This disclosure relates to an intraoperative guidance system. The guidance system comprises: an X-ray imaging device to create a two-dimensional digital image of a joint and an implant component; and a computer system configured to: store an initial three-dimensional model of the joint and the implant component; receive two or more two-dimensional digital images of the joint and the implant component; create a digital three-dimensional model of the joint and the implant component based on the two or more two-dimensional digital images; perform registration between the digital three-dimensional model and the initial three-dimensional model to determine a placement of the implant component; determine an intraoperative simulated performance metric by simulating movement of the digital three-dimensional model based on the placement; and provide an indication to a surgeon of the intraoperative simulated performance metric as an assessment of a current placement of the implant component.

This disclosure relates to systems for assisting surgeons in implanting joint replacement implant components. One aspect provides a system for assisting a surgeon in implanting a joint replacement implant component during a surgery of replacing a joint. The system comprises: an instrument for medullary canal preparation; a video camera to capture image data of the instrument; a computer system to: store a surgical plan; determine a pose of the instrument relative to the bone or the joint based on the image data from the video camera; assess the pose of the instrument against the surgical plan; and provide an indication to the surgeon of a clinical consequence of the pose in relation to the surgical plan.

Methods, apparatuses, and systems for robotic insertion of a screw, a rod, or another component of a surgical implant into a patient are disclosed. Synchronous insertion of screws is performed by multiple surgical robots or a single surgical robot having multiple arms and end effectors. The movements of each robotic arm are coordinated into position in preparation of the insertion of multiple surgical implant components at the same time or in the same surgical step. The insertion of the surgical implant components is performed while monitoring the insertion progress. The insertion is completed autonomously or in coordination with a surgeon.

Systems and methods of determining ligament attachment areas with respect to the location of a rotational axis of a joint implant are disclosed. Certain embodiments provide a computer-implemented method of evaluating placement of a joint implant with respect to a joint. The method includes determining one or more ligament attachment regions of the joint. The method further includes determining one or more rotational axes of the joint implant. The method further includes determining a position of the joint implant relative to the joint. The method further includes determining whether the one or more rotational axes align with the one or more ligament attachment regions when the joint implant is at the position. The method further includes displaying to a user an indication of whether the one or more rotational axes align with the one or more ligament attachment regions when the joint implant is at the position.

A system 100 or designing a surgical kit 700 for articulating surface repair in an anatomical joint of a patient is provided, which comprises at least one processor 120 configured to: determine damage to the anatomical joint; select, from a predefined set of implants having varying dimensions, the implant 300 that is the best fit for repairing the determined damage; select, from a predefined set of insert tools, the insert tool 720 corresponding to the selected implant 300; and design a contact surface 540 of a guide tool 500 to have a shape and contour that is designed to correspond to and to fit the contour of a predetermined area. This enables the use of standardized implants 300 that can be manufactured batch-wise, while still using an individualized guide tool 500 to ensure correct positioning of the implant 300. This helps ensuring that the implant will be positioned in the exact location of the determined damage.

A method of creating a mass-customized femoral bone base plate comprising: (i) establishing anatomical landmarks across a plurality of bone models of a statistical atlas; (ii) establishing instrument landmarks across the plurality of bone models of the statistical atlas; (iii) establishing definitions for a reference plane calculation across the plurality of bone models of the statistical atlas, where the reference plane represents a boundary of a prosthetic implant; (iv) establishing an attachment site for a mass-customized femoral bone base plate using the anatomical landmarks, the instrument landmarks, and the reference plane; and, (v) fabricating the mass-customized femoral bone base plate configured to be attached to a femur, where the attachment sites of the mass-customized femoral bone base plate are predetermined to avoid impingement with the prosthetic implant when implanted.

An example method includes obtaining, a virtual model of a portion of an anatomy of a patient obtained from a virtual surgical plan for an orthopedic joint repair surgical procedure to attach a prosthetic to the anatomy; identifying, based on data obtained by one or more sensors, positions of one or more physical markers positioned relative to the anatomy of the patient; and registering, based on the identified positions, the virtual model of the portion of the anatomy with a corresponding observed portion of the anatomy.

A number of improvements are provided relating to computer aided surgery. The improvement relates to both the methods used during computer aided surgery and the devices used during such procedures. Some of the improvement relate to controlling the selection of which data to display during a procedure and/or how the data is displayed to aid the surgeon. Other improvements relate to the structure of the tools used during a procedure and how the tools can be controlled automatically to improve the efficiency of the procedure. Still other improvements relate to methods of providing feedback during a procedure to improve either the efficiency or quality, or both, for a procedure.

A method for implantation of non-spherical, asymmetric implants is provided that includes devising a pre-surgical plan with pre-operative planning software operating on a computer to define at least one of shape, orientation, type, size, geometry, or placement of the non-spherical, asymmetric implant in an operative bone of a subject. A computer assisted surgical device is used to place the non-spherical, asymmetric implant. The implant is positioned within the bone by the computer assisted surgical device in accordance with pre-surgical plan. A non-spherical, asymmetric implant for insertion in a bone formed of separate stem, neck, and head portions and suitable for implantation by the method is also disclosed.

Robotic system and methods for robotic arthroplasty are provided. The robotic system includes a machining system and a guidance system. The guidance station tracks movement of one or more of various objects in the operating room, such as a surgical tool, a tibia of a patient, a talus of the patient, or a component of an implant. The guidance system tracks these objects for purposes of displaying their relative positions and orientations to the surgeon and, in some cases, for purposes of controlling movement of the surgical tool of the machining system relative to virtual cutting boundaries or other virtual objects associated with the tibia and talus to facilitate preparation of bone to receive an ankle implant system.