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"Articular surface" refers to a surface of a structure that is coupled to, and may cooperate with, other structures of a joint of a human or animal to enable movement of structures of the joint. |
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"Tarso-metatarsal joint" or "TMT joint" refers to a joint of a patient between a metatarsal bone and one or more cuneiform/tarsal/cuboid bones. The TMT joint may also be referred to as a "Lis Franc" or "Lisfranc" joint after a French surgeon Lisfranc. |
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"Cut surface" refers to a surface of an object that is created or formed by the removal of one or more parts of the object that includes the original surface. Cut surfaces can be created using a variety of methods, tools, or apparatuses and may be formed using a variety of removal actions, including, but not limited to, fenestrating, drilling, abrading, cutting, sawing, chiseling, digging, scrapping, and the like. Tools and/or methods used for forming a cut surface can include manual, mechanical, motorized, hydraulic, automated, robotic, and the like. In certain embodiments, the cut surface(s) are planar. |
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"Orientation" refers to a direction, angle, position, condition, state, or configuration of a first object, component, part, apparatus, system, or assembly relative to another object, component, part, apparatus, system, assembly, reference point, reference axis, or reference plane. |
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As used herein, a "pivot axis" refers to an axis about which a structure pivots or rotates. |
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"Longitudinal axis" or “Long axis” refers to an axis of a structure, device, object, apparatus, or part thereof that extends from one end of a longest dimension to an opposite end. Typically, a longitudinal axis passes through a center of the structure, device, object, apparatus, or part thereof along the longitudinal axis. The center point used for the longitudinal axis may be a geometric center point and/or a mass center point. |
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"Mechanical axis" refers to an axis of a long bone such as a femur or tibia. The mechanical axis of a long bone is a straight line connecting the joint center points of the proximal and distal joint regions, whether in the frontal or sagittal plane. A mechanical axis can be useful in defining how the mechanical (weight, gait, flexion, extension, etc.) forces impact the morphology of the bone structure. A mechanical axis and anatomical axis can both help in the surgical planning in relation to deformed bones. (Search "axes of the long bones" on appropedia.com; Amit Dinanath Maurya, OpenSurgiSim (2021–2023). "Axes of the long bones - Mechanical and Anatomical". SELF. Modified. Accessed June 28, 2023.) |
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"Pivot arm" refers to a structure that extends from another structure. Often, a pivot arm has similar size, shape, dimensions, and/or orientation as an arm of a person or animal. A pivot arm is a structure about which the structure connected to the pivot arm pivots or rotates. In certain embodiments, an axis that runs through the center of a pivot arm is also a pivot axis and can be a fulcrum where the pivot arm is part of a lever. |
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As used herein, a “drive”, "drive feature", or "drive recess" refers to an apparatus, instrument, structure, member, device, component, system, or assembly structured, organized, configured, designed, arranged, or engineered to receive a torque and transfer that torque to a structure connected or coupled to the drive. At a minimum, a drive is a set of shaped cavities and/or protrusions on a structure that allows torque to be applied to the structure. Often, a drive includes a mating tool, known as a driver. For example, cavities and/or protrusions on a head of a screw are one kind of drive and an example of a corresponding mating tool is a screwdriver, that is used to turn the screw, the drive. Examples of a drive include but are not limited to screw drives such as slotted drives, cruciform drives, square drives, multiple square drives, internal polygon, internal hex drives, penta lobular sockets, hex lobular sockets, combination drives, external drives, tamper-resistant drives, and the like. (Search 'list of screw drives' on Wikipedia.com March 12, 2021. Modified. Accessed March 19, 2021.) |
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"Thread" or "threads" refers to a helical structure used to convert between rotational and linear movement or force. A thread is a ridge wrapped around a cylinder or cone in the form of a helix, with the ridge wrapped around the cylinder being called a straight thread and the ridge wrapped around the cone called a tapered thread. Straight threads or tapered threads are examples of external threads, also referred to as male threads. Threads that a correspond to male threads are referred to as female threads and are formed within the inside wall of a matching hole, passage, or opening of a nut or substrate or other structure. A thread used with a fastener may be referred to as a screw thread and can be a feature of a simple machine and also as a threaded fastener. The mechanical advantage of a threaded fastener depends on its lead, which is the linear distance the threaded fastener travels in one revolution. (Search 'screw thread' on Wikipedia.com July 17, 2022. Modified. Accessed Aug. 1, 2022.) |
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"Cutting tool" refers to any tool that can be used to cut or resect another object. In particular, a cutting tool can refer to a manual or power tool for cutting or resecting tissue of a patient. Examples of cutting tools include, but are not limited to, a burr, rotary cutting tools such as a burr, router bit, drill bit, an oscillating saw, a reciprocating saw, a grater saw, a drill, a drill bit, a mill bit, a router bit, a side-cutting burr, or the like. |
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As used herein, a "shaft" refers to a long narrow structure, device, component, member, system, or assembly that is structured, organized, configured, designed, arranged, or engineered to support and/or connect a structure, device, component, member, system, connected to each end of the shaft. Typically, a shaft is configured to provide rigid support and integrity in view of a variety of forces including tensile force, compression force, torsion force, shear force, and the like. In addition, a shaft can be configured to provide rigid structural support and integrity in view of a loads including axial loads, torsional loads, transverse loads, and the like. A shaft may be oriented and function in a variety of orientations including vertical, horizontal, or any orientation between these and in two or three dimensions. A shaft may be made from a variety of materials including, but not limited to, metal, plastic, ceramic, wood, fiberglass, acrylic, carbon, biocompatible materials, biodegradable materials or the like. A shaft may be formed of any biocompatible materials, including but not limited to biocompatible metals such as Titanium, Titanium alloys, stainless steel, carbon fiber, combinations of carbon fiber and a metallic alloy, stainless steel alloys, cobalt-chromium steel alloys, nickel-titanium alloys, shape memory alloys such as Nitinol, biocompatible ceramics, and biocompatible polymers such as Polyether ether ketone (PEEK) or a polylactide polymer (e.g. PLLA) and/or others, or any combination of these materials. |
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"Head" refers to a device, apparatus, member, component, system, assembly, module, subsystem, circuit, or structure, organized, configured, designed, arranged, or engineered to have a prominent role in a particular feature, function, operation, process, method, and/or procedure for a device, apparatus, member, component, system, assembly, module, subsystem, circuit, or structure the includes, is coupled to, or interfaces with the head. In certain embodiments, the head may sit at the top or in another prominent position when interfacing with and/or coupled to a device, apparatus, member, component, system, assembly, module, subsystem, circuit, or structure. |
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As used herein, an "interface," "user interface," or "engagement interface" refers to an area, a boundary, or a place at which two separate and/or independent structures, members, apparatus, assemblies, components, and/or systems join, connect, are coupled, or meet and act on, or communicate, mechanically and/or electronically, with each other. In certain embodiments, "interface" may refer to a surface forming a common boundary of two bodies, spaces, structures, members, apparatus, assemblies, components, or phases. (search "interface" on Merriam-Webster.com. Merriam-Webster, 2021. Web. 15 Nov. 2021. Modified.) In certain embodiments, the term interface may be used with an adjective that identifies a type or function for the interface. For example, an engagement or coupling interface may refer to one or more structures that interact, connect, or couple to mechanically join or connect two separate structures, each connected to a side of the interface. In another example, a user interface may refer to one or more mechanical, electrical, or electromechanical structures that interact with or enable a user to provide user input, instructions, input signals, data, or data values and receive output, output data, or feedback. |
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"Cut surface" or "cut face" refers to a surface of an object that is created or formed by the removal of one or more parts of the object that includes the original surface. Cut surfaces or cut faces can be created using a variety of methods, tools, or apparatuses and may be formed using a variety of removal actions, including, but not limited to, fenestrating, drilling, abrading, cutting, sawing, chiseling, digging, scrapping, and the like. Tools and/or methods used for forming a cut surface or cut face can include manual, mechanical, motorized, hydraulic, automated, robotic, and the like. |
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The present disclosure discloses surgical systems and methods by which a bone condition, that can include a deformity, may be corrected or otherwise addressed. Known methods of addressing bone conditions are often limited to a finite range of discretely sized instruments. A patient with an unusual condition, or anatomy that falls between instrument sizes, may not be readily treated with such systems. |
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The word "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated. |
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Standard medical planes of reference and descriptive terminology are employed in this disclosure. While these terms are commonly used to refer to the human body, certain terms are applicable to physical objects in general. A standard system of three mutually perpendicular reference planes is employed. A sagittal plane divides a body into right and left portions. A coronal plane divides a body into anterior and posterior portions. A transverse plane divides a body into superior and inferior portions. A mid-sagittal, mid-coronal, or mid-transverse plane divides a body into equal portions, which may be bilaterally symmetric. The intersection of the sagittal and coronal planes defines a superior-inferior or cephalad-caudal axis. The intersection of the sagittal and transverse planes defines an anterior-posterior axis. The intersection of the coronal and transverse planes defines a medial-lateral axis. The superior-inferior or cephalad-caudal axis, the anterior-posterior axis, and the medial-lateral axis are mutually perpendicular. |
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Anterior means toward the front of a body. Posterior means toward the back of a body. Superior or cephalad means toward the head. Inferior or caudal means toward the feet or tail. Medial means toward the midline of a body, particularly toward a plane of bilateral symmetry of the body. Lateral means away from the midline of a body or away from a plane of bilateral symmetry of the body. Axial means toward a central axis of a body. Abaxial means away from a central axis of a body. Ipsilateral means on the same side of the body. Contralateral means on the opposite side of the body from the side which has a particular condition or structure. Proximal means toward the trunk of the body. Proximal may also mean toward a user, viewer, or operator. Distal means away from the trunk. Distal may also mean away from a user, viewer, or operator. Dorsal means toward the top of the foot or other body structure. Plantar means toward the sole of the foot or toward the bottom of the body structure. |
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Antegrade means forward moving from a proximal location/position to a distal location/position or moving in a forward direction. Retrograde means backward moving from a distal location/position to a proximal location/position or moving in a backwards direction. Sagittal refers to a midline of a patient’s anatomy, which divides the body into left or right halves. The sagittal plane may be in the center of the body, splitting it into two halves. Prone means a body of a person lying face down. Supine means a body of a person lying face up. |
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