Abstract: An expandable intervertebral implant including a body having a longitudinal axis and including first and second axial walls spaced apart along a transverse axis, and first and second transverse end walls extending between and interconnecting the first and second axial walls. The intervertebral implant includes an expansion member co-acting with the axial walls to expand the body along the transverse axis.

Abstract: A targeting surgical instrument for use in spinal disc replacement includes a first arm, a second arm and a body portion. The first arm is configured to be longitudinally aligned with a mid-line of a spine and to be at least partially received on an endplate of a lower vertebra of spinal cavity. The spinal cavity is defined by a lower vertebra and an upper vertebra of the spinal cavity. The second arm is positioned at an angle relative to the first arm. The second arm defines an insertion angle for a spinal implant. The body portion connects the first arm and the second arm. The body portion includes a plurality of radial opaque markers located to allow alignment of the first arm on the mid-line of the spine.

Abstract: An expandable intervertebral implant including a body having a longitudinal axis and including first and second axial walls spaced apart along a transverse axis, and first and second transverse end walls extending between and interconnecting the first and second axial walls. The intervertebral implant includes an expansion member co-acting with the axial walls to expand the body along the transverse axis.

Abstract: An instrument for separating adjacent vertebrae includes a handle assembly and a distal portion at a distal end of the handle assembly. The distal portion includes first and second members movable from an unexpanded configuration for insertion in the disc space toward an expanded configuration to separate the vertebrae. A cutting member of a cutting instrument can be guided by the instrument to prepare the vertebrae for engagement with an implant.

Abstract: A prosthetic device for anterior-oblique insertion into an intervertebral space is provided. The prosthetic device includes a first component having a first flange for engaging a first vertebra from an anterior-oblique approach, the first flange being angled relative to the longitudinal and transverse axes of the first component, and a second component having a second flange for engaging a second vertebra from an anterior-oblique approach, the second flange being angled relative to the longitudinal and transverse axes of the second component, and wherein the first and second components cooperate to permit articulating motion between the first and second components.

Abstract: A prosthetic device for insertion into an intervertebral space is provided. The prosthetic device includes a first component having a first recess formed therein, the first recess defining a substantially concave recess surface of the first component, a second component having a second recess formed therein, the second recess defining a substantially planar recess surface, and a projection member adapted to engage the second recess surface wherein the projection member is also adapted to engage the first recess surface to permit articulating motion between the first and second components.

Abstract: The present invention relates to orthopedic implants made from a mesh material. The mesh material can be treated in order to promote bone growth, to provide antibiotics, or to provide other beneficial treatment. Specific applications for the implants include, for example, a prosthetic ligament, a tension band, an interbody device, or a fixation device that extends across one or more joints or fractures.

Abstract: A prosthetic device for transforaminal insertion into an intervertebral space is provided. The prosthetic device includes a first component having a first curved flange for engaging a first vertebra from a transforaminal approach, the first component having a first articular surface, and a second component having a second curved flange for engaging a second vertebra from a transforaminal approach, the second component having a second articular surface for cooperating with the first articular surface to permit articulating motion between the first and second components.

Abstract: Embodiments of devices and methods for correcting a vertebral member and/or repositioning a vertebral device relative to the vertebral member. A vertebral device has been previously positioned relative to a vertebral member. Due to subsidence or other factors, the vertebral device has moved and is no longer in alignment. A positioning device is used for re-positioning the vertebral device. A delivery device is used for inserting a material to the vertebral member and/or vertebral device. The material is initially in a first state that is flowable to allow for insertion to the required location. The material changes to a second state that permanently fixes the position of the vertebral device relative to the vertebral member.

Abstract: A posterior arch prosthesis according to the present invention includes a main body, two transverse protuberances extending transversely from either side of the main body, articulating surfaces formed on each of the transverse protuberances, and a posterior protuberance extending posteriorly from the main body. The posterior protuberance is attached to a first vertebra from which the natural posterior arch has been removed such that the articulating surfaces are arranged in articulating contact with surfaces on an adjacent, second vertebra. The posterior protuberance includes an attachment to which native structure may be reattached upon attachment of the prosthesis to the first vertebra.

Abstract: A system for flexibly stabilizing a vertebral column in tensile and compressive loading by connecting a first and a second vertebrae includes first means for connecting to the first vertebra and second means for connecting to the second vertebra. A flexible connector is configured to extend from and connect the first means to the second means. The flexible connector may include first and second apertures for respectively attaching to the first and second means for connecting. Each aperture may include a reinforcement member therein.

Abstract: A modular prosthetic device is described. The modular prosthetic device is provided with an anchoring device having first and second end members, the first and second end members cooperating to receive a prosthetic insertion device. The first and second end members each include a first surface, at least one vertebral-engaging member extending from the first surface, a second surface in an opposed relation to the first surface, and at least one flange extending from the second surface. The anchoring device is adapted to receive a variety of prosthetic insertion devices such that the modular prosthetic device can be revised into a variety of modular prosthetic devices. A stacking member is also provided for use with the anchoring device to provide a variety of modular, stackable prosthetic devices.

Abstract: A prosthetic device for insertion into an intervertebral space defined by adjacent vertebrae includes a first articulation member and a second articulation member configured to cooperate to permit articulating motion. An expandable member may be connected to the first articulation member and may be configured to support and position the first articulation member within the intervertebral space.

Abstract: A modular prosthetic device is described. The modular prosthetic device is provided with an anchoring device having first and second end members, the first and second end members cooperating to receive a prosthetic insertion device. The first and second end members each include a first surface, at least one vertebral-engaging member extending from the first surface, a second surface in an opposed relation to the first surface, and at least one flange extending from the second surface. The anchoring device is adapted to receive a variety of prosthetic insertion devices such that the modular prosthetic device can be revised into a variety of modular prosthetic devices. A stacking member is also provided for use with the anchoring device to provide a variety of modular, stackable prosthetic devices.

Abstract: An articular disc prosthesis and method of implanting the same within an intervertebral space between adjacent vertebral bodies. The prosthesis includes a pair of articular components and an articular ball disposed therebetween. Each of the articular components includes an outer shell portion and a removable inner insert portion. The insert portion includes a concave articular surface sized and shaped to receive a portion of the articular ball to provide articulating motion between the articular components. The outer shell portion includes a central hemi-cylindrical portion, a pair of laterally extending flanges, and an axially extending lip. Following removal of the natural intervertebral disc, a pair of hemi-cylindrical recesses are formed along a central region of the adjacent vertebral bodies to a predetermined depth.

Abstract: An articular disc prosthesis and method of implanting the same within an intervertebral space between adjacent vertebral bodies. The prosthesis includes a pair of articular components and an articular ball disposed therebetween. Each of the articular components includes an outer shell portion and a removable inner insert portion. The insert portion includes a concave articular surface sized and shaped to receive a portion of the articular ball to provide articulating motion between the articular components. The outer shell portion includes a central hemi-cylindrical portion, a pair of laterally extending flanges, and an axially extending lip. Following removal of the natural intervertebral disc, a pair of hemi-cylindrical recesses are formed along a central region of the adjacent vertebral bodies to a predetermined depth.

Abstract: Embodiments of devices and methods for correcting a vertebral member and/or repositioning a vertebral device relative to the vertebral member. A vertebral device has been previously positioned relative to a vertebral member. Due to subsidence or other factors, the vertebral device has moved and is no longer in alignment. A positioning device is used for re-positioning the vertebral device. A delivery device is used for inserting a material to the vertebral member and/or vertebral device. The material is initially in a first state that is flowable to allow for insertion to the required location. The material changes to a second state that permanently fixes the position of the vertebral device relative to the vertebral member.

Abstract: Described are artificial disc implants for insertion between first and second adjacent vertebrae in a patient. The implants have a first member and a second member in articulating relationship. At least one member of the implant includes an amorphous metal element. Also described are related methods of making and using artificial disc implants.

Abstract: An intervertebral prosthetic joint including a first articular component adapted to engage a first vertebra and a second articular component adapted to engage a second vertebra The articular components include abutting convex and concave articular surfaces that cooperate to permit articulating motion between the articular components. At least one of the convex and concave articular surfaces includes at least one surface depression that is configured to facilitate removal of matter disposed between abutting portions of the articular surfaces. In one embodiment of the prosthetic joint, each of the articular components has a vertebral bearing surface and a flange extending therefrom that is configured to penetrate a corresponding one of the first and second vertebrae, with the flange defining at least one opening extending therethrough to permit bone through-growth.

Abstract: A system for removing an implant from between a pair of vertebral bodies comprises a removal shaft. The removal shaft includes a threaded shaft portion and is coupled to a spreader block. A connector body is threadedly coupled to the threaded shaft portion. The system further includes a first removal blade having a proximal end and a distal end. The proximal end is attached to the connector body and the distal end is attachable to the implant. A first spreader brace is attached to the spreader block. Rotation of the threaded shaft removes at least a portion of the implant from between the pair of vertebral bodies.