FEMORAL AUGMENTS FOR USE WITH KNEE JOINT PROSTHESIS

A femoral augment, or set of augments, for use with a knee joint prosthesis, where the femoral augment includes a main body portion, an aperture formed within the main body portion and extending in a generally distal/proximal direction, and a pair of legs extending outwardly from said main body portion in a generally posterior direction. In the preferred embodiment, the aperture is configured to receive a stem extension implant, and to allow it to pass through. Additionally, the legs of the femoral augment are preferably configured to be seated proximal of a proximal side of a pair of condylar portions of a femoral component of a knee joint prosthesis. The present invention is intended for situations in which the distal portion of the femur is defective, and it provides a method and devices that allow for preservation of healthy peripheral bone, while still providing the necessary augmentation to the distal portion of the femur. 113.-. (canceled)14. A femoral implant system implantable in a distal femur of a patient , the femoral implant system comprising:a femoral component that is implantable in the distal femur of the patient as part of a knee joint prosthesis, the femoral component comprising a stem component to facilitate securing the femoral component to the distal femur, a medial condyle, and a lateral condyle, the medial condyle and the lateral condyle each including a proximal side; and a proximal body portion through which the stem component can be received;', 'a lateral leg that extends distally from the proximal body portion to be seated proximally of the proximal side of the lateral condyle when the femoral component and the femoral augment are implanted in the distal femur;', 'a medial leg that extends distally from the proximal body portion to be seated proximally of the proximal side of the medial condyle when the femoral component and the femoral augment are implanted in the distal femur; and', 'a web portion,', 'wherein the lateral leg, the medial ...

PROSTHETIC IMPLANT SUPPORT STRUCTURE

A prosthetic system that includes a prosthetic implant and a support structure secured to an inner surface of a cavity of a bone is disclosed. The support structure defines a channel that extends through the length of the support structure. The prosthetic implant is received in the channel, and a portion of the prosthetic implant is secured to an inner surface of the support structure by an adhesive. The support structure may comprise a pair of partially hemispherical components arranged in spaced apart relationship thereby defining the channel between the pair of components. 1. (canceled)2. A method for supporting a prosthetic implant in a cavity in an end of a bone , the method comprising:providing a prosthetic implant with a stem component;providing a hollow sleeve formed separately from said stem component for subsequent connection to said stem component, wherein said hollow sleeve is formed with a bone ingrowth-receptive material with a porous structure for encouraging bone ingrowth into the hollow sleeve, and wherein said hollow sleeve provides an axial channel that extends through the length of the hollow sleeve; andimplanting the hollow sleeve and the prosthetic implant in said cavity, wherein the stem component of the prosthetic implant is received in said axial channel.3. The method of claim 2 , wherein said hollow sleeve claim 2 , despite being formed with a bone ingrowth-receptive material with a porous structure claim 2 , is capable of being impacted into said cavity.4. The method of claim 2 , wherein said implanting includes impacting the hollow sleeve into said cavity.5. The method of claim 4 , wherein said implanting includes impacting the hollow sleeve into said cavity and thereafter moving the stem component into said axial channel.6. The method of claim 2 , further comprising securing the stem component to an interior surface of said axial channel.7. The method of claim 6 , wherein said hollow sleeve has an established size and shape prior to ...

Prosthetic implant support structure

A prosthetic system that includes a prosthetic implant and a support structure secured to an inner surface of a cavity of a bone is disclosed. The support structure defines a channel that extends through the length of the support structure. The prosthetic implant is received in the channel, and a portion of the prosthetic implant is secured to an inner surface of the support structure by an adhesive. The support structure may comprise a pair of partially hemispherical components arranged in spaced apart relationship thereby defining the channel between the pair of components.

Prosthetic implant support structure

A prosthetic system that includes a prosthetic implant and a support structure secured to an inner surface of a cavity of a bone is disclosed. The support structure defines a channel that extends through the length of the support structure. The prosthetic implant is received in the channel, and a portion of the prosthetic implant is secured to an inner surface of the support structure by an adhesive. The support structure may comprise a pair of partially hemispherical components arranged in spaced apart relationship thereby defining the channel between the pair of components.

PROSTHETIC IMPLANT SUPPORT STRUCTURE

A prosthetic system that includes a prosthetic implant and a support structure secured to an inner surface of a cavity of a bone is disclosed. The support structure defines a channel that extends through the length of the support structure. The prosthetic implant is received in the channel, and a portion of the prosthetic implant is secured to an inner surface of the support structure by an adhesive. The support structure may comprise a pair of partially hemispherical components arranged in spaced apart relationship thereby defining the channel between the pair of components. 1. A method comprising:preparing an implant location for insertion of a prosthetic support structure for augmenting a prosthetic implant; a convex generally semispherical first surface, configured to engage a bony structure at an implant location, the first surface defining a less than hemispherical first surface area facing in an outward direction from a first semispherical center location that is away from and defined by the first surface; and', 'a concave generally semispherical second surface, configured to receive and support at least a portion of the prosthetic implant, the second surface defining a less than hemispherical second surface area facing in an inward direction toward a second semispherical center location that is away from and defined by the second surface; and, 'placing the prosthetic support structure at the prepared implant location, wherein the prosthetic support structure includesfixating the prosthetic support structure at the prepared implant location, wherein fixating the prosthetic support structure includes providing the second surface for receiving the prosthetic implant.2. The method of claim 1 , comprising measuring the prepared implant location to assist in selection of the prosthetic support structure from a plurality of prosthetic support structures.3. The method of claim 2 , wherein measuring the prepared implant location includes testing fit of a provisional ...

Femoral augments for use with knee joint prosthesis

A femoral augment, or set of augments, for use with a knee joint prosthesis, where the femoral augment includes a main body portion, an aperture formed within the main body portion and extending in a generally distal/proximal direction, and a pair of legs extending outwardly from said main body portion in a generally posterior direction. In the preferred embodiment, the aperture is configured to receive a stem extension implant, and to allow it to pass through. Additionally, the legs of the femoral augment are preferably configured to be seated proximal of a proximal side of a pair of condylar portions of a femoral component of a knee joint prosthesis. The present invention is intended for situations in which the distal portion of the femur is defective, and it provides a method and devices that allow for preservation of healthy peripheral bone, while still providing the necessary augmentation to the distal portion of the femur.

PROSTHETIC IMPLANT SUPPORT STRUCTURE

A prosthetic system that includes a prosthetic implant and a support structure secured to an inner surface of a cavity of a bone is disclosed. The support structure defines a channel that extends through the length of the support structure. The prosthetic implant is received in the channel, and a portion of the prosthetic implant is secured to an inner surface of the support structure by an adhesive. The support structure may comprise a pair of partially hemispherical components arranged in spaced apart relationship thereby defining the channel between the pair of components. 1. (canceled)2. An acetabular system implantable in an acetabular cavity in a patient , the acetabular system comprising:an acetabular cup implant including an outer surface; anda support component for occupying an area in the acetabular cavity, the support component formed separately from said acetabular cup implant for subsequent connection to said acetabular cup implant, said support component capable of being impacted, by itself, into the acetabular cavity for obtaining a press fit of the support component in the acetabular cavity prior to the support component being connected to the acetabular cup implant, said support component consisting essentially of a porous metal material that is a bone ingrowth-receptive material with a porous structure for encouraging bone ingrowth and attachment throughout the support component for restoring lost bone stock in the acetabular cavity in the area occupied by the support component when the support component is implanted in the acetabular cavity, said support component including a convex outer surface for facing an inner surface of the acetabular cavity and through which bone of the patient can grow into said support component when the support component is implanted in the acetabular cavity and including an inner surface for accommodating the outer surface of the acetabular cup implant.3. The acetabular system of claim 2 , wherein the support component ...

TIBIAL AUGMENTS FOR USE WITH KNEE JOINT PROSTHESES, METHOD OF IMPLANTING THE TIBIAL AUGMENT, AND ASSOCIATED TOOLS

A tibial augment for use with a knee joint prosthesis, composed of annular members of different stock sizes, each size being configured to fit within a cavity formed in a human tibia. The augment may include a stepped distal surface. A provisional (temporary) tibial augment used to ensure a proper fit for the permanent augment is also provided. The provisional may include grooves configured to cooperate with a set of ribs on a tong-like holder used for removing the provisional from the cavity. A pusher for use implanting the tibial augment is also provided. In addition, a system for creating a cavity in a human tibia is also described. The system preferably includes a guide with a slot therein and a set of osteotomes that are inserted within different portions of the slot. Methods for using the tools and/or implanting the prosthetic devices discussed above are also described. 1. (canceled)2. A method for augmenting a tibial component of a knee joint prosthesis , comprising:implanting a tibial component of a knee joint prosthesis, a first shaped annular member, and a second shaped annular member in a proximal portion of a human tibia, wherein the tibial component, the first shaped annular member, and the second shaped annular member are left in the proximal portion of the human tibia with the first shaped annular member and the second shaped annular member connected to the tibial component for augmenting the tibial component in the proximal portion of the human tibia,wherein the tibial component comprises a tibial plate and a tibial stem component extending from said tibial plate,wherein the first shaped annular member and the second shaped annular member each have a height extending between a proximal end and a distal end of the respective shaped annular member, wherein the first shaped annular member and the second shaped annular member each include a tapered outer surface that tapers in a direction toward the distal end of the respective shaped annular member, ...

Prosthetic implant support structure

A prosthetic system that includes a prosthetic implant and a support structure secured to an inner surface of the cavity in the end of the bone is disclosed. The support structure defines a channel that extends through the length of the support structure. The prosthetic implant is received in the channel, and a portion of the prosthetic implant is secured to an inner surface of the channel by an adhesive. The stem of the prosthesis beyond the channel may be cemented or uncemented. The support structure may have an approximately funnel shape. The support structure may be a hollow porous cylindrical sleeve. The support structure may comprise a pair of partially hemispherical components arranged in spaced apart relationship thereby defining a channel between the pair of components. The support structure may comprise a plurality of pedestals secured to the inner surface of the cavity of the bone.

Prosthetic implant support structure

A prosthetic system that includes a prosthetic implant and a support structure secured to an inner surface of a cavity of a bone is disclosed. The support structure defines a channel that extends through the length of the support structure. The prosthetic implant is received in the channel, and a portion of the prosthetic implant is secured to an inner surface of the support structure by an adhesive. The support structure may comprise a pair of partially hemispherical components arranged in spaced apart relationship thereby defining the channel between the pair of components.

PROSTHETIC IMPLANT SUPPORT STRUCTURE

A prosthetic system that includes a prosthetic implant and a support structure secured to an inner surface of a cavity of a bone is disclosed. The support structure defines a channel that extends through the length of the support structure. The prosthetic implant is received in the channel, and a portion of the prosthetic implant is secured to an inner surface of the support structure by an adhesive. The support structure may comprise a pair of partially hemispherical components arranged in spaced apart relationship thereby defining the channel between the pair of components.

Acetabular shell with screw access channels

An outer shell for a socket of a joint prosthesis is disclosed. The outer shell includes an outer wall defining an outer surface of the shell and an inner wall defining an inner surface of the shell. The outer wall has pores to permit bone tissue to grow into the outer wall, and the inner surface of the shell engages the socket. The inner wall has access channels suitable for seating a bone screw. The access channels are closed off by an associated integral section of the shell. Preferably, each access channel is closed off by a section of the outer wall so that the shell retains maximal outer surface area for bone tissue ingrowth. When a number of bone screws are needed for affixation of the shell to bone, a number of locations for bone screws can be created in the shell by opening the closed access channels.

Prosthetic implant support structure

Tibial augments for use with knee joint prostheses

A tibial augment for use with a knee joint prosthesis, composed of annular members of different stock sizes, each size being configured to fit within a cavity formed in a human tibia. The augment may include a stepped distal surface. A provisional (temporary) tibial augment used to ensure a proper fit for the permanent augment is also provided. The provisional may include grooves configured to cooperate with a set of ribs on a tong-like holder used for removing the provisional from the cavity. A pusher for use implanting the tibial augment is also provided. In addition, a system for creating a cavity in a human tibia is also described. The system preferably includes a guide with a slot therein and a set of osteotomes that are inserted within different portions of the slot. Methods for using the tools and/or implanting the prosthetic devices discussed above are also described.

FEMORAL AUGMENTS FOR USE WITH KNEE JOINT PROSTHESIS

A femoral augment, or set of augments, for use with a knee joint prosthesis, where the femoral augment includes a main body portion, an aperture formed within the main body portion and extending in a generally distal/proximal direction, and a pair of legs extending outwardly from said main body portion in a generally posterior direction. In the preferred embodiment, the aperture is configured to receive a stem extension implant, and to allow it to pass through. Additionally, the legs of the femoral augment are preferably configured to be seated proximal of a proximal side of a pair of condylar portions of a femoral component of a knee joint prosthesis. The present invention is intended for situations in which the distal portion of the femur is defective, and it provides a method and devices that allow for preservation of healthy peripheral bone, while still providing the necessary augmentation to the distal portion of the femur.

PROSTHETIC IMPLANT SUPPORT STRUCTURE

A prosthetic system that includes a prosthetic implant and a support structure secured to an inner surface of a cavity of a bone is disclosed. The support structure defines a channel that extends through the length of the support structure. The prosthetic implant is received in the channel, and a portion of the prosthetic implant is secured to an inner surface of the support structure by an adhesive. The support structure may comprise a pair of partially hemispherical components arranged in spaced apart relationship thereby defining the channel between the pair of components.

PROSTHETIC IMPLANT SUPPORT STRUCTURE

A prosthetic system that includes a prosthetic implant and a support structure secured to an inner surface of the cavity in the end of the bone is disclosed. The support structure defines a channel that extends through the length of the support structure. The prosthetic implant is received in the channel, and a portion of the prosthetic implant is secured to an inner surface of the channel by an adhesive. The stem of the prosthesis beyond the channel may be cemented or uncemented. The support structure may have an approximately funnel shape. The support structure may be a hollow porous cylindrical sleeve. The support structure may comprise a pair of partially hemispherical components arranged in spaced apart relationship thereby defining a channel between the pair of components. The support structure may comprise a plurality of pedestals secured to the inner surface of the cavity of the bone.

Femoral augments for use with knee joint prosthesis

A femoral augment, or set of augments, for use with a knee joint prosthesis, where the femoral augment includes a main body portion, an aperture formed within the main body portion and extending in a generally distal/proximal direction, and a pair of legs extending outwardly from said main body portion in a generally posterior direction. In the preferred embodiment, the aperture is configured to receive a stem extension implant, and to allow it to pass through. Additionally, the legs of the femoral augment are preferably configured to be seated proximal of a proximal side of a pair of condylar portions of a femoral component of a knee joint prosthesis. The present invention is intended for situations in which the distal portion of the femur is defective, and it provides a method and devices that allow for preservation of healthy peripheral bone.

Method for augmenting femoral components of knee joint prosthesis

A femoral augment for use with a knee joint prosthesis, where the femoral augment includes a main body portion, an aperture formed within the main body portion and extending in a generally distal/proximal direction, and a pair of legs extending outwardly from said main body portion in a generally posterior direction. In the preferred embodiment, the aperture is configured to receive a stem extension implant, and to allow it to pass through. Additionally, the legs of the femoral augment are preferably configured to be seated proximal of a proximal side of a pair of condylar portions of a femoral component of a knee joint prosthesis. The present invention is intended for situations in which the distal portion of the femur is defective, and it provides a method and devices that allow for preservation of healthy peripheral bone, while still providing the necessary augmentation to the distal portion of fee femur.

Microbial biofilm removal methods and systems

Methods, kits, and systems for removing microbial biofilms from surfaces of objects (such as, e.g., explanted medical devices) are disclosed. The methods, kits, and systems rely on the use of acoustic energy in the presence of microbubbles to enhance biofilm removal while retaining viability of the microorganisms in the biofilm. The microbubbles may be provided in a variety of manners such as, e.g., vortexing a liquid, obtaining a suspension that includes pre-formed protein-stabilized microbubbles, etc.

Femoral implant systems

A femoral augment, or set of augments, for use with a knee joint prosthesis, where the femoral augment includes a main body portion, an aperture formed within the main body portion and extending in a generally distal/proximal direction, and a pair of legs extending outwardly from said main body portion in a generally posterior direction. In the preferred embodiment, the aperture is configured to receive a stem extension implant, and to allow it to pass through. Additionally, the legs of the femoral augment are preferably configured to be seated proximal of a proximal side of a pair of condylar portions of a femoral component of a knee joint prosthesis.

METHODS FOR AUGMENTING FEMORAL COMPONENTS OF KNEE JOINT PROSTHESES

A femoral augment, or set of augments, for use with a knee joint prosthesis, where the femoral augment includes a main body portion, an aperture formed within the main body portion and extending in a generally distal/proximal direction, and a pair of legs extending outwardly from said main body portion in a generally posterior direction. In the preferred embodiment, the aperture is configured to receive a stem extension implant, and to allow it to pass through. Additionally, the legs of the femoral augment are preferably configured to be seated proximal of a proximal side of a pair of condylar portions of a femoral component of a knee joint prosthesis. The present invention is intended for situations in which the distal portion of the femur is defective, and it provides a method and devices that allow for preservation of healthy peripheral bone, while still providing the necessary augmentation to the distal portion of the femur. 113-. (canceled)14. A femoral implant system implantable in a distal femur of a patient , the femoral implant system comprising: a stem component;', 'a lateral condyle including a proximal side;', 'a medial condyle including a proximal side;', 'a lateral inner rail that includes a proximal surface situated proximally of the proximal side of the lateral condyle; and', 'a medial inner rail that includes a proximal surface situated proximally of the proximal side of the medial condyle; and, 'a femoral component, comprising a proximal body portion through which the stem component can be received;', 'a lateral leg that extends distally from the proximal body portion to be seated proximally of the proximal side of the lateral condyle when the femoral augment is connected to the femoral component;', 'a medial leg that extends distally from the proximal body portion to be seated proximally of the proximal side of the medial condyle when the femoral augment is connected to the femoral component; and', 'a web portion,', 'wherein the lateral leg, the ...

TIBIAL AUGMENTS FOR USE WITH KNEE JOINT PROSTHESES, METHOD OF IMPLANTING THE TIBIAL AUGMENT, AND ASSOCIATED TOOLS

A tibial augment for use with a knee joint prosthesis, composed of annular members of different stock sizes, each size being configured to fit within a cavity formed in a human tibia. The augment may include a stepped distal surface. A provisional (temporary) tibial augment used to ensure a proper fit for the permanent augment is also provided. The provisional may include grooves configured to cooperate with a set of ribs on a tong-like holder used for removing the provisional from the cavity. A pusher for use implanting the tibial augment is also provided. In addition, a system for creating a cavity in a human tibia is also described. The system preferably includes a guide with a slot therein and a set of osteotomes that are inserted within different portions of the slot. Methods for using the tools and/or implanting the prosthetic devices discussed above are also described.

Prosthetic implant support structure

A prosthetic system that includes a prosthetic implant acrd a support structure secured to an inner surface of a cavity of a bone is disclosed. The support structure may comprise a pair of partially hemispherical components arranged in spaced apart relationship thereby defining a channel between the pair of components.

Prosthetic implant support structure

A prosthetic system that includes a prosthetic implant and a support structure secured to an inner surface of the cavity in the end of the bone is disclosed. The support structure defines a channel that extends through the length of the support structure. The prosthetic implant is received in the channel, and a portion of the prosthetic implant is secured to an inner surface of the channel by an adhesive. The stem of the prosthesis beyond the channel may be cemented or uncemented. The support structure may have an approximately funnel shape. The support structure may be a hollow porous cylindrical sleeve. The support structure may comprise a pair of partially hemispherical components arranged in spaced apart relationship thereby defining a channel between the pair of components. The support structure may comprise a plurality of pedestals secured to the inner surface of the cavity of the bone.

Methods for supporting a prosthetic implant in a patient

Methods for supporting a prosthetic implant in a patient are disclosed. In some embodiments, a hollow sleeve and a prosthetic implant with a stem component are implanted in a cavity in an end of a bone where the hollow sleeve provides an axial channel that extends through the length of the hollow sleeve for receiving the stem component. In some embodiments, the hollow sleeve is capable of being impacted into the cavity for obtaining a press fit of the hollow sleeve in the cavity. In some embodiments, the hollow sleeve is formed with a porous material.

Prosthetic implant support structure

A prosthetic system that includes a prosthetic implant and a support structure secured to an inner surface of a cavity of a bone is disclosed. The support structure defines a channel that extends through the length of the support structure. The prosthetic implant is received in the channel, and a portion of the prosthetic implant is secured to an inner surface of the support structure by an adhesive. The support structure may comprise a pair of partially hemispherical components arranged in spaced apart relationship thereby defining the channel between the pair of components.

PROSTHETIC IMPLANT SUPPORT STRUCTURE

A prosthetic system that includes a prosthetic implant and a support structure secured to an inner surface of a cavity of a bone is disclosed. The support structure defines a channel that extends through the length of the support structure. The prosthetic implant is received in the channel, and a portion of the prosthetic implant is secured to an inner surface of the support structure by an adhesive. The support structure may comprise a pair of partially hemispherical components arranged in spaced apart relationship thereby defining the channel between the pair of components.

PROSTHETIC IMPLANT SUPPORT STRUCTURE

A prosthetic system that includes a prosthetic implant and a support structure secured to an inner surface of a cavity of a bone is disclosed. The support structure defines a channel that extends through the length of the support structure. The prosthetic implant is received in the channel, and a portion of the prosthetic implant is secured to an inner surface of the support structure by an adhesive. The support structure may comprise a pair of partially hemispherical components arranged in spaced apart relationship thereby defining the channel between the pair of components.

TIBIAL AUGMENTS FOR USE WITH KNEE JOINT PROSTHESES, METHOD OF IMPLANTING THE TIBIAL AUGMENT, AND ASSOCIATED TOOLS

A tibial augment for use with a knee joint prosthesis, composed of annular members of different stock sizes, each size being configured to fit within a cavity formed in a human tibia. The augment may include a stepped distal surface. A provisional (temporary) tibial augment used to ensure a proper fit for the permanent augment is also provided. The provisional may include grooves configured to cooperate with a set of ribs on a tong-like holder used for removing the provisional from the cavity. A pusher for use implanting the tibial augment is also provided. In addition, a system for creating a cavity in a human tibia is also described. The system preferably includes a guide with a slot therein and a set of osteotomes that are inserted to within different portions of the slot. Methods for using the tools and/or implanting the prosthetic devices discussed above are also described. 1. (canceled)2. A tibial implant system , comprising:a tibial component of a knee joint prosthesis, the tibial component positionable in a proximal portion of a human tibia and comprising a tibial plate and a tibial stem component, the tibial stem component contacting the tibial plate and extending from the tibial plate to a distal-most end of the tibial stem component;a first shaped annular member constructed separately from the tibial plate and the tibial stem component, the first shaped annular member connected to the tibial stem component for augmenting the tibial component in the proximal portion of the human tibia; anda second shaped annular member constructed separately from the tibial plate and the tibial stem component, the second shaped annular member connected to the tibial stem component for augmenting the tibial component in the proximal portion of the human tibia;wherein the first shaped annular member and the second shaped annular member are of different sizes and each have a height extending between a proximal end and a distal end of the respective shaped annular member, ...

Femoral augments for use with knee joint prosthesis

A femoral augment, or set of augments, for use with a knee joint prosthesis, where the femoral augment includes a main body portion, an aperture formed within the main body portion and extending in a generally distal/proximal direction, and a pair of legs extending outwardly from said main body portion in a generally posterior direction. In the preferred embodiment, the aperture is configured to receive a stem extension implant, and to allow it to pass through. Additionally, the legs of the femoral augment are preferably configured to be seated proximal of a proximal side of a pair of condylar portions of a femoral component of a knee joint prosthesis. The present invention is intended for situations in which the distal portion of the femur is defective, and it provides a method and devices that allow for preservation of healthy peripheral bone, while still providing the necessary augmentation to the distal portion of the femur.

TIBIAL AUGMENTS FOR USE WITH KNEE JOINT PROSTHESES, METHOD OF IMPLANTING THE TIBIAL AUGMENT, AND ASSOCIATED TOOLS

A tibial augment for use with a knee joint prosthesis, composed of annular members of different stock sizes, each size being configured to fit within a cavity formed in a human tibia. The augment may include a stepped distal surface. A provisional (temporary) tibial augment used to ensure a proper fit for the permanent augment is also provided. The provisional may include grooves configured to cooperate with a set of ribs on a tong-like holder used for removing the provisional from the cavity. A pusher for use implanting the tibial augment is also provided. In addition, a system for creating a cavity in a human tibia is also described. The system preferably includes a guide with a slot therein and a set of osteotomes that are inserted within different portions of the slot. Methods for using the tools and/or implanting the prosthetic devices discussed above are also described.

Methods for augmenting a tibial component of a knee joint prosthesis

A tibial augment for use with a knee joint prosthesis, composed of annular members of different stock sizes, each size being configured to fit within a cavity formed in a human tibia. The augment may include a stepped distal surface. A provisional (temporary) tibial augment used to ensure a proper fit for the permanent augment is also provided. The provisional may include grooves configured to cooperate with a set of ribs on a tong-like holder used for removing the provisional from the cavity. A pusher for use implanting the tibial augment is also provided. In addition, a system for creating a cavity in a human tibia is also described. The system preferably includes a guide with a slot therein and a set of osteotomes that are inserted within different portions of the slot.

FEMORAL AUGMENTS FOR USE WITH KNEE JOINT PROSTHESIS

A femoral augment, or set of augments, for use with a knee joint prosthesis, where the femoral augment includes a main body portion, an aperture formed within the main body portion and extending in a generally distal/proximal direction, and a pair of legs extending outwardly from said main body portion in a generally posterior direction. In the preferred embodiment, the aperture is configured to receive a stem extension implant, and to allow it to pass through. Additionally, the legs of the femoral augment are preferably configured to be seated proximal of a proximal side of a pair of condylar portions of a femoral component of a knee joint prosthesis. The present invention is intended for situations in which the distal portion of the femur is defective, and it provides a method and devices that allow for preservation of healthy peripheral bone, while still providing the necessary augmentation to the distal portion of the femur. 113.-. (canceled)14. A method for augmenting a femoral component of a knee joint prosthesis , comprising:implanting a femoral component of a knee joint prosthesis and a femoral augment in a distal femur of a patient, wherein the femoral component and the femoral augment are left in the distal femur with the femoral augment connected to the femoral component for augmenting the femoral component in the distal femur,wherein the femoral component comprises a lateral condyle, a medial condyle, a lateral inner rail, and a medial inner rail, the lateral inner rail extending proximally of a proximal side of the lateral condyle, the medial inner rail extending proximally of a proximal side of the medial condyle,wherein the femoral augment includes a body portion and a pair of legs extending distally from the body portion, the body portion including a tapered outer lateral surface and a tapered outer medial surface that each are tapered inwardly in a distal-to-proximal direction, the pair of legs defining a medial-lateral recess therebetween in which ...

Prosthetic implant support structure

A prosthetic system that includes a prosthetic implant and a support structure secured to an inner surface of a cavity of a bone is disclosed. The support structure defines a channel that extends through the length of the support structure. The prosthetic implant is received in the channel, and a portion of the prosthetic implant is secured to an inner surface of the support structure by an adhesive. The support structure may comprise a pair of partially hemispherical components arranged in spaced apart relationship thereby defining the channel between the pair of components.

Method of implanting the tibial augment

A tibial augment for use with a knee joint prosthesis, composed of annular members of different stock sizes, each size being configured to fit within a cavity formed in a human tibia. The augment may include a stepped distal surface. A provisional (temporary) tibial augment used to ensure a proper fit for the permanent augment is also provided. The provisional may include grooves configured to cooperate with a set of ribs on a tong-like holder used for removing the provisional from the cavity. A pusher for use implanting the tibial augment is also provided. In addition, a system for creating a cavity in a human tibia is also described. The system preferably includes a guide with a slot therein and a set of osteotomes that are inserted within different portions of the slot. Methods for using the tools and/or implanting the prosthetic devices discussed above are also described.

PROSTHETIC IMPLANT SUPPORT STRUCTURE

A prosthetic system that includes a prosthetic implant and a support structure secured to an inner surface of a cavity of a bone is disclosed. The support structure defines a channel that extends through the length of the support structure. The prosthetic implant is received in the channel, and a portion of the prosthetic implant is secured to an inner surface of the support structure by an adhesive. The support structure may comprise a pair of partially hemispherical components arranged in spaced apart relationship thereby defining the channel between the pair of components. 1a prosthetic implant; anda support structure secured to an inner surface of the cavity of the bone, the support structure comprising a pair of components arranged in spaced apart relationship thereby defining a channel between the pair of components, each component having a configuration approximating a quarter of a sphere, the support structure having an inner surface,wherein the prosthetic implant is received in the channel of the support structure, and a portion of the prosthetic implant is secured to the inner surface of the support structure by an adhesive.. A prosthetic system for implantation in a cavity of a bone, the prosthetic system comprising: This is a continuation application of U.S. patent application Ser. No. 11/560,276 filed Nov. 15, 2006, which is a divisional application of U.S. patent application Ser. No. 10/225,774 filed Aug. 22, 2002, which claims the benefit of U.S. Provisional Patent Application No. 60/315,148 filed Aug. 27, 2001, the disclosures of which are hereby incorporated by reference herein in their entireties.Not Applicable.1. Field of the InventionThis invention relates to prosthetic devices for implantation within a bone, and more particularly to support structures that are affixed to a bone and that support prosthetic implants.2. Description of the Related ArtThe replacement of joints, such as the shoulder, hip, knee, ankle and wrist, with prosthetic ...

Femoral augments for use with knee joint prosthesis

A femoral augment, or set of augments, for use with a knee joint prosthesis, where the femoral augment includes a main body portion, an aperture formed within the main body portion and extending in a generally distal/proximal direction, and a pair of legs extending outwardly from said main body portion in a generally posterior direction. In the preferred embodiment, the aperture is configured to receive a stem extension implant, and to allow it to pass through. Additionally, the legs of the femoral augment are preferably configured to be seated proximal of a proximal side of a pair of condylar portions of a femoral component of a knee joint prosthesis. The present invention is intended for situations in which the distal portion of the femur is defective, and it provides a method and devices that allow for preservation of healthy peripheral bone, while still providing the necessary augmentation to the distal portion of the femur.

Epicondylar axis alignment-femoral positioning drill guide

A tool (50) lays out resection or alignment features to prepare a bone end for prosthetic joint replacement. The tool attaches to the end of the femur (20), and positions an initial cut, for example a pair of aligned drill holes for the positioning pins of a prosthesis or the cutting blocks used in preparing the distal femur. The tool includes adjustable assemblies (70, 80) coupled to a main body (60) for setting its position and these are arranged with graduations for sizing the femur. The adjustable assemblies include an epicondylar engaging assembly (70) such as a pair of clamp arms (71, 72) which slide in the body to align the body along the epicondylar axis. It further includes one or more other assemblies (80) which determine a line, offset depth or other coordinate or component of orientation to set the drill guide for optimally locating the initial cut in the femur. Preferably, the other assemblies include an A/P sizing jig in the tool which determines an offset, and the drill guide is coupled so that it positions drill holes on the bone end in coordination with sizing jig. The clamp assembly may further indicate medial/lateral offset information for shifting the center to improve tracking and alignment. This allows the surgeon to confirm or adjust both the size and the position of the prosthesis with respect to several landmarks using a single tool. The drill holes may set a position for a standard cutting block to fit the femoral end component of a prosthetic knee.