Abstract: Some examples are directed to methods, systems, and related tools for calibrating a unique fiducial to a surgical instrument with which it is to be physically associated or on which it is to be marked.

Abstract: An implant delivery device may include a handle, an elongate shaft extending distally from the handle, and a support frame coupled to a distal end of the shaft. The shaft includes a lumen extending along an entire length of the shaft. The lumen opens to a proximal end of the handle and is configured to receive a bone anchor insertion device having a bone anchor thereon. A medical device system includes the implant delivery device and a bone anchor insertion device advanceable through the lumen of the shaft to secure an implant coupled to the support frame to a bone. A method may include advancing the implant to a treatment site with the implant delivery device, deploying the implant with the support frame, and advancing the bone anchor through the shaft to secure the implant to bone while the support frame remains coupled to the shaft and the implant.

Abstract: Disclosed are systems and methods for a computerized framework that provides novel mechanisms for determining the automatic placement of a reference grid and an anatomical reference frame (ARF) of a bone. The disclosed framework is operational for the enablement of computerized mechanisms that, based on a three-dimensional (3D) model of a distal femur, can determine, provide and/or display the anatomically correct positions of femoral tunnels and/or other forms of surgical landmarks surgeons rely on for anterior cruciate ligament (ACL) procedures. The disclosed framework is also operational for the enablement of computerized mechanisms that, based on a three-dimensional (3D) model of a proximal tibia, can determine, provide and/or display the anatomically correct positions of tibial tunnels and/or other forms of surgical landmarks surgeons rely on for ACL procedures.

Abstract: An impactor and methods of operation of an impactor. The impactor includes an electromagnetic component that has a stationary electromagnetic housing and a moving magnet actuator, a striker, and one or more strike plates. The striker is coupled to an object. The stationary electromagnetic housing includes a coil that receives an electric current. The moving magnet actuator includes one or more magnets. The magnets generate a high potential magnetic field that interacts with the electric current applied to the coil disposed within the stationary electromagnetic housing and trigger translation movement of the moving magnet actuator. The electromagnetic field, generated as a result of application of the electric current to the coil, forces the moving magnet actuator to translate. Translation of the moving magnet actuator causes the moving magnet actuator to strike at least one of the strike plates to thereby translate the striker.

Abstract: A bone cutting device, such as a burr or saw blade, is irrigated to cool not only the bone cutting device itself, but also the bone of the subject on which a bone resection procedure is being performed. The bone cutting device can have one or more (e.g., a plurality of) internal flow channels that eject a cooling medium (e.g., water or an inert gas) from the bone cutting device. This emission of the cooling medium can not only flush bone chips from the resection site, thereby reducing frictional heating of the bone cutting device, but can also provide internal cooling to the bone cutting device while flowing through the one or more internal flow channels and also can cool the surface of the bone via conductive heat transfer (e.g., by the flow stream of the cooling medium impinging on the bone surface).

Abstract: A combination medical device for removing and treating tissue in a patient is disclosed. The device includes a reusable handle and a blade selectively connectable to the handle. The blade includes an outer sleeve having a lumen with an inner shaft disposed therein. The inner shaft may be coupled to a motor drive unit disposed within the handle and may rotate so as to mechanically cut tissue as the inner shaft rotates. The outer sleeve includes at least one electrode for electrosurgically treating tissue. The reusable handle includes at least one control switch for controlling a parameter associated with the rotation of the inner shaft. The blade also may include a switch assembly in electrical communication with the at least one electrode, the switch assembly including attachment means for selective attachment of the switch assembly to the reusable handle.

Abstract: A method of generating a custom three-dimensional (3D) model of a patient bone from one or more 2D images is disclosed. The method includes obtaining a 2D image of a bone, optionally of a joint, and identifying a 3D bone template for a candidate or representative bone from a pre-aligned library of representative bones. The method further includes repositioning one or more views of the 3D model or 2D images (e.g., with respect to rotation angle or caudal angle). In an iterative process, another 3D bone model for another candidate bone can be identified based on the repositioning until an accuracy threshold is satisfied. When the accuracy threshold is satisfied, surface region(s) of the current 3D bone model can then be modified to generate the resulting 3D model for the patient bone. The process can then be repeated for other bone(s) associated with the joint of the patient.

Abstract: Disclosed are systems and methods for a computerized framework that provides novel mechanisms for determining the automatic placement of a reference grid and an anatomical reference frame (ARF) of a bone. The disclosed framework is operational for the enablement of computerized mechanisms that, based on a three-dimensional (3D) model of a distal femur, can determine, provide and/or display the anatomically correct positions of femoral tunnels and/or other forms of surgical landmarks surgeons rely on for anterior cruciate ligament (ACL) procedures. The disclosed framework is also operational for the enablement of computerized mechanisms that, based on a three-dimensional (3D) model of a proximal tibia, can determine, provide and/or display the anatomically correct positions of tibial tunnels and/or other forms of surgical landmarks surgeons rely on for ACL procedures.

Abstract: A tissue repair assembly is disclosed, including a soft anchor body and at least a first suture operably coupled to the anchor body. Tensioning on first and/or second ends of first suture may deploy the anchor body to a second configuration, in which the anchor body is axially compressed and radially extended. The tissue repair assembly may also include a means to cinch around a portion of a first and/or second suture and knotlessly lock the tissue repair assembly. Some embodiments may include a pre-formed knot. In some embodiments, the preformed knot may be a nail knot, provided wrapped around an insertion instrument and configured to receive and cinch around a suture extending therethrough.

Abstract: A system for tracking resection planes during a surgical procedure includes a cutting block and a position tracker. The cutting block is configured to be mounted on an anterior surface of a bone during the surgical procedure. The cutting block comprises at least one slot configured to position a resection tool during the surgical procedure. The position tracker is configured to be directly attached to the cutting block after the cutting block is mounted on the anterior surface to allow positional tracking of the cutting block by a tracking device during the surgical procedure.

Abstract: A suture transport system is disclosure for placing a flexible member along a tunnel, the system including a means of transporting a flexible member along a tunnel from a first opening in the tunnel through to a second opening at an opposite end of the tunnel, such that the flexible member extends from both the first and second opening. The system also includes a means of capturing a portion of the flexible member at the second opening, to inhibit the flexible member from retracting into the tunnel second opening. The means of capturing includes an aperture for capturing the portion of the flexible member.

Abstract: 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.

Abstract: A harvesting assembly for harvesting a tissue graft from surrounding tissue is disclosed including a guide. The guide includes a means for fixedly engaging with an anterior surface of the tendon. The guide also includes a means of guiding a cutting blade along a preferred trajectory into and along a length of the tendon. The guide also includes a means of guiding a truncating blade along a preferred trajectory across a width of tendon. The cutting blade may include two parallel blades for forming lateral sides of the tendon graft simultaneously. Each of the two parallel blades may define a leading edge that extends along at least a 90 degree arc that is equidistant from a stop on the cutting blade. The stop in combination with the guide may limit a cut depth into the tendon for a range of cutting blade handle elevation angles.

Abstract: A glenoid implant (100) is disclosed. The glenoid implant including a plurality of bone fixation pegs (130, 140, 150) extending from a back or medial surface thereof. The bone fixation pegs including one or more features in the form of fins (132) and grooves (160) arranged and configured to provide increased fixation to the patient's bone thus minimizing the likelihood of the implant loosening.

Abstract: A total ankle replacement prosthesis may comprise a tibial implant, a talar implant, and an intermediate implant. The intermediate implant may fixedly attach to the tibial implant and may articulate with respect to the talar implant. The intermediate implant may have unequal front and back angular extent, so as to discourage a particular direction of subluxation, and a kit may be provided containing various such intermediate implants. Various features may be provided in regard to dovetails, fins, recesses, the placement of fins and pegs, and the shape of the perimeter of the tibial implant. Recesses may allow a surgical blade to slice a latch off of an already-installed intermediate implant, in order to allow its removal from the tibial implant.

Abstract: Methods and systems for treating osteochondral defects (OCDs) are disclosed. The methods include collecting surface data of a joint using image-free methods, generating a three-dimensional (3D) healthy bone model based on the surface data and a database of healthy bone anatomies, defining a boundary of the OCD on the joint, and generating a 3D implant model based on the 3D healthy bone model and the boundary. The method may also include manufacturing an implant based on the 3D implant model, generating an implantation plan, resecting the joint according to the implantation plan, and placing the implant into the resected cavity. The 3D implant model may include a first and second porous layer separated by a nonporous layer. A polymer material is overmolded onto the second porous layer and treated to exhibit properties that mimic cartilage, while the first porous layer allows the implant to fuse to patient bone.

Abstract: Medical devices, such as orthopedic medical implants, and corresponding methods of applying a porous coating to the medical device are disclosed. In some embodiments, a medical device may include a plurality of texture features extending from a base surface, and a porous coating applied into and atop of the plurality of texture features and the base surface. The porous coating may include a plurality of coating structures, wherein a first coating structure group of the plurality of coating structures has a first size, wherein a second coating structure group of the plurality of coating structures has a second size, and wherein the first size is different than the second size.

Abstract: An intramedullary (“IM”) nail and surgical technique or method. The IM nail includes a body including an opening for receiving a lag screw and a compression screw. The body further including one or more screw openings for receiving a bone screw. The surgical technique enables a surgeon to selectively prevent or allow movement (e.g., medialization) of the IM nail within the patient's intramedullary canal. The position of the IM nail can be selectively secured within the patient's intramedullary canal depending on surgeon preference and/or depending on the fracture pattern being treated. In use, the surgeon can elect to either secure the position of the IM nail within the patient's intramedullary canal thereby preventing movement (e.g., medialization) of the IM nail within the patient's intramedullary canal, or the surgeon can allow the IM nail to move (e.g., medialize) within the patient's intramedullary canal.

Abstract: An augmented reality system and method for assisting surgical staff during an arthroplasty procedure includes a camera system configured to capture images of a surgical scene and a processor configured to determine from the images location and orientation information about one or more patient anatomical features and to maintain a three-dimensional model of these anatomical features within the surgical scene. The system models the field-of-view of augmented reality headsets worn by surgical staff, and maps this to the anatomical model, allowing the system to overlay relevant information to the user about particular anatomical features in the surgical plan.

Abstract: A trial guide for temporary placement on the distal end of the femur during a knee revision includes instrumented components that allow a surgeon to determine distal and posterior extension gaps for balancing the revised implant, and an adjustable stem component that allows the surgeon to translate a trial stem and rotate a selected offset coupling for the trial stem to ensure proper trial placement before the revision procedure. Fiducial markers can be affixed to the body or components of the trial guide to allow a surgical system to map the trial guide onto a reference frame for the surgery, such as the femur reference frame, thereby allowing the surgical system to update the surgical plan and assist the surgeon in implementing the plan for a revision the arthroplasty.