FR2887137A1 - Femoral rod for hip prosthesis, has proximal and distal parts with specific inclination with respect to rod`s plane of symmetry so that parts form specific angle, where proximal parts extend along specific height of shank - Google Patents

Femoral rod for hip prosthesis, has proximal and distal parts with specific inclination with respect to rod`s plane of symmetry so that parts form specific angle, where proximal parts extend along specific height of shank Download PDF

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Publication number
FR2887137A1
FR2887137A1 FR0506157A FR0506157A FR2887137A1 FR 2887137 A1 FR2887137 A1 FR 2887137A1 FR 0506157 A FR0506157 A FR 0506157A FR 0506157 A FR0506157 A FR 0506157A FR 2887137 A1 FR2887137 A1 FR 2887137A1
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France
Prior art keywords
femoral stem
proximal
parts
respect
groove
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Granted
Application number
FR0506157A
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French (fr)
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FR2887137B1 (en
Inventor
Francois Chalencon
Pierre Yves Glas
Pierre Vallese
Franck Cladiere
Tristan Meusnier
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C2M IMPLANTS
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C2M IMPLANTS
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Priority to FR0506157A priority Critical patent/FR2887137B1/en
Publication of FR2887137A1 publication Critical patent/FR2887137A1/en
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Publication of FR2887137B1 publication Critical patent/FR2887137B1/en
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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
    • 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
    • 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
    • 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
    • A61F2/32—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
    • 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
    • A61F2002/3011—Cross-sections or two-dimensional shapes
    • A61F2002/30112—Rounded shapes, e.g. with rounded corners
    • A61F2002/30113—Rounded shapes, e.g. with rounded corners circular
    • A61F2002/30121—Rounded shapes, e.g. with rounded corners circular with lobes
    • A61F2002/30123—Rounded shapes, e.g. with rounded corners circular with lobes with two diametrically opposed lobes
    • 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
    • A61F2002/30317—The prosthesis having different structural features at different locations within the same prosthesis
    • A61F2002/30322—The prosthesis having different structural features at different locations within the same prosthesis differing in surface structures
    • 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
    • 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
    • A61F2002/30535—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
    • A61F2002/30606—Sets comprising both cemented and non-cemented 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
    • A61F2002/30795—Blind bores, e.g. of circular cross-section
    • A61F2002/308—Blind bores, e.g. of circular cross-section oblong
    • 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
    • A61F2002/30828—Plurality of grooves parallel
    • 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
    • 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
    • A61F2002/365—Connections of heads to necks
    • 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
    • A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2002/4631—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor the prosthesis being specially adapted for being cemented
    • 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
    • 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
    • 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
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0004—Rounded shapes, e.g. with rounded corners
    • A61F2230/0006—Rounded shapes, e.g. with rounded corners circular
    • 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
    • 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
    • A61F2250/0026—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 surface structures

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  • 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

The rod has a slender medullary shank (2) with anterior and posterior sides (5, 6), each divided into proximal and distal parts (5a, 6a, 5b, 6b). The parts (5a, 6a) have an inclination of 3 degrees with respect to a plane of symmetry of the rod such that the parts (5a, 6a) form an angle of six degrees between them. The parts (5b, 6b) have an inclination of one degree with respect to the plane of symmetry so that the parts (5b, 6b) form an angle of 2 degrees between them. The parts (5a, 6a) extend along the height of the shank greater than the height on which the parts (5b, 6b) extend.

Description

La présente invention concerne une tige fémorale de prothèse de hanche.The present invention relates to a hip prosthesis femoral stem.

Une tige fémorale présente classiquement une queue médullaire effilée, destinée à être engagée dans le canal médullaire du fémur, un col faisant saillie à l'extérieur de l'os lorsque la tige est mise en place, et une tête sphérique engagée sur l'extrémité du col. La tête sphérique vient coopérer avec une cavité correspondante que comprend un implant cotyloïdien fixé au bassin.  A femoral stem typically has a tapered medullary tail, intended to be engaged in the medullary canal of the femur, a neck protruding outside the bone when the rod is in place, and a spherical head engaged on the end of the collar. The spherical head cooperates with a corresponding cavity that includes an acetabular implant attached to the pelvis.

La mise en place d'une tige fémorale sur un fémur pose le problème essentiel de l'obtention d'une assise efficace de la tige sur l'os, afin de pouvoir supporter les contraintes répétées générées par le poids du patient, tout en évitant un risque d'éclatement de l'os se lors de l'exercice d'une contrainte, l'os pouvant être abîmé ou fragilisé.  The placement of a femoral stem on a femur raises the essential problem of obtaining an effective seat of the stem on the bone, in order to be able to withstand the repeated stresses generated by the weight of the patient, while avoiding a risk of bursting of the bone during the exercise of a stress, the bone being able to be damaged or weakened.

Pour remédier à ce problème, il a été conçu des tiges fémorales présentant des faces antérieure et postérieure légèrement inclinées par rapport au plan de symétrie de la tige fémorale, ces faces s'éloignant l'une de l'autre depuis la partie distale de la tige fémorale vers la partie proximale de celle-ci.  To remedy this problem, femoral stems having anterior and posterior faces slightly inclined with respect to the plane of symmetry of the femoral stem have been designed, these faces moving away from each other from the distal portion of the femoral stem. femoral stem to the proximal portion thereof.

Cette forme permet d'améliorer l'appui de la tige fémorale sur l'os mais n'élimine pas le risque d'éclatement de l'os particulièrement au niveau de la zone moyenne de celui-ci, c'est-à-dire au niveau de la zone intermédiaire entre les parties métaphysaires et diaphysaires de l'os.  This form makes it possible to improve the support of the femoral stem on the bone but does not eliminate the risk of splitting of the bone particularly at the level of the average zone thereof, that is to say at the level of the intermediate zone between the metaphyseal and diaphyseal parts of the bone.

La présente invention vise à remédier à cet inconvénient essentiel.  The present invention aims to remedy this essential disadvantage.

La tige fémorale qu'elle concerne comprend, de manière connue en soi, une queue médullaire effilée présentant des faces antérieure et postérieure légèrement inclinées par rapport au plan de symétrie de la tige fémorale, ces faces s'éloignant l'une de l'autre depuis la partie distale de la tige fémorale vers la partie proximale de celle-ci.  The femoral stem that it concerns comprises, in known manner, a tapered medullary tail having anterior and posterior faces slightly inclined relative to the plane of symmetry of the femoral stem, these faces moving away from each other from the distal portion of the femoral stem to the proximal portion thereof.

Selon l'invention, lesdites faces antérieure et postérieure se divisent 30 chacune en deux parties, à savoir: - une partie proximale présentant une inclinaison de trois degrés par rapport au plan de symétrie de la tige fémorale, de sorte que les parties proximales des faces antérieure et postérieure forment entre elles un angle de six degrés, et - une partie distale présentant une inclinaison d'un degré par rapport au plan de symétrie de la tige fémorale, de sorte que les parties distales des faces antérieure et postérieure forment entre elles un angle de deux degrés; lesdites parties proximales s'étendant sur une hauteur de la queue médullaire supérieure à la hauteur sur laquelle s'étendent les parties distales.  According to the invention, said anterior and posterior surfaces are divided into two parts each, namely: a proximal part having an inclination of three degrees with respect to the plane of symmetry of the femoral stem, so that the proximal parts of the faces anterior and posterior form an angle of six degrees between them, and - a distal portion having an inclination of one degree relative to the plane of symmetry of the femoral stem, so that the distal portions of the anterior and posterior surfaces form between them angle of two degrees; said proximal portions extending over a height of the medullary tail greater than the height on which the distal portions extend.

Cette forme spécifique permet d'assurer une bonne assise de la zone métaphysaire de la queue médullaire contre l'os, selon un appui réparti et sur une large surface, tout en limitant l'appui de cette queue au niveau de la zone moyenne du fémur, c'est-à-dire au niveau de la zone intermédiaire entre les parties métaphysaires et diaphysaires de l'os.  This specific shape makes it possible to ensure a good base of the metaphyseal zone of the medullary tail against the bone, according to a distributed support and over a large surface, while limiting the support of this tail at the level of the average zone of the femur , that is to say at the level of the intermediate zone between the metaphyseal and diaphyseal parts of the bone.

La hauteur sur laquelle s'étendent lesdites parties proximales est d'au moins 60 mm à partir de la face supérieure de la tige fémorale, et de préférence égale à 68,5 mm.  The height over which said proximal portions extend is at least 60 mm from the upper face of the femoral stem, and preferably equal to 68.5 mm.

La tige fémorale selon l'invention peut être adaptée à une implantation avec ciment, auquel cas lesdites faces antérieure et postérieure sont lisses.  The femoral stem according to the invention can be adapted to cement implantation, in which case said anterior and posterior surfaces are smooth.

Cette tige peut également être adaptée à une implantation sans ciment, auquel cas la tige présente de préférence des rainures longitudinales parallèles à l'axe longitudinal de la queue médullaire.  This rod can also be adapted to implantation without cement, in which case the rod preferably has longitudinal grooves parallel to the longitudinal axis of the medullary tail.

Ces rainures permettent d'augmenter la surface de contact entre l'os et la tige fémorale.  These grooves increase the contact area between the bone and the femoral stem.

De préférence, les rainures sont non débouchantes au niveau de la face supérieure de la queue médullaire.  Preferably, the grooves are non-emergent at the upper face of the medullary tail.

De préférence, ces rainures ont des extrémités qui se raccordent aux faces de la tige fémorale par des parties arrondies de grands rayons.  Preferably, these grooves have ends that connect to the faces of the femoral stem by rounded portions of large radii.

De préférence, sur chacune des faces antérieure et postérieure de la tige fémorale, une des rainures est située au niveau de la plus grande longueur de la queue médullaire.  Preferably, on each of the anterior and posterior faces of the femoral stem, one of the grooves is located at the level of the greatest length of the medullary tail.

Cette rainure s'étend de préférence sur l'ensemble des parties proximales desdites faces antérieure et postérieure jusqu'au niveau de la zone proximale des parties distales de ces faces antérieure et postérieure.  This groove preferably extends over all the proximal portions of said anterior and posterior faces to the level of the proximal zone of the distal portions of these anterior and posterior faces.

Selon une forme de réalisation préférée de l'invention, la queue médullaire comprend, outre ladite rainure située au niveau de la plus grande longueur de la queue médullaire, une rainure immédiatement adjacente à cette première rainure, située sur le côté externe de la queue médullaire par rapport à cette première rainure, et au moins trois rainures immédiatement adjacentes les unes des autres et adjacentes à ladite première rainure, situées sur le côté interne de la queue médullaire par rapport à cette première rainure.  According to a preferred embodiment of the invention, the medullary tail comprises, in addition to said groove situated at the level of the greatest length of the medullary tail, a groove immediately adjacent to this first groove, situated on the external side of the medullary tail. relative to this first groove, and at least three grooves immediately adjacent to each other and adjacent to said first groove, located on the inner side of the medullary tail with respect to this first groove.

Le col de la tige fémorale selon l'invention peut être latéralisé, c'està-dire avoir un axe légèrement translaté en direction du côté interne de la tige fémorale, et/ou avoir une longueur augmentée.  The neck of the femoral stem according to the invention can be lateralized, that is to say have a slightly translated axis in the direction of the inner side of the femoral stem, and / or have an increased length.

L'invention sera bien comprise, et d'autres caractéristiques et avantages de celle-ci apparaîtront, en référence au dessin schématique annexé, représentant, à titre d'exemples non limitatifs, plusieurs formes de réalisation possibles de la tige fémorale qu'elle concerne.  The invention will be better understood, and other features and advantages thereof will become apparent, with reference to the appended diagrammatic drawing, showing, by way of nonlimiting examples, several possible embodiments of the femoral stem that it concerns. .

La figure 1 en est une vue en perspective selon une première forme de 15 réalisation; les figures 2 à 4 en sont des vues respectives dans le plan frontal, dans le plan sagittal et de dessus; les figures 5 à 8 sont des vues respectivement en perspective, dans le plan frontal, dans le plan sagittal et de dessus d'une tige fémorale selon une 20 deuxième forme de réalisation; et les figures 9 et 10 sont des vues dans le plan frontal de deux tiges fémorales similaires à celles représentées respectivement sur les figures 1 à 4 et sur les figures 5 à 8, mais présentant des cols latéralisés.  Figure 1 is a perspective view according to a first embodiment; Figures 2 to 4 are respective views in the frontal plane, in the sagittal plane and from above; Figures 5 to 8 are respectively perspective, in the frontal plane, in the sagittal plane and from above of a femoral stem in a second embodiment; and Figures 9 and 10 are views in the frontal plane of two femoral stems similar to those respectively shown in Figures 1 to 4 and Figures 5-8, but having lateralized necks.

Par simplification, les parties ou éléments d'une forme de réalisation qui se retrouvent de manière identique ou similaire dans une autre forme de réalisation seront identifiés par les mêmes références numériques et ne seront pas à nouveau décrits.  For simplicity, parts or elements of an embodiment that are identical or similar in another embodiment will be identified by the same reference numerals and will not be described again.

Les figures 1 à 4 représentent sous différents angles une tige fémorale 1 de prothèse de hanche.  Figures 1 to 4 show at different angles a femoral stem 1 hip prosthesis.

Comme cela est bien connu, cette tige fémorale 1 comprend une queue médullaire effilée 2, destinée à être engagée dans le canal médullaire du fémur, un col 3 faisant saillie à l'extérieur de l'os lorsque la tige 1 est mise en place, et une tête sphérique (non représentée), destinée à être engagée sur l'extrémité du col. La tête sphérique vient coopérer avec une cavité correspondante que comprend un implant cotyloïdien fixé au bassin.  As is well known, this femoral stem 1 comprises a tapered medullary tail 2 intended to be engaged in the medullary canal of the femur, a neck 3 protruding outside the bone when the rod 1 is put in place, and a spherical head (not shown), intended to be engaged on the end of the neck. The spherical head cooperates with a corresponding cavity that includes an acetabular implant attached to the pelvis.

Pour permettre le montage de cette tête sphérique, le col présente une extrémité 4 de forme conique à faible pente, sur laquelle vient s'emmancher étroitement la tête sphérique, cette dernière comprenant une cavité de forme conique complémentaire.  To allow the mounting of this spherical head, the neck has an end 4 of conical shape with a low slope, on which tightly fits the spherical head, the latter comprising a cavity of complementary conical shape.

Ainsi que cela apparaît plus particulièrement sur la figure 3, la queue médullaire 2 présente des faces antérieure 5 et postérieure 6 légèrement inclinées par rapport au plan de symétrie de la tige fémorale 1, ces faces 5, 6 s'éloignant l'une de l'autre depuis la partie distale 7 de la tige fémorale 1 vers la partie proximale 8 de celle-ci.  As appears more particularly in FIG. 3, the medullary tail 2 has front and rear faces 6 slightly inclined with respect to the plane of symmetry of the femoral stem 1, these faces 5, 6 moving away from one another. another from the distal portion 7 of the femoral stem 1 to the proximal portion 8 thereof.

Ces faces antérieure et postérieure 5, 6 sont lisses s'agissant de la tige fémorale 1 représentée sur les figures 1 à 4, cette tige 1 étant adaptée à une implantation avec ciment.  These anterior and posterior surfaces 5, 6 are smooth with respect to the femoral stem 1 shown in Figures 1 to 4, this rod 1 being adapted to implantation with cement.

II apparaît sur la figure 3 que lesdites faces antérieure et postérieure 5, 6 se divisent chacune en deux parties, à savoir: - des parties proximales 5a, 6a présentant des inclinaisons de 3 degrés par rapport au plan de symétrie de la tige fémorale 1, de sorte que ces parties proximales 5a, 6a forment entre elles un angle de six degrés, et -des parties distales 5b, 6b présentant des inclinaisons d'un degré par rapport audit plan de symétrie, de sorte que ces parties distales 5b, 6b forment entre elles un angle de deux degrés.  It appears in FIG. 3 that said anterior and posterior surfaces 5, 6 are each divided into two parts, namely: proximal portions 5a, 6a having inclinations of 3 degrees with respect to the plane of symmetry of the femoral stem 1, so that these proximal portions 5a, 6a form between them an angle of six degrees, and -dalal portions 5b, 6b having inclinations of one degree relative to said plane of symmetry, so that these distal portions 5b, 6b form between them an angle of two degrees.

Les parties proximales 5a, 6a s'étendent sur une hauteur de la queue médullaire 2 supérieure à la hauteur sur laquelle s'étendent les zones distales 5b, 6b, cette hauteur étant, dans l'exemple représenté, de 68,5 mm à partir de la face supérieure 10 de la tige 1.  The proximal portions 5a, 6a extend over a height of the medullary tail 2 greater than the height over which the distal zones 5b, 6b extend, this height being, in the example shown, 68.5 mm from of the upper face 10 of the rod 1.

Les figures 5 à 8 représentent une tige fémorale 1 très similaire à celle qui vient d'être décrite, présentant en particulier des faces antérieure et postérieure 5, 6 de mêmes inclinaisons que celle de la tige fémorale montrée sur les figures 1 à 4.  Figures 5 to 8 show a femoral stem 1 very similar to that just described, having in particular anterior and posterior faces 5, 6 of the same inclinations as that of the femoral stem shown in Figures 1 to 4.

Dans ce cas, la tige 1 est adaptée à une implantation sans ciment.  In this case, the rod 1 is suitable for implantation without cement.

Elle présente cinq rainures longitudinales 11 parallèles à l'axe longitudinal de la queue médullaire 2, dont une est située au niveau de la plus grande longueur de la queue médullaire 2, dont une autre est située de manière immédiatement adjacente à cette première rainure, sur le côté externe de la queue médullaire 2, et dont les trois autres sont immédiatement adjacentes les unes des autres et adjacentes à ladite première rainure, et sont situées sur le côté interne de la queue médullaire par rapport à cette première rainure.  It has five longitudinal grooves 11 parallel to the longitudinal axis of the medullary tail 2, one of which is situated at the level of the greatest length of the medullary tail 2, another of which is located immediately adjacent to this first groove, on the outer side of the medullary tail 2, and the other three are immediately adjacent to each other and adjacent to said first groove, and are located on the inner side of the medullary tail with respect to this first groove.

Lesdites premières rainures 11 s'étendent sur l'ensemble des parties proximales 5a, 6a desdites faces antérieure et postérieure jusqu'au niveau de la zone proximale des parties distales 5b, 6b de ces faces antérieure et postérieure.  Said first grooves 11 extend over all of the proximal portions 5a, 6a of said anterior and posterior faces to the level of the proximal zone of the distal portions 5b, 6b of these anterior and posterior faces.

Les rainures 11 sont non débouchantes au niveau de la face supérieure 10 et ont des extrémités qui se raccordent aux faces de la tige 1 par des parties arrondies de grands rayons.  The grooves 11 are non-emergent at the upper face 10 and have ends that are connected to the faces of the rod 1 by rounded portions of large radii.

Le col 3 peut être standard, c'est-à-dire être positionné comme montré sur les figures 1 à 8, ou peut être latéralisé, c'est-à-dire avoir un axe légèrement translaté en direction du côté interne de la tige fémorale 1, et/ou avoir une longueur augmentée, ainsi que cela apparaît sur les figures 9 et 10. Ce col latéralisé peut être prévu tant pour une tige destinée à être implantée avec ciment (cf. figure 9) que pour une tige destinée à être implantée sans ciment (cf. figure 10).  The neck 3 may be standard, that is to say be positioned as shown in FIGS. 1 to 8, or may be lateralized, that is to say have a slightly translated axis towards the inner side of the stem. femoral 1, and / or have an increased length, as it appears in Figures 9 and 10. This lateralized collar can be provided both for a rod to be implanted with cement (Figure 9) that for a rod for be implanted without cement (see Figure 10).

Comme cela apparaît de ce qui précède, l'invention fournit une tige fémorale de prothèse de hanche présentant l'avantage déterminant d'avoir une bonne assise contre l'os au niveau de la zone métaphysaire de sa queue médullaire 2, selon un appui réparti et sur une large surface, tout en limitant l'appui de cette queue médullaire 2 au niveau de la zone moyenne du fémur, c'est-à-dire au niveau de la zone intermédiaire entre les parties métaphysaires et diaphysaires de l'os.  As appears from the foregoing, the invention provides a hip prosthesis femoral stem having the decisive advantage of having a good seat against the bone at the metaphyseal zone of its medullary tail 2, in a distributed support and over a large area, while limiting the support of this medullary tail 2 at the level of the average zone of the femur, that is to say at the intermediate zone between the metaphyseal and diaphyseal parts of the bone.

Il va de soi que l'invention n'est pas limitée à la forme de réalisation décrite ci-dessus à titre d'exemple mais qu'elle s'étend à toutes les formes de 30 réalisations couvertes par les revendications ci-annexées.  It goes without saying that the invention is not limited to the embodiment described above by way of example but that it extends to all forms of embodiments covered by the appended claims.

Claims (9)

REVENDICATIONS 1 Tige fémorale de prothèse de hanche, comprenant une queue médullaire effilée (2) présentant des faces antérieure et postérieure (5, 6) légèrement inclinées par rapport au plan de symétrie de la tige fémorale (1), ces faces (5, 6) s'éloignant l'une de l'autre depuis la partie distale (7) de la tige fémorale (1) vers la partie proximale (8) de celleci, caractérisée en ce que lesdites faces antérieure et postérieure (5, 6) se divisent chacune en deux parties (5a, 5b, 6a, 6b), à savoir: - une partie proximale (5a, 6a) présentant une inclinaison de trois degrés par rapport au plan de symétrie de la tige fémorale (1), de sorte que les parties proximales (5a, 6a) des faces antérieure et postérieure (5, 6) forment entre elles un angle de six degrés, et - une partie distale (5b, 6b) présentant une inclinaison d'un degré par rapport au plan de symétrie de la tige fémorale (1), de sorte que les parties distales (5b, 6b) des faces antérieure et postérieure (5, 6) forment entre elles un angle de deux degrés; - lesdites parties proximales (5a, 6a) s'étendant sur une hauteur de la queue médullaire (2) supérieure à la hauteur sur laquelle s'étendent les parties distales (5b, 6b).  1 Femoral hip prosthesis stem, comprising a tapered medullary tail (2) presenting anterior and posterior faces (5, 6) slightly inclined with respect to the plane of symmetry of the femoral stem (1), these faces (5, 6) moving away from each other from the distal portion (7) of the femoral stem (1) to the proximal portion (8) thereof, characterized in that said anterior and posterior surfaces (5, 6) divide each in two parts (5a, 5b, 6a, 6b), namely: - a proximal portion (5a, 6a) having an inclination of three degrees with respect to the plane of symmetry of the femoral stem (1), so that the proximal portions (5a, 6a) of the anterior and posterior faces (5, 6) form an angle of six degrees between them, and - a distal portion (5b, 6b) having an inclination of one degree with respect to the plane of symmetry of the femoral stem (1) so that the distal portions (5b, 6b) of the anterior and posterior surfaces (5, 6 ) form between them an angle of two degrees; - said proximal portions (5a, 6a) extending over a height of the medullary tail (2) greater than the height on which the distal portions (5b, 6b) extend. 2 Tige fémorale (1) selon la revendication 1, caractérisée en ce que la hauteur sur laquelle s'étendent lesdites parties proximales (5a, 6a) est d'au moins 60 mm à partir de la face supérieure (10) de la tige fémorale (1), et de préférence égal à 68,5 mm.  2 femoral stem (1) according to claim 1, characterized in that the height over which said proximal portions (5a, 6a) extend is at least 60 mm from the upper face (10) of the femoral stem (1), and preferably equal to 68.5 mm. 3 Tige fémorale (1) selon la revendication 1 ou la revendication 2, 25 caractérisée en ce que lesdites faces antérieure et postérieure (5, 6) sont lisses.  3 femoral stem (1) according to claim 1 or claim 2, characterized in that said anterior and posterior surfaces (5, 6) are smooth. 4 Tige fémorale (1) selon la revendication 1 ou la revendication 2, caractérisée en ce qu'elle présente des rainures (11) longitudinales parallèles à l'axe longitudinal de la queue médullaire (2).  4 femoral stem (1) according to claim 1 or claim 2, characterized in that it has longitudinal grooves (11) parallel to the longitudinal axis of the medullary tail (2). 5 Tige fémorale (1) selon la revendication 4, caractérisée en ce que les rainures (11) sont non débouchantes au niveau de la face supérieure (10) de la queue médullaire (2).  5 femoral stem (1) according to claim 4, characterized in that the grooves (11) are non-emergent at the upper face (10) of the medullary tail (2). 6 Tige fémorale (1) selon la revendication 4 ou la revendication 5, caractérisée en ce que les rainures (11) ont des extrémités qui se raccordent aux faces de la tige fémorale (1) par des parties arrondies de grands rayons.  6 femoral stem (1) according to claim 4 or claim 5, characterized in that the grooves (11) have ends which are connected to the faces of the femoral stem (1) by rounded portions of large radii. 7 Tige fémorale (1) selon l'une des revendications 4 à 6, caractérisée en ce que, sur chacune desdites faces antérieure et postérieure (5, 6), une des rainures (11) est située au niveau de la plus grande longueur de la queue médullaire (2).  7 femoral stem (1) according to one of claims 4 to 6, characterized in that, on each of said front and rear faces (5, 6), one of the grooves (11) is located at the level of the greatest length of the medullary tail (2). 8 Tige fémorale (1) selon la revendication 7, caractérisée en ce que ladite rainure (11) s'étend sur l'ensemble desdites parties proximales (5a, 6a) jusqu'au niveau de la zone proximale desdites parties distales (5b, 6b).  8 femoral stem (1) according to claim 7, characterized in that said groove (11) extends over all of said proximal portions (5a, 6a) to the level of the proximal zone of said distal portions (5b, 6b). ). 9 Tige fémorale (1) selon la revendication 7 ou la revendication 8, caractérisée en ce que la queue médullaire (2) comprend, outre ladite rainure (11) située au niveau de la plus grande longueur de la queue médullaire (2), une rainure (11) immédiatement adjacente à cette première rainure (11), située sur le côté externe de la queue médullaire (2) par rapport à cette première rainure (11), et au moins trois rainures (11) immédiatement adjacentes les unes des autres et adjacentes à ladite première rainure (11), situées sur le côté interne de la queue médullaire (2) par rapport à cette première rainure (11).  9 femoral stem (1) according to claim 7 or claim 8, characterized in that the medullary tail (2) comprises, in addition to said groove (11) located at the level of the greatest length of the medullary tail (2), a groove (11) immediately adjacent to this first groove (11), located on the outer side of the medullary tail (2) with respect to this first groove (11), and at least three grooves (11) immediately adjacent to each other and adjacent to said first groove (11), located on the inner side of the medullary tail (2) with respect to this first groove (11). Tige fémorale (1) selon l'une des revendications 1 à 9, caractérisée en ce que son col (3) est latéralisé, c'est-à-dire a un axe légèrement translaté en direction du côté interne de la tige fémorale (1), ou a une longueur augmentée, ou a à la fois un axe légèrement translaté en direction du côté interne de la tige fémorale (1) et une longueur augmentée.    Femoral stem (1) according to one of claims 1 to 9, characterized in that its neck (3) is lateralized, that is to say has a slightly translated axis towards the inner side of the femoral stem (1 ), or has an increased length, or has both a slightly translated axis towards the inner side of the femoral stem (1) and an increased length.
FR0506157A 2005-06-17 2005-06-17 FEMALE HIP PROSTHESIS ROD Expired - Fee Related FR2887137B1 (en)

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FR2639821A1 (en) * 1988-12-07 1990-06-08 Implants Instr Ch Fab Femoral element for a hip prosthesis
FR2649885A1 (en) * 1989-07-21 1991-01-25 Matteis Gerard De Hip prosthesis
FR2666984A3 (en) * 1990-09-21 1992-03-27 Impact Femoral shaft for a total hip prosthesis with primary fixation
FR2667785A1 (en) * 1990-10-16 1992-04-17 Procom Femoral element for hip prosthesis
FR2687306A1 (en) * 1992-02-13 1993-08-20 Prolig Sa Femoral implant for hip prostheses
FR2699398A1 (en) * 1992-12-21 1994-06-24 Seguier Bernard Femoral prosthesis with grooved proximal section and tapering neck
FR2701835A1 (en) * 1993-02-22 1994-09-02 Medinov Sa Femoral stem for hip prosthesis
FR2723307A1 (en) * 1994-08-04 1996-02-09 Dore Jean Louis Femoral shank for hip prosthesis
DE19811820A1 (en) * 1998-03-18 1999-11-04 Brehm Peter Hip joint shaft for a cement-free hip joint prosthesis
FR2784576A1 (en) * 1998-10-16 2000-04-21 Medical Solution Femoral prosthesis family has at least two sub-families with cervico- diaphysis angle varying from one sub-family to another
FR2793675A1 (en) * 1999-05-19 2000-11-24 Ile Octophoron Soc Civ Set of femoral rods used during orthopedic implants, such as for hip prosthesis, comprises cemented rod and non-cemented, with cemented rod having lateral hollowing-outs in its upper section

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2935893A1 (en) * 2008-09-17 2010-03-19 T O FEMALE HIP PROSTHESIS ROD
FR2935892A1 (en) * 2008-09-17 2010-03-19 T O FEMALE HIP PROSTHESIS ROD

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