A method of manufacturing an implant, including mixing a first quantity of biocompatible polymer particles, a second quantity of bioactive ceramic particles, and a third quantity of fugitive material particles to define an admixture, forming the admixture to define a composite body having an inferior portion, a superior portion and a central portion disposed between the inferior and superior portions, heating the admixture to fuse the first quantity of bioactive polymer particles to define a composite implant body, and infiltrating the composite implant body with a solvent to remove fugitive material particles to yield a network of interconnected pores and to define a porous implant body. The fugitive material particles are hollow spheres partially filled with a material selected from the group comprising air, bioactive agents, biological growth enhancers, drugs, and biocompatible polymer material, combinations thereof.

Spinal implant trials are provided having various configurations and sizes that aid the selection of spinal implants having similar configurations and sizes. A surgeon during surgery can insert various configurations and sizes of the spinal implant trials into a disc space between two adjacent vertebral bodies of a patient to enable the selection of a spinal implant configured and sized to fit the patient's disc space. Fluoroscopic images can be used in aiding the selection of an appropriately configured and sized spinal implant corresponding to one of the spinal implant trials. The spinal implant trials include features that reveal on the fluoroscopic images whether the spinal implant trials are properly located and oriented in the disc space and include features corresponding to different sizes of spinal implants also revealed on the fluoroscopic images.

An implant device for use in achieving spinal fusion, includes an implant having an implant body. The device includes a graded radiopacity calibration tool integrated with the implant body. The tool has a plurality of graded levels of radiopacity representative of a range of bone density parameter amounts. Each of the graded levels corresponds to a different bone density parameter amount. A method is provided that uses the device to determine a degree of one of bone maturity, strength, osteoporotic state, state of healing and state of degrading bone tissue based on a comparison of a bone at the site in the image and radiopacity correlated from a calibration standardized curve defined by the standard, with a range of grey levels representative of degrees of one of the bone maturity, the strength, the osteoporotic state, the state of healing and the state of degrading bone tissue.

A spinal fusion implant including a body and a jacket is disclosed. The jacket includes at least two radiopaque markers extending therefrom for use in determining the position of the implant after placement between intervertebral bodies. Methods of implanting and evaluating positioning of the implant are also disclosed.

A bone stabilization plate system. The bone stabilization plate system includes a base plate configured to fit primarily between an anterior portion of a first bone's lip osteophyte and an anterior portion of a second, adjacent bone's lip osteophyte. The bone stabilization plate system includes a plurality of bone screws configured to fit in respective bone screw holes in the base plate to secure the base plate.

A flexible plastic, resin or polymer material forming a trial plate for use is surgery of bones including spine and extremities. The trial plate having at least one radioopaque region and which may have one radiolucent region. In some instances a main body includes one or more arms formed of subparts. Between the main body and subparts and between the subparts are rangible regions such a ribs or unbroken edges surrounding windows configured as predetermined break points to disassociate portions of an arm from the whole.

An interbody device configured for insertion between adjacent vertebrae includes a body comprising and exterior surface and an interior surface defining a cavity. The body comprises a visualization window extending between the exterior surface and the interior surface, where the visualization window comprises a lattice of radiopaque structures. A density of the lattice in a central region of the visualization window is less than in the density of the lattice in an outer region of the visualization window such that the visualization window is radiolucent through the central region.

Embodiments of a composite interbody system 10 for treating mammalian bony segments including various materials to encourage bony fusion while enabling radiographic visualization where the composite interbody system 10 may be employed between two, adjacent mammalian bony segments to stabilize, maintain spacing between, or couple the bony segments. Other embodiments may be described and claimed.

An intervertebral implant includes a core member operably coupled between an upper and a lower base member. An outer cavity extends between the core member upper end and lower end, and radially between the inner cavity and an outer surface of the core member. A core member inner wall is formed between the inner and an outer cavity, and a core member outer wall is formed between the outer cavity and the outer surface of the core member. A first locking member is positioned on at least one of the core member upper end and the core member lower end and at least one second locking member is positioned on an inner surface of at least one of the upper and lower base member for locking engagement. The upper and lower end of the core member are oriented at a lordotic angle ranging from 1 degrees to 20 degrees.

Coiled spinal implants for disc, vertebral body, and spinal motion segment replacement or reconstruction comprise a plurality of loops and spaces between the loops, with the loops formed of a hollow material and having a plurality of apertures or a longitudinal gap that extend(s) through the sidewalls of the loops and into the hollow center. The coiled implants include one or more balloons within the hollow center, the spaces between the coil loops, and/or within the central void that the coil surrounds. Filling the balloon expands the loops and thereby increases the height of the coil. Bone graft material or bone cement may be deployed from the apertures or gap.