Dave's PCF WIP: Paragraphs

Paragraphs

Actions	Matter	Content	Para #	Notes	Modified
View Edit Delete	PER-24	Those of skill in the art will appreciate that the FIGS. 13A-13F illustrate examples and that other shapes and/or configurations can be provided within the scope of the present disclosure.	308	Added by DJM Jan 2024	1/6/24, 10:01 PM
View Edit Delete	PER-24	FIG. 13A illustrates the resection interface 884 of the example in FIGS. 12A-12D. As has been described, the resection interface 884 consists of a resected distal end 892 of the tibia 226 and a resected proximal end 894 of the talus 222. In certain embodiments, there are no other structures and/or implants between the resected distal end 892 and the resected proximal end 894. This is particularly the case where the surgical procedure is an ankle fusion.	309	Added by DJM Jan 2024	1/6/24, 10:01 PM
View Edit Delete	PER-24	The resection interface 884 shown in FIG. 13A, illustrates a view showing an anterior side of the bones and the resection interface 884 and the medial side is on the left and the lateral side is on the right. An anterior-posterior axis extends perpendicularly into and out of the view in FIG. 13A and the view illustrates a cross-section of the resection interface 884. FIG. 13A illustrates the cross-section of the resection interface 884 is a polygonal cross-section. In the illustrated embodiment, the polygonal cross-section includes two resected sides of the talus 222 and at least one side of the tibia 226. In FIG. 13A, the resected proximal end 894 of the talus 222 has an angled medial cut that connects to a straight cut. The angled medial cut may be implemented to enable the talus 222 to fit under the tibia 226 without interference from the medial malleolus when the osteotomies are reduced.	310	Added by DJM Jan 2024	1/6/24, 10:01 PM
View Edit Delete	PER-24	The resection interface 884 shown in FIG. 13B, illustrates a view showing an anterior side of the bones and the resection interface 884 and the medial side is on the left and the lateral side is on the right. An anterior-posterior axis extends perpendicularly into and out of the view in FIG. 13B and the view illustrates a cross-section of the resection interface 884. FIG. 13B illustrates that the cross-section of the resection interface 884 is a polygonal cross-section. In the illustrated embodiment, the polygonal cross-section includes two resected sides of the talus 222 and at least one side of the tibia 226.	311	Added by DJM Jan 2024	1/6/24, 10:01 PM
View Edit Delete	PER-24	In FIG. 13B, the resected proximal end 894 of the talus 222 has an angled medial cut that connects to a straight cut that connects to an angled lateral cut. The angled medial cut may be implemented to enable the talus 222 to fit under the tibia 226 without interference from the medial malleolus when the osteotomies are reduced. The angled lateral cut may be implemented to enable the talus 222 to fit under the tibia 226 without interference from the lateral malleolus when the osteotomies are reduced. Alternatively, or in addition, the resected distal end 892 of the tibia 226 may include an angled medial cut that connects to a straight cut that connects to an angled lateral cut. The angled medial cut, straight cut, and angled lateral cut of the tibia 226 can be configured to match and/or substantially match the angled medial cut, straight cut, and angled lateral cut of the talus 222. In this manner, the sides of the resection interface 884 may be configured to engage with each other.	312	Added by DJM Jan 2024	1/6/24, 10:01 PM
View Edit Delete	PER-24	The resection interface 884 shown in FIG. 13C illustrates a view showing an anterior side of the bones and the resection interface 884 and the medial side is on the left and the lateral side is on the right. An anterior-posterior axis extends perpendicularly into and out of the view in FIG. 13C and the view illustrates a cross-section of the resection interface 884. FIG. 13C illustrates that the cross-section of the resection interface 884 is a polygonal cross-section. In the illustrated embodiment, the polygonal cross-section includes five resected sides of the talus 222 and five resected sides of the tibia 226.	313	Added by DJM Jan 2024	1/6/24, 10:01 PM
View Edit Delete	PER-24	In FIG. 13C, the resected proximal end 894 of the talus 222 has five cuts that connect to each other at right (or substantially right) angles. Alternatively, or in addition, the resected distal end 892 of the tibia 226 may include five corresponding cuts that connect to each other at right (or substantially right) angles. The cuts of the talus 222 correspond to the tibia 226 such that an opening formed in the tibia 226 receives a shape formed in the talus 222. In this manner, the sides of the resection interface 884 may be configured to engage with each other.	314	Added by DJM Jan 2024	1/6/24, 10:01 PM
View Edit Delete	PER-24	Those of skill in the art will appreciate that the opening can be formed in the talus 222 and the shape that fits into the opening formed in the tibia 226. This can be done for example in response to user instructions 604. Similarly, those of skill in the art will appreciate that the shape of the cross section of the resection interface 884 can be any of a number of straight line and/or curved shapes. Furthermore, a resection interface 884 may be configured to have a keyhole and corresponding key shape configuration. Using FIG. 13C as an example, the opening formed by a first osteotomy of the resected distal end 892 of the tibia 226 can be referred to as a keyhole and the shaped extension formed in the resected proximal end 894 of the talus 222 can be considered a corresponding key configured to fit within the keyhole.	315	Added by DJM Jan 2024	1/6/24, 10:01 PM
View Edit Delete	PER-24	Of course, a variety of shapes for the resection interface 884 can be formed using the present disclosure. Like FIGS. 13A-13C, FIGS. 13D-13F illustrate alternative examples of resection interface 884 that illustrate a cross section for the resection interface 884 that can include straight side cuts, curved cuts, and/or a combination of these. In one embodiment, curved cuts may be formed for the osteotomies using a cutting tool such as a burr. FIG. 13D illustrates a triangular or chevron cross-section shape for the resection interface 884. FIG. 13E illustrates a single curved cross-section shape for the resection interface 884. FIG. 13F illustrates a multiple curve cross-section shape for the resection interface 884.	316	Added by DJM Jan 2024	1/6/24, 10:01 PM
View Edit Delete	PER-24	FIGs. 14A-14B illustrate views of resection guides of an osteotomy system 1400, according to alternative embodiments. FIG. 14A illustrates an alternative embodiment of a resection guide 820. The osteotomy system 1400 includes resection guide 1402.	317	Added by DJM Jan 2024	1/6/24, 10:01 PM
View Edit Delete	PER-24	The resection guide 1402 of osteotomy system 1400 can include some or all of the same or substantially the same features, aspects, and/or components as the resection guides 820 described herein with like components including the same reference numerals. Accordingly, the resection guide 1402 can or may include one or more tibia resection features 864, one or more talus resection feature 866, one or more bone attachment features 828, one or more bone engagement features 830, one or more alignment guides 874, one or more shafts 878, one or more openings 868, one or more resection guards 870, one or more fastener guides 890, and the like.	318	Added by DJM Jan 2024	1/6/24, 10:01 PM
View Edit Delete	PER-24	The resection guide 1402 may differ from other resection guides 820 described herein because the resection guide 1402 may include one or more tibia resection features 864 connected to one or more talus resection feature 866 by a single body. The body may extend from a distal end of the tibia 226 to the proximal end of the talus 222 across the ankle joint. In one embodiment, the single body may simply connect the tibia resection feature 864 and/or talus resection feature 866. Alternatively, or in addition, the single body may include a posterior side that includes a bone engagement surface configured to engage bones of the tibia and talus and engage with a space between the bones within the ankle joint. Advantageously, such a bone engagement surface can assist a surgeon in ensuring that that resection guide 1402 is properly positioned before being connected and/or attached to the bone(s). In one embodiment, the part of the body between the tibia resection feature 864 and the talus resection feature 866 can be a bone engagement feature 830.	319	Added by DJM Jan 2024	1/6/24, 10:01 PM
View Edit Delete	PER-24	As described herein, a surgeon can dictate whether the resection guides 820 is a single guide as in resection guide 1402, whether a bone engagement feature 830 is between the resection features 826, how many bone engagement features 830 to include, how many resection features to include, the configuration of the resection features, the configuration of the bone engagement features, and the like. A surgeon can also control whether the resection guide 1402 will include fastener guides 890 and/or an alignment guide 874. In one embodiment, a portion of the body that extends from a distal end of the tibia 226 to the proximal end of the talus 222 across the ankle joint (e.g., between the resection features 826) may also include a plurality of openings in a pattern. The openings may be six sided (i.e., hexagons). The openings may serve to facilitate visibility for a surgeon of the bones and/or space between the bones of the joint, particularly when the surgeon uses flouroscopy to confirm positioning and/or steps for a surgical procedure.	320	Added by DJM Jan 2024	1/6/24, 10:01 PM
View Edit Delete	PER-24	The resection guide 1402 can include a first resection feature 826 (e.g., tibia resection feature 864) coupled to a body of the resection guide 1402. The resection feature 826 can be configured to guide a cutting tool for form a first osteotomy in a first bone, such as a tibia 226. The first osteotomy is defined at least partially based on user directions and/or at least partially based on a bone model of at least a portion of the first bone (e.g., tibia 226). The bone model can be based on medical imaging of a patient’s foot. Alternatively, or in addition, the resection guide 1402 can also include a second resection feature 826 (e.g., talus resection feature 866) coupled to a body of the resection guide 1402. The resection feature 826 can be configured to guide a cutting tool for form a second osteotomy in a second bone, such as a talus 222. The second osteotomy can be shaped to form a resection interface with the first osteotomy.	321	Added by DJM Jan 2024	1/6/24, 10:01 PM
View Edit Delete	PER-24	In addition, the resection guide 1402 can include a second bone attachment feature 828 in addition to a first attachment feature 828 of the resection guide 1402. The second bone attachment feature 828 can be configured to secure the resection guide 1402 to a second bone (e.g., talus 222). In one embodiment, the first bone and the second bone are part of a common joint. Securing the resection guide 1402 to a first bone (e.g., tibia 226) and a second bone (e.g., talus 222) can be assist a surgeon in performing the osteotomies just as outlined preoperatively, because the bone models used to prepare the resection guide 1402 and/or a preoperative plan may be dependent on each bone involved in the surgical procedure being in a predetermined position.	322	Added by DJM Jan 2024	1/6/24, 10:01 PM
View Edit Delete	PER-24	Advantageously, securing the resection guide 1402 to both a first bone with a first bone attachment feature 828 and a second bone with a second bone attachment feature 828 can ensure that the two bones are in the same position as the bone models used to design the resection guide 1402. This means that securing the two bones intraoperatively to the resection guide 1402 will also result in positioning and/or orienting the two bones for the osteotomies. Accurate bone positioning during the surgical procedure that corresponds to the bone positioning in a model (e.g., bone model(s) and/or instrument model(s)) ensures that angles, trajectories, sizes, and/or shapes designed into the instrument (e.g., resection guide 1402) will be used and leveraged during the surgical procedure.	323	Added by DJM Jan 2024	1/6/24, 10:01 PM
View Edit Delete	PER-24	FIG. 14B illustrates an alternative embodiment of a resection guide 820. The osteotomy system 1400 includes resection guide 1404. The resection guide 1404 can include some or all of the same or substantially the same features, aspects, and/or components as the resection guide 1402 described herein with like components including the same reference numerals. Accordingly, the resection guide 1404 can or may include one or more tibia resection features 864, one or more talus resection feature 866, one or more bone attachment features 828, one or more bone engagement features 830, one or more alignment guides 874, one or more shafts 878, one or more openings 868, one or more resection guards 870, one or more fastener guides 890, and the like.	324	Added by DJM Jan 2024	1/6/24, 10:01 PM
View Edit Delete	PER-24	The resection guide 1404 may differ from resection guide 1402 because the resection guide 1402 may include a tibial resection guide 822 that is or can be coupled to a talus resection guide 824 by a coupler 1406. In resection guide 1404 there is an open space between tibia resection feature 864 and talus resection feature 866. The coupler 1406 can be implemented in a variety of forms. In the illustrated embodiment, the coupler 1406 includes a pin of one of the tibial resection guide 822 and talus resection guide 824 that engages an opening in the other of the tibial resection guide 822 and talus resection guide 824. In the illustrated embodiment, the tibial resection guide 822 includes a pin 1408 that fits within an opening 1410 of the talus resection guide 824 to engage the coupler 1406. A surgeon may couple the tibial resection guide 822 preoperatively or intraoperatively.	325	Added by DJM Jan 2024	1/6/24, 10:01 PM
View Edit Delete	PER-24	As with the resection guide 1402 the resection guide 1404 may include a plurality of bone engagement features 830a, 830b, 830c. Alternatively, or in addition, certain bone engagement features 830 may be omitted from a particular resection guide 1404 based on user instructions 604.	326	Added by DJM Jan 2024	1/6/24, 10:01 PM
View Edit Delete	PER-24	In one embodiment, the inclusion of these bone engagement features 830 and/or the configuration (i.e., size, shape, etc.) of the bone engagement feature 830 can be based at least partially user instructions 604 and at least partially on a bone model of at least a portion of one or more a tibia 226 and/or a talus 222 of a patient. In one embodiment, the bone model may influence a configuration of a bone engagement surface(s) of the resection guide 1404. Alternatively, or in addition, certain aspects of the bone engagement features 830 may be based on a default configuration provided for the osteotomy system 1400.	327	Added by DJM Jan 2024	1/6/24, 10:01 PM

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