EP4031071A1 - Modulare prothese zum mindestens teilweisen ersatz eines an ein gelenk angrenzenden röhrenknochens - Google Patents

Modulare prothese zum mindestens teilweisen ersatz eines an ein gelenk angrenzenden röhrenknochens

Info

Publication number
EP4031071A1
EP4031071A1 EP20771861.0A EP20771861A EP4031071A1 EP 4031071 A1 EP4031071 A1 EP 4031071A1 EP 20771861 A EP20771861 A EP 20771861A EP 4031071 A1 EP4031071 A1 EP 4031071A1
Authority
EP
European Patent Office
Prior art keywords
porous
modular
endoprosthesis according
support body
modular endoprosthesis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20771861.0A
Other languages
German (de)
English (en)
French (fr)
Inventor
Helmut D. Link
Sebastian SPATH
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Waldemar Link GmbH and Co KG
Original Assignee
Waldemar Link GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Waldemar Link GmbH and Co KG filed Critical Waldemar Link GmbH and Co KG
Publication of EP4031071A1 publication Critical patent/EP4031071A1/de
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30721—Accessories
    • A61F2/30734—Modular inserts, sleeves or augments, e.g. placed on proximal part of stem for fixation purposes or wedges for bridging a bone defect
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/32—Joints for the hip
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3662—Femoral shafts
    • A61F2/367—Proximal or metaphyseal parts of shafts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/32—Joints for the hip
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3607—Femoral heads ; Femoral endoprostheses including proximal or total replacement of the femur
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/32—Joints for the hip
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3662—Femoral shafts
    • A61F2/3672—Intermediate parts of shafts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/32—Joints for the hip
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3662—Femoral shafts
    • A61F2/3676—Distal or diaphyseal parts of shafts
    • A—HUMAN NECESSITIES
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/38—Joints for elbows or knees
    • A61F2/3859—Femoral components
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/28—Materials for coating prostheses
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/28—Materials for coating prostheses
    • A61L27/30—Inorganic materials
    • A61L27/306—Other specific inorganic materials not covered by A61L27/303 - A61L27/32
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
    • A61L27/56—Porous materials, e.g. foams or sponges
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30003—Material related properties of the prosthesis or of a coating on the prosthesis
    • A61F2002/30004—Material related properties of the prosthesis or of a coating on the prosthesis the prosthesis being made from materials having different values of a given property at different locations within the same prosthesis
    • A61F2002/30011—Material related properties of the prosthesis or of a coating on the prosthesis the prosthesis being made from materials having different values of a given property at different locations within the same prosthesis differing in porosity
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30108—Shapes
    • A61F2002/30199—Three-dimensional shapes
    • A61F2002/30205—Three-dimensional shapes conical
    • A61F2002/3021—Three-dimensional shapes conical frustoconical
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30331—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30331—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
    • A61F2002/30332—Conically- or frustoconically-shaped protrusion and recess
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30331—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
    • A61F2002/30332—Conically- or frustoconically-shaped protrusion and recess
    • A61F2002/30339—Double cones, i.e. connecting element having two conical connections, one at each of its opposite ends
    • A—HUMAN NECESSITIES
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
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    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
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    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30461—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements sutured, ligatured or stitched
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
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    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
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    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30604—Special structural features of bone or joint prostheses not otherwise provided for modular
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
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    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30604—Special structural features of bone or joint prostheses not otherwise provided for modular
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    • A61F2/02—Prostheses implantable into the body
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
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    • A61F2002/30772—Apertures or holes, e.g. of circular cross section
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2/02—Prostheses implantable into the body
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    • A61F2/3662—Femoral shafts
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    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2220/0033—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
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    • A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
    • A61F2250/0023—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in porosity
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    • A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
    • A61F2250/0023—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in porosity
    • A61F2250/0024—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in porosity made from both porous and non-porous parts, e.g. adjacent parts
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    • A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005—The prosthesis being constructed from a particular material
    • A61F2310/00179—Ceramics or ceramic-like structures
    • A61F2310/00293—Ceramics or ceramic-like structures containing a phosphorus-containing compound, e.g. apatite
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    • A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00389—The prosthesis being coated or covered with a particular material
    • A61F2310/00395—Coating or prosthesis-covering structure made of metals or of alloys
    • A61F2310/00419—Other metals
    • A61F2310/00544—Coating made of tantalum or Ta-based alloys
    • A—HUMAN NECESSITIES
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    • A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00389—The prosthesis being coated or covered with a particular material
    • A61F2310/00592—Coating or prosthesis-covering structure made of ceramics or of ceramic-like compounds
    • A61F2310/00796—Coating or prosthesis-covering structure made of a phosphorus-containing compound, e.g. hydroxy(l)apatite
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    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2430/00—Materials or treatment for tissue regeneration
    • A61L2430/02—Materials or treatment for tissue regeneration for reconstruction of bones; weight-bearing implants

Definitions

  • Modular prosthesis for at least partial replacement of a long bone adjacent to a joint
  • the invention relates to a modular endoprosthesis for at least partial replacement of a tubular bone comprising, as module components, a shaft for insertion into a bone cavity of the tubular bone, an end piece comprising a support body and a neck part arranged on the medial side with a receptacle for a joint device.
  • Various types of endoprostheses are known for replacing diseased or defective bones and joints. In particular, these are pure joint endoprostheses or those that also partially or completely replace the adjacent tubular bones. They have a shaft extending over the length of the long bone to be replaced. The shaft replaces or strengthens the diseased or missing area of the bone. It is often connected to a joint unit that replaces an adjacent joint (e.g. knee or hip).
  • the dimensions of the prosthesis shaft must therefore be selected in accordance with the respective anatomy and pathology of the patient.
  • Modular endoprosthesis systems are known for adapting to individual needs. They comprise a shaft, possibly several intermediate pieces and an end piece, which mostly forms a joint component at the same time. Such a system is known, for example, from DE 20 2004 019 264 U1.
  • a modular system from DePuy, Inc. (USA) with the designation Orthopedic Salvage System is also known from prior use which the end piece is provided with a circumferential porous coating.
  • the invention is based on the object of creating a modular endoprosthesis of the type mentioned at the outset, which has a better behavior with regard to muscle growth.
  • a modular endoprosthesis for at least partial replacement of a tubular bone comprising as modular components a shaft for insertion into a bone cavity of the tubular bone, an end piece comprising a support body with an anterior, posterior, lateral and medial side and with a neck part arranged on the medial side with a receptacle for a joint device, and at least one intermediate piece
  • the module components for example, via plug connections or other types of connection, can be coupled and detached with one another along a longitudinal axis of the shaft
  • the end piece has at least two different surface designs on its Has support body, a closed surface on a medial side facing the neck part and a porous design of the surface on the lateral side facing away from the neck part.
  • lateral means laterally, pointing outwards
  • medial laterally, pointing towards the (body) center, pointing anteriorly forwards and posteriorly pointing backwards.
  • the invention is based on the idea of making a favorable porous design of the surface for the growth of muscle tissue ge aims at a certain point, specifically only there and not circumferentially.
  • This particular location is the lateral side; H. the side facing outwards in the implanted state.
  • the porous design creates a basis for the reliable growth of soft tissues, including muscle tissue, and, on the other hand, the precise positioning of the porous design and its concentration on the specific location (and only there, i.e. not all around) specifically and specifically achieves a favorable growth behavior of the muscle, which is intended to attack precisely at this particular point in the sense of a favorable power transmission to the prosthesis (and thus to the corresponding extremity).
  • the muscle which according to the invention is specifically offered a location-specific growth point is the so-called "gluteus medus".
  • the invention has recognized that with such a design a location-specific growth of the muscle can be achieved in such a way that a direct connection of the muscle results.
  • the sewing conventionally required to connect the muscle to the end piece of the endoprosthesis is no longer necessary.
  • the direct connection is capable of greater force transmission and is more robust, in particular to the technique of suturing the muscle that has so far been frequently used in the prior art. Because this sewing basically damages the Muscle and leads to a stress concentration in the area of the seams, which can lead to unfavorable stress peaks and thus to a negatively forecast fastening (safety).
  • the design for direct connection avoids these disadvantages.
  • the trauma to the muscle created by sewing and the stress peaks occurring at the respective seams can thus be avoided thanks to the invention with the location-specific direct growth of the muscle. A faster and more reliable mobilization of the patient can be achieved in this way and with a reduced risk of complications.
  • the porous design of the surface is designed as an open-line porous lattice structure which is formed from a plurality of typically regularly arranged unit cells; however, an irregular arrangement of the unit cells should not be excluded.
  • Such an open-line structure promotes rapid growth of the muscle tissue into deeper lying pores, which results in a higher loading capacity of the muscle / endoprosthesis connection, thus also improving the power transmission between the muscle and the endoprosthesis.
  • the ele mentary cells are designed as a built structure and each composed of an interior space and a plurality of interconnected webs surrounding the interior space. For example, such a built structure can be produced efficiently using additive processes (including 3D printing).
  • the structure of the unit cells can be precisely defined here. This enables a defined arrangement of the cells and the elements forming them, in particular their webs.
  • these methods are suitable for producing the implant from biocompatible material, in particular Their metallic material selected from a group comprising pure titanium, titanium alloys, cobalt chrome, tantalum, stainless steel and zirconium.
  • the porous lattice structure is advantageously provided with a growth-promoting coating.
  • a coating accelerates the ongrowth and ingrowth of soft tissue, in particular special muscle material and their tendons.
  • coatings with tantalum material are particularly preferred.
  • the porous design expediently has pores with a width in the range between 0.4 and 2 mm, preferably 0.7 to 1.5 mm. These relatively large pores offer more favorable ingrowth behavior and, above all, anchoring potential for muscle tissue.
  • the porous design extends from the lateral side like a half-shell to the frontal as well as to the posterior side.
  • the porous design thus extends over a considerable area of the circumference of the supporting body carrying the neck piece, but without being completely circumferential. This becomes a broader one, however Precisely defined growth area for adjacent soft tissues, especially muscles, created.
  • half-shell is to be understood as qualitative; it does not necessarily have to be a circumferential angle of 180 °, in many cases it can also be less (or a little more). A range for the circumferential angle of the coating of approximately 120 ° to 210 ° is preferred.
  • porous design For qualification as half-shell-like, it is important that the porous design, starting from the lateral side surface, extends both to the front and to the rear (towards the posterior), but without also extending over the medial area (that would then be circumferential what should be excluded).
  • a rounding with a lateral flattening is expediently provided at the transition between the lateral side to the frontal side and / or to the posterior side.
  • a flattening on the latera len side a wider and relatively flat contact and growth surface for the surrounding soft tissue, in particular muscles, can be created. This favors growth over a larger area, which enables better and more robust power transmission from the muscle to the prosthesis.
  • the lateral flattening is flat or has a minimum radius of curvature of twice the distance from the anterior to the posterior side of the support body.
  • the subsequent rounding ensures a harmonious, stepless and edge-free transition to the anterior or posterior, which avoids the risk of the soft tissue that has grown, in particular muscle, becoming detached in this critical area. It is particularly useful if the rounding has a radius of curvature that is at most a quarter of the distance from the frontal to the posterior side of the support body. In terms of a more comprehensive integration into the surrounding soft part tissue, it is also advantageous if the porous Gestal device also extends on an upper side of the support body, but continues to be rich only in a lateral area. With the extension to the top, a physio logically and anatomically favorable growth possibility for the muscle, in particular the gluteus maxims, is created.
  • the supporting body is advantageously tapered at its lower end and the porous design extends as far as the tapered area. In other words, this means that the porous design ends in the area of the transition to the taper.
  • the attachment site is limited to the upper area of the support body, which provides an advantage with regard to the biomechanics and their leverage.
  • the endoprosthesis according to the invention is designed so that it belongs to a prosthesis system that includes modular components, in particular also special interchangeable pieces and / or end pieces.
  • the modular components can be connected by means of matching connections, in particular plug connections and anti-rotation locks.
  • FIG. 1 shows a view of a modular femoral prosthesis for a femoral component of a proximal hip joint with an end piece according to an exemplary embodiment
  • Fig. 2 is a view of a total femoral prosthesis
  • 3a, b show a frontal and a perspective view of the end piece according to the exemplary embodiment
  • FIG. 4 shows a schematic representation of adjacent unit cells of a porous design
  • Fig. 5 is a perspective view of a replacement inter mediate piece.
  • a modular endoprosthesis according to the exemplary embodiment shown in the figures is designed as a modular femoral component of a hip joint endoprosthesis for implantation on a femur 9.
  • it comprises a shaft part 1, an intermediate piece 2 and an end piece 3.
  • the individual components 1, 2 , 3 are connected to one another in a rotationally fixed manner, for example via plug connections 5.
  • the shaft part 1 comprises a tapering anchoring area 11 in the lower section with several anchoring ribs 13 running in the longitudinal direction of the shaft part 1.
  • the anchoring area 11 is designed to be implanted in a bone cavity (intramedullary canal) 91 of the femur 9.
  • the upper part of the shaft part 1 also includes a coupling part 12 with a larger cross-section.
  • This has a cylindrical jacket and is connected via a conical plug connection (not visible in FIG. 1) by means of a male part and an adjacent intermediate piece 2 ordered female part connected to the intermediate piece 2.
  • the intermediate piece 2 in turn is correspondingly connected to the end piece 3 via a wider re cone plug connection 5.
  • the end piece 3 is subdivided into two areas: on the one hand, it comprises, as the main component, a support body 31 with a female cone as part of the plug connection 5 to the intermediate piece 2 and a neck part 32 which comprises a retaining pin 33 formed as a cone stump for receiving a joint ball 34 as part of a joint device of an artificial hip joint, the joint ball 34 in the implanted state in a socket of an acetabular component (not shown) represents) of the artificial hip joint is pivotably mounted.
  • the retaining pin 33 of the neck part 32 is arranged on a medial side 36 of the end piece 3; Opposite it is the lateral side 38 of the end piece 3, which are each connected via an anterior side 35 and a rear (posterio re) side 37.
  • the end piece 3 has, as a further main component, a porous design 6 of its surface, which is provided in an upper region of the support body 31 on the lateral side, and only there. This will be explained in more detail later.
  • FIG. 1 recognizes the end piece 3 *, which corresponds to the end piece 3, but in contrast to this does not have a laterally-sided porous design 6, but has a differently designed, namely closed and smooth upper surface 6 'all around.
  • the intermediate piece 2 is again inserted.
  • the shaft part 1 * is not intended for anchoring in the intramedullary canal 91 of the femur 9, but instead completely replaces the natural femur 9 namely by a long shaft part, which is composed of several intermediate pieces 2 'and 2 "of different lengths.
  • a condyle piece 10 is arranged as a lower end piece.
  • the porous surface design 6 extends from the La teralseite 38 also to the anterior and posterior. Thus, he extends the porous surface design 6 half-shell type also over the transition to the anterior side 35 and the posterior side 37. With respect to a central axis 30 of the end piece 3, the porous design 6 extends over a circumferential angle of about 160 °; The exact value is not so important as the fact that the porous design 6 does not run all around, that is to say that the angle is significantly smaller than 360 °, preferably at most 200 ° or even at most 180 °. In the remaining angular range, the surface 6 'is designed differently, namely closed and smooth in the illustrated embodiment.
  • the porous design 6 is located approximately in the upper Hälf te of the support body 31 of the end piece 3.
  • the porous design 6 forms a defined starting point for soft tissue, specifically for the growth of the gluteus maxims (not shown). Thanks to the porous design 6, the muscle can grow precisely on the area marked by the porous design 6 and not in other areas. In this way, a precisely defined connection of the muscle to the modular endoprosthesis is achieved. This effectively prevents growth in an undesired location.
  • the porous design 6 is shown schematically in Fi gur 4.
  • the porous design 6 is designed as an open-line porous lattice structure. This is formed by an additive process (3D printing), e.g. EBM Structure comprising a plurality of regularly arranged unit cells 4. In the exemplary embodiment shown, these are formed in that the unit cells 4 each have an interior space 40 and a plurality of interconnected webs 41, 42, 43, 44.
  • 3D printing e.g. EBM Structure comprising a plurality of regularly arranged unit cells 4.
  • the unit cells 4 each have an interior space 40 and a plurality of interconnected webs 41, 42, 43, 44.
  • This creates an open-line structure which, on the one hand, ensures good penetration thanks to numerous interconnected cavities 40 and, on the other hand, ensures a solid and robust attachment thanks to many existing undercuts, which is of considerable advantage, especially when connecting force-transmitting muscle tissue is.
  • porous lattice structure 6 can be provided with a growth-promoting coating 45. Expediently, this is also arranged in the individual unit cells 4, namely on the various webs 41, 42, 43, 44, and indeed also in the depth of the open-line porous design 6. This further promotes the ingrowth behavior and thus enables rapid and reliable Remobilization of the patient.
  • the porous design 6 also preferably extends partially in addition to the upper side of the support body 31, but still exclusively in the lateral area of the upper side.
  • a flattening 39 is preferably provided on the lateral side 38 (see the area highlighted by the bold dashed lines in FIG. 3b)).
  • "flat” is understood to mean no or only a slight curvature, whose radius of curvature R is at least the, preferably double, distance d from the anterior to the posterior side of the support body 31.
  • R radius of curvature
  • one or more extending through holes 8 can be arranged transversely to the central axis 30 in the lateral region of the support body 31, which open device 6 in the region of the porous Gestal.
  • their respective mouths 80 are surrounded by a border 81 which surrounds the respective mouth 80 like a hofar. In this area, the surface is designed to be closed, so it is not porous.
  • FIG. It shows an interchangeable adapter 2 *. It is essentially designed like the intermediate piece 2 shown in FIGS. 1 and 2 and, like this, has a conical plug connection 5.
  • the interchangeable intermediate piece 2 * is also provided with a porous design 6 on its surface. This is constructed in accordance with the porous design 6, but covers the outer surface of the interchangeable piece 2 * completely circumferentially. This provides an exchange piece for the modular endoprosthesis that can be used wherever the medical indication calls for favorable conditions for the growth of soft tissue. The area of application of the modular endoprosthesis expands as a result.

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Public Health (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Cardiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Chemical & Material Sciences (AREA)
  • Epidemiology (AREA)
  • Medicinal Chemistry (AREA)
  • Dermatology (AREA)
  • Dispersion Chemistry (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Inorganic Chemistry (AREA)
  • Prostheses (AREA)
EP20771861.0A 2019-09-18 2020-09-16 Modulare prothese zum mindestens teilweisen ersatz eines an ein gelenk angrenzenden röhrenknochens Pending EP4031071A1 (de)

Applications Claiming Priority (2)

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EP19198089 2019-09-18
PCT/EP2020/075845 WO2021053004A1 (de) 2019-09-18 2020-09-16 Modulare prothese zum mindestens teilweisen ersatz eines an ein gelenk angrenzenden röhrenknochens

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EP (1) EP4031071A1 (zh)
JP (1) JP2022548706A (zh)
KR (1) KR20220064390A (zh)
CN (1) CN114423385A (zh)
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024043972A1 (en) * 2022-08-23 2024-02-29 Arthrex, Inc. Configurable orthopaedic implant systems and methods of assembling

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2833873T3 (es) * 2017-12-15 2021-06-15 Link Waldemar Gmbh Co Sistema de eje de endoprótesis modular con elemento de rotación

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4834758A (en) * 1988-05-26 1989-05-30 New York Society For The Relief Of The Ruptured And Crippled, Maintaining The Hospital For Special Surgery Bone prosthesis for the leg and thigh
DE202004019264U1 (de) 2004-12-13 2006-04-27 Waldemar Link Gmbh & Co. Kg Prothese zum teilweisen Ersatz eines Röhrenknochens und zugehöriges Instrumentarium
US8177849B2 (en) * 2007-05-07 2012-05-15 Zimmer, Inc. Methods and apparatuses for attaching tissue to orthopaedic implants
US20080281428A1 (en) * 2007-05-07 2008-11-13 Zimmer, Inc. Methods and apparatuses for attaching soft tissue to orthopaedic implants
US8715356B2 (en) * 2010-04-13 2014-05-06 Biomet Manufacturing, Llc Prosthetic having a modular soft tissue fixation mechanism
US8979940B2 (en) * 2012-12-14 2015-03-17 Biomet Manufacturing, Llc Modular attachment mechanism in prosthetic implants
US20160296336A1 (en) * 2015-04-07 2016-10-13 Gerhard E. Maale Torsionally Stabilized Endoprosthetic Device
US11166820B2 (en) * 2015-07-09 2021-11-09 Waldemar Link Gmbh & Co. Kg Porous structure for bone implants

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024043972A1 (en) * 2022-08-23 2024-02-29 Arthrex, Inc. Configurable orthopaedic implant systems and methods of assembling

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JP2022548706A (ja) 2022-11-21
AU2020351036A1 (en) 2022-05-05
US20220401219A1 (en) 2022-12-22
WO2021053004A1 (de) 2021-03-25
CN114423385A (zh) 2022-04-29

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