Aspects of the present disclosure relate generally to preparing models of three-dimensional structures. In particular, a model of a three-dimensional structure constructed of porous geometries is prepared. A component file including a porous CAD volume having a boundary is prepared. A space including the porous CAD volume is populated with unit cells. The unit cells are populated with porous geometries having a plurality of struts having nodes on each end. The space is populated with at least one elongated fixation element extending beyond the boundary to produce an interlocking feature enabling assembly or engagement with a mating structure.

Improved systems, methods, and devices for performing joint arthroplasty, including patient-adapted implant components and tools, as well as intraoperative measurement and optimization of joint kinematics are disclosed herein.

A component including: a body having one or more surfaces with a contour formed to be substantially complementary to an anatomical surface of a specific patient; the body adapted to securably engage with a component-engaging part to form at least part of an implantable medical device, wherein: the one or more surfaces are substantially configured to evenly engage with the anatomical surface of the specific patient when the component is secured to the component-engaging part and the medical device implanted in the patient; and the body is at least in part manufactured by additive manufacturing.

Spinal interbody fusion implants for use in posterior lumbar interbody fusions (PLIF), anterior lumbar interbody fusions (ALIF), transforaminal lumbar interbody fusions (TLIF) and transpsoas interbody fusions (DLIF), each of the implants including a 3-D printed titanium frame having meshed sidewalls, open top and bottom faces and a selectively closeable back plate for enclosing a posterior end of the frame. A machined, acid treated allograft bone graft is contained within the frame, the bone graft having a window for containing a biomaterial, anti-migration teeth and a ridge configured to mate with a slot within the frame for locking the graft in the frame.

A method for designing a patient-specific implant includes obtaining image data of a region of interest of the spine of a patient, measuring one or more geometric characteristic of the region of interest from the image data, comparing a measurement obtained for at least one of the one or more geometric characteristics to a mathematical rule associated with the particular geometric characteristic, and generating three-dimensional implant geometry data if the measurement of the at least one of the one or more geometric characteristics conforms with the associated mathematical rule, the implant geometry data configured to guide an additive manufacturing operation.

Disclosed is a device for assisting in the placement of a trapeziometacarpal prosthesis including a cup to be fixed in the trapezium of a patient and a stem to be fixed in the patient's first metacarpal. The device includes a first guide to be interposed between the trapezium and the first metacarpal, the first guide including a first body having a first surface to be positioned on the articular surface of the trapezium, the first surface congruent with the articular surface of the trapezium and a second surface to face the articular surface of the first metacarpal before resection, the second surface preferably being congruent with the articular surface of the first metacarpal so as to be positionable on the articular surface of the first metacarpal. The first guide also includes locating members carried by the first body and arranged to define resection lines for the first metacarpal.

Methods, apparatuses, and systems for performing robotic joint arthroscopic surgery are disclosed. The disclosed systems use a surgical robot to perform robotic joint arthroscopic surgery for soft tissue. The disclosed systems enable a surgeon or physician to perform a virtual surgical procedure in a virtual environment, storing robotic movements, workflow objects, user inputs, or a description of tools used. The surgical robot filters the stored data to determine a surgical workflow from the stored data. The surgical robot displays information describing a surgical step in the surgical workflow, enabling the surgeon or physician to optionally adjust the surgical workflow. The surgical robot stores the optional adjustments and performs the surgical procedure on a patient by executing surgical actions of the surgical workflow.

A method for optimizing a knee arthroplasty surgical procedure includes receiving pre-operative data comprising (i) anatomical measurements of the patient, (ii) soft tissue measurements of the patient's anatomy, and (iii) implant parameters identifying an implant to be used in the knee arthroplasty surgical procedure. An equation set is selected from a plurality of pre-generated equation sets based on the pre-operative data. During the knee arthroplasty surgical procedure, patient-specific kinetic and kinematic response values are generated and displayed using an optimization process. The optimization process includes collecting intraoperative data from one or more surgical tools of a computer-assisted surgical system, and using the intraoperative data and the pre-operative data to solve the equation set, thereby yielding the patient-specific kinetic and kinematic response values. A visualization is then provided of the patient-specific kinetic and kinematic response values on the displays.

A system for customizing an implant is provided. The system includes a processor configured to: i) obtain one or more medical image stacks of a joint; ii) obtain a three-dimensional image representation of the joint based on at least one of said medical image stacks; iii) determine damage to the joint by analyzing said medical image stacks; iv) select an implant template from a predefined set of implant templates having predetermined types and sizes; v) generate a 3D model, in which the marked damage is visualized together with the selected implant template in a proposed position; vi) display the 3D model; vii) receive an approval for said selected implant template in said proposed position; and viii) determine the final shape and dimensions of a customized implant based on said selected implant template and said proposed position.

Computer implemented methods of producing a bone graft are provided. These methods include obtaining a 3-D image of an intended bone graft site; generating a 3-D digital model of the bone graft based on the 3-D image of the intended bone graft site, the 3-D digital model of the bone graft being configured to fit within a 3-D digital model of the intended bone graft site; storing the 3-D digital model on a database coupled to a processor, the processor having instructions for retrieving the stored 3-D digital model of the bone graft and for combining a carrier material with, in or on a bone material based on the stored 3-D digital model and for instructing a 3-D printer to produce the bone graft. A layered 3-D printed bone graft prepared by the computer implemented method is also provided.