices for providing a stabilized implant at a site of implantation include providing locking members on faces of the implant and applying bone cement to the implant faces. The locking members secure the bone cement so that the bone cement will not be substantially displaced when the implant is inserted at an implantation site.
摘要:
A multi-piece intervertebral disc augmentation implant that may be assembled within the annulus fibrosus is disclosed. The implant may be guided into a precise location through a relatively small opening in the annulus fibrosus with the aid of an elongated guide.