Dave's PCF WIP: Paragraphs

Paragraphs

Actions	Matter	Content	Para #	Notes	Modified
View Edit Delete	VIL-12	In one embodiment, the tether 840 can be made from a bioabsorbable material such that the tether 840 may be partially, or completely, absorbed into the bone of a patient over time. Alternatively, or in addition, the articular implant 900 and bone anchor 820 may be partially or wholly osseointegrated into the bone. In this manner, the arthroplasty implant system 800 may become a permanent part of the joint and/or bone.	121	Added by DJM 2 2022	2/5/22, 12:00 AM
View Edit Delete	VIL-12	FIG. 12 is a cross-section view of an implant according to one embodiment. FIG. 12 illustrates an example implant 500 positioned within a bone pocket 864. In the illustrated embodiment, the bone pocket 864 has a semispherical or hemispherical shape and has a bone radius measured from point 1202 with a constant radius R1. In one embodiment, R1 may be between about 1.5mm and about 3mm, and may depend on the size of the implant 500 being used. For example, in one embodiment, the size of R2 is substantially the same as the size of R1. R1 and/or R2 may be sized to be substantially half of the diameter of an OCL 350 that was present on the distal articular surface 860 before the bone pocket 864 was formed. In certain embodiments, the size of R1 and/or R2 may be slightly larger than half of the diameter of an OCL 350 that was present on the distal articular surface 860 before the bone pocket 864 was formed.	122	Added by DJM 2 2022	2/5/22, 12:00 AM
View Edit Delete	VIL-12	FIG. 12 illustrates that the posterior surface 514 is convex and the edge 520 is circular. The posterior surface 514 may be semispherical and the bone pocket 864 may be semispherical. In one embodiment, the posterior surface 514 may have a hemispherical shape with a constant radius R2 from point 1202. In one embodiment, R2 may be substantially the same as R1. R2 and R1 being the same can ensure an even and constant interface between the posterior surface 514 and a surface of the bone pocket 864. This interface retains the implant 500 within the bone pocket 864.	123	Added by DJM 2 2022	2/5/22, 12:00 AM
View Edit Delete	VIL-12	In certain embodiments, R2 is greater than R1. R2 greater than R1 may ensure that the joint-facing articular surface 512 will extend outside the bone pocket 864 making the joint-facing articular surface 512 prominent to the distal articular surface 860. This enables the joint-facing articular surface 512 to serve as an articulation surface.	124	Added by DJM 2 2022	2/5/22, 12:00 AM
View Edit Delete	VIL-12	FIG. 12 also illustrates an articular implant 900 having a joint-facing articular surface 512 that is convex. The joint-facing articular surface 512 may have a radius R3 measured from point 1202 that defines convex joint-facing articular surface 512. R3 and R2 may be sized such that the joint-facing articular surface 512 is prominent and serves as a suitable replacement for at least a portion of the distal articular surface 860. In one embodiment, the joint-facing articular surface 512 extends above the distal articular surface 860 by between about 1mm to about 1.5mm.	125	Added by DJM 2 2022	2/5/22, 12:00 AM
View Edit Delete	VIL-12	FIG. 12 illustrates a tether 840 that couples the implant 500 to a bone anchor 820 (See FIG. 11) through a bone tunnel 862 that extends from the bone pocket 864 such that when the tether 840 couples the implant 500 to the bone anchor 820 at least a portion of the edge 520 contacts a surface of the bone pocket 864 below the distal articular surface 860. The angle and trajectory of the bone tunnel 862 relative to the bone pocket 864 can be selected to maximize the fixation affect between the posterior surface 514, edge 520, and the surface of the bone pocket 864. The angle of the bone tunnel 862 may apply an even tension of the implant 500 pressing the posterior surface 514 against the surface of the bone pocket 864.	126	Added by DJM 2 2022	2/5/22, 12:00 AM
View Edit Delete	VIL-12	FIG. 13 is a cross-section view of an implant according to one embodiment. FIG. 13 illustrates an implant 500 with a body 510 having the joint-facing articular surface 512, a convex posterior surface 514, and an edge 520 between the joint-facing articular surface 512 and the convex posterior surface 514. In certain embodiments, it may be desirable to have the edge 520 be prominent to the distal articular surface 860. Said another way, the implant 500 and bone pocket 864 may be sized such that the edge 520 extends above the natural articular surface 260 of the bone. Furthermore, it may be desirable to have the edge 520 be prominent to (i.e., extend above) the distal articular surface 860 and below a surface of cartilage 1302. In this manner, the edge 520 is contained within the cartilage 1302.	127	Added by DJM 2 2022	2/5/22, 12:00 AM
View Edit Delete	VIL-12	FIG. 13 also illustrates that in the example embodiment, the implant 500 includes a joint-facing articular surface 512 that is convex and has a size and shape such that a top (marked by X 1304) of the joint-facing articular surface 512 is congruent with or substantially congruent with cartilage 1302 and/or a surface of the cartilage 1302. The top 1304 may be a geometric center of the joint-facing articular surface 512. In another embodiment, the joint-facing articular surface 512 has a size and shape such that the top 1304 is below a surface of surrounding cartilage 1302 of the distal articular surface 860 and the edge 520 is below surface of surrounding cartilage 1302.	128	Added by DJM 2 2022	2/5/22, 12:00 AM
View Edit Delete	VIL-12	FIG. 14 is a flow chart diagram of one example method 1400 for deploying an arthroplasty implant system according to one embodiment. FIGS. 15A-15F illustrate perspective cross-section views of different steps in an example method, such as method 1400 for deploying an arthroplasty implant system according to one embodiment. Referring to FIGS. 8 through 15F, the method 1400 starts with a user, such as a surgeon, forming 1402 a bone pocket 864 in an articular surface of a metatarsal bone (e.g., distal articular surface 860 of metatarsal bone 816), the bone pocket 864 is sized and positioned to resect at least one OCL 350. A surgeon may distract the joint in order to provide access for forming the bone pocket 864. In certain embodiments, the surgeon may start with a small bone pocket 864 and progressively increase the size of the bone pocket 864 until a sufficient amount of OCL 350 is removed. FIG. 15A illustrates one example after completion of the forming step 1402.	129	Added by DJM 2 2022	2/5/22, 12:00 AM
View Edit Delete	VIL-12	Next, a surgeon, or other user, may form 1404 a bone tunnel 862 comprising a distal tunnel end (e.g., distal end 868) and a proximal tunnel end (e.g., proximal end 866), the bone tunnel 862 is configured such that the distal tunnel end connects the bone pocket 864 and the proximal tunnel end connects to an external surface of the metatarsal bone 816. The position, length and trajectory of the bone tunnel 862 may vary based on a variety of factors and may be determined, at least in part, using a guide that may seat, index, or register on the bone pocket 864. FIG. 15B illustrates one example after completion of the forming step 1404.	130	Added by DJM 2 2022	2/5/22, 12:00 AM
View Edit Delete	VIL-12	Next, a surgeon, or other user, may pass 1406 a tether 840 through the distal tunnel end (e.g., distal end 868) and proximal tunnel end (e.g., proximal end 866) of the bone tunnel 862. In one embodiment, the surgeon may use a suture threader to pass the tether 840 from the distal tunnel end (e.g., distal end 868) and proximal tunnel end (e.g., proximal end 866) by pulling the tether 840. The tether 840 may include a distal tether end and a proximal tether end. Of course, there are a variety of ways a surgeon may pass 1406 the tether 840 through the bone tunnel 862 each of which is within the scope of the present disclosure. For example, the tether 840 may be pushed from the distal tunnel end to the proximal tunnel end.	131	Added by DJM 2 2022	2/5/22, 12:00 AM
View Edit Delete	VIL-12	FIG. 15C illustrates one example as a surgeon is passing 1406 the tether 840 through the bone tunnel 862. The surgeon has inserted a suture threader through the bone tunnel 862. The proximal end 842 of the tether 840 has been passed through a loop in the suture threader such that withdrawing the suture threader from the bone tunnel 862 will pull the tether 840 through the bone tunnel 862, as illustrated in FIG. 15D.	132	Added by DJM 2 2022	2/5/22, 12:00 AM
View Edit Delete	VIL-12	In one embodiment in a next step in the method 1400, a user may secure 1408 the distal tether end (e.g., distal end 844) to the arthroplasty implant 810. FIG. 15C illustrates that this step 1408 has been completed. Those of skill in the art will appreciate that step 1408 can be performed at various times and in a different order than the one described here. A user may secure 1408 the distal tether end to the arthroplasty implant 810 before a surgical procedure begins. Alternatively, a manufacturer may secure 1408 the distal tether end to the arthroplasty implant 810.	133	Added by DJM 2 2022	2/5/22, 12:00 AM
View Edit Delete	VIL-12	FIG. 15C also illustrates that the body 822 may be deployed within the bone tunnel 862. Those of skill in the art will appreciate that deployment of a bone anchor 820 or part of a bone anchor 820 may be performed at different times in the method 1400. In the illustrated embodiment, the body 822 may be configured to receive the tether locking feature 832.	134	Added by DJM 2 2022	2/5/22, 12:00 AM
View Edit Delete	VIL-12	In one embodiment in a next step in the method 1400, a user may secure 1410 the proximal tether end within the bone tunnel 862. In one embodiment, the user may couple the distal end 844 of the tether 840 to a tether locking feature 832 and hold the tether 840 tight while moving the tether locking feature 832 along the tether 840 in the direction of arrow 1502. This action may tighten the tether 840 and introduce tension between the arthroplasty implant 810 and the bone anchor 820 (body 822 and tether locking feature 832). The user may then seat the tether locking feature 832 in the body 822 to secure 1410 the tether 840 to the metatarsal bone 816. One example of step 1410 is shown in FIG. 15E.	135	Added by DJM 2 2022	2/5/22, 12:00 AM
View Edit Delete	VIL-12	Step 1410 may complete the method 1400. FIG. 15F illustrates one example of the arthroplasty implant system 800 successfully deployed in the metatarsal bone 816.	136	Added by DJM 2 2022	2/5/22, 12:00 AM
View Edit Delete	VIL-12	In certain embodiments, after a successful deployment of arthroplasty implant system 800, a user may desire a revision procedure. For example, the arthroplasty implant system 800 may have performed without any problems, however the condition of the MTP joint 250 may have deteriorated. "Revision procedure" refers to a surgical procedure in which the procedure's purpose is to change an aspect of a prior surgical procedure. A revision procedure may be performed to address infection, disease, a complication, or for a variety of other reasons.	137	Added by DJM 2 2022	2/5/22, 12:00 AM
View Edit Delete	VIL-12	In one embodiment, cartilage 1302 around the arthroplasty implant 810 may have developed one or more OCLs 350. During such a revision procedure a surgeon can ream the arthroplasty implant 810 out of the bone pocket 864 and/or resize the bone pocket 864 to a size that supports a second arthroplasty implant that has a greater diameter than the arthroplasty implant 810. The surgeon may restore the bone tunnel 862, for example, by using a surgical drill and bit. Next, the surgeon may pass a second tether through the restored bone tunnel, secure a distal tether end of the second tether to the second arthroplasty implant, and secure a proximal tether end of the second tether within the restored bone tunnel as part of the revision procedure.	138	Added by DJM 2 2022	2/5/22, 12:00 AM
View Edit Delete	VIL-12	1.A system comprising:	143	Added by DJM 2 2022	2/5/22, 12:00 AM
View Edit Delete	VIL-12	an implant comprising:	144	Added by DJM 2 2022	2/5/22, 12:00 AM

Page 214 of 438, showing 20 record(s) out of 8,747 total