A unique, universal Zero-Profile Expandable Intervertebral Spacer (ZP-EIS) device for fusion and distraction throughout the entire spine is provided which can be inserted via anterior, anterolateral, lateral, far lateral or posterior surgical approaches dependent on the need and preference. Multiple ZP-EIS embodiments each with unique mechanisms of calibrated expansion are provided. Two of these embodiments incorporate bi-directional fixating transvertebral (BDFT) screws and five other embodiments do not incorporate BDFT screws. A tool for implantation into the intervertebral device and calibrated device expansion is also disclosed.

Expandable spinal fusion devices, systems, and methods of using them are provided, and they can be inserted in a subject in a collapsed state through a small surgical corridor, and the expand cephalocaudal only, transverse only, or in both directions, in which direction of expansion can also be obtained independently, if desired, after the insertion. These inventions are valuable in reducing risk and surgical complexity, allowing for an on-the-fly selection of a desirable width footprint, a desired control of height expansion through a gradual cephalocaudal expansion, and a desired control of the alignment of the adjacent vertebral bodies. Devices, systems, and methods are also offered to provide a desired control of the contact area desired between the device and the upper and lower vertebral endplates achieved, for example, using an interdigitated endplate system.

Described are devices, implants and kits for treating incontinence in a male or female. In particular an assembly comprising a multi-piece implant comprising a support portion piece (82) and two extension portion pieces (84) adjustably connected to the support portion piece, and an adjusting tool (92) to allow adjustment of extension portion pieces relative to the support portion piece, is described.

A dilation introducer for orthopedic surgery is provided for minimally invasive access for insertion of an intervertebral implant. The dilation introducer may be used to provide an access position through Kambin's triangle from a posterolateral approach. A first dilator tube with a first longitudinal axis is provided. An access cannula may be introduced over the first dilator tube. A drill may be inserted through the access cannula and used to perform a foraminoplasty. Surgical instruments may pass through the access cannula to operate on an intervertebral disc and/or insert an intervertebral implant.

An expandable interbody spacer (10) is provided that includes a pair of oppositely facing endplate components (20, 40) and an interior component that includes one or more vertically extending stacks of arranged C-clip members (70) radially surrounding one or more bosses (30) protruding interiorly from one of the endplates, wherein the size and configuration of the bosses and the C-clip members are designed to allow the incremental expansion of expandable interbody spacer.

A spinal implant includes a first member having a wall that defines an axial cavity. A second member extends between a first end and a second end and defines a longitudinal axis. The second member is configured for disposal with the axial cavity and translation relative to the first member. A third member has an outer surface engageable with tissue and an inner surface disposed to dynamically engage the first end in response to the engagement of the outer surface with the tissue. Systems and methods are disclosed.

An expandable vertebral device includes a base assembly having end portions that are movable relative to one another via adjustment of an adjustment mechanism at the first end portion. A plurality of movable plates are movably disposed at the base assembly and are at least vertically movable relative to the base assembly as the end portions are moved relative to one another. Each of the end portions has a pair of vertical guide elements and may have a pair of lateral guide elements. Each of the movable plates includes a vertical guide that moves along the respective vertical guide element and may have a lateral guide that moves along a respective lateral guide element. When the adjustment mechanism is adjusted to draw the end portions toward one another, the movable plates move outward from a longitudinal axis of the base assembly as the guides move along the respective guide elements.

A method for stabilizing a cervical spine segment includes inserting a respective uncinate joint stabilizer into each uncinate joint along a medial-to-lateral direction starting from intervertebral disc space of the cervical spine segment, and securing each uncinate joint stabilizer to the respective uncinate joint. A system for stabilizing a cervical spine segment includes a pair of uncinate joint stabilizers, each (a) elongated along a lengthwise dimension and configured for placement in the respective uncinate joint with the lengthwise dimension substantially oriented along an anterior-to-posterior direction of the cervical spine segment, (b) having height configured to define spacing of the respective uncinate joint, (c) and including a tapered portion for interfacing with superior and inferior surfaces of the respective uncinate joint and to enable insertion of the uncinate joint stabilizer into the respective uncinate joint from intervertebral disc space of the cervical spine segment.

A methodology for grafting together adjacent bony structures is provided using an implant device having an endplate with an inner disc portion and outer ring portion spaced from the inner disc portion by a connecting wall disposed there between. An endplate interior surface includes a retaining structure for securing the endplate to one of the bony structures, and endplate an exterior surface has an integrally formed socket. A ball-joint rod has a longitudinally extending body and an end, and at least a portion of the ball-joint rod end is curvilinear in shape. The curvilinear ball-joint rod end is rotatably disposed in the endplate socket to fixedly interconnect the bony structures.

An abutment system for operatively coupling an implant stem to an exo-prosthesis. The abutment system includes a plurality of interlocking sleeve elements that are operatively coupled to an implant stem positioned within a prepared site of a selected bone. The interlocking sleeve elements of the abutment system are selectively removable and replaceable.