Targeting guide with a radiopaque marker to facilitate positioning a bone plate on bone
DCFirst Claim
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1. A bone fixation system, comprising:
- a bone plate including an outer surface region and defining a long axis and a plane extending along the long axis and parallel to the outer surface region of the bone plate, the bone plate also defining a plurality of apertures for receiving fasteners that secure the bone plate to bone; and
a guide block attached or attachable to the bone plate with the guide block above the outer surface region of the bone plate such that openings of the guide block are adjacent to and in coaxial alignment with apertures of the bone plate, the guide block including a radiolucent body that defines the openings and also including at least one radiopaque marker affixed to the radiolucent body and elongated transverse to the plane.
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Abstract
Bone fixation system, including methods, apparatus, and kits, and comprising a bone plate and at least one instrument that attaches to the bone plate and provides at least one radiopaque region to facilitate positioning the bone plate on bone visualized by radiographic imaging. The instrument may be a handle assembly and/or a targeting guide.
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Citations
19 Claims
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1. A bone fixation system, comprising:
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a bone plate including an outer surface region and defining a long axis and a plane extending along the long axis and parallel to the outer surface region of the bone plate, the bone plate also defining a plurality of apertures for receiving fasteners that secure the bone plate to bone; and a guide block attached or attachable to the bone plate with the guide block above the outer surface region of the bone plate such that openings of the guide block are adjacent to and in coaxial alignment with apertures of the bone plate, the guide block including a radiolucent body that defines the openings and also including at least one radiopaque marker affixed to the radiolucent body and elongated transverse to the plane. - View Dependent Claims (2, 3, 4, 5)
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6. A method of bone fixation, comprising:
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disposing a bone plate on a bone, the bone plate including an outer surface region and defining a plurality of apertures; generating at least one radiographic image of the bone, with the bone plate disposed on the bone and attached to a guide block, with the guide block over the outer surface region such that openings of the guide block are adjacent to and in coaxial alignment with the apertures of the bone plate, the guide block including a radiolucent body that defines the openings and at least one elongated, radiopaque marker disposed in and affixed to the radiolucent body; adjusting a position of the bone plate on the bone based on a position of the at least one marker with respect to the bone in the radiographic image; and securing the bone plate to the bone, wherein the bone plate defines a plane, wherein the at least one radiographic image is generated using a beam of radiation having a beam axis oriented at least generally orthogonal to the plane, and wherein at least a majority of the marker is disposed inside a perimeter of the bone plate in the at least one radiographic image. - View Dependent Claims (7, 8, 9)
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10. A bone fixation system, comprising:
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a bone plate including an outer surface region and defining a plurality of apertures for receiving fasteners that secure the bone plate to bone; and a guide block attached or attachable to the bone plate with the guide block above the outer surface region of the bone plate such that openings of the guide block are adjacent to and in coaxial alignment with apertures of the bone plate, the guide block including a radiolucent body that defines the openings and also including at least one radiopaque marker affixed to the radiolucent body and elongated parallel to a through-axis defined by one of the openings. - View Dependent Claims (11, 12, 13, 14)
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15. A bone fixation system, comprising:
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a bone plate including an outer surface region and defining a plurality of apertures for receiving fasteners that secure the bone plate to bone; and a guide block having an upper surface region opposite a lower surface region and a plurality of openings extending from the upper surface region to the lower surface region, the guide block being attached or attachable to the bone plate with the lower surface region of the guide block adjacent the outer surface region of the bone plate and such that the openings of the guide block are in coaxial alignment with apertures of the bone plate, the guide block including a radiolucent body that defines the openings and also including at least one elongated, radiopaque marker affixed to the radiolucent body, the marker having an upper end that is closer to the upper surface region and opposite a lower end that is closer to the lower surface region. - View Dependent Claims (16, 17, 18, 19)
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Specification