In accordance with one or more embodiments herein, a system for optimizing a position of an implant having an individually customized implant hat and at least one implant protrusion extending from the implant hat in the direction of an implant axis in an anatomical joint of a patient is provided. The system comprises a storage media and a processor which is configured to: receive medical image data representing a three dimensional image of the joint from the storage media; obtain a three dimensional virtual model of the joint which is based on the received medical image data; identify damage in the joint based on the received medical image data and/or the three dimensional virtual model of the joint; define an implant area that covers at least a major part of the identified damage; position a virtual implant template having an implant hat corresponding to said implant area in the three dimensional virtual model of the joint; and generate a customized top surface of the implant hat to correspond to a simulated healthy cartilage surface. The processor is configured to position the virtual implant template by: placing the virtual implant template so that the cross section area of the implant hat in a direction perpendicular to the implant axis covers at least a major part of the damage; and optimizing the tilt of the implant axis, while maintaining the position of the cross section area of the implant hat in the joint, by minimizing at least one of the maximum penetration depth into the bone along the circumference of the implant hat; the total volume of bone and/or cartilage to be removed for implanting the implant; and/or the surface area of the implant penetration into the bone.

A spinal bone graft includes one or more cortical bone portions forming a first unit. The first unit includes an engagement surface for contacting bone, and a mating surface. The mating surface forms at least one first undercut. The bone graft also includes one or more cortical bone portions forming a second unit. The second unit includes an engagement surface for contacting bone, and a mating surface. The mating surface forms either at least one second undercut, or at least one connector. In the former, at least one connector is received in each of the first and second undercuts to interconnect the first and second units. In the latter, the at least one connector of the second unit is received in the first undercut of the first unit to interconnect the first unit and second unit.

Embodiments herein relate to design methods for design of an individually customized implant, based on a 3D virtual model of an implant. The design method comprises identifying a damage area, presenting a virtual 3D view of said identified damage area, creating a 3D virtual implant comprising virtually placing in said 3D view a shape, wherein the area of the shape covers or partly covers said identified damage area, producing an implant based on said created 3D virtual implant.

A method for treating a spine is provided. The method includes the steps of: disposing an interbody implant adjacent a posterior portion of an intervertebral disc space; connecting a surgical instrument with at least one fixation element fastened with tissue adjacent the posterior portion; and manipulating the surgical instrument such that tissue adjacent the posterior portion engages the interbody implant and one or more vertebra rotate about the interbody implant. Spinal implants, surgical instruments and systems are disclosed.

A spinal bone graft includes one or more cortical bone portions forming a first unit. The first unit includes an engagement surface for contacting bone, and a mating surface. The mating surface forms at least one first undercut. The bone graft also includes one or more cortical bone portions forming a second unit. The second unit includes an engagement surface for contacting bone, and a mating surface. The mating surface forms either at least one second undercut, or at least one connector. In the former, at least one connector is received in each of the first and second undercuts to interconnect the first and second units. In the latter, the at least one connector of the second unit is received in the first undercut of the first unit to interconnect the first unit and second unit.

The present invention relates to a stabilized ankle prosthesis configured for use in patients with compromised soft tissue in the ankle. The prosthesis of the present invention is a two-component design comprising a stabilizing lip configured to constrain movement in the general direction of compromised soft tissue.

A method for designing and making a rig that includes a hollow tubular shell, and the interior of said shell defines at least first and second intersecting cylinders. The method includes identifying a damage area, presenting a 3D view of identified damage area, generating a 3D model of a virtual rig, and producing a rig according to the virtually created rig. The generating includes virtually placing in 3D view a shape covering or partly covering damage area, and creating, based on the position of the virtually placed shape, a position of hollow tubular rig shell of the virtual rig; and selecting the at least first and second intersecting cylinders of the virtual rig, based on the size and form of the virtually placed shape, and creating a positioning surface of the virtual rig which is a bone and/or cartilage-engaging end of hollow tubular shell.

Sacro-iliac joint stabilizing implants adapted for implanting across a SI joint from a dorsal approach. Methods of, and delivery tools adapted for implanting sacro-iliac joint stabilizing implants across a SI joint from a dorsal approach.

A total elbow replacement prosthesis (100) comprising: a radioulnar component (20) having an ulnar bearing surface (22) and an anconeal process bearing surface (24), a humeral component (40) having a trochlear bearing surface (42), the trochlear bearing surface being configured for bearing against the ulnar bearing surface, the humeral component further comprising an olecranon aperture boundary bearing surface (50), the anconeal process bearing surface being configured for bearing against the olecranon aperture boundary bearing surface.

The present invention relates to a stabilized ankle prosthesis configured for use in patients with compromised soft tissue in the ankle. The prosthesis of the present invention is a two-component design comprising a stabilizing lip configured to constrain movement in the general direction of compromised soft tissue.