This disclosure relates to orthopaedic procedures and, more particularly, to orthopaedic implant systems and methods for repairing bone defects and restoring functionality to a joint.
Joints may be established by at least one long bone. The patient may experience loss caused by fracturing or shattering of the bone due to trauma. A prosthesis may be utilized to restore functionality to the bone.
The prosthesis may be modular and may include one or more components may be selectable from a kit. The surgeon or assistant may assemble the components together to establish the prothesis. The components may include a stem insertable in the bone and may include a head for mounting an articulation member to restore functionality to a joint.
This disclosure relates to orthopaedic implant systems and methods for restoring functionality to a joint. The implant systems may include one or more components that may be configurable to set a distance or span of the respective implant system.
A component for an orthopaedic procedure of the present disclosure may include a main body extending along a longitudinal axis between a first end and a second end. The main body may be implantable in tissue. The main body may include a cavity that may extend inwardly from the first end. The main body may have a stepped geometry established by a plurality of tiers including a first tier that may have a first tapered periphery and a second tier that may have a second tapered periphery. The second tapered periphery may be established by circumferential faces of a first set of abutments distributed about the longitudinal axis. The cavity may include a first cavity level and a second cavity level distributed along the longitudinal axis. The first cavity level may include a periphery dimensioned to complement a profile of the first tapered periphery. The second cavity level may include a periphery dimensioned to complement a profile of the second tapered periphery. A set of cavity cutouts may extend outwardly from the periphery of the second cavity level. The set of cavity cutouts may be dimensioned to complement a profile of the first set of abutments.
An orthopaedic implant system of the present disclosure may include a set of components stackable to establish an assembly. Each of the components may include a main body extending along an axis between a first end and a second end. A cavity may extend inwardly from the first end. The main body may have a stepped geometry established by a plurality of tiers distributed along the axis. The plurality of tiers may include a first tier that may have a first tapered periphery and a second tier that may have a second tapered periphery. The second tapered periphery may be established by a first set of abutments. The cavity may include a first cavity level and a second cavity level distributed along the axis. A set of cavity cutouts may extend outwardly from a periphery of the second cavity level. Each adjacent pair of the components may be configurable to establish a collapsed configuration and an extended configuration of a respective portion of the assembly. The collapsed configuration may be established in response to inserting the first set of abutments into the set of cavity cutouts to establish a keyed interface such that a first Morse taper connection may be established between a periphery of the first cavity level and the first tapered periphery, but the extended configuration may be established in response to engagement between the periphery of the second cavity level to establish a second Morse taper connection that may block engagement between the periphery of the first cavity level and the first tapered periphery.
An orthopaedic implant system of the present disclosure may include a set of components stackable to establish an assembly. Each of the components may include a main body extending along an axis between a first end and a second end, and a cavity extending inwardly from the first end. The cavity may be dimensioned to receive the second end of an adjacent one of the components. The main body may have a stepped geometry established by a plurality of tiers distributed along the axis. The plurality of tiers may include a first tier and a second tier. The second tier may include a second periphery established by at least one abutment. The main body may include a circumferential wall having a plurality of recesses extending from the first end. The plurality of recesses may include at least one collapsed recess and at least one extended recess distributed about the axis. The at least one collapsed recess may extend a first distance and the at least one extended recess may extend a second distance that may be less than the first distance relative to the axis. Each adjacent pair of the components may be configurable to establish a collapsed configuration and an extended configuration of a respective portion of the assembly. The collapsed configuration may be established in response to inserting the at least one abutment into the at least one collapsed recess of an adjacent one of the components, but the extended configuration may be established in response to inserting the at least one abutment into the at least one extended recess of the adjacent one of the components.
A method of installing an orthopaedic implant system of the present disclosure may include selecting components from a set of components. Each of the components may include a main body that may have a stepped geometry established by a plurality of tiers distributed along an axis between a first end and a second end. The plurality of tiers may include a first tier that may have a first tapered periphery and a second tier that may have a second tapered periphery. The second tapered periphery may be established by a first set of abutments. The main body may include a cavity having a first cavity level and a second cavity level distributed along the axis. A set of cavity cutouts may extend outwardly from a periphery of the second cavity level. Each adjacent pair of the components may be configurable to establish a collapsed configuration and an extended configuration of a respective portion of an assembly. The collapsed configuration may be established in response inserting the first set of abutments of the adjacent component into the set of cavity cutouts to establish a keyed interface and then engaging a periphery of the first cavity level with the first tapered periphery of the adjacent component to establish a first Morse taper connection, but the extended configuration may be established in response to engagement between the periphery of the second cavity level and the first set of abutments of the adjacent component to establish a second Morse taper connection. The method may include configuring each adjacent pair of the selected components in the collapsed configuration or the extended configuration to establish the respective portion of the assembly.
The present disclosure may include any one or more of the individual features disclosed above and/or below alone or in any combination thereof.
The various features and advantages of this disclosure will become apparent to those skilled in the art from the following detailed description. The drawings that accompany the detailed description can be briefly described as follows.
This disclosure relates to orthopaedic implant systems and methods for repairing bone defects and restoring functionality to various joints. The disclosed implant systems described herein may include a modular prosthesis that may be adapted to facilitate reconstruction or repair of a bone or joint that may be caused by trauma to the patient. A long bone may have relatively severe proximal bone loss due to fracturing (e.g., 3 part or 4 part fractures) or shattering of the bone due to trauma, or a tumor in the bone, for example. Bone loss may be on the order of approximately one-third of the bone that may indicate a reconstruction procedure. The disclosed implant systems, components and methods may be utilized to restore functionality to long bones, such as a humerus or femur. The disclosed implant systems and components may be utilized to restore functionality to a shoulder joint, including anatomical and reverse shoulder procedures. The implant systems and components may be utilized to restore functionality to other bones and joints, such as a knee, hip, elbow, wrist or ankle.
The surgeon may encounter a range of anatomy and conditions in planning and performing orthopaedic procedures. The anatomy may vary due to differences in the patient population, including sex, age, ethnicity, etc. Defects in the bone and joint and trauma may contribute to the variability and may indicate removal and/or replacement of portions of the bone to restore functionality. Stacking multiple identical segments with Morse taper connections may result in an assembly which may be limited to a fixed total height.
The disclosed implant systems may be configurable to establish a specified dimension, such as a length, height or span between two components of the respective implant system, such as an articulation surface and stem implantable in bone. The disclosed components (e.g., segments) may be arranged in various configurations to establish a specified dimension of the implant system incorporating the components. The surgeon or assistant may select the components from a kit and may configure the components interoperative or preoperatively according to a surgical plan. Individual components may be rotated or “clocked” relative to one another to achieve differing engagement positions or configurations, which may improve the ability to create modular assemblies of various total heights, lengths or other configured dimensioned. The components may be coupled together to establish an assembly, which may be generally in the shape of an elongated shaft. The components establishing the assembly may be the same or may differ.
The components may have a main body including two or more tiered male taper sections that establish a generally stepped shape profile. The male tapers may be sized for press fitting into respective female tapers established along a cavity on an opposite end portion of an adjacent one of the components. A crown of fins interspersed may be established along an end of the main body. Recesses between the fins may be dimensioned to engagement abutments along a periphery of the main body to facilitate stability and rotational alignment for full taper engagement between the selected female taper and respective male taper. Two or more of the recesses may differ in height. The components may be rotationally positioned such that selected recesses engage the abutments along the periphery of the main body and/or a selected male taper engages a respective female taper along the cavity to establish a first (e.g., fully collapsed) configuration or a second (e.g., extended) configuration.
The disclosed components may be utilized to establish a controllably extendable assembly. The components may be stacked to any level of modularity and may be utilized to establish various levels of height or length extension. Utilizing the techniques disclosed herein, the surgeon or assistance may configure the components in a manner that more precisely positions one or more features of the implant system to restore functionality of a bone or joint, which may reduce an amount of native bone or other tissue removed from the patient and which may improve mobility and healing.
A component for an orthopaedic procedure of the present disclosure may include a main body extending along a longitudinal axis between a first end and a second end. The main body may be implantable in tissue. The main body may include a cavity that may extend inwardly from the first end. The main body may have a stepped geometry established by a plurality of tiers including a first tier that may have a first tapered periphery and a second tier that may have a second tapered periphery. The second tapered periphery may be established by circumferential faces of a first set of abutments distributed about the longitudinal axis. The cavity may include a first cavity level and a second cavity level distributed along the longitudinal axis. The first cavity level may include a periphery dimensioned to complement a profile of the first tapered periphery. The second cavity level may include a periphery dimensioned to complement a profile of the second tapered periphery. A set of cavity cutouts may extend outwardly from the periphery of the second cavity level. The set of cavity cutouts may be dimensioned to complement a profile of the first set of abutments.
In implementations, the first tier may include a tapered protrusion establishing the first tapered periphery. The tapered protrusion may extend to the second end.
In implementations, the plurality of tiers may include a third tier having a periphery established by a circumferential wall and a second set of abutments extending axially from the circumferential wall towards the second end. The second set of abutments may be distributed about the longitudinal axis. The circumferential wall may include first and second sets of recesses that may extend from the first end. The first set of recesses may be interspersed with the second set of recesses. The first set of recesses may have a first contour dimensioned to complement a profile of the second set of abutments. The second set of recesses may have a second, different contour dimensioned to complement a lesser portion of the profile of the second set of abutments.
In implementations, the first set of recesses may extend a first distance, and the second set of recesses may extend a second distance that may be less than the first distance relative to the longitudinal axis. A first set of cutouts may be interspersed with the first set of abutments about the longitudinal axis. The first set of recesses may be at least partially circumferentially aligned with the second set of abutments. The second set of recesses may be at least partially circumferentially aligned with the first set of cutouts relative to the longitudinal axis.
In implementations, the first set of abutments may be at least partially circumferentially aligned with the second set of abutments relative to the longitudinal axis.
In implementations, the main body may be dimensioned to interconnect a stem component insertable in bone and an articulation component adapted to mate with an opposed articular surface of an adjacent implant or an adjacent bone.
An orthopaedic implant system of the present disclosure may include a set of components stackable to establish an assembly. Each of the components may include a main body extending along an axis between a first end and a second end. A cavity may extend inwardly from the first end. The main body may have a stepped geometry established by a plurality of tiers distributed along the axis. The plurality of tiers may include a first tier that may have a first tapered periphery and a second tier that may have a second tapered periphery. The second tapered periphery may be established by a first set of abutments. The cavity may include a first cavity level and a second cavity level distributed along the axis. A set of cavity cutouts may extend outwardly from a periphery of the second cavity level. Each adjacent pair of the components may be configurable to establish a collapsed configuration and an extended configuration of a respective portion of the assembly. The collapsed configuration may be established in response to inserting the first set of abutments into the set of cavity cutouts to establish a keyed interface such that a first Morse taper connection may be established between a periphery of the first cavity level and the first tapered periphery, but the extended configuration may be established in response to engagement between the periphery of the second cavity level to establish a second Morse taper connection that may block engagement between the periphery of the first cavity level and the first tapered periphery.
In implementations, the first tapered periphery of the first tier may be established by a tapered protrusion terminating at the second end.
In implementations, circumferentially opposed engagement faces bounding the respective cavity cutouts may be dimensioned to limit relative rotation between the adjacent components in the collapsed configuration, but not in the extended configuration, in response to engagement between the first set of abutments and the respective engagement faces.
In implementations, the plurality of tiers may include a third tier. The third tier may include a second set of abutments that may be circumferentially distributed about the axis and a circumferential wall having a plurality of recesses that may extend from the first end. The plurality of recesses may include a set of extended recesses that may be interspersed with a set of collapsed recesses. The collapsed configuration may be established in response inserting the second set of abutments of the adjacent component into the set of collapsed recesses, but the extended configuration may be established in response to inserting the second set of abutments of the adjacent component into the set of extended recess.
In implementations, the set of collapsed recesses may have a first contour dimensioned to complement a profile of the second set of abutments. The set of extended recesses may have a second, different contour dimensioned to complement a lesser portion of the profile of the second set of abutments.
In implementations, the second set of abutments may be at least partially circumferentially aligned with the set of collapsed recesses, but may be circumferentially offset from the set of extended recesses relative to the axis.
In implementations, a stem component may be insertable into bone. An articulation component may be adapted to mate with an opposed articular surface of an adjacent implant or an adjacent bone. The assembly may interconnect the stem component and the articulation component in an installed position.
An orthopaedic implant system of the present disclosure may include a set of components stackable to establish an assembly. Each of the components may include a main body extending along an axis between a first end and a second end, and a cavity extending inwardly from the first end. The cavity may be dimensioned to receive the second end of an adjacent one of the components. The main body may have a stepped geometry established by a plurality of tiers distributed along the axis. The plurality of tiers may include a first tier and a second tier. The second tier may include a second periphery established by at least one abutment. The main body may include a circumferential wall having a plurality of recesses extending from the first end. The plurality of recesses may include at least one collapsed recess and at least one extended recess distributed about the axis. The at least one collapsed recess may extend a first distance and the at least one extended recess may extend a second distance that may be less than the first distance relative to the axis. Each adjacent pair of the components may be configurable to establish a collapsed configuration and an extended configuration of a respective portion of the assembly. The collapsed configuration may be established in response to inserting the at least one abutment into the at least one collapsed recess of an adjacent one of the components, but the extended configuration may be established in response to inserting the at least one abutment into the at least one extended recess of the adjacent one of the components.
In implementations, the at least one abutment may be axially spaced apart from the set of recesses relative to the axis.
In implementations, the at least one abutment may include a set of abutments distributed about the axis. The at least one collapsed recess may include a set of collapsed recesses and the at least one extended recess may include a set of extended recesses interspersed with the set of collapsed recesses relative to the axis. The collapsed configuration may be established in response to inserting the set of abutments into the set of collapsed recesses of the adjacent one of the components, but the extended configuration may be established in response to inserting the set of abutments into the set of extended recesses of the adjacent one of the components.
In implementations, the set of abutments may be at least partially circumferentially aligned with the set of collapsed recesses relative to the axis.
A method of installing an orthopaedic implant system of the present disclosure may include selecting components from a set of components. Each of the components may include a main body that may have a stepped geometry established by a plurality of tiers distributed along an axis between a first end and a second end. The plurality of tiers may include a first tier that may have a first tapered periphery and a second tier that may have a second tapered periphery. The second tapered periphery may be established by a first set of abutments. The main body may include a cavity having a first cavity level and a second cavity level distributed along the axis. A set of cavity cutouts may extend outwardly from a periphery of the second cavity level. Each adjacent pair of the components may be configurable to establish a collapsed configuration and an extended configuration of a respective portion of an assembly. The collapsed configuration may be established in response inserting the first set of abutments of the adjacent component into the set of cavity cutouts to establish a keyed interface and then engaging a periphery of the first cavity level with the first tapered periphery of the adjacent component to establish a first Morse taper connection, but the extended configuration may be established in response to engagement between the periphery of the second cavity level and the first set of abutments of the adjacent component to establish a second Morse taper connection. The method may include configuring each adjacent pair of the selected components in the collapsed configuration or the extended configuration to establish the respective portion of the assembly.
In implementations, the extended configuration may be established such that the second Morse taper connection may block engagement between the periphery of the first cavity level and the first tapered periphery of the adjacent component.
In implementations, the step of establishing the keyed interface may occur such that circumferentially opposed engagement faces bounding the respective cavity cutouts may limit relative rotation between the adjacent components with respect to the axis.
In implementations, the plurality of tiers may include a third tier. The second tier may interconnect the first and third tiers. The third tier may include at least one abutment that may be established along a periphery of the main body. The main body may include at least one extended recess and at least one collapsed recess extending from the first end. The collapsed configuration may be established in response to inserting the at least one abutment of the adjacent component into the at least one collapsed recess, but the extended configuration may be established in response to inserting the at least one abutment of the adjacent component into the at least one extended recess.
In implementations, the first set of abutments may be at least partially circumferentially aligned with a second set of abutments relative to the axis.
In implementations, the selecting step may include selecting at least three of the components from the set of components. The configuring step may include configuring an adjacent pair of the selected components in the collapsed configuration but configuring another adjacent pair of the selected components in the extended configuration to establish the respective portions of the assembly.
In implementations, the method may include securing one of the selected components of the assembly to a stem component. The method may include inserting the stem component into bone. The method may include securing another one of the selected components of the assembly to an articulation component. The articulation component may be adapted to mate with an opposed articular surface of an adjacent implant or an adjacent bone.
The implant system 20 can include one or more implant components 22. Two or more of the components 22 may be releasably secured to each other to establish an assembly 24. Two or more of the components 22 may be integrally formed with each other. The implant system 20 may include a set of the components 22. The components 22 may be stackable or otherwise arranged to establish the assembly 24 and/or other portions of the implant system 20. The implant system 20 may include a stem component 26 and articulation component 28. The stem component 26 may be insertable into bone B (shown in dashed lines in
The articulation component 28 may include an articular surface 31. The articular surface 31 may be adapted to mate with an opposed articular surface AS (shown in dashed lines in
The assembly 24 may be configured to interconnect two or more components 22 of the implant system 20 at a specified distance from each other in an installed position, such as the stem component 26 and the articulation component 28. The specified distance may be determined intraoperatively or preoperatively to establish a position of the system 20 in the patient according to a surgical plan.
The assembly 24 can be established by a set of components (e.g., links, couplings or segments) 32. The components 32 may be arranged to establish various configurations of the implant system 20. Adjacent pairs of components 32 may be configured or arranged in two or more distinct configurations, including at least a first (e.g., collapsed) configuration and a second (e.g., extended) configuration. In the implementation of
The components 32 may be provided to the surgeon as a kit and may be dimensioned according to various shapes and sizes. The surgeon or assistant may configure and/or reconfigure the components 32 preoperatively and/or intraoperatively according to a surgical plan. Although a total of six of the components 32 is illustrated in configurations of the assembly 24 of
Various techniques may be utilized to construct the components 32. Each component 32 may be made of metallic and/or non-metallic materials. Each component 32 may be a monolithic or unitary structure or may include two or more portions mechanically attached or otherwise secured to each other.
Referring to
The component 132 can include a cavity 140 dimensioned to receive an adjacent component, such as another instance of the component 132 and/or one of the components 22 of the implant system 20. The cavity 140 may extend inwardly from the first end 136 of the main body 134 and may terminate prior to the second end 138 (see, e.g.,
The first end 136 of the main body 134 may establish a first width W1, and the second end 138 may establish a second width W2, as illustrated in the implementation of
The main body 134 of the component 132 may have a generally stepped geometry established by a plurality of tiers 142 (see, e.g.,
The tiers 142 of the main body 134 may include at least a first (e.g., base or bottom) tier 142-1 and a second (e.g., top) tier 142-2. The tiers 142 may include at least one, or more than one, intermediate tier 142-3. The intermediate tier(s) 142-3 may be established between the first tier 142-1 and second tier 142-2. The first tier 142-1, second tier 142-2, and intermediate tier(s) 142-3 may be distributed along the axis X between the first end 136 and second end 138 of the main body 134. The intermediate tier(s) 142-3 may interconnect the first tier 142-1 and second tier 142-2. The stepped geometry of the main body 134 may be established such that the tiers 142 decrease in maximum width from the first tier 142-1 to the second tier 142-2. The component 132 may include a single intermediate tier 142-3. In implementations, the component 132 includes two or more intermediate tiers 142-3 differing in width to establish a stepped geometry of the main body 134. In other implementations, the intermediate tier(s) 142-3 may be omitted, and the second tier 142-2 may extend directly from the first tier 142-1.
The first tier 142-1 of the main body 134 may include a circumferential wall 144 extending circumferentially about the axis X. The circumferential wall 144 may establish the first end 136. The circumferential wall 144 may have a substantially cylindrical geometry (see, e.g.,
The second tier 142-2 of the main body 134 may include a protrusion 146. The protrusion 146 may establish the second end 138 of the main body 134. In implementations, the protrusion 146 may be a tapered protrusion that terminates at the second end 138.
Each of the tiers 142 of the main body 134 may have a respective periphery 143. The first tier 142-1 may have a first periphery 143-1. The first periphery 143-1 may be established by the circumferential wall 144. The second tier 142-2 may have a second periphery 143-2. The second periphery 143-2 may be established the protrusion 146. Each intermediate tier 142-3 may have an intermediate periphery 143-3. Each of the peripheries 143 may have various geometries and may have various surface features for establishing configurations of an assembly incorporating one or more instances of the component 132, such as the assembly 24 of
The main body 134 may include at least one or more abutments 148. The abutments 148 may be established along the periphery 143 of the main body 134 of the component 132. In implementations, the main body 134 may include a first (e.g., base) set of abutments 148-1 and/or a second (e.g., intermediate) set of abutments 148-2.
The first and second sets of abutments 148-1, 148-2 may be arranged relative to each other for establishing various configurations of an assembly incorporating one or more instances of the component 132, such as the assembly 24 of
The first tier 142-1 may include the first set of abutments 148-1. The first periphery 143-1 may be established by the first set of abutments 148-1. The first set of abutments 148-1 may extend axially from the circumferential wall 144 in a direction towards the second end 138. In implementations, the first set of abutments 148-1 may be dimensioned to terminate at the intermediate tier 142-3. The abutments 148-1 may be dimensioned to taper in width in a direction towards the intermediate tier 142-3 and/or second end 138 relative to the axis X (see, e.g.,
One or more of the abutments 148 may be spaced apart from both the first end 136 and second end 138, such as the second set of abutments 148-2. The intermediate periphery 143-3 may be established by the second set of abutments 148-2. In implementations, the second tier 142-2 may include the second set of abutments 148-2.
Each of the first set of abutments 148-1 may have an arcuate face dimensioned to follow a substantially cylindrical profile (see, e.g.,
The periphery 143 of the main body 134 may include one or more cutouts 150. The cutouts 150 may be established between adjacent pairs of the abutments 148. In implementations, the cutouts 150 may include a first set of cutouts 150-1 and a second set of cutouts 150-2. The first set of cutouts 150-1 may be interspersed with the first set of abutments 148-1 about the axis X. The second set of cutouts 150-2 may be interspersed with the second set of abutments 148-2 about the axis X. The first set of cutouts 150-1 may be at least partially circumferentially aligned with the second set of cutouts 150-2 relative to the axis X (see, e.g.,
The intermediate periphery 143-3 may be dimensioned to taper or slope between the first tier 142-1 and the second tier 142-2 along circumferential faces 145 of the second set of abutments 148-2 (see, e.g.,
The component 132 may include one or more recesses 152. The recesses 152 may be dimensioned to cooperate with another (e.g., adjacent) instance of the component 132 to establish various configurations of the assembly, such as the assembly 24. The recesses 152 may be circumferentially distributed about the axis X. The recesses 152 may be established by one or more of the tiers 142 of the main body 134. In implementations, the circumferential wall 144 may include one or more of the recesses 152. The recesses 152 may extend axially from the first end 136 in a direction towards the second end 138 relative to the axis X. The recesses 152 may be dimensioned to terminate prior to an axial position of the abutments 148 relative to the axis X.
A dimension of two or more recesses 152 may differ from each other to establish two or more distinct configurations of an assembly incorporating one or more of the components 132, such as the assembly 24. One or more of the recesses 152 may differ in length or height from at least one or more other recesses 152 relative to the axis X to establish a span of the configured assembly.
The recesses 152 may include at least one (e.g., collapsed or reduced) recess 152-1 and at least one (e.g., extended or heightened) recess 152-2. The collapsed recess 152-1 can be partially axially aligned and/or circumferentially offset from the extended recess 152-2 of the set of recesses 152 relative to the axis X (e.g.,
The component 132 may have various quantities of the recesses 152 to engage the abutments 148. A total quantity of the recesses 152 may be a multiple of a total quantity of the first set of abutments 148-1. In implementations, the total quantity of the recesses 152 is at least twice the total quantity of the first set of abutments 148-1. A total quantity of the first set of recesses 152-1 and/or a total quantity of the second set of recesses 152-2 may be equal to the total quantity of the first set of abutments 148-1.
The abutments 148 may taper in width a direction towards the second end 138 (see, e.g.,
The recesses 152 may have various geometries to complement one or more of the abutments 148. Each recess 152 of the first set of collapsed recesses 152-1 may have a first contour dimensioned to complement a profile of the first set of abutments 148-1. Each recess 152 of the second set of extended recesses 152-2 may have a second contour dimensioned to complement a profile of the first set of abutments 148-1. The second contour of the extended recesses 152-2 may differ from the first contour of the collapsed recesses 152-1. In implementations, the second contour of the extended recesses 152-2 may be dimensioned to complement a lesser portion of the profile of the first set of abutments 148-1 than the first contour of the collapsed recesses 152-1 such that the component 132 may sit at different heights on another component 132. The second profile of the extended recesses 152-2 may be dimensioned to substantially correspond to a lesser (e.g., terminal) portion of the first profile of the collapsed recesses 152-1. In the implementation of
The recesses 152 may be established relative to the position of the abutments 148. In implementations, the first set of collapsed recesses 152-1 may be at least partially circumferentially aligned with the first set of abutments 148-1 relative to the axis X (e.g.,
Referring to
The cavity 140 may have various geometries to cooperate with an adjacent instance of the component 132. The cavity 140 may include one or more cavity levels (e.g., tiers) 154 distributed along the axis X. The cavity levels 154 may include a first cavity level 154-1, second cavity level 154-2 and/or third cavity level 154-3 distributed along the axis X. In other implementations, the component 132 may include fewer or more than a total of three cavity levels 154, such as only one or two cavity levels 154.
The cavity 140 may be dimensioned such that the cavity levels 154 establish a generally stepped geometry decreasing in maximum width. The cavity levels 154 may decrease in maximum width from the first cavity level 154-1 to the third cavity level 154-3 (e.g.,
The cavity levels 154 may be dimensioned to complement one or more features of the component 132. A surface of the third cavity level 154-3 may be dimensioned to mate with a surface of the protrusion 146 of another instance of the component 132 to establish an interference fit for opposing relative movement. The third cavity level 154-3 may have a third tapered cavity periphery 157 (e.g.,
A surface of the second cavity level 154-2 may be dimensioned to mate with a surface of the second set of abutments 148-2 of another instance of the component 132 to establish an interference fit for opposing relative movement. The second cavity level 154-2 may have a second cavity periphery 158 (e.g.,
The cavity 140 may include a set of cavity cutouts 156. Circumferentially opposed engagement faces 162 may bound the respective cavity cutouts 156 (
The set of components 232 may be configured or arranged in a stacked relationship along an assembly axis A of the assembly 224. The components 232 may be dimensioned such that (e.g., longitudinal) axes X of the components 232 may be substantially aligned along the assembly axis A in an installed position. In the implementation of
Each pair of adjacent components 232 may be configurable to establish a first (e.g., collapsed) configuration and/or a second (e.g., extended) configuration of a respective portion of the assembly 224. The collapsed configuration may establish a first span of the adjacent pair of components 232. The extended configuration may establish a second, relatively greater span of the adjacent pair of components 232. In the configuration of
The collapsed configuration may be established in response to inserting the second end 238 of the adjacent component 232 into the cavity 240 of the component 232 (see, e.g., second end 338 of
Insertion of the first set of abutments 248-1 into a selected one of the collapsed recesses 252-1 and the extended recesses 252-2 may establish a keyed interface, which may limit relative rotation and facilitate alignment between the components 232.
Each component 332 may include a plurality of abutments 348. The abutments 348 may include a first set of abutments 348-1 and a second set of abutments 348-2. Each component 332 may include a plurality of recesses 352. The recesses 352 may include a first set of (e.g., collapsed) recesses 352-1 and a second set of (e.g., extended) recesses 352-2.
Each abutment 348 of the first set of abutments 348-1 of the component 332-2/332-3 may be insertable into a selected one of the recesses 352 of the adjacent component 332-1/332-2, such as one of the collapsed recesses 352-1, to establish a collapsed configuration of the adjacent pair of components 332-1/332-2, 332-2/332-3. A main body 334 of the component 332 may be dimensioned such that surfaces bounding the collapsed recess 352-1 sit on the respective abutment 348-1 in response to inserting the abutment 348-1 into the collapsed recess 352-1 to establish the collapsed configuration. A circumferential wall 344 of the component 332-1/332-2 establishing the collapsed recess 352-1 may be dimensioned to straddle the respective abutment 348-1 in the collapsed configuration to limit relative rotation between the components 332-1/332-2, 332-2/332-3 with respect to the assembly axis A.
Referring to
Referring to
The set of cavity cutouts 356 of the component 332-1/332-2 may be dimensioned to mate with the second set of abutments 348-2 of the adjacent components 332-2/332-3 in the collapsed configuration, but not in the extended configuration (see, e.g., cavity cutouts 456 of
The configuration of the assembly 324 of
Each component 432 may include a plurality of abutments 448 including a first set of abutments 448-1 and a second set of abutments 448-2. Each component 432 may include a plurality of recesses 452 including a first set of (e.g., collapsed) recesses 452-1 and a second set of (e.g., extended) recesses 452-2.
Each abutment 448 of the first set of abutments 448-1 of the component 432-2/432-3 may be insertable into a selected one of the recesses 452 of the adjacent component 432-1/432-2, such as one of the extended recesses 452-2, to establish an extended configuration of the adjacent pair of components 432-1/432-2, 432-2/432-3. The main body 434 may be dimensioned such that surfaces bounding the extended recess 452-2 sit on the respective abutment 448-1 in response to inserting the abutment 448-1 into the extended recess 452-2 to establish the extended configuration. A circumferential wall 444 of the component 432-1/432-2 establishing the extended recess 452-2 may be dimensioned to straddle the respective abutment 448-1 in the extended configuration to limit relative rotation between the components 432-1/432-2, 432-2/432-3 with respect to assembly axis A.
Referring to
In the extended configuration of the components 432-2, 432-3 of
At step 580A, one or more components may be provided to the surgeon or assistant. The components may include any of the components disclosed herein, including the components 22, 122, 222, 322, 422. The components may be provided to the surgeon as a kit. The kit may include components of various shapes, sizes and quantities. The components may be selected from the kit to establish a specified configuration of the implant system according to an anatomy of the patient and other aspects of a surgical plan.
At step 580B, the surgeon or assistant may select one or more components from the set of components. The set of components may be predetermined according to a surgical plan such that the surgeon or assistant selects every component of the set. The surgeon or assistant may select fewer than every component of the set and/or may remove one or more of the components preoperatively and/or intraoperatively during configuration of the respective implant system.
Referring to
At step 580C, the surgeon or assistant may configure the selected components to establish the implant system. The components 222 may include one or more components 232 configurable to establish an assembly 224. Each adjacent pair of the components 232 may be arranged in at least two or more distinct configurations, including at least a first (e.g., collapsed) configuration and/or a second (e.g., extended) configuration. Each adjacent pair of the components 232 may be configurable to establish at least a first (e.g., collapsed) configuration and a second (e.g., extended) configuration of a respective portion of the assembly 224. Step 380C may include configuring or arranging each adjacent pair of the selected components 232-1/232-2, 232-2/232-3 in either the collapsed configuration at step 580C-1 or the extended configuration at step 580C-2 to establish the respective portion of the assembly 224.
Adjacent pairs of the components may be arranged in the same configuration (see, e.g.,
Various techniques may be utilized to establish the configurations of the selected components, including any of the techniques and arrangements disclosed herein. Referring to
Referring to
Referring to
Referring to
Referring to
Referring to
Referring to
At step 580E, the components 22 may be positioned in the patient prior to, during and/or subsequent to steps 580C and 580D. The position and/or orientation of the components 22 may specified in a surgical plan or may be determined intraoperatively. Step 580E may include inserting the stem component 26 into bone B (shown in dashed lines in
Step 580E may include securing another one of the selected components 32 of the assembly 24 to the articulation component 28. The articulation component 28 may be adapted to mate with an opposed articular surface AS of an adjacent implant or an adjacent bone to restore functionality to a joint (see, e.g.,
The novel implant systems and methods of this disclosure may provide versatility in repairing bone defects restoring functionality to bones and/or joints. The components may be provided to the surgeon as a kit. The surgeon may select one or more of the components from the kit and may configure the components to establish an assembly incorporated into the implant system. The assembly may be configured according to a specified dimension of the implant system, which may be determined preoperatively or intraoperatively. The components in the kit utilized to establish the assembly may be identical, which may reduce complexity of the system, or may differ in geometry. The components may be arranged in two or more configurations, such as a collapsed configuration and an extended configuration, in response to engagement between features along the component and another adjacent component. The features may be used to establish one or more tapered connections and/or keyed interfaces to limit relative movement between the adjacent components, which may improve stability and alignment between the components and improve healing of the patient.
Although the different non-limiting embodiments are illustrated as having specific components or steps, the embodiments of this disclosure are not limited to those particular combinations. It is possible to use some of the components or features from any of the non-limiting embodiments in combination with features or components from any of the other non-limiting embodiments.
It should be understood that like reference numerals identify corresponding or similar elements throughout the several drawings. It should further be understood that although a particular component arrangement is disclosed and illustrated in these exemplary embodiments, other arrangements could also benefit from the teachings of this disclosure.
The foregoing description shall be interpreted as illustrative and not in any limiting sense. A worker of ordinary skill in the art would understand that certain modifications could come within the scope of this disclosure.
This application claims the benefit of U.S. Provisional Application No. 63/400,124 filed on Aug. 23, 2022, which is incorporated herein by reference in its entirety.
Number | Date | Country | |
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63400124 | Aug 2022 | US |