Dave's PCF WIP: Paragraphs

Paragraphs

Actions	Application	Content	Paragraph Number	Notes	Modified
		Content		Paragraph Number	Notes	Any Field
View Edit Delete	PER-12	Alternatively, or in addition, the landmark registration feature 2041 can include a bone engagement surface 2043 that can further facilitate registration of the landmark registration feature 2041 and/or resection guide 2020a with the bone. In this manner, a surgeon can be assured intraoperatively that the resection guide 2020a is being positioned in accordance with a preoperative plan. In one embodiment, the bone engagement surface 2043 is fabricated based on a bone model of the bone the bone engagement surface 2043 is to engage. In certain embodiments, the bone engagement surface 2043 is shaped to accept a surface of a bone placed in contact with the resection guide 2020a. Alternatively, or in addition, the bone engagement surface 2043 of the landmark registration feature 2041 may be shaped to include a contour that resembles, substantially resembles, and/or matches a surface of a bone model of a bone that the resection guide 2020a is to be used with for a surgical procedure (e.g., a patient’s bone). The bone engagement surface 2043 may be formed with, a part of, and/or similar to the bone engagement surface 2033 of the resection guide 2020a.	313	Added by DJM Jan 2024	1/6/24, 10:03 PM
View Edit Delete	PER-12	In certain embodiments, the landmark registration feature 2041 can be shaped like a hook to engage a plantar/inferior surface of bone or a dorsal/superior surface of bone. Alternatively, or in addition, the resection guide 2020a may include a landmark registration feature 2041 on each end (inferior/plantar landmark registration feature 2041a and superior/dorsal landmark registration feature 2041b), together the landmark registration features 2041 can engage one or more landmarks of a surface of the bone such that the surgeon can accurately position and register the resection guide 2020a to the bone. Of course, a resection guide 2020a can include a plurality of landmark registration features 2041. In one embodiment, one or more landmark registration features 2041 can engage a plantar side of a calcaneus 224 and/or a dorsal side of the calcaneus 224.	314	Added by DJM Jan 2024	1/6/24, 10:03 PM
View Edit Delete	PER-12	In the illustrated embodiment, a plantar landmark registration feature 2041a extends from the plantar side 2040. Advantageously, the landmark registration feature 2041 is configured to engage with one or more landmarks for bone of a patient. Advantageously, because the resection guide 2020a is defined in relation to one or more bones of a patient using a model of the one or more bones and a model of the resection guide 2020a, the size, shape, length and width of the landmark registration feature 2041 can be defined to facilitate engagement between the landmark registration feature 2041 and a landmark such as a dorsal surface of the bone. Furthermore, whether or not the resection guide 2020a includes a landmark registration feature 2041 may be a patient-specific feature.	315	Added by DJM Jan 2024	1/6/24, 10:03 PM
View Edit Delete	PER-12	Like the body 2028, the plantar landmark registration feature 2041a and the handle 2026a may also include a medial side 2032, the body 2028 and the plantar landmark registration feature 2041a may both have the same medial side 2032. In one embodiment, the bone engagement surface 2033 may include the bone engagement surface 2043 (See Figures 21E, 21F). Said another way, the bone engagement surface 2033 may extend beyond the medial side 2032 of the body 2028 to include a medial side of the plantar landmark registration feature 2041a and the handle 2026a.	316	Added by DJM Jan 2024	1/6/24, 10:03 PM
View Edit Delete	PER-12	In certain embodiments, the posterior resection feature 2022a and anterior resection feature 2022b may extend from the lateral side 2030 to the medial side 2032. Advantageously, a depth of the posterior resection feature 2022a and/or anterior resection feature 2022b through the body 2028 is long enough to guide a cutting tool and keep the cutting tool oriented along a trajectory defined by an opening of the resection features 2022. Advantageously, the present disclosure enables a osteotomy system 2000 that assists a surgeon in managing a depth of an osteotomy in the bone.	317	Added by DJM Jan 2024	1/6/24, 10:03 PM
View Edit Delete	PER-12	Figure 21E illustrates a medial side 2032 perspective view of a resection guide 2020a. In the illustrated embodiment, the medial side 2032 includes a bone engagement surface 2033. In one embodiment, the bone engagement surface 2033 is configured to contact and/or engage with a surface of a bone of a patient. In one embodiment, periosteum on the bone is elevated and/or stripped around the area of the bone where the resection guide 2020a is to be positioned. The periosteal elevation exposes the bone surface for engagement by the bone engagement surface 2033. Advantageously, the bone engagement surface 2033 is configured to substantially conform to the surface of the bone. Alternatively, or in addition, the bone engagement surface 2033 is configured to partially conform to the surface of the bone.	318	Added by DJM Jan 2024	1/6/24, 10:03 PM
View Edit Delete	PER-12	Alternatively, or in addition, the bone engagement surface 2033 is configured to receive the surface of the bone, where the resection guide 2020a is to be placed. Specifically, a user, based on a prescription and/or in consultation with a surgeon, may determine a planned position for a resection guide 2020a on a lateral surface of a bone of the patient. The user may then reflect this planned position using a model of the bone of the patient and a model of the resection guide 2020a. Because the model of the bone of the patient is a highly accurate representation, the bone engagement surface 2033 defined on the medial side 2032 of the model of the resection guide 2020a accurately includes the features and aspects of the surface of the bone of the patient. Examples of features and aspects of a bone that the bone engagement surface 2033 can include, but are not limited to, a tuberosity, tubercle, crest, spine, process, trochanter, linea, fossa, foramen, notch, groove or sulcus, a protrusion, a projection, a tuberosity, a cavity, a void, a divot, a tab, an extension, a hook, a curve, or the like of the surface of the bone model, but in a reverse or inverse configuration. For example, where a cavity is on a surface of the bone model (and the bone of the patient) a protrusion exists on the bone engagement surface 2033 exists that fits into the cavity.	319	Added by DJM Jan 2024	1/6/24, 10:03 PM
View Edit Delete	PER-12	In one embodiment, the bone engagement surface 2033 is configured to register to a lateral surface of a bone of a patient. In certain embodiments, the bone engagement surface 2033 is defined based, at least in part, on a lateral surface of a bone model of a bone of a patient’s foot. Advantageously, the bone engagement surface 2033 is a negative contoured surface that resembles, substantially resembles, and/or matches a surface of the bone model contacting a model of the resection guide 2020a, when the model of the resection guide 2020a is positioned as desired on the bone model. In one embodiment, registration of a bone engagement surface 2033 means that each feature or aspect of the bone engagement surface 2033 engages, mates, and/or fits within a corresponding feature or aspect of the surface of the bone of the patient. For example, where the bone surface includes a protrusion, the bone engagement surface 2033 includes a recess configured to accept and engage with that protrusion.	320	Added by DJM Jan 2024	1/6/24, 10:03 PM
View Edit Delete	PER-12	As mentioned herein, the bone model used to determine, or at least partially determine, the shape, size, and/or configuration of the bone engagement surface 2033 is based on medical imaging of at least a portion of the patient’s foot and is configured to resemble, significantly resemble, and/or match the anatomy of the patient’s foot.	321	Added by DJM Jan 2024	1/6/24, 10:03 PM
View Edit Delete	PER-12	Figure 21F is a medial side view of a resection guide 2020a.	322	Added by DJM Jan 2024	1/6/24, 10:03 PM
View Edit Delete	PER-12	Figure 21G is a lateral side view of a resection guide 2020a.	323	Added by DJM Jan 2024	1/6/24, 10:03 PM
View Edit Delete	PER-12	Figure 21H is a dorsal side view of a resection guide 2020a.	324	Added by DJM Jan 2024	1/6/24, 10:03 PM
View Edit Delete	PER-12	Figure 21I is a plantar side view of a resection guide 2020a.	325	Added by DJM Jan 2024	1/6/24, 10:03 PM
View Edit Delete	PER-12	Figure 21J illustrates a cross section view of the resection guide 2020a positioned on a bone (e.g., a calcaneus) of a patient. A surgeon has created a first osteotomy using the posterior resection feature 2022a and a second osteotomy using the anterior resection feature 2022b.	326	Added by DJM Jan 2024	1/6/24, 10:03 PM
View Edit Delete	PER-12	Referring now to Figures 21J, 21A, and 21B, in the illustrated embodiment, the posterior resection feature 2022a comprises an opening that starts on the lateral side 2030 and extends to the medial side 2032. The opening of the posterior resection feature 2022a extends through the body 2028 along a first trajectory 2042. In the illustrated embodiment, the anterior resection feature 2022b comprises an opening that starts on the lateral side 2030 and extends to the medial side 2032. The opening of the anterior resection feature 2022b extends through the body 2028 along a second trajectory 2044.	327	Added by DJM Jan 2024	1/6/24, 10:03 PM
View Edit Delete	PER-12	The opening of the posterior resection feature 2022a and/or the opening of the anterior resection feature 2022b has a width and/or length large enough to accommodate, or accept, a cutting element of a cutting tool. In one embodiment, the opening of the posterior resection feature 2022a is configured to guide and/or enable a cutting tool to form a first osteotomy 2046 into, and/or through, the bone. Advantageously, the first osteotomy 2046 tracks, follows, and/or is aligned with the first trajectory 2042. In one embodiment, the opening of the anterior resection feature 2022b is configured to guide and/or enable a cutting tool to form a second osteotomy 2048 into, and/or through, the bone. Advantageously, the second osteotomy 2048 tracks, follows, and/or is aligned with the second trajectory 2044. Thus, a surgeon operating the cutting tool within the opening of the posterior resection feature 2022a and the anterior resection feature 2022b can readily form a first osteotomy 2046 and a second osteotomy 2048 that matches a design that may have been set out in a model of the resection guide 2020a and/or a model of the patient’s bone(s).	328	Added by DJM Jan 2024	1/6/24, 10:03 PM
View Edit Delete	PER-12	In one embodiment, the first trajectory 2042 may be determined and/or defined to be a patient-specific feature. Similarly, the second trajectory 2044 may be determined and/or defined to be a patient-specific feature. Advantageously, using the apparatus, methods, and/or systems of the present disclosure a user may determine and/or at least partially determine the first trajectory 2042 and/or the second trajectory 2044 based on a bone model of at least a portion a bone of the patient that is to receive one or more osteotomies. The bone model of at least a portion of the bone can be derived from and/or based on medical imaging of a patient’s foot. In certain embodiments, the bone model used to determine, or at least partially determine, the first trajectory 2042 and/or the second trajectory 2044 is configured to resemble, substantially resemble, or match the anatomy of the patient’s foot.	329	Added by DJM Jan 2024	1/6/24, 10:03 PM
View Edit Delete	PER-12	As used herein, in certain embodiments, partial determination of the first trajectory 2042 and/or the second trajectory 2044 based on a bone model may mean that the bone model for the a bone of a patient that will receive the osteotomies is used together with other imaging data, anatomic data, patient imaging data, patient data, information from a prescription from a doctor, information about surgeon preferences, measurement data taken from the bone model or medical imaging, or the like may also be used to determine the first trajectory 2041 and/or the second trajectory 2044.	330	Added by DJM Jan 2024	1/6/24, 10:03 PM
View Edit Delete	PER-12	In one embodiment, the posterior resection feature 2022a extends through the resection guide 2020 from the lateral side 2030 to the medial side 2032 along the first trajectory 2042. The first trajectory 2042 is at least partially determined based on a bone model of at least a portion of a bone of a patient’s foot. The bone model is based on medical imaging of the patient’s foot and is configured to resemble, significantly resemble, and/or match the anatomy of the patient’s foot. Alternatively, or in addition, the anterior resection feature 2022b extends through the resection guide 2020 from the lateral side 2030 to the medial side 2032 along the second trajectory 2044. The second trajectory 2044 is at least partially determined based on a bone model of at least a portion of a bone of a patient’s foot. The bone model is based on medical imaging of the patient’s foot and is configured to resemble, significantly resemble, and/or match the anatomy of the patient’s foot.	331	Added by DJM Jan 2024	1/6/24, 10:03 PM
View Edit Delete	PER-12	Those of skill in the art will appreciate that the first trajectory 2042 and the second trajectory 2044 can define a path for the osteotomies formed using the posterior resection feature 2022a and/or anterior resection feature 2022b. Alternatively, or in addition, where a surgical procedure plans to perform a wedge osteotomy, the first trajectory 2042 and the second trajectory 2044 can predefine the size, shape, and configuration of a wedge fragment formed by the osteotomy.	332	Added by DJM Jan 2024	1/6/24, 10:03 PM

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