A bone cage may include first and second spaced apart frames defining a bone ingrowth cavity therebetween, a plurality of first protrusions each having a proximal end coupled to the first frame and a distal end extending into the cavity toward the second frame but not contacting the second frame, and a plurality of second protrusions each having a proximal end coupled to the second frame and a distal end extending into the cavity toward the first frame but not contacting the first frame. Furthermore, the distal ends of the first protrusions may be laterally offset from the distal ends of the second protrusions.

A low profile intervertebral implant for implantation in an intervertebral disc space between adjacent vertebral bodies of a quadruped. The intervertebral implant includes a plate and a spacer that extends from the plate. The intervertebral implant can define geometries that nest with complementary geometries of the vertebral bodies. Further, the plate can include fixation holes that extend along trajectories such that screws inserted through the fixation holes and driven into the respective vertebral bodies can purchase with dense cortical bone.

Various cannulated bone implants and methods of using the cannulated bone implant are disclosed. The cannulated bone implant can include a proximal portion, a proximal end, a distal portion, a distal end, a transition portion, a threaded portion, a finned portion and a central passage. The transition portion can comprise a bend positioned between the proximal portion and the distal portion. The threaded portion can be positioned along the proximal portion between the proximal end and the transition portion. The threaded portion can be configured to secure the implant into a bone of a patient. The finned portion can be positioned along the distal portion between the transition portion and the distal end. The finned portion can be configured to prevent migration and/or rotation of the implant in use. The central passage can extend linearly from the proximal end of the implant to the distal end of the implant.

A surgical fastener manipulation tool in accordance with embodiment of the present invention is useful by a surgeon to place fasteners such as threaded screws. The surgical fastener manipulation tool selectively engages a mating structure of fastener for securing the fastener thereto. Thus, advantageously, the surgical fastener manipulation tool can be used for placing such fasteners and/or can be used for extracting (i.e., removing) such fasteners. The ability to extract a fastener (e.g., a threaded bone screw) with the same tool used for placing it is highly beneficial due to time savings during a surgical procedure and is advantageous with respect to prior art fastener manipulation tool configurations that require placement and extraction tools to be differently configured.

Spinal implants, spinal implant systems, and methods for inserting spinal implants are provided. The implants can be implanted in an intervertebral space between adjacent superior and inferior vertebrae. The implant includes a superior implant surface having one or more superior positioning grooves configured to receive a corresponding superior positioning rail and an inferior implant surface having one or more inferior positioning grooves configured to receive a corresponding inferior positioning rail when the implant is implanted in the intervertebral space.

The present invention relates to the diagnosis and treatment of joint-related diseases, in particular osteoarthritis. Based on the analysis of the microarchitecture, such as microchannels, of the subchondral bone, the present invention provides methods for evaluating the health state of a joint as well as determining whether a joint is prone to develop or has already developed a disease correlated to joint and cartilage destruction. The invention further provides for membranes and other implants mimicking healthy subchondral bone structure suitable for promoting regeneration of joint structure and function.

The present invention disclosed a method of producing a three-dimensional porous tissue in-growth structure. The method includes the steps of depositing a first layer of metal powder and scanning the first layer of metal powder with a laser beam to form a portion of a plurality of predetermined unit cells. Depositing at least one additional layer of metal powder onto a previous layer and repeating the step of scanning a laser beam for at least one of the additional layers in order to continuing forming the predetermined unit cells. The method further includes continuing the depositing and scanning steps to form a medical implant.

The present disclosure in one aspect provides a surgical implant comprising an upper bone contacting surface comprising a plurality of irregularly shaped pores having an average pore size, where the pores are formed by a plurality of struts, a lower bone contacting surface comprising a plurality of irregularly shaped pores having an average pore size, wherein the pores are formed by a plurality of struts; and a central body comprising a plurality of irregularly shaped pores having an average pore size, wherein the pores are formed by a plurality of struts, wherein the average pore size on the upper and lower bone contacting surfaces is different than the average pore size on the central body.

A modular augment cone system and methods of implanting the modular augment cone system. The system includes a main body cone a first cutout in the cone wall, and including a proximal end, a distal end, and a cone wall extending between the proximal and distal ends. A portion of the cone wall proximal to the first cutout includes an attachment feature. A first augment cone is positionable in the first cutout, the first augment cone including an attachment feature configured to mate with the attachment feature of the cone wall to attach the first augment cone into the first cutout. The main body cone can include a second cutout in the cone wall. In such systems, the modular augment cone system can include a second augment cone configured to mate with an attachment feature of the cone wall to attach the second augment cone into the second cutout.

The shim-type implant for distraction and fusion of cervical facet joints is provided. The implant has a generally box-like shape with a blunt leading edge that may be centered or offset to the inferior face. The implant may include a graft window for enhanced osseous through-growth after implantation. The implant is coated with hydroxyapatite (HA) and/or tri-calcium phosphate (TCP) to allow for osteo-conduction, is porous, and has a roughened surface with serrations on the superior and inferior faces. The implant may be fabricated from a titanium or tantalum alloy. In an embodiment, a set of tools is provided with a chisel and one or tongs and one or more decorticators for inserting the implant.