Abstract: A surgical planning system may be configured to predict a relationship between two or more bones, including adjoining and/or non-adjoining bones of a patient. The system may be configured to select a representative bone model associated with a bone in response to comparing the representative bone model to a patient bone model associated with the bone of a patient. The system may be configured to determine at least one patient characteristic based on a relationship of the representative and/or patient bone model to another bone model, which may be associated with an adjoining or non-adjoining bone. A method of planning a surgical procedure is also disclosed.

Abstract: Imagery of patient anatomy may be captured with an imaging device. The imaging device may be configured to capture only a portion of the patient anatomy, including one or more bones of the patient. A surgical planning system may be configured to predict or otherwise determine a geometry of the omitted portions of the anatomy based on a comparison of the captured anatomy to the anatomy of another patient. The determined geometry of the omitted portions may be utilized to plan a surgical procedure for restoring functionality to the bone and/or an associated joint. Surgical planning methods for determining omitted portions of patient anatomy are also disclosed.

Abstract: Bone fractures may be associated with one or more fragments separated from a bone. The fractured bone may be captured with an imaging device. The disclosed systems may be configured to predict or otherwise determine a position of the fragments prior to occurrence of the bone fracture. The determined position may be utilized to position and secure the fragments during a surgical procedure. Methods for determining the pre-fracture position of bone fragments are also disclosed.

Abstract: Improved surgical planning systems and methods are provided for planning orthopaedic procedures, including pre-operatively, intra-operatively, and/or post-operatively to create, edit, execute, and/or review surgical plans. The surgical planning systems and methods may be utilized for planning and implementing orthopaedic procedures to restore functionality to a joint. In some embodiments, range of motion simulations may be performed on a joint associated with a plurality of anatomical makeup classifications, and range of motion data derived from the range of motion simulations may be stored within a storage system of the surgical planning system.

Abstract: This disclosure describes a surgical implant device comprising a body that includes a porous material forming at least a portion of the body, wherein the porous material is configured to promote bone ingrowth and is porous to a fluid. In addition, one or more fluid channels are formed in the body. The one or more fluid channels are arranged to define a fluidic path that exits into the porous material.

Abstract: A method comprises determining, by a surgical assistance system, a potential insertion point on a surface of a bone of a patient; and presenting, by a Mixed Reality (MR) visualization device of the surgical assistance system, an MR scene that includes a virtual trajectory guide, wherein: the virtual trajectory guide comprises an elliptical surface, and for each location of a plurality of locations on the elliptical surface: the location corresponds to a potential insertion axis that passes through the location and the potential insertion point on the surface of the bone, and the location is visually distinguished based on a quality of a portion of the bone along the potential insertion axis corresponding to the location.

Abstract: Techniques are described for determining a pre-morbid shape of an anatomical object. A method includes receiving first image data of a first anatomical structure and second image data of a second anatomical structure. The first and second anatomical structures are anatomically related. The method includes determining a first shape model based on the first image data and a joint statistical shape model (SSM). The method includes determining a second shape model based on the first shape model, the first image data, and the second image data, the second shape model including a second estimated shape of the first anatomical structure and a second estimated shape for the second anatomical structure. The method includes generating anatomical information indicative of the pre-morbid shape of at least the second anatomical structure based on the second shape model.

Abstract: An example method includes registering, via a visualization device, a virtual model of a portion of an anatomy of an ankle of a patient to a corresponding portion of the anatomy of the ankle viewable via the visualization device, the virtual model obtained from a virtual surgical plan for an ankle arthroplasty procedure to attach a prosthetic to the anatomy. The example method also comprises displaying, via the visualization device and overlaid on the portion of the anatomy, a virtual guide that guides at least one of preparation of the anatomy for attachment of the prosthetic or attachment of the prosthetic to the anatomy.

Abstract: Techniques are described for bone-graft harvesting in orthopedic surgery. Processing circuitry may obtain a virtual model of a bone graft to be harvested from a donor bone, wherein the virtual model of the bone graft specifies a volume of the donor bone to be harvested as the bone graft; and output for display, via a visualization device, a graphical representation of the specified volume to be harvested relative to a portion of the donor bone viewable via the visualization device.

Abstract: 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.

Abstract: A surgical assistance system may obtain a pre-revision model of a bone of a patient. The pre-revision model of the bone represents a pre-revision state of the bone after a prior orthopedic surgery on the bone. In this example, an orthopedic prosthesis was attached to the bone during the prior orthopedic surgery. Additionally, the surgical assistance system may obtain intra-revision imaging data of the bone. The intra-revision imaging data represents an intra-revision state of the bone during the orthopedic revision surgery after removal of the orthopedic prosthesis from the bone. The surgical assistance system may determine, based on the intra revision imaging data, damaged and intact parts of the bone. The surgical assistance system may then generate a second intra-revision model of the bone by modifying the pre-revision model of the bone to exclude damaged parts of the bone.

Abstract: 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.

Abstract: An example physical tracking tool includes a main body defining a channel configured to receive a tool, the channel having a longitudinal axis; and one or more physical tracking features attached to the main body, each physical tracking feature comprising a plurality of planar faces, each planar face of the plurality of planar faces including different a graphical pattern of a plurality of graphical patterns.

Abstract: An example physical targeting tool includes a main body defining a channel configured to receive a tool, the channel having a longitudinal axis; a first physical targeting feature attached to the main body; and a second physical targeting feature attached to the main body, wherein the first physical targeting feature and the second physical targeting feature are displaced along the longitudinal axis of the channel.

Abstract: A surgical system can be configured to obtain image data of a joint that comprises at least a portion of a humerus; segment the image data to determine a shape for a diaphysis of the humerus; based on the determined shape of the diaphysis, determine an estimated pre-morbid shape of the humerus; based on the estimated shape of the humerus, identify one or more bone fragments in the image data; and based on the identified bone fragments in the image data, generate an output.

Abstract: An example surgical pin configured to be installed in a bone of a patient includes a distal end; a shaft comprising a plurality of longitudinally spaced visually marked regions separated by non-marked regions; and a proximal end.

Abstract: An example method includes determining, by the one or more processors, an actual orientation of a surgical pin as installed in a bone of a patient; obtaining, by the one or more processors, a planned orientation of the surgical pin; determining, by the one or more processors and based on a comparison between the actual orientation of the surgical pin and the planned orientation of the surgical pin, whether the surgical pin was installed as planned; and responsive to determining that the surgical pin was not installed as planned, outputting, via a visualization device, virtual guidance to assist a surgeon in correcting the installation of the surgical pin.

Abstract: An example method includes registering, via a visualization device, a virtual model of a portion of an anatomy of an ankle of a patient to a corresponding portion of the anatomy of the ankle viewable via the visualization device, the virtual model obtained from a virtual surgical plan for an ankle arthroplasty procedure to attach a prosthetic to the anatomy. The example method also comprises displaying, via the visualization device and overlaid on the portion of the anatomy, a virtual guide that guides at least one of preparation of the anatomy for attachment of the prosthetic or attachment of the prosthetic to the anatomy.

Abstract: An example method includes displaying, via a visualization device and overlaid on a portion of an anatomy of a patient viewable via the visualization device, a virtual model of the portion of the anatomy obtained from a virtual surgical plan for an orthopedic joint repair surgical procedure to attach a prosthetic to the anatomy; and displaying, via the visualization device and overlaid on the portion of the anatomy, a virtual guide that guides at least one of preparation of the anatomy for attachment of the prosthetic or attachment of the prosthetic to the anatomy.

Abstract: An example system for designing a patient matched implant for an orthopedic joint repair surgical procedure includes a memory configured to store a model of a bone of a patient; and processing circuitry. The processing circuitry may be configured to: obtain the model of the bone of the patient; obtain a template model of an implant; determine a shape of a surface of the implant; determine a volume between the shape of the surface of the implant and a surface of the bone defined by the model of the bone; generate, based on the determined volume and the template model, a patient matched implant model; and output a file representing the patient matched implant model.