US3871031A - Total hip prosthetic apparatus made of non-porous alumina - Google Patents

Total hip prosthetic apparatus made of non-porous alumina Download PDF

Info

Publication number
US3871031A
US3871031A US314461A US31446172A US3871031A US 3871031 A US3871031 A US 3871031A US 314461 A US314461 A US 314461A US 31446172 A US31446172 A US 31446172A US 3871031 A US3871031 A US 3871031A
Authority
US
United States
Prior art keywords
piece
bone
anfractuosities
hip
anchoring
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.)
Expired - Lifetime
Application number
US314461A
Inventor
Pierre Boutin
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.)
Ceraver SA
Original Assignee
Ceraver SA
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
Priority claimed from FR7143504A external-priority patent/FR2163859A6/fr
Priority to DE2259313A priority Critical patent/DE2259313C3/en
Application filed by Ceraver SA filed Critical Ceraver SA
Priority to US314461A priority patent/US3871031A/en
Priority to FR7245038A priority patent/FR2225924A6/fr
Application granted granted Critical
Publication of US3871031A publication Critical patent/US3871031A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • A61F2/32—Joints for the hip
    • 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
    • A61F2/34—Acetabular cups
    • 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
    • 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
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/3082—Grooves
    • A61F2002/30827—Plurality of grooves
    • 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
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30878—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts
    • A61F2002/30879—Ribs
    • 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
    • A61F2/3094—Designing or manufacturing processes
    • A61F2002/30968—Sintering
    • 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
    • A61F2/34—Acetabular cups
    • A61F2002/3412—Acetabular cups with pins or protrusions, e.g. non-sharp pins or protrusions projecting from a shell surface
    • 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
    • A61F2/34—Acetabular cups
    • A61F2002/3412—Acetabular cups with pins or protrusions, e.g. non-sharp pins or protrusions projecting from a shell surface
    • A61F2002/3414—Polar protrusion, e.g. for centering two concentric shells
    • 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
    • A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
    • A61F2002/3625—Necks
    • A61F2002/3631—Necks with an integral complete or partial peripheral collar or bearing shoulder at its base
    • 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
    • A61F2002/3678—Geometrical features
    • A61F2002/3686—Geometrical features bent
    • 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
    • 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
    • A61F2310/00185—Ceramics or ceramic-like structures based on metal oxides
    • A61F2310/00203—Ceramics or ceramic-like structures based on metal oxides containing alumina or aluminium oxide

Definitions

  • ABSTRACT A prosthetic apparatus designed to replace a natural articulation between bones including a first hemispherical piece having a plurality of discontinuities on the outer convex surface thereof for attachment to a first bone and having an anchoring projection extending therefrom having an axis offset from the axis of the hemispherical piece, and a second elongated piece attached to a second bone and having a head portion providing the cooperating surface with the hemispherical piece.
  • the present invention relates to improvements in a prosthetic device designed for replacing a natural articulation between two bones, including a first piece attached to the first bone, a second piece attached to the second bone, the cooperating surfaces being made from non-porous alumina, the second piece consisting of two elements, one of which is a metallic rod, and the other a head which is secured to the metallic rod and which comprises the cooperating surface of this second piece. It is concerned more particularly with a prosthetic device for coxo-femoral articulation.
  • each of the pieces onto the corresponding osseous portion may be effected either with the aid of a cement, or by ossification inside pores or striae. 7
  • the present invention aims at remedying the abovementioned disadvantages and at attaining a solid attachment of the piece of the prosthetic device on the corresponding osseous part by ossification.
  • the prosthetic device according to the present invention is characterized in that the part of at least one of the two pieces which comes into contact with the osseous portion to which it must be attached comprises anfractuosities, at least two dimensions of which are in the order of a millimeter. Tests carried out by applicant have shown, in fact, that the natural ossification completely fills up anfractuosities in the order of a millimeter, thus assuring a solid and homogeneous attachment of the piece joined to the corresponding bone.
  • a total prosthetic device ofthe hip comprising a first piece attached to the hipbone, this acetabular piece and a second piece attached to the femur.
  • the convex face of the first piece comprises preferably anfractuosities consisting of grooves whose width and depth are in the order of a millimeter.
  • the convex face of the first piece comprises preferably, along with these grooves, or independently of the latter, at least one anchoring projection for reinforcing the mechanical anchoring which is provided.
  • the presence of the anchoring projection or stud facilitates the placement of the acetabular piece into a milled portion of the acetabulum.
  • This anchoring projection is placed in position in a previously bored seat in the acetabulum and assures the guidance ofthe milling tool. It contributes furthermore to the mechanical bond by reossification.
  • the bottom of the acetabulum or socket has a relatively small thickness in the axis of the acetabular piece and it is not very spongy relatively speaking, which is in turn not very favorable for the desired reossification process.
  • the anchoring projection In accordance with another characteristic of the present invention, the anchoring projection. or at least one of these in case the acetabular piece comprises several of them, has an axis different from that of the rest of this piece, traversing an area of the acetabulum having a thickness greater than that traversed by the axis of the rest of the piece. Furthermore, the area of the acetabulum in which the anchoring projection will come to be positioned is in that case of a spongy nature, which is favorable for the reossification process.
  • the axis of the anchoring projection forms an angle of about 10 with that of the rest of the acetabular piece.
  • the axis of the anchoring projection is parallel to that of the rest of the acetabular piece.
  • the acetabular piece may, however, comprise a second anchoring projection whose axis coincides with its natural axis in the case where an axial centering of the acetabular piece at the moment of its positioning appears advantageous.
  • the anchoring projection and/or projections are preferably provided with anfractuosities analogous to those of the convex surface of the acetabular piece with a view toward facilitating the reossification process at the contact surfaces.
  • FIG. 1 is a profile view, partially in section, of an acetabular piece comprising a coaxial anchoring projection
  • FIG. 2 is a plan view of the piece shown in FIG. 1;
  • FIG. 3 is a cross-sectional view of a coxo-femoral prosthesis comprising an acetabular piece, such as that shown in FIG. 1;
  • FIG. 4 is a cross-sectional view of a coxo-femoral prosthesis comprising an acetabular piece with an anchoring projection whose axis is angularly shifted with respect to the axis of the acetabular piece and intersects the latter in the center of the spherical envelope of the exterior surface of the acetabular piece;
  • FIG. 5 is a schematic view of an acetabular piece with an anchoring projection having the axis thereof angularly shifted with respect to its proper one, but intersecting the latter beyond the center of the spherical envelope of its exterior surface;
  • FIG. 6 is a schematic view of an acetabular piece with an anchoring projection having the axis thereof angularly shifted with respect to its proper one, but intersecting the latter on this side of the center of the spherical envelope of its exterior surface;
  • FIG. 7 is a schematic view of an acetabular piece with an anchoring projection having the axis parallel to the normal one thereof.
  • the acetabular piece shown in FIGS. 1 and 2 the female portion of the coxo-femoral articulation, is made from alumina obtained by fritting. It is made essentially with a hemispherical form or shape and comprises notably a concave face 4 smoothed and ground. This face is the one which assures the contact between the two pieces of the articulation.
  • the convex face 1 which serves for the attachment to the osseous matter comprises anfractuosities consisting of grooves 2 and 3 which are respectively disposed along parallel meridian lines of the sphere.
  • this piece comprises an anchoring projection 5 which is located substantially at the top of the hemisphere.
  • This projection improves the mechanical linkage or connection between the aforementioned piece and the osseous part to which it is attached.
  • the projection may in turn also be provided with anfractuosities, and the total length of the latter will thus be increased.
  • the grooves 2 and 3 may have a width of 1.2 mm and a depth of 1 mm.
  • the grooves, such as grooves 2 are 12 in number, and those such grooves 3 are eight in number. But this may not be necessarily so.
  • the shape and arrangement or provision of these grooves may also be different.
  • the rod which serves for the implantation thereof may also comprise, in the same manner as the acetabular piece described, anfractuosities which assure its fixation, or attachment, by means of natural ossification.
  • these anfractuosities at least two dimensions of which are in the order of a millimeter, do not necessarily constitute a network of grooves; they may instead be detached and distributed more or less regularly. They can be obtained by pressing, for example.
  • the prosthetic device for the articulation of the hip consists of an acetabular piece 1, of a femoral piece 12 equipped with a spherical head 13 forming a ball-and-socket joint with a spherical housing 14 arranged in the piece 1.
  • the metallic piece 12 is fixed or secured in the femur and the piece 1 is fixed or secured to the acetabulum or socket, but the anchoring projection 15 is not disposedaccording to the axis of the acetabular piece and the axis XY thereof forms a certain angle, for example about 25, with the axis of symmetry 00'.
  • the axis XY intersects the latter at the center 16 of the spherical envelope of the exterior surface 17 of the acetabular piece. This provision allows for placing or embedding the anchoring projection 15 in an osseous portion that is more solid and thicker, and whose spongy nature is more favorable than that of the bottom 6 of the socket (FIG. 3) for the reossification'process.
  • the axis XY of the projection will come to intersect the axis of symmetry 00' of the acetabular piece beyond the center 16 of the spherical envelope of the exterior surface thereof.
  • the axis XY thus forms a certain angle with the radius of the spherical envelope of the acetabular piece.
  • the axis XY of the projection 15 is parallel to the axis of symmetry 00' of the acetabular piece.
  • the acetabular piece may have two projections, one of which is on the axis 00.
  • This piece may also have several projections, and the form or shape of the latter may be different from that of a cylinder (conical, in the form of a truncated cone, or parallelepipedal, for example).
  • These projections may constitute an integral part of the acetabular piece or they may be added thereto.
  • one or several projections may quite possibly not be integral with the acetabular piece, but instead may be disposed in housings arranged in the latter.
  • the acetabular piece may have a cross section different from that of a portion of the sphere, with preferably an axial symmetry, not taking into account the anchoring projection and/or projections. It may have, moreover, like the complete prosthetic device or apparatus, either one or several of the secondary characteristics defined or set forth herein.
  • a prosthetic apparatus designed to replace a natural articulation between two bones, comprising a first hemispherical piece consisting of non-porous alumina to be attached to a first bone by reossification, a second elongated piece to be attached to a second bone, cooperating surfaces on said first and second pieces being formed from non-porous smoothed and ground alumina, the second piece consisting of two portions, one portion of which is a metallic rod and the other portion of which is a head consisting of non-porous alumina secured to the metallic rod,'said head providing the cooperating surface of said second piece, the outer convex portion of said hemispherical first piece which is to come into contact with an osseous part of the bone to which it must be secured by reossification including a plurality of anfractuosities of a size sufficient to permit ingrowth of osseous cells, and means for anchoring said first piece to said first bone including a first anchoring projection extending from said outer
  • a total prosthetic apparatus of the hip comprising a first hemispherical piece consisting of non-porous alumina to be attached to the hip bone by reossification, a second elongated piece to be attached to the femur, cooperating surfaces on said first and second pieces being formed from non-porous smoothed and ground alumina, the second piece comprising two portions, one portion of which is a metallic rod and the other portion of which is a spherical head consisting of non-porous alumina secured to the metallic rod, said spherical head providing the cooperating surface of said second piece, the outer convex portion of said hemispherical first piece which is to come into contact with the osseous part of the hip bone to which it must be secured by reossification including a plurality of anfractuosities of a size sufficient to permit ingrowth of osseous cells, a first anchoring portion extending from the top of said hemispherical first piece and coaxial

Landscapes

  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)

Abstract

A prosthetic apparatus designed to replace a natural articulation between bones including a first hemispherical piece having a plurality of discontinuities on the outer convex surface thereof for attachment to a first bone and having an anchoring projection extending therefrom having an axis offset from the axis of the hemispherical piece, and a second elongated piece attached to a second bone and having a head portion providing the cooperating surface with the hemispherical piece.

Description

United States Patent Boutin Mar. 18, 1975 TOTAL HIP PROSTHETIC APPARATUS MADE OF NON-POROUS ALUMINA [75] Inventor:
[73] Assignee: Ceraver, Paris, France [22] Filed: Dec. 12, 1972 [21] Appl. No.: 314,461
Pierre Boutin, Pau, France [52] US. Cl. 3/1, 128/92 C, 128/92 CA [51] Int. Cl. ..A6lf1/22 [58] Field of Search..... 3/1; 128/92 C, 92 CA, 92 R [56] References Cited UNITED STATES PATENTS 3,314,420 4/1 67 Smith et al 128/92 C FOREIGN PATENTS OR APPLICATIONS 1,448,955 7/1966 France.... ..l28/92CA 426,096 6/1967 Switzerland 3/1 OTHER PUBLICATIONS Arthroplasty of the Hip by J. Charnley, The Lancet. May 27, 1961, pages 1129-1132.
Primary E.\aminerRonald L. Frinks Attorney, Agent, or Firm-Craig & Antonelli [57] ABSTRACT A prosthetic apparatus designed to replace a natural articulation between bones including a first hemispherical piece having a plurality of discontinuities on the outer convex surface thereof for attachment to a first bone and having an anchoring projection extending therefrom having an axis offset from the axis of the hemispherical piece, and a second elongated piece attached to a second bone and having a head portion providing the cooperating surface with the hemispherical piece.
6 Claims, 7 Drawing Figures pm m gmlslsrs I 3 871 031 SHEET 2 0f 3,
FIG.3
TOTAL IIIP PROSTHETIC APPARATUS MADE OF NON-POROUS ALUMINA The present invention relates to improvements in a prosthetic device designed for replacing a natural articulation between two bones, including a first piece attached to the first bone, a second piece attached to the second bone, the cooperating surfaces being made from non-porous alumina, the second piece consisting of two elements, one of which is a metallic rod, and the other a head which is secured to the metallic rod and which comprises the cooperating surface of this second piece. It is concerned more particularly with a prosthetic device for coxo-femoral articulation.
The attachment of each of the pieces onto the corresponding osseous portion may be effected either with the aid of a cement, or by ossification inside pores or striae. 7
Actually, the use of a cement, which is generally an acrylic cement, presents disadvantages by reason of its nature as an organic synthetic resin which is more or less well tolerated by the organism. This is the reason why the attachment by ossification within pores or striae is preferable. Nevertheless, the usual porosity of fritted alumina (pores with a dimension in the order of microns) involves the risk of not allowing for a sufficient penetration of the pores by the osseous cells, because of their dimensions, and consequently producingtoo fragile an attachment of the piece on the corresponding osseous part.
The present invention aims at remedying the abovementioned disadvantages and at attaining a solid attachment of the piece of the prosthetic device on the corresponding osseous part by ossification.
The prosthetic device according to the present invention is characterized in that the part of at least one of the two pieces which comes into contact with the osseous portion to which it must be attached comprises anfractuosities, at least two dimensions of which are in the order of a millimeter. Tests carried out by applicant have shown, in fact, that the natural ossification completely fills up anfractuosities in the order of a millimeter, thus assuring a solid and homogeneous attachment of the piece joined to the corresponding bone.
In the case ofa total prosthetic device ofthe hip comprising a first piece attached to the hipbone, this acetabular piece and a second piece attached to the femur. The convex face of the first piece comprises preferably anfractuosities consisting of grooves whose width and depth are in the order of a millimeter.
The convex face of the first piece comprises preferably, along with these grooves, or independently of the latter, at least one anchoring projection for reinforcing the mechanical anchoring which is provided. The presence of the anchoring projection or stud facilitates the placement of the acetabular piece into a milled portion of the acetabulum. This anchoring projection is placed in position in a previously bored seat in the acetabulum and assures the guidance ofthe milling tool. It contributes furthermore to the mechanical bond by reossification.
It might appear advantageous to dispose the anchoring projection coaxially to the remainder of the acetabular piece. Nevertheless, the bottom of the acetabulum or socket has a relatively small thickness in the axis of the acetabular piece and it is not very spongy relatively speaking, which is in turn not very favorable for the desired reossification process.
In accordance with another characteristic of the present invention, the anchoring projection. or at least one of these in case the acetabular piece comprises several of them, has an axis different from that of the rest of this piece, traversing an area of the acetabulum having a thickness greater than that traversed by the axis of the rest of the piece. Furthermore, the area of the acetabulum in which the anchoring projection will come to be positioned is in that case of a spongy nature, which is favorable for the reossification process.
According to a first embodiment of the present invention, the axis of the anchoring projection forms an angle of about 10 with that of the rest of the acetabular piece.
According to another embodiment of the present invention, the axis of the anchoring projection is parallel to that of the rest of the acetabular piece.
The acetabular piece may, however, comprise a second anchoring projection whose axis coincides with its natural axis in the case where an axial centering of the acetabular piece at the moment of its positioning appears advantageous.
The anchoring projection and/or projections are preferably provided with anfractuosities analogous to those of the convex surface of the acetabular piece with a view toward facilitating the reossification process at the contact surfaces.
Described hereinafter by way of example and with reference to the accompanying drawings are acetabular pieces according to the present invention.
FIG. 1 is a profile view, partially in section, of an acetabular piece comprising a coaxial anchoring projection;
FIG. 2 is a plan view of the piece shown in FIG. 1;
FIG. 3 is a cross-sectional view of a coxo-femoral prosthesis comprising an acetabular piece, such as that shown in FIG. 1;
FIG. 4 is a cross-sectional view of a coxo-femoral prosthesis comprising an acetabular piece with an anchoring projection whose axis is angularly shifted with respect to the axis of the acetabular piece and intersects the latter in the center of the spherical envelope of the exterior surface of the acetabular piece;
FIG. 5 is a schematic view of an acetabular piece with an anchoring projection having the axis thereof angularly shifted with respect to its proper one, but intersecting the latter beyond the center of the spherical envelope of its exterior surface;
FIG. 6 is a schematic view of an acetabular piece with an anchoring projection having the axis thereof angularly shifted with respect to its proper one, but intersecting the latter on this side of the center of the spherical envelope of its exterior surface; and
FIG. 7 is a schematic view of an acetabular piece with an anchoring projection having the axis parallel to the normal one thereof.
The acetabular piece shown in FIGS. 1 and 2, the female portion of the coxo-femoral articulation, is made from alumina obtained by fritting. It is made essentially with a hemispherical form or shape and comprises notably a concave face 4 smoothed and ground. This face is the one which assures the contact between the two pieces of the articulation. The convex face 1 which serves for the attachment to the osseous matter comprises anfractuosities consisting of grooves 2 and 3 which are respectively disposed along parallel meridian lines of the sphere.
Furthermore, this piece comprises an anchoring projection 5 which is located substantially at the top of the hemisphere. This projection improves the mechanical linkage or connection between the aforementioned piece and the osseous part to which it is attached. Moreover, the projection may in turn also be provided with anfractuosities, and the total length of the latter will thus be increased.
By way of example, the grooves 2 and 3 may have a width of 1.2 mm and a depth of 1 mm. In the example illustrated, the grooves, such as grooves 2, are 12 in number, and those such grooves 3 are eight in number. But this may not be necessarily so. Likewise, the shape and arrangement or provision of these grooves may also be different.
Other modifications with respect to detail may also be applied to the present invention without departing from the spirit and scope thereof. Nevertheless, the rod which serves for the implantation thereof may also comprise, in the same manner as the acetabular piece described, anfractuosities which assure its fixation, or attachment, by means of natural ossification. Moreover, these anfractuosities, at least two dimensions of which are in the order of a millimeter, do not necessarily constitute a network of grooves; they may instead be detached and distributed more or less regularly. They can be obtained by pressing, for example.
As is shown in and apparent from FIG. 3, it is not possible to embed an acetabular piece of this type unless the bottom of the acetabulum or socket 6 has a sufficient thickness. Furthermore, any possible displacing force or stress on the piece in the housing thereof automatically results in a reaction in the peripheral zone or area of the acetabulum or socket in the vicinity of the acetabular piece, in the new osseous cells of reossification.
In FIG. 4 the prosthetic device for the articulation of the hip according to the present invention consists of an acetabular piece 1, of a femoral piece 12 equipped with a spherical head 13 forming a ball-and-socket joint with a spherical housing 14 arranged in the piece 1. The metallic piece 12 is fixed or secured in the femur and the piece 1 is fixed or secured to the acetabulum or socket, but the anchoring projection 15 is not disposedaccording to the axis of the acetabular piece and the axis XY thereof forms a certain angle, for example about 25, with the axis of symmetry 00'. The axis XY intersects the latter at the center 16 of the spherical envelope of the exterior surface 17 of the acetabular piece. This provision allows for placing or embedding the anchoring projection 15 in an osseous portion that is more solid and thicker, and whose spongy nature is more favorable than that of the bottom 6 of the socket (FIG. 3) for the reossification'process.
In FIG. the axis XY of the projection will come to intersect the axis of symmetry 00' of the acetabular piece beyond the center 16 of the spherical envelope of the exterior surface thereof. The axis XY thus forms a certain angle with the radius of the spherical envelope of the acetabular piece.
In FIG. 6 the axis XY of the projection 15 will come to intersect the axis of symmetry 00' of the piece in a point 18 on this side of the center 16.
In FIG. 7 the axis XY of the projection 15 is parallel to the axis of symmetry 00' of the acetabular piece.
In these different cases, as seen in FIGS. 5-7, the lack of axial symmetry of the acetabular piece, by virtue of the position of the anchoring projection thereof, opposes any possible displacing force or stress of this piece in the housing thereof, a positive reaction in a solid and healthy part of the socket.
It is understood, moreover, that, in the case where the axial centering of the anchoring projection with respect to the axis 00' appears advantageous, the acetabular piece may have two projections, one of which is on the axis 00. This piece may also have several projections, and the form or shape of the latter may be different from that of a cylinder (conical, in the form of a truncated cone, or parallelepipedal, for example). These projections may constitute an integral part of the acetabular piece or they may be added thereto. For reasons of facilitating the placement or positioning of the acetabular piece, one or several projections may quite possibly not be integral with the acetabular piece, but instead may be disposed in housings arranged in the latter.
The acetabular piece may have a cross section different from that of a portion of the sphere, with preferably an axial symmetry, not taking into account the anchoring projection and/or projections. It may have, moreover, like the complete prosthetic device or apparatus, either one or several of the secondary characteristics defined or set forth herein.
What is claimed is:
1. A prosthetic apparatus designed to replace a natural articulation between two bones, comprising a first hemispherical piece consisting of non-porous alumina to be attached to a first bone by reossification, a second elongated piece to be attached to a second bone, cooperating surfaces on said first and second pieces being formed from non-porous smoothed and ground alumina, the second piece consisting of two portions, one portion of which is a metallic rod and the other portion of which is a head consisting of non-porous alumina secured to the metallic rod,'said head providing the cooperating surface of said second piece, the outer convex portion of said hemispherical first piece which is to come into contact with an osseous part of the bone to which it must be secured by reossification including a plurality of anfractuosities of a size sufficient to permit ingrowth of osseous cells, and means for anchoring said first piece to said first bone including a first anchoring projection extending from said outer convex portion along the axis of symmetry of said first piece and a second anchoring projection extending along an axis different from and parallel to the axis of symmetry of said first piece, so that the second anchoring projection will extend into an area of the bone to which it is to be attached which is thicker than the area through which the axis of said first anchoring projection extends.
2. A total prosthetic apparatus of the hip according to claim 1, characterized in that the first and second anchoring projections are provided with anfractuosities analogous to those of the convex face of said first piece.
3. A total prosthetic apparatus of the hip according to claim 1, wherein at least two dimensions of said anfractuosities are in the order of a millimeter.
4. A total prosthetic apparatus of the hip, comprising a first hemispherical piece consisting of non-porous alumina to be attached to the hip bone by reossification, a second elongated piece to be attached to the femur, cooperating surfaces on said first and second pieces being formed from non-porous smoothed and ground alumina, the second piece comprising two portions, one portion of which is a metallic rod and the other portion of which is a spherical head consisting of non-porous alumina secured to the metallic rod, said spherical head providing the cooperating surface of said second piece, the outer convex portion of said hemispherical first piece which is to come into contact with the osseous part of the hip bone to which it must be secured by reossification including a plurality of anfractuosities of a size sufficient to permit ingrowth of osseous cells, a first anchoring portion extending from the top of said hemispherical first piece and coaxial therewith, and at least another anchoring portion extending also from said other convex portion and having an axis parallel to the axis of symmetry of the first piece, and adapted to be fitted into an area of the hip bone which is thicker than the area through which the axis of symmetry of the first piece extends.
5. A total prosthetic apparatus of the hip according to claim 4, wherein the anchoring projections are provided with anfractuosities analogous to those of the convex face of said first piece.
6. A total prosthetic apparatus of the hip according to claim 4, wherein at least two dimensions of said anfractuosities are in the order of a millimeter.

Claims (6)

1. A PROSTHETIC APPARATUS DESIGNED TO REPLACE A NATURAL ARTICULATION BETWEEN TWO BONES, COMPRISING A FIRST HEMISPHERICAL PIECE CONSISTING OF NON-POROUS ALUMINA TO BE ATTACHED TO A FIRST BONE BY REOSSIFICATION, A SECOND ELONGATED PIECE TO BE ATTACHED TO A SECOND BONE, COOPERATING SURFACES ON SAID FIRST AND SECOND PIECES BEING FORMED FROM NON-POROUS SMOOTHED AND GROUND ALUMINA, THE SECOND PIECE CONSISTING OF TWO PORTIONS, ONE PORTION OF WHICH IS A METALIC ROD AND THE OTHER PORTION OF WHICH IS A HEAD CONSISTING OF NON-POROUS ALUMINA SECURED TO THE METALLIC ROD, SAID HEAD PROVIDING THE COOPERATING SURFACE OF SAID SECOND PIECE, THE OUTER CONVEX PORTION OF SAID HEMISPHERICAL FIRST PIECE WHICH IS TO COME INTO CONTACT WITH AN OSSEOUS PART OF THE BONE TO WHICH IT MUST BE SECURED BY REOSSIFICATION INCLUDING A PLURALITY OF ANFRACTUOSITIES OF A SIZE SUFFICIENT TO PERMIT INGROWTH OF OSSEOUS CELLS, AND MEANS FOR ANCHORING SAID FIRST PIECE TO SAID FIRST BONE INCLUDING A FIRST ANCHORING PROJECTION EXTENDING FROM SAID OUTER CONVEX POR-
2. A total prosthetic apparatus of the hip according to claim 1, characterized in that the first and second anchoring projections are provided with anfractuosities analogous to those of the convex face of said first piece.
3. A total prosthetic apparatus of the hip according to claim 1, wherein at least two dimensions of said anfractuosities are in the order of a millimeter.
4. A total prosthetic apparatus of the hip, comprising a first hemispherical piece consisting of non-porous alumina to be attached to the hip bone by reossification, a second elongated piece to be attached to the femur, cooperating surfaces on said first and second pieces being formed from non-porous smoothed and ground alumina, the second piece comprising two portions, one portion of which is a metallic rod and the other portion of which is a spherical head consisting of non-porous alumina secured to the metallic rod, said spherical head providing the cooperating surface of said second piece, the outer convex portion of said hemispherical first piece which is to come into contact with the osseous part of the hip bone to which it must be secured by reossification including a plurality of anfractuosities of a size sufficient to permit ingrowth of osseous cells, a first anchoring portion extending from the top of said hemispherical first piece and coaxial therewith, and at least another anchoring portion extending also from said other convex portion and having an axis parallel to the axis of symmetry of the first piece, and adapted to be fitted into an area of the hip bone which is thicker than the area through which the axis of symmetry of the first piece extends.
5. A total prosthetic apparatus of the hip according to claim 4, wherein the anchoring projections are provided with anfractuosities analogous to those of the convex face of said first piece.
6. A tOtal prosthetic apparatus of the hip according to claim 4, wherein at least two dimensions of said anfractuosities are in the order of a millimeter.
US314461A 1971-12-03 1972-12-12 Total hip prosthetic apparatus made of non-porous alumina Expired - Lifetime US3871031A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE2259313A DE2259313C3 (en) 1971-12-03 1972-12-04 Prosthesis to replace a joint
US314461A US3871031A (en) 1971-12-03 1972-12-12 Total hip prosthetic apparatus made of non-porous alumina
FR7245038A FR2225924A6 (en) 1971-12-03 1972-12-18

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR7143504A FR2163859A6 (en) 1971-12-03 1971-12-03
US314461A US3871031A (en) 1971-12-03 1972-12-12 Total hip prosthetic apparatus made of non-porous alumina
FR7245038A FR2225924A6 (en) 1971-12-03 1972-12-18

Publications (1)

Publication Number Publication Date
US3871031A true US3871031A (en) 1975-03-18

Family

ID=27249716

Family Applications (1)

Application Number Title Priority Date Filing Date
US314461A Expired - Lifetime US3871031A (en) 1971-12-03 1972-12-12 Total hip prosthetic apparatus made of non-porous alumina

Country Status (2)

Country Link
US (1) US3871031A (en)
FR (1) FR2225924A6 (en)

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3977026A (en) * 1974-05-29 1976-08-31 Ceraver Bone prosthesis made of sintered alumina
US3979779A (en) * 1974-11-15 1976-09-14 Rosenthal Technik Ag Ceramic implant
US4274164A (en) * 1978-08-04 1981-06-23 Orthoplant Orthopadische Implantate Gmbh & Co. Kg Endoprosthesis for a hip joint, especially for the hip joint of a human being
US4385405A (en) * 1979-10-03 1983-05-31 Teinturier Pierre L Hip prosthesis and its method of fitting
US4551863A (en) * 1981-09-28 1985-11-12 Murray William M Femoral component and method
US4834757A (en) * 1987-01-22 1989-05-30 Brantigan John W Prosthetic implant
US4871369A (en) * 1987-11-23 1989-10-03 Pfizer Hospital Products Group, Inc. Long stem hip implant
US5263953A (en) * 1991-12-31 1993-11-23 Spine-Tech, Inc. Apparatus and system for fusing bone joints
WO1994023670A1 (en) * 1993-04-22 1994-10-27 Implex Corporation Prosthetic acetabular cup and method of implant
US5769781A (en) * 1995-11-13 1998-06-23 Chappuis; James L. Protector retractor
US5885299A (en) * 1994-09-15 1999-03-23 Surgical Dynamics, Inc. Apparatus and method for implant insertion
US5906616A (en) * 1994-09-15 1999-05-25 Surgical Dynamics, Inc. Conically shaped anterior fusion cage and method of implantation
US6123912A (en) * 1998-05-06 2000-09-26 National Science Council Process for producing alumina material for artificial skeleton with high strength
US6187045B1 (en) 1999-02-10 2001-02-13 Thomas K. Fehring Enhanced biocompatible implants and alloys
US6290726B1 (en) 2000-01-30 2001-09-18 Diamicron, Inc. Prosthetic hip joint having sintered polycrystalline diamond compact articulation surfaces
US6398815B1 (en) 2000-01-30 2002-06-04 Diamicron, Inc. Prosthetic joint having at least one superhard articulation surface
US6410877B1 (en) 2000-01-30 2002-06-25 Diamicron, Inc. Methods for shaping and finishing prosthetic joint components including polycrystalline diamond compacts
US6425922B1 (en) 2000-01-30 2002-07-30 Diamicron, Inc. Prosthetic hip joint having at least one sintered polycrystalline diamond compact articulation surface
US6488715B1 (en) 2000-01-30 2002-12-03 Diamicron, Inc. Diamond-surfaced cup for use in a prosthetic joint
US6494918B1 (en) 2000-01-30 2002-12-17 Diamicron, Inc. Component for a prosthetic joint having a diamond load bearing and articulation surface
US6596225B1 (en) 2000-01-31 2003-07-22 Diamicron, Inc. Methods for manufacturing a diamond prosthetic joint component
US6676704B1 (en) 1994-08-12 2004-01-13 Diamicron, Inc. Prosthetic joint component having at least one sintered polycrystalline diamond compact articulation surface and substrate surface topographical features in said polycrystalline diamond compact
US6709463B1 (en) 2000-01-30 2004-03-23 Diamicron, Inc. Prosthetic joint component having at least one solid polycrystalline diamond component
US6793681B1 (en) 1994-08-12 2004-09-21 Diamicron, Inc. Prosthetic hip joint having a polycrystalline diamond articulation surface and a plurality of substrate layers
US20040249457A1 (en) * 2003-06-09 2004-12-09 Smith Lane Fielding Mastopexy stabilization apparatus and method
US20050158200A1 (en) * 1994-08-12 2005-07-21 Diamicron, Inc. Use of CoCrMo to augment biocompatibility in polycrystalline diamond compacts
US20050165493A1 (en) * 2004-01-22 2005-07-28 Ries Michael D. Femoral hip prosthesis and method of implantation
US20050182493A1 (en) * 2004-02-18 2005-08-18 Bertram Morton Iii Geometric replacements for defective bone
WO2006092613A2 (en) * 2005-03-03 2006-09-08 Veterinary Innovations Limited Hip replacement device and method
US20070088443A1 (en) * 2001-08-27 2007-04-19 Hanssen Arlen D Prosthetic implant support structure
US7396501B2 (en) 1994-08-12 2008-07-08 Diamicron, Inc. Use of gradient layers and stress modifiers to fabricate composite constructs
US20080195220A1 (en) * 2000-01-30 2008-08-14 Diamicron, Inc. Prosthetic hip joint having polycrystalline diamond articulation surfaces and at least one solid polycrystalline diamond compact
US20080200990A1 (en) * 2007-02-16 2008-08-21 Mctighe Timothy Tissue sparing implant
US7494507B2 (en) 2000-01-30 2009-02-24 Diamicron, Inc. Articulating diamond-surfaced spinal implants
US20110009974A1 (en) * 2001-08-27 2011-01-13 Zimmer Technology, Inc. Tibial augments for use with knee joint prostheses, method of implanting the tibial augment, and associated tools
US20110112651A1 (en) * 2001-08-27 2011-05-12 Zimmer, Inc. Femoral augments for use with knee joint prosthesis
US20120116527A1 (en) * 2009-04-24 2012-05-10 DePul International Limited Surgical prostheses
USD684693S1 (en) 2002-08-22 2013-06-18 Zimmer, Inc. Prosthetic implant support structure
US11141276B2 (en) 2017-01-20 2021-10-12 Biomet Manufacturing, Llc Modular augment component

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2301217A2 (en) * 1975-02-21 1976-09-17 Ceraver Hip prosthesis in alumina - with acetabular part having ridge and grooved anchoring heads
DE2514793C3 (en) 1975-04-04 1980-06-19 Pfaudler-Werke Ag, 6830 Schwetzingen Joint endoprosthesis
DE2559402C3 (en) * 1975-04-04 1981-07-09 Pfaudler-Werke Ag, 6830 Schwetzingen Ball socket for a hip joint prosthesis
FR2361861A1 (en) * 1976-08-19 1978-03-17 Anvar PROSTHESIS FOR ARTHROPLASY OF THE HIP
CH648747A5 (en) * 1981-02-20 1985-04-15 Sulzer Ag JOINT PAN, ANCHORABLE IN THE POOL.
CH661654A5 (en) * 1984-01-11 1987-08-14 Mathys Robert Co ACETOMIC PANEL.
CH663892A5 (en) * 1984-07-03 1988-01-29 Sulzer Ag RIMPLESS ARTICULATING PROSTHESIS.
CH663350A5 (en) * 1984-07-03 1987-12-15 Sulzer Ag Rimless cup prosthesis for a hip joint.
FR2589059B1 (en) * 1985-10-25 1988-01-08 Duthoit Etienne COTYLOIDAL COMPONENT FOR NON-CEMENTED HIP PROSTHESIS
CH673766A5 (en) * 1988-03-01 1990-04-12 Sulzer Ag
US6132469A (en) * 1997-11-07 2000-10-17 Biomet, Inc. Acetabular liner extractor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3314420A (en) * 1961-10-23 1967-04-18 Haeger Potteries Inc Prosthetic parts and methods of making the same

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3314420A (en) * 1961-10-23 1967-04-18 Haeger Potteries Inc Prosthetic parts and methods of making the same

Cited By (80)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3977026A (en) * 1974-05-29 1976-08-31 Ceraver Bone prosthesis made of sintered alumina
US3979779A (en) * 1974-11-15 1976-09-14 Rosenthal Technik Ag Ceramic implant
US4274164A (en) * 1978-08-04 1981-06-23 Orthoplant Orthopadische Implantate Gmbh & Co. Kg Endoprosthesis for a hip joint, especially for the hip joint of a human being
US4385405A (en) * 1979-10-03 1983-05-31 Teinturier Pierre L Hip prosthesis and its method of fitting
US4551863A (en) * 1981-09-28 1985-11-12 Murray William M Femoral component and method
US4878915A (en) * 1987-01-22 1989-11-07 Brantigan John W Surgical prosthetic implant facilitating vertebral interbody fusion
US4834757A (en) * 1987-01-22 1989-05-30 Brantigan John W Prosthetic implant
WO1989009035A1 (en) * 1987-09-11 1989-10-05 Brantigan John W Surgical prosthetic implant facilitating vertebral interbody fusion
US4871369A (en) * 1987-11-23 1989-10-03 Pfizer Hospital Products Group, Inc. Long stem hip implant
US5263953A (en) * 1991-12-31 1993-11-23 Spine-Tech, Inc. Apparatus and system for fusing bone joints
WO1994023670A1 (en) * 1993-04-22 1994-10-27 Implex Corporation Prosthetic acetabular cup and method of implant
US20050158200A1 (en) * 1994-08-12 2005-07-21 Diamicron, Inc. Use of CoCrMo to augment biocompatibility in polycrystalline diamond compacts
US6793681B1 (en) 1994-08-12 2004-09-21 Diamicron, Inc. Prosthetic hip joint having a polycrystalline diamond articulation surface and a plurality of substrate layers
US6676704B1 (en) 1994-08-12 2004-01-13 Diamicron, Inc. Prosthetic joint component having at least one sintered polycrystalline diamond compact articulation surface and substrate surface topographical features in said polycrystalline diamond compact
US6800095B1 (en) 1994-08-12 2004-10-05 Diamicron, Inc. Diamond-surfaced femoral head for use in a prosthetic joint
US7396501B2 (en) 1994-08-12 2008-07-08 Diamicron, Inc. Use of gradient layers and stress modifiers to fabricate composite constructs
US7396505B2 (en) 1994-08-12 2008-07-08 Diamicron, Inc. Use of CoCrMo to augment biocompatibility in polycrystalline diamond compacts
US7077867B1 (en) 1994-08-12 2006-07-18 Diamicron, Inc. Prosthetic knee joint having at least one diamond articulation surface
US5885299A (en) * 1994-09-15 1999-03-23 Surgical Dynamics, Inc. Apparatus and method for implant insertion
US7608105B2 (en) 1994-09-15 2009-10-27 Howmedica Osteonics Corp. Methods of inserting conically-shaped fusion cages
US5906616A (en) * 1994-09-15 1999-05-25 Surgical Dynamics, Inc. Conically shaped anterior fusion cage and method of implantation
US20030114854A1 (en) * 1994-09-15 2003-06-19 Howmedica Osteonics Corp. Conically shaped anterior fusion cage and method of implantation
US5769781A (en) * 1995-11-13 1998-06-23 Chappuis; James L. Protector retractor
US6123912A (en) * 1998-05-06 2000-09-26 National Science Council Process for producing alumina material for artificial skeleton with high strength
US6187045B1 (en) 1999-02-10 2001-02-13 Thomas K. Fehring Enhanced biocompatible implants and alloys
US6773520B1 (en) 1999-02-10 2004-08-10 University Of North Carolina At Charlotte Enhanced biocompatible implants and alloys
US6539607B1 (en) 1999-02-10 2003-04-01 University Of North Carolina At Charlotte Enhanced biocompatible implants and alloys
US6425922B1 (en) 2000-01-30 2002-07-30 Diamicron, Inc. Prosthetic hip joint having at least one sintered polycrystalline diamond compact articulation surface
US6488715B1 (en) 2000-01-30 2002-12-03 Diamicron, Inc. Diamond-surfaced cup for use in a prosthetic joint
US6290726B1 (en) 2000-01-30 2001-09-18 Diamicron, Inc. Prosthetic hip joint having sintered polycrystalline diamond compact articulation surfaces
US6709463B1 (en) 2000-01-30 2004-03-23 Diamicron, Inc. Prosthetic joint component having at least one solid polycrystalline diamond component
US6517583B1 (en) 2000-01-30 2003-02-11 Diamicron, Inc. Prosthetic hip joint having a polycrystalline diamond compact articulation surface and a counter bearing surface
US6497727B1 (en) 2000-01-30 2002-12-24 Diamicron, Inc. Component for use in prosthetic hip, the component having a polycrystalline diamond articulation surface and a plurality of substrate layers
US6494918B1 (en) 2000-01-30 2002-12-17 Diamicron, Inc. Component for a prosthetic joint having a diamond load bearing and articulation surface
US6610095B1 (en) 2000-01-30 2003-08-26 Diamicron, Inc. Prosthetic joint having substrate surface topographical featurers and at least one diamond articulation surface
US6410877B1 (en) 2000-01-30 2002-06-25 Diamicron, Inc. Methods for shaping and finishing prosthetic joint components including polycrystalline diamond compacts
US6402787B1 (en) 2000-01-30 2002-06-11 Bill J. Pope Prosthetic hip joint having at least one sintered polycrystalline diamond compact articulation surface and substrate surface topographical features in said polycrystalline diamond compact
US7494507B2 (en) 2000-01-30 2009-02-24 Diamicron, Inc. Articulating diamond-surfaced spinal implants
US6398815B1 (en) 2000-01-30 2002-06-04 Diamicron, Inc. Prosthetic joint having at least one superhard articulation surface
US20080215158A1 (en) * 2000-01-30 2008-09-04 Diamicron, Inc. Prosthetic hip joint having polycrystalline diamond articulation surfaces and at least one solid polycrystalline diamond compact
US20080195220A1 (en) * 2000-01-30 2008-08-14 Diamicron, Inc. Prosthetic hip joint having polycrystalline diamond articulation surfaces and at least one solid polycrystalline diamond compact
US6596225B1 (en) 2000-01-31 2003-07-22 Diamicron, Inc. Methods for manufacturing a diamond prosthetic joint component
US8535385B2 (en) 2001-08-27 2013-09-17 Zimmer, Inc. Prosthetic implant support structure
US20110009974A1 (en) * 2001-08-27 2011-01-13 Zimmer Technology, Inc. Tibial augments for use with knee joint prostheses, method of implanting the tibial augment, and associated tools
US20070088443A1 (en) * 2001-08-27 2007-04-19 Hanssen Arlen D Prosthetic implant support structure
US10893947B2 (en) 2001-08-27 2021-01-19 Zimmer, Inc. Femoral augments for use with knee joint prosthesis
US10806587B2 (en) 2001-08-27 2020-10-20 Zimmer, Inc. Prosthetic implant support structure
US10653526B2 (en) 2001-08-27 2020-05-19 Zimmer, Inc. Prosthetic implant support structure
US10646346B2 (en) 2001-08-27 2020-05-12 Zimmer, Inc. Prosthetic implant support structure
US10201426B2 (en) 2001-08-27 2019-02-12 Zimmer, Inc. Prosthetic implant support structure
US10098743B2 (en) 2001-08-27 2018-10-16 Zimmer, Inc. Prosthetic implant support structure
US10092404B2 (en) 2001-08-27 2018-10-09 Zimmer, Inc. Prosthetic implant support structure
US10085841B2 (en) 2001-08-27 2018-10-02 Zimmer, Inc. Femoral implant systems
US9044326B2 (en) 2001-08-27 2015-06-02 Zimmer, Inc. Femoral augments for use with knee joint prosthesis
US20110066252A1 (en) * 2001-08-27 2011-03-17 Zimmer, Inc. Prosthetic implant support structure
US20110112651A1 (en) * 2001-08-27 2011-05-12 Zimmer, Inc. Femoral augments for use with knee joint prosthesis
US9907664B2 (en) 2001-08-27 2018-03-06 Zimmer, Inc. Methods for augmenting a tibial component of a knee joint prosthesis
US9713532B2 (en) 2001-08-27 2017-07-25 Zimmer, Inc. Method for augmenting femoral components of knee joint prosthesis
US9539096B2 (en) 2001-08-27 2017-01-10 Zimmer, Inc. Methods for supporting a prosthetic implant in a patient
US8728168B2 (en) * 2001-08-27 2014-05-20 Zimmer, Inc. Prosthetic implant support structure
US8506645B2 (en) 2001-08-27 2013-08-13 Zimmer, Inc. Tibial augments for use with knee joint prostheses
US9265614B2 (en) 2001-08-27 2016-02-23 Zimmer, Inc. Method of implanting the tibial augment
USD684693S1 (en) 2002-08-22 2013-06-18 Zimmer, Inc. Prosthetic implant support structure
US20040249457A1 (en) * 2003-06-09 2004-12-09 Smith Lane Fielding Mastopexy stabilization apparatus and method
US20090216335A1 (en) * 2004-01-22 2009-08-27 Smith & Nephew Femoral Hip Prosthesis and Method of Implantation
US20110004319A1 (en) * 2004-01-22 2011-01-06 Michael D. Ries Femoral Hip Prosthesis and Method of Implantation
US7374576B1 (en) 2004-01-22 2008-05-20 Medicinelodge, Inc Polyaxial orthopedic fastening apparatus with independent locking modes
US20050165493A1 (en) * 2004-01-22 2005-07-28 Ries Michael D. Femoral hip prosthesis and method of implantation
US7534271B2 (en) 2004-01-22 2009-05-19 Smith + Nephew Femoral hip prosthesis and method of implantation
US8157871B2 (en) 2004-01-22 2012-04-17 Michael D Ries Femoral HIP prosthesis and method of implantation
US20050182493A1 (en) * 2004-02-18 2005-08-18 Bertram Morton Iii Geometric replacements for defective bone
US7942880B2 (en) * 2004-02-18 2011-05-17 Bertram Iii Morton Geometric replacements for defective bone
WO2006092613A2 (en) * 2005-03-03 2006-09-08 Veterinary Innovations Limited Hip replacement device and method
WO2006092613A3 (en) * 2005-03-03 2006-10-19 Veterinary Innovations Ltd Hip replacement device and method
US20080200990A1 (en) * 2007-02-16 2008-08-21 Mctighe Timothy Tissue sparing implant
US8894717B2 (en) * 2009-04-24 2014-11-25 Depuy International Limited Surgical prostheses
US8979939B2 (en) 2009-04-24 2015-03-17 Depuy International Limited Surgical prostheses
US20120116527A1 (en) * 2009-04-24 2012-05-10 DePul International Limited Surgical prostheses
US11141276B2 (en) 2017-01-20 2021-10-12 Biomet Manufacturing, Llc Modular augment component
US11559403B2 (en) 2017-01-20 2023-01-24 Biomet Manufacturing, Llc Modular augment component

Also Published As

Publication number Publication date
FR2225924A6 (en) 1974-11-08

Similar Documents

Publication Publication Date Title
US3871031A (en) Total hip prosthetic apparatus made of non-porous alumina
CA2104231C (en) Oblong acetabular cup
US3818512A (en) Artificial hip-joint with detachable insert
JP3810088B2 (en) Acetabular cup body prosthesis
US4532660A (en) Endoprosthetic bone joint devices
US7497876B2 (en) Prosthetic implant
US6527809B1 (en) Trial acetabulum or implantable acetabulum with adjustable orientation
EP1290992B1 (en) Acetabular cup
US6120544A (en) Femur endoprosthesis for articial hip joint
CA1144703A (en) Prosthetic cement spacer and method for using same
US6908486B2 (en) Modular acetabular anti-protrusio cage and porous ingrowth cup combination
US5549699A (en) Bony fixation and support of a prosthesis
CN102438554B (en) acetabular cup
US3918102A (en) Artificial hip joint
US4892549A (en) Dual-radius acetabular cup component
US4960427A (en) Ball and socket bearing for artifical joint
US3698017A (en) Prosthetic acetabular devices
DE58900935D1 (en) JOINT PANEL PART FOR A JOINT PROSTHESIS.
EP1384453A2 (en) Acetabular cup body prosthesis
US4666448A (en) Hip joint socket for cement-free anchoring in the pelvis
JPS62102755A (en) Cup shaped member of artificial hip joint
EP0137040A4 (en) Ball and socket bearing for artificial joint.
IE58604B1 (en) A method of producing a bone implant
US4417571A (en) Prosthetic cement spacer and method for using same
CN112618113A (en) Total hip replacement prosthesis