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Figure 41B is a front/lateral view of one example embodiment of a positioning guide 3810a that can be used in the osteotomy system 3800. |
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Figure 43A illustrates one embodiment of a fixation guide 3890. A first fastener 2010a and a second fastener 2010b are illustrated, with the patient bone omitted for clarity. The arm 3892 and one or more sleeves 3894 and receive guide pins 3896 are illustrated. |
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Figures 43A-43B illustrate views of a fixation guide 3890 of an osteotomy system, according to another embodiment. A cooperating positioning guide 3810 is omitted. The fixation guide 3890 includes an arm 3892 and one or more sleeves 3894 that are configured to receive guide pins 3896. |
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Figure 42H is a perspective view of one example embodiment of a positioning guide 3810. |
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Figure 42F is a dorsal/superior side view of one example embodiment of a positioning guide 3810b that can be used in the osteotomy system 3800. Figure 42G is a plantar/inferior side view of one example embodiment of a positioning guide 3810b that can be used in the osteotomy system 3800. |
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Figure 42D is a posterior/right side view of one example embodiment of a positioning guide 3810b that can be used in the osteotomy system 3800. Figure 42E is an anterior/left side view (e.g., anterior side 4122) of one example embodiment of a positioning guide 3810b that can be used in the osteotomy system 3800. |
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Figure 42C is a rear/medial view of one example embodiment of a positioning guide 3810b that can be used in the osteotomy system 3800. Figure 42C illustrates a bone engagement surface 4210 that may be patient-specific and can be used to register the positioning guide 3810b to a bone of a patient. Advantageously, the bone engagement surface 4210 can be generated based at least in part on a bone model of a bone of a patient. |
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Figure 42B is a front/lateral view of one example embodiment of a positioning guide 3810b that can be used in the osteotomy system 3800. |
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Figure 42A is a perspective view of one example embodiment of a positioning guide 3810b that can be used in the osteotomy system 3800. |
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Advantageously, whether or not the positioning guide 3810a includes an offset feature 4208 and/or a size (offset distance 4226) for an offset feature 4208 may be a patient-specific aspect. The offset distance 4226 may determine how much translation is provided between two bone fragments. In one embodiment, the offset distance 4226 can range from about 0 millimeters (i.e., no translation) to about 10 millimeters. Advantageously, the magnitude of the offset distance 4226 can be set using a model of one or more bones of the patient and/or a model of the positioning guide 3810b. In this manner, the offset feature 4208 and/or the offset distance 4226 can be a patient-specific feature that can be defined based, at least in part, on a model of a bone of a patient. A surgeon, or other user, can define the offset distance 4226 based on a desired about of translation. |
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In the illustrated embodiment, the positioning guide 3810b may include an offset feature 4208 in which the offset is nonzero. Alternatively, or in addition, the positioning guide 3810a may not include an offset feature 4108. Where a positioning guide 3810b has an offset feature 4208 that is nonzero, the bone engagement surface 4210 may include more than one section, such as a bone engagement surface 4210a and a bone engagement surface 4210b. |
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In the illustrated embodiment, the alignment features of the positioning guide 3810b may extend from a lateral side 4214 to a medial side 4216 at an angle other than perpendicular each of the sides. Advantageously, the angle used for one or more of the alignment features may be predetermined and/or may be patient-specific. Those of skill in the art will appreciate that other aspects of the alignment features may be predetermined and/or patient-specific. For example, the position of the alignment features may be patient-specific. |
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The body 4202 includes a lateral side 4214, a medial side 4216, a dorsal side 4218, a plantar side 4220, an anterior side 4222, and a posterior side 4224. |
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Figures 42A-42E illustrate views of a positioning guide 3810b of an osteotomy system, according to one embodiment. In the illustrated embodiment, the positioning guide 3810 includes a body 4202, an anterior alignment feature 4204, a posterior alignment feature 4206, an offset feature 4208, optionally a bone engagement surface 4210, one or more handles 4212. |
520 |
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Figure 41E is a dorsal/superior side view of one example embodiment of a positioning guide 3810a that can be used in the osteotomy system 3800. In the illustrated embodiment, the plantar side view (e.g., plantar side 4120) may be the same, substantially the same, and/or similar to the dorsal/superior side view of Figure 41E. |
519 |
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Figure 41D is a posterior/right side view of one example embodiment of a positioning guide 3810a that can be used in the osteotomy system 3800. In the illustrated embodiment, the anterior side view (e.g., anterior side 4122) may be the same, substantially the same, and/or similar to the posterior/right side view of Figure 41D. |
518 |
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Figure 41C is a rear/medial view of one example embodiment of a positioning guide 3810a that can be used in the osteotomy system 3800. Figure 41C illustrates a bone engagement surface 4110 that may be patient-specific and can be used to register the positioning guide 3810a to a bone of a patient. Advantageously, the bone engagement surface 4110 can be generated based at least in part on a bone model of a bone of a patient. |
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Figure 40A is a perspective view of one example embodiment of a resection guide 3820 that can be used in the osteotomy system 3800. |
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Figures 40A-40E illustrate views of a resection guide 3820 of an osteotomy system, according to one embodiment. In the illustrated embodiment, the resection guide 3820 includes one or more resection features 3822, one or more bone attachment features 3824, one or more bone engagement surfaces 3830, and a body 4002. The body 4002 includes a lateral side 4004, a medial side 4006, a dorsal side 4008, a plantar side 4010, an anterior side 4012, and a posterior side 4014. |
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In the illustrated embodiment, the resection features 3822 include an open end and a closed end. The bone attachment features 3824 may be embodied by a hole that is configured to accept a fastener 2010. |
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Added by DJM Jan 2024 |
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