An intervertebral fusion cage that is adapted to contain an inserter within its inner volume during insertion of the cage.

The present invention relates generally to a prosthetic spinal disc for replacing a damaged disc between two vertebrae of a spine. The present invention also relates to a method for implanting a prosthetic spinal disc via anterior or anterior lateral implantation. Other surgical approaches for implanting the prosthetic disc may also be used.

An implant device is provided that is configured for implantation at multiple locations between adjacent vertebrae. The implant device comprises an implant body, a first portion of the implant body, and a second portion of the implant body adjustably interconnected with the first portion. The implant body has a compact orientation and an extended orientation to allow the implant body to be shifted from one orientation to the other orientation for being positioned in any one of areas between the spinous processes of the adjacent vertebrae, between laminar regions of the adjacent vertebrae, spanning an opening in the annulus between the adjacent vertebrae, and in the intervertebral space between the adjacent vertebrae.

A medical device for insertion into an organ of the body, with a compressible and expandable mesh structure having struts which are connected together by strut connectors and delimit closed cells of the mesh structure, wherein respectively, two of the struts of at least one cell are disposed opposite each other and form a first strut pair and a second strut pair, wherein one of the two strut pairs is connected together by at least one connecting strut which extends into the cell and bridges it.

An intervertebral implant has a hollow space formed within the implant and accessible through an elongate opening extending through a recessed portion of the side wall, and the hollow space is shaped to receive an engagement portion of a drive shaft of an insertion tool; and the intervertebral implant includes at least two guiding surfaces facing each other and being configured for sliding engagement by a portion of a sleeve of the insertion tool movably holding the drive shaft.

The present invention relates generally to a prosthetic spinal disc for replacing a damaged disc between two vertebrae of a spine. The present invention also relates to a method for implanting a prosthetic spinal disc via anterior or anterior lateral implantation. Other surgical approaches for implanting the prosthetic disc may also be used.

Disclosed herein are methods and devices for repairing a knee joint, including customizable and/or highly selectable implants and/or implant components for each patient to provide optimal fit and function.

A method for reducing prosthetic loading failure including the steps of providing a prosthesis for a vertebral column comprising at least an upper part for attachment to an upper vertebrae and a lower part for attachment to a lower vertebrae, the upper part having a lower curved surface and the lower part having an upper curved surface, wherein the upper and lower curved surfaces have a center of radius of curvature offset rearwardly with respect to a central vertical axis through the upper and lower vertebrae, and positioning the centroid of at least one of the upper and lower parts substantially on the same vertical axis of the center of radius of curvature.

The present embodiments describe a graft material suitable for use in a medical procedure. In one example, the graft material comprises a plurality of circumferential threads and achieves at least two unique physical states. Each thread is constructed such that during a first state, the threads are taut, inexpansible, and have a first diameter. Each thread is also constructed such that during a second state occurring after the first state, the threads are taut, inexpansible, and have a second diameter greater than the first diameter. The first and second diameters are predetermined. In another example, at least one thread is constructed from at least two interwoven fibers, at least one of which is biodegradable. Over time, at least one fiber biodegrades, allowing the remaining fiber(s) to elongate, thereby achieving the second inexpansible state having a greater diameter.

A surgical instrument and method are provided for removal of a spinal implant from the intervertebral disc space. The instrument includes a carriage body for interfacing with the implant, a housing for interfacing with the vertebrae, and a handle portion having a first portion rotatably coupled with a proximal end of the housing and a second portion rotatably engageable with a proximal attachment portion of the carriage body. A central passage of the housing extends between the proximal end and a distal engagement surface of the housing. The central passage is dimensioned to mate with the carriage body. Rotation of the handle portion about an axis causes translational movement of the carriage body along the axis. A modular inserter/distractor apparatus and method and an anchor remover and method are also provided.