DISASSEMBLY TOOL

A disassembly tool for disassembly of a first component of a prosthesis to a second component of the prosthesis for use in joint arthroplasty. The tool includes a first member having a radial portion operably associated with the first component and adapted to exert a radial force on the first component. A second member operably associated with the second component is also included and the second member has a second member longitudinal axis. A drive mechanism is coupled to the second member, such that as the drive mechanism is activated, the second member exerts a force against the second component in the direction of the longitudinal axis. Such exertion of force against the second member further causes the second member to move relative to the first member along the second member longitudinal axis. 1. A disassembly tool for disassembly of a first component of a prosthesis to a second component of the prosthesis for use in joint arthroplasty , the tool comprising:a first member having a radial portion operably associated with the first component and adapted to exert a radial force on the first component;a second member operably associated with the second component, the second member having a second member longitudinal axis; anda drive mechanism coupled to the second member, such that as the drive mechanism is activated, the second member exerts a force against the second component in the direction of the longitudinal axis, wherein such exertion of force against the second member further causes the second member to move relative to the first member along the second member longitudinal axis.2. The disassembly tool of claim 1 , wherein the first member further includes a expansion member coupled to the radial portion of the first member and adapted to cause the radial portion to exert a radial force against the first component.3. The disassembly tool of claim 2 , wherein the radial portion is a radially expanding collet.4. The disassembly tool of claim 1 , wherein the ...

PROXIMAL TRIAL INSTRUMENT FOR USE DURING AN ORTHOPAEDIC SURGICAL PROCEDURE TO IMPLANT A REVISION HIP PROSTHESIS

A modular femoral prosthesis for use during performance of a hip revision procedure includes a proximal body component, a distal stem component, and a locking bolt. Surgical instruments and methods for use in implanting such a modular femoral prosthesis are disclosed.

VERSION-REPLICATING INSTRUMENT AND ORTHOPAEDIC SURGICAL PROCEDURE FOR USING THE SAME TO IMPLANT A REVISION HIP PROSTHESIS

A modular femoral prosthesis for use during performance of a hip revision procedure includes a proximal body component, a distal stem component, and a locking bolt. Surgical instruments and methods for use in implanting such a modular femoral prosthesis are disclosed. 1. A surgical instrument assembly for use during a surgical procedure to implant an orthopaedic hip prosthesis , comprising:a version-replicating instrument comprising an elongated shaft having (i) an alignment key formed in a distal end thereof, the alignment key having a longitudinal axis, and (ii) an alignment slot formed in an opposite, proximal end thereof, the alignment slot having a longitudinal axis that lies on the same imaginary line as the longitudinal axis of the alignment key.2. The surgical instrument assembly of claim 1 , wherein the alignment key comprises an elongated rib extending outwardly from the distal end of the elongated shaft.3. The surgical instrument assembly of claim 1 , wherein the alignment key has a lobe-shaped cross sectional shape.4. The surgical instrument assembly of claim 1 , wherein:the proximal end of the elongated shaft has a hole formed therein,the hole extends in a direction parallel to the longitudinal axis of the elongated shaft, andthe alignment slot opens into the hole.543. The surgical instrument assembly of claim claim 1 , wherein the hole comprises a blind hole formed in the proximal end of the elongated shaft.6. The surgical instrument assembly of claim 1 , further comprising a proximal trial instrument having an alignment key formed in an outer surface thereof claim 1 , wherein the proximal trial instrument is secured to the version-replicating instrument such that the alignment key of the proximal trial instrument is positioned in the alignment slot so as to align the proximal trial instrument in a predetermined orientation relative to the version-replicating instrument.7. The surgical instrument assembly of claim 1 , wherein the alignment key of the ...

REVISION HIP PROSTHESIS HAVING AN IMPLANTABLE DISTAL STEM COMPONENT

A modular femoral prosthesis for use during performance of a hip revision procedure includes a proximal body component, a distal stem component, and a locking bolt. Surgical instruments and methods for use in implanting such a modular femoral prosthesis are disclosed. 1. An implantable modular orthopaedic hip prosthesis , comprising:an implantable distal stem component having (i) a tapered post formed in an outer surface thereof, the tapered post being configured to be received into a tapered bore of an implantable proximal body component, (ii) an upper set of female threads having a superior end that opens into a superior surface of the distal stem component, the upper set of female threads extending inferiorly into the distal stem component, and (iii) a lower set of female threads having an superior end that opens into an inferior end of the upper set of female threads, the lower set of female threads extending inferiorly from the upper set of female threads, wherein of the diameter of the upper set of female threads is larger than the diameter of the lower set of female threads.2. The modular orthopaedic hip prosthesis of claim 1 , wherein:the distal stem component further has a blind hole having a superior end that opens into an inferior end of the lower set of female threads,the blind hole extends inferiorly from the lower set of female threads, andthe blind hole has a rounded inferior end.3. The modular orthopaedic hip prosthesis of claim 1 , wherein an outer-most edge of each of the female threads of the lower set of female threads is rounded.4. The modular orthopaedic hip prosthesis of claim 1 , wherein the distal stem component further has a keyway formed in the superior surface of the distal stem component.5. The modular orthopaedic hip prosthesis of claim 4 , wherein the keyway is formed in a sidewall of the distal stem component that defines the superior end of the upper set of female threads.6. The modular orthopaedic hip prosthesis of claim 4 , wherein ...

SPIRAL ASSEMBLY TOOL

An assembly tool for assembly of a first component of a prosthesis to a second component of the prosthesis for use in joint arthroplasty. The tool includes a first member operably associated with the first component and a second member operably associated with the second component. The second member includes a cap having a threaded recess and further includes a threaded rod adapted to engage the threaded recess so as to move the second member relative to the first member and the threaded rod is made of a harder metal than the threaded recess. 1. An assembly tool for assembly of a first component of a prosthesis to a second component of the prosthesis for use in joint arthroplasty , the tool comprising:a first member operably associated with the first component; anda second member operably associated with the second component;wherein the second member includes a cap having a threaded recess and further includes a threaded rod adapted to engage the threaded recess so as to move the second member relative to the first member and the threaded rod is made of a harder metal than the threaded recess.2. The assembly tool of claim 1 , wherein the threaded recess of the cap is made of a Nitinol and the threaded rod is made of a stainless steel.3. The assembly tool of claim 2 , wherein the threaded recess of the cap is made of Nitronic 60 and the threaded rod is made of 455 custom stainless steel.4. The assembly tool of claim 1 , wherein the second member includes a tensile bar that is sized and shaped to break at a predetermined force.5. The assembly tool of claim 4 , wherein the predetermined force is between about 2000 lbf and about 2500 lbf.6. The assembly tool of claim 4 , wherein the second member includes a housing adapted to house the tensile bar.7. The assembly tool of claim 6 , wherein the housing of the second member includes an upper restraint pivotally attached to the lower restraint.8. The assembly tool of claim 7 , wherein the upper restraint includes a t-shaped ...

REVISION HIP PROSTHESIS HAVING AN IMPLANTABLE DISTAL STEM COMPONENT

A modular femoral prosthesis for use during performance of a hip revision procedure includes a proximal body component, a distal stem component, and a locking bolt. Surgical instruments and methods for use in implanting such a modular femoral prosthesis are disclosed. 1. An implantable modular orthopaedic hip prosthesis , comprising:an implantable distal stem component having (i) a tapered post formed in an outer surface thereof, the tapered post being configured to be received into a tapered bore of an implantable proximal body component, (ii) a set of female threads extending inferiorly into the distal stem component, an outer-most edge of each of the threads of the set of female threads being rounded, and (iii) a blind hole having a superior end that opens into an inferior end of the set of female threads, the blind hole extending inferiorly from the set of female threads, and having a rounded inferior end.2. The modular orthopaedic hip prosthesis of claim 1 , wherein the distal stem component further has a keyway formed in a superior surface of the distal stem component.3. The modular orthopaedic hip prosthesis of claim 2 , wherein the keyway is formed in a sidewall of the distal stem component that defines the set of female threads.4. The modular orthopaedic hip prosthesis of claim 2 , wherein the keyway comprises a lobe-shaped slot.5. The modular orthopaedic hip prosthesis of claim 1 , wherein the distal stem component further has an alignment key secured to a superior surface of the distal stem component and extending superiorly therefrom.6. The modular orthopaedic hip prosthesis of claim 5 , wherein the alignment key comprises a tab extending superiorly from the superior surface of the distal stem component.7. The modular orthopaedic hip prosthesis of claim 5 , wherein:the distal stem component comprises a bowed distal stem component having an apex extending along a convex side thereof, andthe alignment key is positioned on a side of the bowed distal stem ...

SURGICAL INSTRUMENT AND METHOD OF POSITIONING AN ACETABULAR PROSTHETIC COMPONENT

An orthopaedic surgical instrument and method for positioning an acetabular prosthetic component in a patient's surgically-prepared acetabulum is disclosed. The orthopaedic surgical instrument has a base configured to engage the patient's pelvis, a first linkage pivotally coupled to the base, a locking mechanism operable to lock the first linkage in position relative to the base, and a second linkage removably coupled to the first linkage. The second linkage has an alignment axis corresponding to a desired abduction angle and a desired anteversion angle of the acetabular axis of the acetabular prosthetic component. 1. A method of positioning an acetabular prosthetic component in a patient's surgically-prepared acetabulum , the method comprising:moving a first linkage relative to a base attached to the patient's pelvis to align the first linkage with the patient's vertical axis when the patient is in a standing position,locking the first linkage in position relative to the base,securing a second linkage to the first linkage when the patient is in a recumbent position, the second linkage having an alignment axis corresponding to a desired abduction angle and a desired anteversion angle of the acetabular axis of the acetabular prosthetic component,attaching the acetabular prosthetic component to the second linkage such that the acetabular axis of the acetabular prosthetic component is parallel with the alignment axis of the second linkage, andadvancing the acetabular prosthetic component into the patient's surgically-prepared acetabulum to position the acetabular prosthetic component in the patient's surgically-prepared acetabulum at the desired abduction angle and the desired anteversion angle.2. The method of claim 1 , further comprising attaching the base to the patient's pelvis when the patient is in the standing position.3. The method of claim 2 , further comprising (i) removing the base from the patient's pelvis after locking the first linkage in position ...

PATIENT SPECIFIC FEMORAL PROSTHESIS

A femoral prosthesis system for an orthopaedic hip implant and method of use is disclosed. The prosthesis system includes a femoral stem component that includes a core body and a casing that encases the core body. The casing can be additively manufactured such that the core body defines a predetermined orientation in the core body among a plurality of permissible predetermined orientations. The femoral stem component can further include a neck and a trunnion that extends from the neck. The neck can extend out with respect to the core body at a predetermined angle within a range of permissible predetermined angles. 1. A femoral prosthesis comprising:an elongate core body that extends along a central core body axis from a proximal core body end to a distal core body end opposite the proximal core body end, the core body including a medial core body side and a lateral core body side opposite the medial core body side, the medial and lateral core body sides extending from the proximal core body end to the distal core body end, wherein the core body is configured to be received in a medullary canal of a femur;a neck that extends out with respect to the proximal core body end; anda porous casing that encases at least a portion of the core body, wherein the porous casing defines an inner casing surface that faces the core body and an outer casing surface opposite the inner casing surface,wherein the inner surface of the porous casing extends along a central inner casing axis that is substantially coincident with the central core body axis, and the outer surface of the porous casing extends along a central outer casing axis that intersects the central inner casing axis within an outer perimeter of the core body with respect to a side elevation view of the stem component that includes the proximal core body end, the distal core body end, the medial core body side, and the lateral core body side.2. The femoral prosthesis of claim 1 , wherein the core body and the neck define ...

PATIENT SPECIFIC FEMORAL PROSTHESIS

A femoral prosthesis system for an orthopaedic hip implant and method of use is disclosed. The prosthesis system includes a femoral stem component that includes a core body and a casing that encases the core body. The casing can be additively manufactured such that the core body defines a predetermined orientation in the core body among a plurality of permissible predetermined orientations. The femoral stem component can further include a neck and a trunnion that extends from the neck. The neck can extend out with respect to the core body at a predetermined angle within a range of permissible predetermined angles. 1. A femoral prosthesis comprising:an elongate core body that extends along a central core body axis from a proximal core body end to a distal core body end opposite the proximal core body end, the core body including a medial core body side and a lateral core body side opposite the medial core body side, the medial and lateral core body sides extending from the proximal core body end to the distal core body end, wherein the core body is configured to be received in a medullary canal of a femur;a neck that extends out with respect to the proximal core body end; anda porous casing that encases at least a portion of the core body, wherein the porous casing defines an inner casing surface that faces the core body and an outer casing surface opposite the inner casing surface,wherein the inner surface of the porous casing extends along a central inner casing axis that is substantially coincident with the central core body axis, and the outer surface of the porous casing extends along a central outer casing axis that intersects the central inner casing axis within an outer perimeter of the core body with respect to a side elevation view of the stem component that includes the proximal core body end and the distal core body end.2. The femoral prosthesis of claim 1 , wherein the side elevation view further includes the medial core body side and the lateral core ...

DISASSEMBLY TOOL

A disassembly tool for disassembly of a first component of a prosthesis to a second component of the prosthesis for use in joint arthroplasty. The tool includes a first member having a radial portion operably associated with the first component and adapted to exert a radial force on the first component. A second member operably associated with the second component is also included and the second member has a second member longitudinal axis. A drive mechanism is coupled to the second member, such that as the drive mechanism is activated, the second member exerts a force against the second component in the direction of the longitudinal axis. Such exertion of force against the second member further causes the second member to move relative to the first member along the second member longitudinal axis. 1. A kit for use in hip arthroplasty , comprising:a first component of a prosthesis;a second component of a prosthesis, the second component coupled to the first component; anda disassembly tool for disassembling the first component from the second component of the prosthesis for use in joint arthroplasty, the disassembly tool includinga first member having a radial portion operably associated with the first component and adapted to exert a radial force on the first component,a second member operably associated with the second component, the second member having a second member longitudinal axis, anda drive mechanism coupled to the second member, such that as the drive mechanism is activated, the second member exerts a force against the second component in the direction of the longitudinal axis, wherein such exertion of force against the second member further causes the second member to move relative to the first member along the second member longitudinal axis.2. The kit of claim 1 , wherein the first and second component are coupled to one another via a taper lock.3. The kit of claim 1 , wherein the first component includes a recess in a proximal portion and the radial ...

Revision hip prosthesis having an implantable distal stem component

A modular femoral prosthesis for use during performance of a hip revision procedure includes a proximal body component, a distal stem component, and a locking bolt. Surgical instruments and methods for use in implanting such a modular femoral prosthesis are disclosed.

PATIENT SPECIFIC FEMORAL PROSTHESIS

A femoral prosthesis system for an orthopaedic hip implant and method of use is disclosed. The prosthesis system includes a femoral stem component that includes a core body and a casing that encases the core body. The casing can be additively manufactured such that the core body defines a predetermined orientation in the core body among a plurality of permissible predetermined orientations. The femoral stem component can further include a neck and a trunnion that extends from the neck. The neck can extend out with respect to the core body at a predetermined angle within a range of permissible predetermined angles. 1. An orthopaedic implant system comprising: [ i) a core body elongate along a core body axis, the core body defining an outer core body surface; and', 'ii) a neck monolithic with the core body, wherein the neck extends out with respect to the core body along a central neck axis,', 'wherein the core of the first femoral prosthesis is substantially identical to the core of the second femoral prosthesis; and, 'a core that includes, 'a porous casing that encases at least a portion of the core body, the porous casing defining an inner casing surface that extends along the outer core body surface, and an outer casing surface that is opposite the inner casing surface,, 'a first femoral prosthesis and a second femoral prosthesis each defining a medial side and a lateral side opposite the medial side along a medial-lateral direction, and an anterior side and a posterior side opposite the anterior side along an anterior-posterior direction, each of the first and second femoral prostheses includingwherein the outer casing surface defines a central outer casing axis,wherein each of the first femoral prosthesis and the second femoral prosthesis includes a geometry that includes at least one of a selectable neck angle defined by the central neck axis and the central outer casing axis, a neck offset that extends from the neck to the casing along the central neck axis, ...

VERSION-REPLICATING INSTRUMENT AND ORTHOPAEDIC SURGICAL PROCEDURE FOR USING THE SAME TO IMPLANT A REVISION HIP PROSTHESIS

A modular femoral prosthesis for use during performance of a hip revision procedure includes a proximal body component, a distal stem component, and a locking bolt. Surgical instruments and methods for use in implanting such a modular femoral prosthesis are disclosed. 1. A method of performing a surgical procedure to implant an orthopaedic hip prosthesis , comprising:implanting a distal stem component into an intramedullary canal of a patient's femur,installing a proximal trial instrument to the proximal end of the implanted distal stem component,rotating the proximal trial instrument relative to the implanted distal stem component so as to position the proximal trial instrument in a selected version,locking the proximal trial instrument in the selected version,uninstalling the proximal trial instrument from the implanted distal stem component with the proximal trial instrument locked in the selected version,installing a version-replicating instrument to the proximal end of the implanted distal stem component, andinstalling the proximal trial instrument on the version-replicating instrument with the proximal trial instrument being locked in the selected version.2. The method of claim 1 , wherein:the proximal trial instrument comprises a modular proximal instrument having a discrete trial shaft and a discrete trial neck, andinstalling the proximal trial instrument on the implanted distal stem component comprises: (i) installing the trial shaft to the proximal end of the implanted distal stem component, and (ii) installing the trial neck on the trial shaft.3. The method of claim 2 , wherein the trial neck is installed on the trial shaft prior to installation of the trial shaft to the implanted distal stem component.4. The method of claim 2 , wherein the trial neck is installed on the trial shaft after the trial shaft is installed to the implanted distal stem component.5. The method of claim 1 , wherein:the proximal trial instrument comprises a rotatable locking screw ...

Modular Femoral Prosthesis System for Hip Arthroplasty

A modular femoral prosthesis system for an orthopaedic hip implant and method of use is disclosed. The prosthesis system includes a femoral stem component and a plurality of collar components configured to be selectively coupled to the stem component in a fixed position adjacent to a neck of the stem component. Each of the collar components includes a base and is configured to secure an assembled femoral prosthesis to a patient's surgically prepared femur to provide stability for the assembled femoral prosthesis.

VERSION-REPLICATING INSTRUMENT AND ORTHOPAEDIC SURGICAL PROCEDURE FOR USING THE SAME TO IMPLANT A REVISION HIP PROSTHESIS

A modular femoral prosthesis for use during performance of a hip revision procedure includes a proximal body component, a distal stem component, and a locking bolt. Surgical instruments and methods for use in implanting such a modular femoral prosthesis are disclosed. 1. A method of performing a surgical procedure to implant an orthopaedic hip prosthesis , comprising:implanting a distal stem component into an intramedullary canal of a patient's femur,installing a proximal trial instrument to the proximal end of the implanted distal stem component,rotating the proximal trial instrument relative to the implanted distal stem component so as to position the proximal trial instrument in a selected version,locking the proximal trial instrument in the selected version,uninstalling the proximal trial instrument from the implanted distal stem component with the proximal trial instrument locked in the selected version,installing a version-replicating instrument to the proximal end of the implanted distal stem component, andinstalling the proximal trial instrument on the version-replicating instrument with the proximal trial instrument being locked in the selected version.2. The method of claim 1 , wherein:the proximal trial instrument comprises a modular proximal instrument having a discrete trial shaft and a discrete trial neck, andinstalling the proximal trial instrument on the implanted distal stem component comprises: (i) installing the trial shaft to the proximal end of the implanted distal stem component, and (ii) installing the trial neck on the trial shaft.3. The method of claim 2 , wherein the trial neck is installed on the trial shaft prior to installation of the trial shaft to the implanted distal stem component.4. The method of claim 2 , wherein the trial neck is installed on the trial shaft after the trial shaft is installed to the implanted distal stem component.5. The method of claim 1 , wherein:the proximal trial instrument comprises a rotatable locking screw ...

Femoral stem including an anchor to facilitate assembly and implantation

An orthopaedic prosthesis for use in a hip replacement surgery. The orthopaedic prosthesis includes an elongated stem component that has a proximal body, a neck extending superiorly and medially from the proximal body and a tapered stem extending inferiorly from the proximal body. An anchor is positioned on the neck and is configured to be engaged by a surgical instrument. A system for use in assembling the orthopaedic prosthesis and a method of assembly are also disclosed.

FEMORAL STEM INCLUDING AN ANCHOR TO FACILITATE ASSEMBLY AND IMPLANTATION

An orthopaedic prosthesis for use in a hip replacement surgery. The orthopaedic prosthesis includes an elongated stem component that has a proximal body, a neck extending superiorly and medially from the proximal body and a tapered stem extending inferiorly from the proximal body. An anchor is positioned on the neck and is configured to be engaged by a surgical instrument. A system for use in assembling the orthopaedic prosthesis and a method of assembly are also disclosed. 1an elongated stem component, comprising:(i) a proximal body,(ii) a neck extending superiorly and medially from the proximal body, the neck having a longitudinal axis and being configured to receive a femoral head component,(iii) a tapered stem extending inferiorly from the proximal body, and(iv) an anchor positioned on the neck, wherein the anchor extends orthogonal to the longitudinal axis of the neck.. An orthopaedic prosthesis, comprising: This application claims priority under 35 U.S.C. §119 to U.S. Patent App. Ser. No. 62/103,826 entitled “FEMORAL STEM INCLUDING AN ANCHOR TO FACILITATE ASSEMBLY AND IMPLANTATION,” which was filed Jan. 15, 2015, and U.S. patent application Ser. No. 14/995,518 entitled “FEMORAL STEM INCLUDING AN ANCHOR TO FACILITATE ASSEMBLY AND IMPLANTATION,” which was filed Jan. 14, 2016, both of which are expressly incorporated herein by reference.Cross-reference is made to U.S. Patent App. Ser. No. 62/103,611 entitled “ASSEMBLY TOOL,” which was filed Jan. 15, 2015 and is expressly incorporated herein by reference.The present disclosure relates generally to orthopaedic prostheses, and particularly to orthopaedic prostheses for use in hip replacement surgery.Joint arthroplasty is a well-known surgical procedure by which a diseased and/or damaged natural joint is replaced by a prosthetic joint. The prosthetic joint may include a prosthesis that is implanted into one or more of the patient's bones. Many hip prostheses include a femoral prosthesis that is implanted into a ...

MODULAR FEMORAL PROSTHESIS SYSTEM FOR HIP ARTHROPLASTY

A modular femoral prosthesis system for an orthopaedic hip implant and method of use is disclosed. The prosthesis system includes a femoral stem component and a plurality of collar components configured to be selectively coupled to the stem component in a fixed position adjacent to a neck of the stem component. Each of the collar components includes a base and is configured to secure an assembled femoral prosthesis to a patient's surgically prepared femur to provide stability for the assembled femoral prosthesis. 1. A method for performing a hip arthroplasty , the method comprising:resecting a proximal end of a patient's femur to form a planar proximal surface,selecting a femoral stem component having a neck, an elongated body extending distally from the neck, and a trunnion configured to receive a femoral head component extending medially and proximally from the neck,inserting a broach through the planar proximal surface to define a passageway sized to receive the selected femoral stem component,selecting a collar component from a plurality of collar components, each collar component including an inferior surface configured to engage the planar proximal surface of the patient's femur,securing the selected collar component to the femoral stem component such that the inferior surface of the collar component extends transverse to a longitudinal axis of the trunnion of the femoral stem component, andimplanting the femoral stem component in the patient's femur such that the inferior surface of the selected collar component engages with the planar proximal surface of the patient's femur.2. The method of claim 1 , wherein:selecting the collar component further includes selecting a first collar component from the plurality of collar components, the first collar component including a base having the inferior surface configured to contact a surgically prepared proximal surface of the patient's femur, the base comprising (i) a platform and (ii) a pair of arms extending away ...

SURGICAL INSTRUMENT AND METHOD OF POSITIONING AN ACETABULAR PROSTHETIC COMPONENT

An orthopaedic surgical instrument and method for positioning an acetabular prosthetic component in a patient's surgically-prepared acetabulum is disclosed. The orthopaedic surgical instrument has a base configured to engage the patient's pelvis, a first linkage pivotally coupled to the base, a locking mechanism operable to lock the first linkage in position relative to the base, and a second linkage removably coupled to the first linkage. The second linkage has an alignment axis corresponding to a desired abduction angle and a desired anteversion angle of the acetabular axis of the acetabular prosthetic component. 1. An orthopaedic surgical instrument for positioning an acetabular prosthetic component in a patient's surgically-prepared acetabulum , the instrument comprising:a base including a plurality of mounting legs configured to engage the patient's pelvis,a first linkage pivotally coupled to the base, the first linkage including a spirit level,a locking mechanism operable to lock the first linkage in position relative to the base, anda second linkage removably coupled to the first linkage, the second linkage having an alignment axis corresponding to a desired abduction angle and a desired anteversion angle of the acetabular axis of the acetabular prosthetic component.2. The orthopaedic surgical instrument of claim 1 , wherein each mounting leg includes a telescopic shaft and a mounting foot configured to engage the patient's pelvis.3. The orthopaedic surgical instrument of claim 2 , wherein the mounting feet include a pair of mounting feet configured to engage the patient's anterior superior iliac spines of the patient's pelvis and a pair of mounting feet configured to engage the pubic tubercles of the patient's pelvis.4. The orthopaedic surgical instrument of claim 1 , wherein the base includes a frame and each mounting leg is pivotally coupled to the frame.5. The orthopaedic surgical instrument of claim 1 , wherein the second linkage includes a parallelogram ...

ORTHOPAEDIC SURGICAL INSTRUMENT SYSTEM AND METHOD FOR PREPARING A PATIENT'S CALCAR

An orthopaedic surgical instrument system including a reamer assembly is disclosed. The reamer assembly includes a reamer head having a plurality of cutting teeth and a mounting bracket configured to be coupled to a femoral broach, which is sized to be positioned in a proximal opening of a femoral canal of a patient's femur. When the mounting bracket is coupled to the femoral broach, the reamer head is offset medially from the lateral edge of the femoral broach to resect a medial calcar of the patient femur. 1. An orthopaedic surgical instrument system , comprising:a first orthopaedic surgical instrument including an elongated body sized to be positioned in a femoral canal of a patient's femur and a plurality of cutting teeth defined in the elongated body, anda second orthopaedic surgical instrument including a reamer head configured to resect a portion of a proximal end of the patient's femur and a mounting bracket configured to pivotally couple the reamer head to the proximal end of the first orthopaedic surgical instrument,wherein the elongated body of the first orthopaedic surgical instrument includes a medial edge and a lateral edge positioned opposite the medial edge, andwherein when the mounting bracket is coupled to the proximal end of the first orthopaedic surgical instrument, an outer circumference of the reamer head is offset medially from the lateral edge of the elongated body such that the reamer head is positioned to resect a medial calcar of the patient's femur.2. The orthopaedic surgical instrument system of claim 1 , wherein the reamer head is operable to rotate about a first rotational axis to resect the medial calcar of the patient's femur claim 1 , and the reamer head is configured to pivot about a second rotational axis relative to the elongated body of the first orthopaedic surgical instrument to move the first rotational axis relative to the elongated body.3. The orthopaedic surgical instrument system of claim 2 , wherein the reamer head is ...

DISASSEMBLY TOOL

A disassembly tool for disassembly of a first component of a prosthesis to a second component of the prosthesis for use in joint arthroplasty. The tool includes a first member having a radial portion operably associated with the first component and adapted to exert a radial force on the first component. A second member operably associated with the second component is also included and the second member has a second member longitudinal axis. A drive mechanism is coupled to the second member, such that as the drive mechanism is activated, the second member exerts a force against the second component in the direction of the longitudinal axis. Such exertion of force against the second member further causes the second member to move relative to the first member along the second member longitudinal axis. 1. A method for disassembling a first component of a prosthesis to a second component of the prosthesis for use in joint arthroplasty , the method comprising:using a disassembly tool having a first member, a second member having a longitudinal axis and coupled to the first member, and a drive mechanism coupled to the second member;inserting a distal portion of the second member into a recess of the second component;abutting a proximal portion of the first component with the first member;exerting a radial force on the first component; andactivating the drive mechanism, causing the second member to exert a force along the longitudinal axis against the second component.2. The method of claim 1 , wherein the first member includes a radially expanding collet and exerting a radial force includes causing the radially expanding collet to expand into a recess in the first component.3. The method of claim 2 , wherein the first member further includes an external collar coupled to the radially expanding collet claim 2 , and causing the radially expanding collet includes moving the external collar along the longitudinal axis.4. The method of claim 3 , wherein the first member ...

SPIRAL ASSEMBLY TOOL

An assembly tool for assembly of a first component of a prosthesis to a second component of the prosthesis for use in joint arthroplasty. The tool includes a first member operably associated with the first component and a second member operably associated with the second component. The second member includes a cap having a threaded recess and further includes a threaded rod adapted to engage the threaded recess so as to move the second member relative to the first member and the threaded rod is made of a harder metal than the threaded recess. 1. An assembly tool for assembly of a first component of a prosthesis to a second component of the prosthesis for use in joint arthroplasty , the tool comprising:a first member operably associated with the first component; anda second member operably associated with the second component;wherein the second member includes a cap having a threaded recess and further includes a threaded rod adapted to engage the threaded recess so as to move the second member relative to the first member and the threaded rod is made of a harder metal than the threaded recess.2. The assembly tool of claim 1 , wherein the threaded recess of the cap is made of a Nitinol and the threaded rod is made of a stainless steel.3. The assembly tool of claim 2 , wherein the threaded recess of the cap is made of Nitronic 60 and the threaded rod is made of 455 custom stainless steel.4. The assembly tool of claim 1 , wherein the second member includes a tensile bar that is sized and shaped to break at a predetermined force.5. The assembly tool of claim 4 , wherein the predetermined force is between about 2000 lbf and about 2500 lbf.6. The assembly tool of claim 4 , wherein the second member includes a housing adapted to house the tensile bar.7. The assembly tool of claim 6 , wherein the housing of the second member includes an upper restraint pivotally attached to the lower restraint.8. The assembly tool of claim 7 , wherein the upper restraint includes a t-shaped ...

SURGICAL INSTRUMENT AND METHOD OF POSITIONING AN ACETABULAR PROSTHETIC COMPONENT

An orthopaedic surgical instrument and method for positioning an acetabular prosthetic component in a patient's surgically-prepared acetabulum is disclosed. The orthopaedic surgical instrument has a base configured to engage the patient's pelvis, a first linkage pivotally coupled to the base, a locking mechanism operable to lock the first linkage in position relative to the base, and a second linkage removably coupled to the first linkage. The second linkage has an alignment axis corresponding to a desired abduction angle and a desired anteversion angle of the acetabular axis of the acetabular prosthetic component. 1a base including a plurality of mounting legs configured to engage the patient's pelvis,a first linkage pivotally coupled to the base,a locking mechanism operable to lock the first linkage in position relative to the base, andwherein the first linkage includes an indicator operable to provide a visual indication of a position of the instrument, and the instrument further comprises a second linkage removably coupled to the first linkage, the second linkage having an alignment axis corresponding to a desired abduction angle and a desired anteversion angle of the acetabular axis of the acetabular prosthetic component.. An orthopaedic surgical instrument for positioning an acetabular prosthetic component in a patient's surgically-prepared acetabulum, the instrument comprising: This application is a continuation application of, and claims priority to U.S. patent application Ser. No. 15/223,523, which is a continuation application of, and claims priority to U.S. patent application Ser. No. 14/710,042, now U.S. Pat. No. 9,427,333, which was filed on May 12, 2105, which is a divisional application of, and claims priority to U.S. patent application Ser. No. 13/786,845, now U.S. Pat. No. 9,055,975, which was filed on Mar. 6, 2013, which claims priority under 35 U.S.C. §119 to U.S. Patent App. Ser. No. 61/707,904 filed Sep. 29, 2012, the entirety of each of which ...

ORTHOPAEDIC SURGICAL PROCEDURE FOR IMPLANTING A REVISION HIP PROSTHESIS

A modular femoral prosthesis for use during performance of a hip revision procedure includes a proximal body component, a distal stem component, and a locking bolt. Surgical instruments and methods for use in implanting such a modular femoral prosthesis are disclosed. 1. A method of performing a surgical procedure to implant an orthopaedic hip prosthesis , comprising:implanting a distal stem component into an intramedullary canal of a patient's femur,installing a trial shaft to the proximal end of the distal stem component positioned in the intramedullary canal of a patient's femur,installing a discrete trial neck on the trial shaft, androtating the trial neck relative to the trial shaft so as to position the trial neck in a number of different versions.2. The method of claim 1 , wherein:the trial shaft comprises a rotatable locking screw having a number of threads formed in a distal end thereof, andinstalling the trial shaft to the proximal end of the distal stem component comprises threading the threads of the locking screw into a threaded bore of the distal stem component.3. The method of claim 1 , wherein the trial neck is installed on the trial shaft prior to installation of the trial shaft to the implanted distal stem component.4. The method of claim 1 , wherein the trial neck is installed on the trial shaft after the trial shaft is installed to the implanted distal stem component.5. The method of claim 1 , further comprising locking the trial neck relative to the trial shaft so as to maintain the trial neck in a selected version of the number of different versions.6. The method of claim 5 , further comprising uninstalling the trial shaft from the proximal end of the distal stem component positioned in the intramedullary canal of the patient's femur with the trial neck locked relative to the trial shaft in the selected version.7. The method of claim 6 , further comprising:installing a version-replicating instrument to the proximal end of the distal stem ...

SURGICAL INSTRUMENT AND METHOD OF POSITIONING AN ACETABULAR PROSTHETIC COMPONENT

An orthopaedic surgical instrument and method for positioning an acetabular prosthetic component in a patient's surgically-prepared acetabulum is disclosed. The orthopaedic surgical instrument has a base configured to engage the patient's pelvis, a first linkage pivotally coupled to the base, a locking mechanism operable to lock the first linkage in position relative to the base, and a second linkage removably coupled to the first linkage. The second linkage has an alignment axis corresponding to a desired abduction angle and a desired anteversion angle of the acetabular axis of the acetabular prosthetic component. 1. An orthopaedic surgical instrument for positioning an acetabular prosthetic component in a patient's surgically-prepared acetabulum , the instrument comprising:a base configured to engage the patient's pelvis,a first linkage coupled to the base, the first linkage including a a gravity-based indicator,a locking mechanism operable to lock the first linkage in position relative to the base, anda second linkage coupled to the first linkage, the second linkage having an alignment axis corresponding to a desired abduction angle and a desired anteversion angle of the acetabular axis of the acetabular prosthetic component.2. The orthopaedic surgical instrument of claim 1 , wherein the base includes a plurality of mounting legs which are configured to engage the patient's pelvis claim 1 , each mounting leg includes a telescopic shaft and a mounting foot configured to engage the patient's pelvis.3. The orthopaedic surgical instrument of claim 2 , wherein the mounting feet include a pair of mounting feet configured to engage the patient's anterior superior iliac spines of the patient's pelvis and a pair of mounting feet configured to engage the pubic tubercles of the patient's pelvis.4. The orthopaedic surgical instrument of claim 1 , wherein the base includes a frame and each mounting leg is pivotally coupled to the frame.5. The orthopaedic surgical instrument ...

Surgical instrument assembly

【課題】整形外科股関節人工装具を植え込む外科手技の間に使用するための傾斜複製手術器具を提供すること。【解決手段】傾斜複製手術器具は、遠位端及びこれと反対側の近位端を有する細長いシャフトと、前記細長いシャフトの前記遠位端に形成され、長手方向軸を有する、位置合わせキーと、前記細長いシャフトの前記近位端に形成され、前記細長いシャフトの前記長手方向軸に平行な方向に延在する孔と、前記孔を画定する前記細長いシャフトの前記近位端の側壁に形成され、前記位置合わせキーの前記長手方向軸と同一の想像線上にある長手方向軸を有する位置合わせスロットと、を備える。【選択図】図３６

Patient specific femoral prosthesis

A femoral prosthesis system for an orthopaedic hip implant and method of use is disclosed. The prosthesis system includes a femoral stem component that includes a core body and a casing that encases the core body. The casing can be additively manufactured such that the core body defines a predetermined orientation in the core body among a plurality of permissible predetermined orientations. The femoral stem component can further include a neck and a trunnion that extends from the neck. The neck can extend out with respect to the core body at a predetermined angle within a range of permissible predetermined angles.

Modular orthopaedic hip prosthesis

An implantable modular orthopaedic hip prosthesis includes an implantable distal stem component having a tapered post which can be received into a tapered bore of an implantable proximal body component. A threaded bore extends inferiorly into the distal stem component, and an alignment key is secured to the superior surface of the distal stem component and extends superiorly therefrom.

Surgical instrument

An orthopaedic surgical instrument for positioning an acetabular prosthetic component in a patient's surgically-prepared acetabulum has a base (48) configured to engage the patient's pelvis, a first linkage (50) pivotally coupled to the base, a locking mechanism operable to lock the first linkage in position relative to the base, and a second linkage (56) removably coupled to the first linkage. The second linkage has an alignment axis (54) corresponding to a desired abduction angle and a desired anteversion angle of the acetabular axis of the acetabular prosthetic component.

Modular Orthopedic Hip Prosthesis

Una prótesis implantable modular ortopédica de cadera (10), que comprende un componente de eje distal implantable (14) que tiene (i) un poste cónico (30) formado en una superficie exterior del mismo, configurándose el poste cónico (30) para ser recibido en un agujero cónico (28) de un componente de cuerpo proximal implantable (12), y (ii) un orificio roscado (40,42) que tiene un extremo superior que se abre en una superficie superior del componente de eje distal y se extiende inferiormente en el componente de eje distal, (iii) una ranura de clavija (46) formada en la pared lateral (48) del componente de eje distal que define el extremo superior (50) del orificio roscado, caracterizado porque la prótesis (10) comprende además (iv) una clave de alineación (44) sujeta a la superficie superior del componente de eje distal y extendiéndose superiormente del mismo.

Modular orthopaedic hip prosthesis

Disassembly tool

Surgical instrument and method of positioning an acetabular prosthetic component

An orthopedic surgical instrument and method for positioning an acetabular prosthetic component in a patient's surgically-prepared acetabulum is disclosed. The orthopedic surgical instrument has a base configured to engage the patient's pelvis, a first linkage pivotally coupled to the base, a locking mechanism operable to lock the first linkage in position relative to the base, and a second linkage removably coupled to the first linkage. The second linkage has an alignment axis corresponding to a desired abduction angle and a desired anteversion angle of the acetabular axis of the acetabular prosthetic component.

螺旋状組立工具

【課題】関節形成術で使用するための、義肢の第１の構成要素をその義肢の第２の構成要素に組み付ける組立工具を提供する。 【解決手段】この工具は、第１の構成要素に動作可能に結合された第１の部材を含み、第１の部材の長手軸線を画定する。第２の部材が第２の構成要素に動作可能に結合され、第２の部材の長手軸線を画定する。ワッシャシステムが第２の部材に結合される。駆動機構がワッシャシステムに結合され、そのため、駆動機構が作動されるとき、ワッシャシステムが、第２の部材の長手軸線を中心として回転し、第２の部材の長手軸線に沿って拡張するようになっており、そのような運動により、更に、第２の部材が第２の部材の長手軸線に沿って第１の部材に対して移動されるようになる。 【選択図】図１

Femoral stem including an anchor to facilitate assembly and implantation

An orthopedic prosthesis for use in a hip replacement surgery. The orthopedic prosthesis includes an elongated stem component that has a proximal body, a neck extending superiorly and medially from the proximal body and a tapered stem extending inferiorly from the proximal body. An anchor is positioned on the neck and is configured to be engaged by a surgical instrument. A system for use in assembling the orthopedic prosthesis and a method of assembly are also disclosed.

Disassembly tool

A disassembly tool for disassembly of a first component of a prosthesis to a second component of the prosthesis for use in joint arthroplasty. The tool includes a first member having a radial portion operably associated with the first component and adapted to exert a radial force on the first component. A second member operably associated with the second component is also included and the second member has a second member longitudinal axis. A drive mechanism is coupled to the second member, such that as the drive mechanism is activated, the second member exerts a force against the second component in the direction of the longitudinal axis. Such exertion of force against the second member further causes the second member to move relative to the first member along the second member longitudinal axis.

Orthopaedic surgical procedure for implanting a revision hip prosthesis

A modular femoral prosthesis for use during performance of a hip revision procedure includes a proximal body component, a distal stem component, and a locking bolt. Surgical instruments and methods for use in implanting such a modular femoral prosthesis are disclosed.

Version-replicating instrument and orthopaedic surgical procedure for using the same to implant a revision hip prosthesis

A modular femoral prosthesis for use during performance of a hip revision procedure includes a proximal body component, a distal stem component, and a locking bolt. Surgical instruments and methods for use in implanting such a modular femoral prosthesis are disclosed.

Revision hip prosthesis having an implantable distal stem component

A modular femoral prosthesis for use during performance of a hip revision procedure includes a proximal body component, a distal stem component, and a locking bolt. Surgical instruments and methods for use in implanting such a modular femoral prosthesis are disclosed.

Surgical instrument and method of positioning an acetabular prosthetic component

An orthopedic surgical instrument and method for positioning an acetabular prosthetic component in a patient's surgically-prepared acetabulum is disclosed. The orthopedic surgical instrument has a base configured to engage the patient's pelvis, a first linkage pivotally coupled to the base, a locking mechanism operable to lock the first linkage in position relative to the base, and a second linkage removably coupled to the first linkage. The second linkage has an alignment axis corresponding to a desired abduction angle and a desired anteversion angle of the acetabular axis of the acetabular prosthetic component.