The present disclosure relates to apparatuses, systems, and methods for surgery. More particularly, the present disclosure relate to apparatuses, kits, systems, and methods of shoulder replacement.
The human shoulder is susceptible to a number of injuries and ailments (e.g., osteoarthritis, rotator cuff injuries, shoulder dislocation, tumor of the shoulder joint, fractures, rheumatoid arthritis and other inflammatory disorders, osteonecrosis, etc.). In some situations, surgery may be recommended to address the injuries and ailments. For example, a patient may elect to have shoulder arthroplasty, otherwise referred to as total shoulder replacement surgery, or reverse total shoulder replacement. However, the hardware (e.g., implants) required for total shoulder replacement surgery and reverse total shoulder replacement surgery may be different.
In certain situations, some patients may have total shoulder replacement surgery and may also elect to subsequently have reverse total shoulder replacement surgery. For example, the total shoulder replacement surgery may be unsuccessful and/or the implanted hardware used during the total shoulder replacement surgery may wear out over time. Since total shoulder replacement surgery may involve removing damaged areas of bone, the overall bone structure of the shoulder may be weakened or otherwise compromised after the total shoulder replacement surgery. The weakened bone structure may lead to complications when performing a subsequent reverse total shoulder replacement surgery.
According to an aspect of the present disclosure, a base baseplate for implantation into a scapula is disclosed. The baseplate includes a first circular portion, a second circular portion, a third circular portion, wherein the first circular portion, the second circular portion, and the third circular portion define an upper surface, a projection extending from the third circular portion in a direction away from the upper surface and configured to be received with an aperture created in the scapula, and an aperture extending through the projection and configured to receive a bone screw such that a portion of the bone screw extends beyond an end of the projection and into the scapula, and wherein the aperture is configured to receive a projection of an artificial joint such that the artificial joint is coupled to the baseplate.
According to another aspect of the present disclosure, a surgical kit is disclosed. The surgical kit includes a baseplate configured to be implanted into an aperture created in a scapula, the baseplate including a first circular portion, a second circular portion, a third circular portion, wherein the first circular portion, the second circular portion, and the third circular portion define an upper surface, a projection extending from the third circular portion in a direction away from the upper surface and configured to be received with an aperture created in the scapula, an aperture extending through the projection, a bone screw configured to be inserted into the aperture in the baseplate such that a portion of the bone screw extends beyond an end of the projection and into the scapula, and an artificial joint defining an upper surface and including a projection extending away from the upper surface, wherein the projection is configured to be received within the aperture is configured such that the artificial joint is coupled to the baseplate.
According to another aspect of the present disclosure, a method of performing shoulder surgery is disclosed. The method includes removing a central portion of bone from a scapula to create a central aperture, removing a first portion of bone from the scapula to create a first aperture, removing a second portion of bone from the scapula to create a second aperture, inserting a projection of a baseplate into the central aperture, the baseplate further including a first circular portion received within the first aperture and a second circular portion received within the second aperture, and inserting a bone screw through an aperture extending through the projection of the baseplate, such that a portion of the bone screw extends past an end of the projection and into the scapula.
This summary is illustrative only and should not be regarded as limiting.
Before turning to the figures, which illustrate certain exemplary embodiments in detail, it should be understood that the present disclosure is not limited to the details or methodology set forth in the description or illustrated in the figures. It should also be understood that the terminology used herein is for the purpose of description only and should not be regarded as limiting.
The use of “e.g.” “etc.,” “for instance,” “in example,” and “or” and grammatically related terms indicates non-exclusive alternatives without limitation, unless otherwise noted. The use of “optionally” and grammatically related terms means that the subsequently described element, event, feature, or circumstance may or may not be present/occur, and that the description includes instances where said element, event, feature, or circumstance occurs and instances where it does not. The use of “attached” and “coupled” and grammatically related terms refers to the fixed, releasable, or integrated association of two or more elements and/or devices with or without one or more other elements in between. Thus, the term “attached” or “coupled” and grammatically related terms include releasably attaching or fixedly attaching two or more elements and/or devices in the presence or absence of one or more other elements in between. As used herein, the terms “proximal” and “distal” are used to describe opposing axial ends of the particular elements or features being described in relation to anatomical placement.
The human shoulder is generally referred to as a ball-and-socket joint that enables movement of the arm about the shoulder joint. A rounded head of the humerus bone interfaces with a shallow socket in the scapula, also referred to as the glenoid, to create the ball-and-socket joint. The shoulder joint may be susceptible to damage or injury that may limit the range of motion of the shoulder and/or cause pain during movement of the shoulder. For example, the shoulder joint may be susceptible to osteoarthritis, rotator cuff injuries, shoulder dislocation, tumor of the shoulder joint, fractures, rheumatoid arthritis and other inflammatory disorders, osteonecrosis, etc. In response to an injury or ailment, a person may undergo total replacement total shoulder replacement surgery, or shoulder arthroplasty, to improve the condition of his or her shoulder.
Total shoulder replacement surgery involves removing damaged areas of bone and replacing the bone with artificial implants. Generally, during total shoulder replacement, a portion of the rounded head of the humerus bone is replaced with a rounded spherical implant, which is also referred to as a glenosphere. The rounded spherical implant may be a polished metal ball with a stem attached. The stem is implanted into the humerus bone such that the polished metal ball extends from the humerus bone. Further, at least a portion of the glenoid is replaced with an artificial socket. For example, a groove or slot may be cut into the glenoid. The artificial socket may include a corresponding projection that is received by the slot in the glenoid. The artificial socket is then typically either press-fit or cemented into the glenoid. The artificial socket, which is typically manufactured from plastic, interfaces with the metal sphere to mimic the anatomy of a healthy shoulder joint to enable rotation of the arm about the shoulder joint.
In some situations, a person may undergo reverse total shoulder replacement surgery. For example, a total replacement surgery may fail or otherwise be unsuccessful (e.g., as a result of loosening of the artificial socket), and a reverse total shoulder replacement may be recommended. In this scenario, the artificial socket implanted into the glenoid during total shoulder replacement surgery may be removed from the scapula and a metal sphere may be implanted into the scapula. In reverse total shoulder replacement, the typical anatomy of the shoulder joint is reversed. In other words, the artificial socket is implanted into the humerus bone and the metal sphere is implanted into the glenoid of the scapula.
Performing a reverse total shoulder replacement surgery subsequent to a total shoulder replacement surgery may present a number of difficulties. For example, the bone structure of the scapula may be compromised as a result of total shoulder replacement, especially near the glenoid. For example, during total shoulder replacement surgery, one or more grooves or slots may be cut into the scapula to secure the artificial socket. These grooves or slots may reduce the structure strength of the scapula. Since the metal sphere is typically secured to the scapula via bone screws, compromised bone structure of the scapula may reduce the stability of the metal sphere implanted into the scapula.
Referring now to the figures generally, a glenoid system is disclosed according to various embodiments. The glenoid system may be modular such that the glenoid system can be used during both total shoulder replacement surgery and reverse total shoulder replacement surgery. According to various embodiments, the glenoid system includes a baseplate that may implanted into the scapula. The plate is configured to receive and couple to both a sphere (e.g., during a total shoulder replacement surgery) and an artificial socket (e.g., during a total shoulder replacement surgery). For example, the baseplate may be implanted during a total shoulder replacement surgery and an artificial socket may be coupled to the baseplate (e.g., via a Morse taper). According to various embodiments, the baseplate is secured to the scapula via one or more bone screws, thereby improving the stability of the baseplate and the artificial socket implanted during the total shoulder replacement surgery. As a result of the improved stability of the baseplate, the risk of glenoid loosening, or loosening of the artificial joint, may be reduced in total shoulder replacement surgery. Further, the baseplate may be an inlay baseplate, which may improve stability baseplate.
Due to the modular capabilities of the baseplate, performing a reverse total shoulder replacement surgery subsequent to a total shoulder replacement surgery may be simplified and the success rate of the total shoulder replacement surgery and reverse total shoulder replacement surgery may increase. For example, during the reverse total shoulder replacement surgery, rather than removing the artificial joint from the scapula, the artificial joint is removed from the baseplate, which does not alter the structural integrity of the scapula. The baseplate, which was previously implanted during the total shoulder replacement, is configured to receive a sphere during the reverse total shoulder replacement surgery. Since the baseplate can receive both an artificial socket and a sphere, there is no longer the need to cut additional grooves or drill additional bone screws into the scapula during the reverse total shoulder replacement surgery. Further, since the artificial socket is not coupled directly to the scapula during total shoulder replacement surgery, the bone structure will not be weakened or compromised as a result of removing the artificial socket.
Referring now to
As shown, the metal sphere 14 is coupled to a stem 18. As a part of the total shoulder replacement surgery, a portion of the head 24 of the humerus 26 is removed. The stem 18 is then implanted (e.g., broached) into the head 24 of the humerus 26 such that the metal sphere 14 extends from the humerus 26 to mimic the portion of the head 24 that was removed. The metal sphere 14 then interfaces with the surface of the artificial joint 12 to enable rotation of the arm about the shoulder joint.
Referring now to
As shown, the artificial joint 32 is coupled to a stem 38. As a part of the reverse total shoulder replacement surgery, a portion of the head 24 of the humerus 26 is removed. The stem 38 is then implanted (e.g., broached) into the head 24 of the humerus 26 such that the artificial joint 32 extends from the humerus 26 to mimic the portion of the head 24 that was removed. The artificial joint 32 then interfaces with the surface of the metal sphere 34 o enable rotation of the arm about the shoulder joint.
Referring now to
As shown, the baseplate 100 includes an upper surface 102 proximate the top of the baseplate 100. As shown, the upper surface 102 is substantially flat, however, according to other embodiments, the upper surface 102 may be curved (e.g., concave, convex, etc.). As shown, the baseplate 100 and the upper surface 102 form a “snowman” shaped body and define a first circular portion 106 that defines a first radius R1, a second circular portion 108 that defines a second radius R2, and a third circular portion 110 that defines a third radius R3. According to various embodiments, the snowman shaped body of the baseplate 100 may improve performance of the baseplate as the glenoid of the scapula 22 is generally oval shaped, rather that circular. According to various embodiments, R1, R2, and R3 are all substantially the same (e.g., within 5% of each other). For example, R1, R2, and R3 may each be between 5 mm and 40 mm. However, according to other embodiments, R1, R2, and R3 may not all be substantially the same. The size of the baseplate 100 and the size of R1, R2, and R3 may depend on the size of the patient's glenoid, as is discussed further herein. According to various embodiments, the upper surface 102 is manufactured from a biocompatible material. For example, the upper surface 102 may be manufactured from a plastic, such as polyethylene. According to other embodiments, the upper surface 102 may be manufactured from a metal, such as titanium, stainless steel, a mixed alloy, etc.
As shown, the baseplate 100 further includes an outer rim 104 extending outwardly from the upper surface 102. As shown, the outer rim 104 extends around the entire upper surface 102. According to various embodiments, the outer rim 104 extends between 0.5 mm and 3 mm past the upper surface 102. According to various embodiments, the baseplate 100 defines a height 103. According to various embodiments, the height 103 is between 5 mm and 10 mm. For example, the height 103 may be 7.5 mm. According to various embodiments, the outer rim 104 and/or some or all of the peripheral edge of the baseplate 100 may be manufactured from a porous material or may have a porous coating applied to it. According to various embodiments, the porous peripheral edge and/or outer rim 104 may improve stability of the baseplate 100 when implanted into the patient.
As shown, the baseplate 100 includes a projection 112 proximate the third circular portion 110 that extends from a lower surface 114 of the baseplate 100. According to various embodiments, the projection 112 is configured to be received by a central aperture, or an opening in the scapula, (e.g., as created by the surgeon using a drill or reamer) to secure the baseplate 100 to the scapula in an inlay manner. As shown, the distance between the upper surface 102 and the end of the projection 112 defines a depth 105 According to various embodiments, the depth 105 may be between 10 mm and 20 mm. For example, the depth 105 may be 15 mm. Further, the projection 112 defines a fourth radius R4 (i.e., a diameter D4). According to various embodiments, the fourth radius R4 is between 1.5 mm and 4.5 mm. For example, the fourth radius R4 may be 3 mm.
As shown, the baseplate 100 further defines a first opening 116 proximate the first circular portion 106, a second opening 118 proximate the second circular portion 108, and a third opening 120 proximate the third circular portion 110. For example, when viewed from above (e.g.,
As shown, the first opening 116, and second opening 118, and the third opening 120 are configured to individually receive a securing element (e.g., bone screw, bone barb, etc.). For example, the first opening 116 and the second opening 118 may be configured to individually receive a bone screw 124. According to various embodiments, the bone screws 124 may be utilized to secure the baseplate to the scapula. As shown, the bone screws 124 are configured to receive locking caps 126, which may reduce the likelihood of the bone screws 124 backing out of the baseplate 100 after the baseplate 100 is implanted. Further, as shown, the third opening 120 is configured to receive a locking screw 128 (e.g., a self-locking screw). By utilizing the locking screw 128, the likelihood of blackout of the locking screw 128 is reduced.
As shown, first opening 116 and the second opening 118 may be angled with respect to the upper surface 102 such that the bone screws 124 define a first angle 107 and a second angle 109, respectively, with respect to the locking screw 128. According to various embodiments, the first angle 107 and the second angle 109 may be the same or the first angle 107 and the second angle 109 may be different. According to various embodiments, the first angle 107 and the second angle 109 are between 0 degrees and 60 degrees.
Referring now to
Referring now to
Referring now to
Referring now to
Referring now to
Referring now to
Referring now to
As shown, the drill 300 includes a guide member 302. The guide member 302 is configured to receive a guide wire (e.g., the guide wire 274) such that the drill 300 may rotate about the guide wire. The drill 300 may advance while the guide wire is positioned within the guide member 302 thereby enabling precision drilling of the center aperture, wherein the center of the center aperture is defined by the location that the pin 272 is inserted into the scapula. The guidewire further includes a drilling element 306. The drilling element 306 is configured to drill into a bone (e.g., the scapula). As shown, the drill element defines a width 303 such that the central aperture created by the drill 300 had a diameter equal to the width 303. According to various embodiments, the width 303 is between 2 mm and 10 mm. For example, the width 303 may be 5 mm, such that the central aperture has a diameter of 5 mm. Further, the drilling element 306 in combination with a stop 304 define a depth 301 (e.g., the vertical distance between the end of the drilling element 306 and the stop 304). For example, the drill 300 may create a central aperture that has a depth equal to the depth 301. According to various embodiments, the drill 300 will bottom out when the stop 304 contacts the scapula, thereby prevent the drill 300 from further drilling. According to various embodiments, the depth 301 is between 10 mm and 25 mm. For example, the depth 301 may be 15 mm. According to another example, the depth 301 may be 20 mm.
Referring now to
Referring now to
As shown, the guide 402 further includes a projection 472 that defines a diameter 471. According to various embodiments, the projection 472 may be sized to fit within the central aperture that was drilled into the scapula (e.g., using the drill 300). For example, the diameter 471 may be equal to, or substantially equal to (e.g., within 1%, within 2%, within 3%, etc.) the width 303 of the drilling element 306 discussed above with respect to
Referring now to
As shown, the guide 404 further includes a projection 474 that defines a diameter 473. According to various embodiments, the projection 474 may be sized to fit within the central aperture that was drilled into the scapula (e.g., using the drill 300). For example, the diameter 471 may be equal to, or substantially equal to (e.g., within 1%, within 2%, within 3%, etc.) the width 303 of the drilling element 306 discussed above with respect to
Referring now to
As shown, the guide 406 further includes a projection 476 that defines a diameter 475. According to various embodiments, the projection 476 may be sized to fit within the central aperture that was drilled into the scapula (e.g., using the drill 300). For example, the diameter 471 may be equal to, or substantially equal to (e.g., within 1%, within 2%, within 3%, etc.) the width 303 of the drilling element 306 discussed above with respect to
Referring now to
As shown, the guide 408 further includes a projection 478 that defines a diameter 477. According to various embodiments, the projection 478 may be sized to fit within the central aperture that was drilled into the scapula (e.g., using the drill 300). For example, the diameter 471 may be equal to, or substantially equal to (e.g., within 1%, within 2%, within 3%, etc.), the width 303 of the drilling element 308 discussed above with respect to
Referring now to
Referring now to
According to various embodiments, the diameter 551 is between 15 mm and 30 mm. For example, according to various embodiments, the diameter 551 may be 20 mm, 22.5 mm, 24 mm, or 26 mm. According to various embodiments, the first aperture and the second aperture may be the same size (e.g., diameter and depth). However, according to other embodiments, a different reamer may be used to drill the first aperture and the second aperture such that the first aperture and the second aperture define a different diameter and/or depth.
Referring now to
Referring now to
As shown, the guide 600 defines a first circular portion 606 that defines a first radius R3, a second circular portion 608 defining a second radius R4, and a third circular portion 110 defining a third radius R5. As shown, the guide 600 includes a projection 612 proximate the third circular portion 610 that extends from a lower surface 614 of the guide 600. According to various embodiments, the projection 612 is configured to be received by the central aperture 52 to at least partially secure the guide to the scapula. As shown, the guide 600 further defines a depth 605 corresponding with a distance the projection 612 extends from the remainder of the body of the guide 600. According to various embodiments, the depth 605 may be between 10 mm and 20 mm. For example, the depth 605 may be 15 mm. Further, the projection 612 defines a diameter 615. According to various embodiments, the diameter 615 is between 3 mm and 9 mm. For example, the diameter 615 may be 6 mm.
As shown, the guide 600 includes a first opening 622, a second opening 624 and a third opening 626. According to various embodiments, the first opening, the second opening, and/or the third opening 626 are configured to receive a drill. For example, guide holes may be drilled into the scapula through the guide 600 while the projection 612 is positioned within the central aperture 52. The guide holes may then be utilized to secure the baseplate 100 to the scapula via one or more bone screws, as is discussed further herein.
Referring now to
Referring now to
As shown, the drill 700 includes a handle 702 such that a surgeon may hold the drill 700. Further, the drill 700 includes a cutting element 705 configured to remove a portion of bone. According to various embodiments, the cutting element 704 defines a diameter. According to various embodiments, the diameter is between 2 mm and 6 mm. According to an example embodiment, the diameter is 4.5 mm such that the drill 700 is configured to create a 4.5 mm guide hole (e.g., to accommodate a 5 mm bone screw).
According to various embodiments, the soft tissue protector 750 is configured to receive the cutting element 704 of the drill. For example, as shown, the soft tissue protector 750 includes an opening 756 in a body 754 of the soft tissue protector 750. The opening 756 is sized to receive the cutting element 705. A surgeon may utilize a handle 752 to hold the soft tissue protector 750 while drilling a guide hole with the drill 700 though the body 754 of the soft tide protector. As shown, the soft tissue protector 750 includes a shoulder 758 configured to interface with a stop 706 of the drill 700. For example, stop 706 may interface with the shoulder 758 while drilling the guide hole to prevent over-drilling and to create a guide hole of a desired depth.
After the guide holes are drilled, the baseplate 100 (see
Referring now to
As shown, the baseplate 1000 includes a projection 1012 extending from the remainder of the baseplate. The projection includes an aperture 1024. The aperture 1024 is configured to receive a projection 1016 of the sphere 1014 to couple the sphere 1014 to the baseplate 1000. According to various embodiments, the aperture 1024 includes a Morse taper and the projection 1016 includes a counterpart Morse taper to secure the projection 1016 within the aperture 1024. According to various embodiments, the projection 1016 may be pressure fit into the aperture 1024. For example, the projection 1016 and/or the aperture 1024 may deform (e.g., elastically or plastically) when the projection 1016 is inserted into the aperture 1024 to secure the sphere 1014 to the baseplate 1000.
According to various embodiments, a gap 1018 exists between the sphere 1014 and the baseplate 1000. According to various embodiments, the projection 1016 may bottom out or otherwise be prevented from past a predetermined point within the aperture 1024 such that the gap 1018 is created. According to various embodiments, the gap 1018 may ease the difficulty of extraction of the sphere 1014 from the baseplate 1000. According to various embodiments, the gap 1018 may be between 1 mm and 6 mm. For example, the gap 1018 may be between 3 mm and 4 mm.
According to various embodiments, the baseplate 1000 may be manufactured from a biocompatible metal or a biocompatible plastic, such as polyethylene, or any combination thereof. Further, the sphere 1014 may be manufactured from a biocompatible metal or a biocompatible plastic, such as polyethylene, or any combination thereof. According to various embodiments, the projection 1016 is manufactured from the same material as a glenosphere portion 1026 (e.g., from a biocompatible metal). However, according to various embodiments, the projection 1016 is manufactured from a different material than the glenosphere portion 1026.
Referring now to
According to various embodiments, a gap exists between the artificial joint 800 and the baseplate after the baseplate is installed. According to various embodiments, the projection 1016 may bottom out or otherwise be prevented from past a predetermined point within the aperture such that the gap is created. According to various embodiments, the gap may ease the difficulty of extraction of the artificial joint 800 from the baseplate (e.g., as a part of converting the total shoulder replacement to a reverse total shoulder replacement). According to various embodiments, the gap may be between 1 mm and 6 mm. For example, the gap may be between 3 mm and 4 mm.
As shown, the artificial joint 800 includes a first circular portion 802, a second circular portion 804 and a third circular portion 806, which may align with the circular portions of the baseplate. Further, the artificial joint 800 defines an upper surface 812. According to various embodiments, the upper surface 812 is flat. However, according to various embodiments, the upper surface 812 may include a curvature (e.g., concave) to mimic the natural curvature of the glenoid.
Referring now to
The method 900 may be used to install any of the baseplates (e.g., baseplate 100, baseplate 1000, etc.) described herein. It should be appreciated that the method need not be performed in the order shown. Further, various processes may be omitted and additional processes may be added to the method 900.
At process 901, an incision is made. For example, and incision may be made proximate the shoulder of a patient to enable access to the scapula and the glenoid. According to various embodiments, process 901 may include removing a portion of bone from the scapula to prepare the glenoid for either a total shoulder replacement or a reverse total shoulder replacement.
At process 903, a sizer is selected. For example, one of the sizers 202, 204, 206, 208 may be selected. Process 903 may involve holding the various sizers proximate the glenoid. Once the surgeon determines the best for the patient, that sizer is selected. It should be appreciated that the size of the guides and baseplate that are selected later during the method 900 may be predetermined based on the sizer selected at process 903. For example, if the sizer 204 is selected, the guide 404 may be pre-selected and used later during the method 900.
At process 905, a guide wire is inserted through the back cortex of the sizer. For example, the guide wire 274 may be coupled to a pin 272 that is inserted through an opening (e.g., the third opening 232, 234, 236, 238) in a central portion of the guide and into the scapula such that the pin 272 is coupled to the scapula and the guide wire extends away from the scapula, as shown in
At process 909, a drill is inserted over the guide wire to and is used to create an aperture in the scapula. For example, the drill 300 may be used to create the central aperture 52 in the scapula. According to various embodiments, the pin inserted into the scapula defines the center of the aperture. At process 911, the guide wire are removed from the scapula. For example, the pin 272 may be removed from the scapula to decouple the guide wire 274 from the scapula.
At process 913, a guide with a projection is inserted into the aperture of the scapula. For example, the guide 402 having projection 472 may be inserted into the central aperture 52 of the scapula. Alternatively, any of the other guides discussed herein may be inserted into the aperture (e.g., the guide 404, the guide 406, the guide 408, etc.).
At process 915, pins are inserted into the guide and into the scapula. For example, the first guide pin 502 may be inserted into the scapula through the first opening 412 and/or the second pin 504 may be inserted into the scapula though the second opening 422 of the guide 402. At process 917, the guide is removed from the scapula. For example, the guide 402 may be removed from the scapula. After removing the guide, the one or more pins will remain positioned within the scapula (e.g., as shown in
At process 919, a first aperture and a second aperture are created using a reamer. For example, the first aperture 54 and the second aperture 56 may be created using the reamer 550. The reamer may rotate about the pins such that the first aperture and the second aperture are centered about the pins. After the first aperture and the second aperture are created, the pins may be removed from the scapula.
At process 921, a guide with a projection is inserted into the scapula. For example, the guide 600 may be inserted into the scapula such that the projection 612 is received within the central aperture 52. At process 923, guide holes are drilled into the scapula thought the guide. For example, the drill 700 may be inserted through the opening 756 in the soft tissue protector 750 and through the first opening 622 and/or the second opening 624 to create the guide holes in the scapula. According to various embodiments, a central guide hole may be drilled through the third opening 626. However, according to various other embodiments, the guide 600 may be removed, and an alternative guide 650 may be inserted such that the central guide hole may be drilled thought the central opening 652 of the guide 650.
At process 925, the baseplate is inserted into the scapula and secured to the scapula. For example, according to various embodiments, the bone screws 124 may be drilled into the respective guide hole through the first opening 116 and the second opening 118. The locking screw 128 may then subsequently be drilled into the respective guide hole through the third opening 120 of the baseplate 100. Once the baseplate 100 is secured, locking caps 126 may be installed onto the ends of the bone screws 124, which may reduce the risk of back out of the bone screws 124.
After the baseplate is installed into the scapula, an artificial joint may be coupled to the baseplate as a part of a total shoulder replacement surgery. Alternatively, a sphere may be coupled to the baseplate as a part of a reverse total shoulder replacement surgery.
As utilized herein with respect to structural features (e.g., to describe shape, size, orientation, direction, relative position, etc.), the terms “approximately,” “about,” “substantially,” and similar terms are meant to cover minor variations in structure that may result from, for example, the manufacturing or assembly process and are intended to have a broad meaning in harmony with the common and accepted usage by those of ordinary skill in the art to which the subject matter of this disclosure pertains. Accordingly, these terms should be interpreted as indicating that insubstantial or inconsequential modifications or alterations of the subject matter described and claimed are considered to be within the scope of the disclosure as recited in the appended claims.
It should be noted that the term “exemplary” and variations thereof, as used herein to describe various embodiments, are intended to indicate that such embodiments are possible examples, representations, or illustrations of possible embodiments (and such terms are not intended to connote that such embodiments are necessarily extraordinary or superlative examples).
The term “coupled” and variations thereof, as used herein, means the joining of two members directly or indirectly to one another. Such joining may be stationary (e.g., permanent or fixed) or moveable (e.g., removable or releasable). Such joining may be achieved with the two members coupled directly to each other, with the two members coupled to each other using a separate intervening member and any additional intermediate members coupled with one another, or with the two members coupled to each other using an intervening member that is integrally formed as a single unitary body with one of the two members. If “coupled” or variations thereof are modified by an additional term (e.g., directly coupled), the generic definition of “coupled” provided above is modified by the plain language meaning of the additional term (e.g., “directly coupled” means the joining of two members without any separate intervening member), resulting in a narrower definition than the generic definition of “coupled” provided above.
References herein to the positions of elements (e.g., “top,” “bottom,” “above,” “below”) are merely used to describe the orientation of various elements in the FIGURES. It should be noted that the orientation of various elements may differ according to other exemplary embodiments, and that such variations are intended to be encompassed by the present disclosure.
Although the figures and description may illustrate a specific order of method steps, the order of such steps may differ from what is depicted and described, unless specified differently above. Also, two or more steps may be performed concurrently or with partial concurrence, unless specified differently above.
It is important to note that any element disclosed in one embodiment may be incorporated or utilized with any other embodiment disclosed herein. The devices, systems and methods described herein may be embodied in other specific forms without departing from the characteristics thereof. The foregoing implementations are illustrative rather than limiting of the described systems and methods. The scope of the systems and methods described herein is thus indicated by the appended claims, rather than the foregoing description, and changes that come within the meaning and range of equivalency of the claims are embraced therein.
This application claims the benefit of and priority to U.S. Provisional Patent Application No. 63/344,243, filed May 20, 2022, which is incorporated herein by reference in its entirety.
Number | Date | Country | |
---|---|---|---|
63344243 | May 2022 | US |