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FR2634372A1 - Acetabular reconstruction module - Google Patents

Acetabular reconstruction module Download PDF

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Publication number
FR2634372A1
FR2634372A1 FR8810032A FR8810032A FR2634372A1 FR 2634372 A1 FR2634372 A1 FR 2634372A1 FR 8810032 A FR8810032 A FR 8810032A FR 8810032 A FR8810032 A FR 8810032A FR 2634372 A1 FR2634372 A1 FR 2634372A1
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France
Prior art keywords
cup
inwards
module
insert
hook
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.)
Withdrawn
Application number
FR8810032A
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French (fr)
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Individual
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Individual
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Priority to FR8810032A priority Critical patent/FR2634372A1/en
Publication of FR2634372A1 publication Critical patent/FR2634372A1/en
Withdrawn legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30767Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/32Joints for the hip
    • A61F2/34Acetabular cups
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/84Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86Pins or screws or threaded wires; nuts therefor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
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    • AHUMAN NECESSITIES
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    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
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    • A61F2/36Femoral heads ; Femoral endoprostheses
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    • A61F2/02Prostheses implantable into the body
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
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    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316The 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
    • A61F2002/30329Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30383Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by laterally inserting a protrusion, e.g. a rib into a complementarily-shaped groove
    • A61F2002/30403Longitudinally-oriented cooperating ribs and grooves on mating lateral surfaces of a mainly longitudinal connection
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    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316The 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
    • A61F2002/30535Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30537Special structural features of bone or joint prostheses not otherwise provided for adjustable
    • A61F2002/30538Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting angular orientation
    • A61F2002/3054Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting angular orientation about a connection axis or implantation axis for selecting any one of a plurality of radial orientations between two modular parts, e.g. Morse taper connections, at discrete positions, angular positions or continuous positions
    • AHUMAN NECESSITIES
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    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316The 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
    • A61F2002/30535Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30576Special structural features of bone or joint prostheses not otherwise provided for with extending fixation tabs
    • A61F2002/30578Special structural features of bone or joint prostheses not otherwise provided for with extending fixation tabs having apertures, e.g. for receiving fixation screws
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30667Features concerning an interaction with the environment or a particular use of the prosthesis
    • A61F2002/3069Revision endoprostheses
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30767Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30772Apertures or holes, e.g. of circular cross section
    • A61F2002/30784Plurality of holes
    • A61F2002/30785Plurality of holes parallel
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30767Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30772Apertures or holes, e.g. of circular cross section
    • A61F2002/30784Plurality of holes
    • A61F2002/30787Plurality of holes inclined obliquely with respect to each other
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/32Joints for the hip
    • A61F2/34Acetabular cups
    • A61F2002/3401Acetabular cups with radial apertures, e.g. radial bores for receiving fixation screws
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/32Joints for the hip
    • A61F2/34Acetabular cups
    • A61F2002/3401Acetabular cups with radial apertures, e.g. radial bores for receiving fixation screws
    • A61F2002/3403Polar aperture
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/32Joints for the hip
    • A61F2/36Femoral heads ; Femoral endoprostheses
    • A61F2/3609Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
    • A61F2002/3611Heads or epiphyseal parts of femur
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
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    • A61F2220/00Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
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    • A61F2310/00389The prosthesis being coated or covered with a particular material
    • A61F2310/00592Coating or prosthesis-covering structure made of ceramics or of ceramic-like compounds
    • A61F2310/00796Coating or prosthesis-covering structure made of a phosphorus-containing compound, e.g. hydroxy(l)apatite

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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

This module comprises a central metal part in the shape of a hemispherical cup 2, the outer face of which is intended to engage in the acetabulum and the lower face of which is fitted with means for fastening an insert used for articulating the head of the prosthesis, this cup being equipped on the one hand at its lower end with a hook 3 which, turned inwards, is intended to be engaged in the obturator canal of the iliac bone, and, on the other hand, in its upper part, with two tabs, the first 4 of which is inclined inwards and forwards with respect to the opening plane of the cup, and the second 5 of which is inclined inwards and backwards with respect to the opening plane of the cup, these two tabs being equipped with means for fastening onto the ilium. Application to repair of the acetabulum.

Description

"Module de reconstruction cotyloYdienne"
La présente invention a pour objet un module de reconstruction cotyloidienne.
"Cotyloid reconstruction module"
The present invention relates to a cotyloid reconstruction module.

Il est maintenant fréquent de procéder à l'implantation d'une prothèse, dans le cas d'une détérioration de la tête du fémur ou de la cavité cotyloidienne à l'intérieur de laquelle est montée avec articulation ladite tête. Une prothèse comprend un insert en matière synthétique fixé généralement par scellement à l'intérieur de la cavité, après préparation de celle-ci, et servant à l'articulation de la tête de la prothèse. It is now common to proceed with the implantation of a prosthesis, in the case of a deterioration of the head of the femur or of the acetabular cavity inside which is mounted with articulation said head. A prosthesis comprises an insert of synthetic material generally fixed by sealing inside the cavity, after preparation of the latter, and serving for the articulation of the head of the prosthesis.

Compte tenu du grand nombre de prothèses installées, parfois depuis longtemps, il n'est pas rare d'assister à un descellement de l'insert, éventuellement accompagné d'une protrusion de celui-ci. Given the large number of prostheses installed, sometimes for a long time, it is not uncommon to witness a loosening of the insert, possibly accompanied by a protrusion thereof.

Un descellement cotyloldien simple peut être repris, en effectuant un scellement d'un insert de taille plus importante. A simple acetabular loosening can be resumed, by sealing a larger insert.

Dans le cas d'un descellement cotyloldien complexe, avec amenuisement ou disparition des appuis osseux, le scellement d'un nouvel insert est d'une efficacité très médiocre du fait de l'absence d'appuis osseux suffisants. In the case of a complex acetabular loosening, with reduction or disappearance of the bone supports, the sealing of a new insert is of very poor efficiency due to the absence of sufficient bone supports.

Il convient alors d'essayer de reconstituer l'anatomie originelle en procédant à des greffes osseuses, sur lesquelles vient prendre appui l'insert ians lequel est articulée la tête de la prothèse. Il est connu d'interposer entre l'insert et les greffes osseuses un élément support de l'insert en forme d'anneau ou de grille. Toutefois, les éléments support connus à ce jour sont difficiles à fixer, et sont d'une efficacité très médiocre. It is then advisable to try to reconstitute the original anatomy by proceeding with bone grafts, on which the insert comes in which the head of the prosthesis is articulated. It is known to interpose between the insert and the bone grafts a support element for the insert in the form of a ring or grid. However, the support elements known to date are difficult to fix, and are of very poor efficiency.

La présente invention vise à remédier à ces inconvénients. The present invention aims to remedy these drawbacks.

A cet effet, le module qu'elle concerne comprend une partie centrale métallique en forme de cupule hémisphérique, dont la face extérieure est destinée à venir prendre appui dans la cavité cotyloldienne et dont la face intérieure est équipée de moyens de fixation d'un insert servant à l'articulation de la tête de la prothèse, cette cupule étant équipée d'une part à son extrémité inférieure d'un crochet qui, tourné vers l'intérieur, est destiné à être engagé dans le trou obturateur de l'os iliaque, et d'autre part dans sa partie supérieure de deux pattes, dont la première est inclinée vers l'intérieur et vers l'avant par rapport au plan de l'ouverture de la cupule et jDnt la seconde est inclinée vers l'intérieur et vers l'arrière par rapport au plan de l'ouverture de la cupule, ces deux pattes étant équipées de moyens de fixation sur l'aile iliaque.  To this end, the module it relates to includes a central metallic part in the shape of a hemispherical cup, the external face of which is intended to come to bear in the acetabular cavity and the internal face of which is fitted with means for fixing an insert. used to articulate the head of the prosthesis, this cup being equipped on the one hand at its lower end with a hook which, turned inwards, is intended to be engaged in the obturator hole of the iliac bone , and on the other hand in its upper part of two legs, the first of which is inclined inwards and forwards with respect to the plane of the opening of the cup and the second is inclined inwards and rearwardly relative to the plane of the opening of the cup, these two legs being equipped with fixing means on the iliac wing.

La structure de ce module lui permet d'être fixé sans ciment, à distance de la cavité cotyloidienne, sur des zones qui ne sont pas détériorées. The structure of this module allows it to be fixed without cement, away from the acetabulum, on areas that are not deteriorated.

En effet, l'expérience prouve que ni le trou obturateur, ni l'aile iliaque ne sont atteints en cas de descellement d'une prothèse, la destruction concernant- généralement le fond de la cavité cotyloldienne. En outre, la face extérieure de la cupule prend appui sur des greffons osseux, et permet en quelque sorte le moulage de ceux-ci, ce qui favorise une reconstitution osseuse du paléo-cotyle primitif.Indeed, experience proves that neither the obturator hole nor the iliac wing are affected in the event of loosening of a prosthesis, the destruction generally concerning the bottom of the acetabulum. In addition, the outer face of the cup is supported on bone grafts, and in a way allows the molding of these, which promotes bone reconstruction of the primitive palaeoclet.

De la sorte, dans un premier temps la reprise des efforts de la prothèse s'effectue uniquement sur les points de fixation du module, c'est-à-dire sur le crochet et sur les pattes, puis, au fur et à mesure de la reconstitution osseuse, la cupule du module prend un appui de plus en plus ferme contre la paroi osseuse reconstituée à partir du développement des greffons. In this way, initially the resumption of the efforts of the prosthesis is carried out only on the attachment points of the module, that is to say on the hook and on the legs, then, as and when bone reconstruction, the cup of the module takes an increasingly firm support against the bone wall reconstituted from the development of grafts.

Avantageusement, la face extérieure de la cupule est recouverte d'hydroxyapatite de calcium pour permettre une liaison de qualité avec les greffons, sans interposition fibreuse, avec ostéogénèse de pénétration. Advantageously, the external face of the cup is covered with calcium hydroxyapatite to allow a quality bond with the grafts, without fibrous interposition, with penetration osteogenesis.

Selon une forme d'exécution de ce module, la longueur du crochet est de l'ordre de 25 mm, la longueur de la patte antéro-supérieure est de l'ordre de 50 mm, et la longueur de la patte postéro-supérieure est de l'ordre de 30 mm. According to one embodiment of this module, the length of the hook is of the order of 25 mm, the length of the antero-superior leg is of the order of 50 mm, and the length of the postero-superior leg is of the order of 30 mm.

Conformément à une autre caractéristique de ce module, l'ouverture de la cupule étant considérée dans un plan vertical, le crochet est incliné d'un angle de l'ordre de 300 vers l'intérieur, la patte antéro-supérieure est inclinée d'environ 300 vers l'intérieur et 400 vers l'avant, et la patte postéro-supérieure est inclinée d'environ 900 vers l'intérieur et 200 vers l'arrière. In accordance with another characteristic of this module, the opening of the cup being considered in a vertical plane, the hook is inclined at an angle of the order of 300 inwards, the antero-superior tab is inclined by about 300 inward and 400 forward, and the postero-upper leg is tilted about 900 inward and 200 backward.

Compte tenu des angulations spécifiques de ces crochets et pattes, il convient de prévoir un module pour le montage à droite et un module pour le montage à gauche. Les angulations qui ont été indiquées ci-dessus sont susceptibles de légères modifications réalisées par le praticien lors de l'implantation de la prothèse pour permettre un parfait contact entre les pattes et l'aile iliaque, la fixation des pattes étant réalisée de façon simple et avantageuse par vissage à travers des trous ménagés lors de la construction. Given the specific angulations of these hooks and lugs, it is necessary to provide a module for mounting on the right and a module for mounting on the left. The angulations which have been indicated above are liable to slight modifications carried out by the practitioner during the implantation of the prosthesis to allow perfect contact between the legs and the iliac wing, the fixing of the legs being carried out in a simple manner and advantageous by screwing through holes made during construction.

Avantageusement, les moyens de fixation de l'insert dans la cupule du module sont constitués par des moyens à encliquetage, le bord de la cupule délimitant en outre plusieurs évidements ménagés selon une répartition angulaire régulière tandis que l'insert comporte, faisant saillie de sa périphérie des crans complémentaires desdits évidements, dont le nombre et la répartition sont des sous-multiples de ceux des évidements de la cupule. Advantageously, the means for fixing the insert in the cup of the module are constituted by snap-fastening means, the edge of the cup further delimiting several recesses formed in a regular angular distribution while the insert comprises, projecting from its periphery of the complementary notches of said recesses, the number and distribution of which are submultiples of those of the recesses in the cup.

Il est ainsi possible de fixer un insert dans plusieurs positions angulaires prédéterminées, ce qui permet de réaliser un réglage angulaire de la prothèse. Il est également à noter que la cupule d'un module peut être équipée d'inserts en polyéthylène dont l'ouverture est parallèle au plan d'ouverture de la cupule, ou dont l'ouverture est inclinée par rapport à ce plan. Il est ainsi possible de parfaire la bonne orientation de la cupule, tant en antéversion qu'en inclinaison. It is thus possible to fix an insert in several predetermined angular positions, which allows angular adjustment of the prosthesis. It should also be noted that the cup of a module can be fitted with polyethylene inserts, the opening of which is parallel to the opening plane of the cup, or the opening of which is inclined relative to this plane. It is thus possible to perfect the correct orientation of the cup, both in anteversion and in inclination.

De toute façon, l'invention sera bien comprise à l'aide de la description qui suit, en référence au dessin schématique annexé représentant à titre d'exemple non limitatif, une forme d'exécution de ce module. In any case, the invention will be clearly understood with the aid of the description which follows, with reference to the appended schematic drawing representing by way of nonlimiting example, an embodiment of this module.

Figure I est une vue en perspective d'un module en position montée
Figure 2 en est une vue de face et à échelle agrandie
Figure 3 en est une vue en coupe selon la ligne 111-111 de figure 2 après montage de l'insert
Figure 4 est une vue très schématique du module en position équipée de la tête de la prothèse.
Figure I is a perspective view of a module in the mounted position
Figure 2 is a front view and on an enlarged scale
Figure 3 is a sectional view along line 111-111 of Figure 2 after mounting the insert
Figure 4 is a very schematic view of the module in position equipped with the head of the prosthesis.

Le module selon l'invention comprend, comme montré au dessin, une cupule 2 métallique de forme générale hémisphérique, dont l'extrémité inférieure est équipée d'un crochet 3 et dont la partie supérieure est équipée de deux pattes 4 et 5. The module according to the invention comprises, as shown in the drawing, a metal cup 2 of generally hemispherical shape, the lower end of which is fitted with a hook 3 and the upper part of which is fitted with two tabs 4 and 5.

Comme cela ressort notamment des figures 2 et 3, si le plan de l'ouverture de la cupule 2 est considéré vertical, le crochet 3 est incliné vers le bas et vers l'arrière d'un angle de l'ordre de 300 et possède une longueur de l'ordre de 20 mm. La patte 4 ou patte antéro-supérieure possède une longueur de 50 mm, est inclinée de 300 vers l'intérieur et de 40C vers l'avant. As is apparent in particular from FIGS. 2 and 3, if the plane of the opening of the cup 2 is considered vertical, the hook 3 is inclined downwards and backwards by an angle of the order of 300 and has a length of the order of 20 mm. The leg 4 or antero-superior leg has a length of 50 mm, is inclined 300 inwards and 40C forwards.

La patte 5 ou patte postéro-supérieure possède une longueur de 30 mm et est i lclinée d'environ 900 vers l'intérieur et 200 vers l'arrière. Le crochet 3 et les pattes 4 et 5 comportent des trous 6 permettant leur fixation à l'aide de vis 7. The leg 5 or postero-superior leg has a length of 30 mm and is inclined about 900 inwards and 200 backwards. The hook 3 and the tabs 4 and 5 have holes 6 allowing them to be fixed using screws 7.

Comme montré à la figure I qui représente le module en position montée, le crochet 3 est engagé dans le trou obturateur 17 de l'os iliaque, tandis que les pattes 4 et 6 viennent prendre appui sur l'aile iliaque 8 avec fixation par des vis 7, le fond de la cupule 2 revêtu d'hydroxy-apatite de calcium 11 prenant appui contre des greffons osseux 9 préalablement placés dans le fond de la cavité cotyloidienne. La cupule 2 comporte au moins une ouverture 10 servant au praticien à vérifier le bon appui de la face extérieure de la cupule contre les greffons osseux. As shown in Figure I which represents the module in the mounted position, the hook 3 is engaged in the obturator hole 17 of the iliac bone, while the legs 4 and 6 come to bear on the iliac wing 8 with fixing by screw 7, the bottom of the cup 2 coated with calcium hydroxyapatite 11 bearing against bone grafts 9 previously placed in the bottom of the acetabular cavity. The cup 2 has at least one opening 10 used by the practitioner to check that the outside face of the cup is properly pressed against the bone grafts.

Comme montré aux figures 3 et 4, la face intérieure de la cupule sert au logement d'un insert 12 par exemple en matière synthétique comportant une cavité centrale hémisphérique servant à l'articulation de la tête prothétique 13, qui est elle-même prolongée par la tige 14. il ressort de la figure 2, que le bord délimitant la cavité de la cupule 2 comporte huit évidements 15, à 450 les uns des autres. Pour sa part, l'insert 12 comporte quatre crans 16 complémentaires des évidements 15 disposés à 900 les uns des autres, permettant différents positionnements de l'insert à l'intérieur de la cupule. As shown in FIGS. 3 and 4, the inner face of the cup serves to accommodate an insert 12, for example made of synthetic material, comprising a central hemispherical cavity serving to articulate the prosthetic head 13, which is itself extended by the rod 14. it emerges from FIG. 2, that the edge delimiting the cavity of the cup 2 has eight recesses 15, 450 from one another. For its part, the insert 12 comprises four notches 16 complementary to the recesses 15 arranged 900 from each other, allowing different positions of the insert inside the cup.

Comme il ressort du dessin, la fixation de ce module est réalisée sur des zones osseuses solides, sans aucune nécessité de fixation à l'aide de ciment dans le fond de la cavité cotyloldienne.  As is apparent from the drawing, the fixing of this module is carried out on solid bone areas, without any need for fixing using cement in the bottom of the acetabular cavity.

Ce module est réalisé sous différentes tailles, avec une latéralisation, et peut être livré avec des accessoires permettant la recherche de la meilleure taille et de la meilleure orientation. This module is produced in different sizes, with lateralization, and can be delivered with accessories allowing the search for the best size and the best orientation.

Ce module de reconstruction apporte une réponse# d'excellente qualité aux destructions osseuses importantes du bassin, dans lesquelles les solutions conventionnelles de cimentage d'inserts sont impossibles. Ce module présente l'avantage d'assurer une restauration du capital osseux noble, ce qui n'est pas possible avec les éléments support actuellement utilisés dont la fixation par ciment ou sur les greffons est très souvent mal adaptée au problème à résoudre.  This reconstruction module provides an excellent response # to major bone destruction in the pelvis, in which conventional solutions for cementing inserts are impossible. This module has the advantage of ensuring a restoration of the noble bone capital, which is not possible with the support elements currently used whose fixing by cement or on the grafts is very often ill-suited to the problem to be solved.

Claims (5)

REVENDICATIONS I. Module de reconstruction cotyloidienne, caractérisé en ce qu'il comprend une partie centrale métallique en forme de cupule hémisphérique (2), dont la face extérieure est destinée à venir prendre appui dans la cavité cotyloïdienne et dont la face intérieure est équipée de moyens de fixation d'un insert servant à l'articulation de la tête de la prothèse, cette cupule étant équipée d'une part à son extrémité inférieure d'un crochet (3) qui, tourné vers l'intérieur, est destiné à être engagé dans le trou obturateur de l'os iliaque, et d'autre part dans sa partie supérieure de deux pattes, dont la première (4) est inclinée vers l'intérieur et vers l'avant par rapport au plan de l'ouverture de la cupule et dont la seconde (5) est inclinée vers l'intérieur et vers l'arrière par rapport au plan de l'ouverture de la cupule, ces deux pattes étant équipées de moyens de fixation sur l'aile iliaque. I. Cotyloid reconstruction module, characterized in that it comprises a central metallic part in the shape of a hemispherical cup (2), the external face of which is intended to come to bear in the acetabular cavity and the internal face of which is equipped with means for fixing an insert used to articulate the head of the prosthesis, this cup being equipped on the one hand at its lower end with a hook (3) which, turned inwards, is intended to be engaged in the obturator hole of the iliac bone, and on the other hand in its upper part of two legs, the first (4) of which is inclined inward and forward relative to the plane of the opening of the cup and the second (5) of which is inclined inward and backward relative to the plane of the opening of the cup, these two legs being fitted with means of attachment to the iliac wing. 2. Module selon la revendication I, caractérisé en ce que la face extérieure de la cupule (2) est recouverte d'hydroxyapatite de calcium. 2. Module according to claim I, characterized in that the outer face of the cup (2) is covered with calcium hydroxyapatite. 3. Module selon l'une quelconque des revendications I et 2, caractérisé en ce que la longueur du crochet (3) est de l'ordre de 2G mm, la longueur de la patte antéro-supérieure (4) est de l'ordre de 50 mm, et la longueur de la patte postéro-supérieure (5) est de l'ordre de 30 mm. 3. Module according to any one of claims I and 2, characterized in that the length of the hook (3) is of the order of 2G mm, the length of the antero-superior tab (4) is of the order of 50 mm, and the length of the postero-upper leg (5) is of the order of 30 mm. 4. Module selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'ouverture de la cupule (2) étant considérée dans un plan vertical, le crochet (3) est incliné d'un angle de l'ordre de 30 vers l'intérieur, la patte antéro-supérieure (4) est inclinée d'environ 300 vers l'intérieur et 400 vers l'avant, et la patte postéro-supérieure (5) est inclinée d'environ 900 vers l'intérieur et 200 vers l'arrière. 4. Module according to any one of claims 1 to 3, characterized in that the opening of the cup (2) being considered in a vertical plane, the hook (3) is inclined at an angle of the order of 30 inwards, the antero-upper leg (4) is inclined by about 300 inwards and 400 in front, and the postero-upper leg (5) is inclined by about 900 inwards and 200 backwards. 5. Module selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les moyens de fixation de l'insert dans la cupule du module sont constitués par de smoyens à encliquetage, le bord de la cupule délimitant en outre plusieurs évidements (15) ménagés selon une répartition angulaire régulière tandis que l'insert (12) comporte, faisant saillie de sa périphérie des crans (16) complémentaires desdits évidements (15), dont le nombre et la répartition sont des sous-multiples de ceux des évidements de la cupule.  5. Module according to any one of claims 1 to 4, characterized in that the means for fixing the insert in the cup of the module consist of snap-in means, the edge of the cup further delimiting several recesses ( 15) arranged in a regular angular distribution while the insert (12) comprises, projecting from its periphery notches (16) complementary to said recesses (15), the number and distribution of which are sub-multiples of those of the recesses of the cup.
FR8810032A 1988-07-20 1988-07-20 Acetabular reconstruction module Withdrawn FR2634372A1 (en)

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Cited By (22)

* Cited by examiner, † Cited by third party
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FR2651995A1 (en) * 1989-09-15 1991-03-22 Aubaniac Jean Manuel Ring for acetabular implant
FR2660546A1 (en) * 1990-04-06 1991-10-11 Setiey Louis Module for acetabular reconstruction
FR2680674A1 (en) * 1991-09-04 1993-03-05 Materiel Chirurgical Ste Inter Cotyloid prosthesis with expandable cup
EP0532439A2 (en) * 1991-09-13 1993-03-17 Impact Acetabular cup for hip prosthesis
FR2686502A1 (en) * 1992-01-23 1993-07-30 Rech Fabrication Et Uncemented and unscrewed cup for total hip prosthesis
EP0605368A1 (en) * 1992-12-18 1994-07-06 ITALPRO S.p.A. Prosthesis cotyl cup element for reconstructing a hip acetabulum in a hip full recovery operation
FR2700686A1 (en) * 1993-01-22 1994-07-29 Voydeville Gilles Hip prosthesis acetabulum
FR2710836A1 (en) * 1993-10-06 1995-04-14 Rambert Andre Acetabular element of a total hip prosthesis which can be implanted without cement
US5425778A (en) * 1992-10-07 1995-06-20 Oscobal Ag Acetabular socket supporting ring
US5507819A (en) * 1994-11-02 1996-04-16 Wolf; Eugene M. Apparatus and method for stabilizing a humeral head in a shoulder
FR2785522A1 (en) * 1998-11-09 2000-05-12 Nort On Hip joint prosthesis has socket cup and metallic ring with angularly adjustable liner insert
FR2802819A1 (en) * 1999-12-23 2001-06-29 Hubert Hellak Cotyloid prosthesis made entirely from ceramic with calcium phosphate coating
US6306173B1 (en) * 1997-07-30 2001-10-23 Medidea, Llc Modular acetabular reconstruction plate
US6416553B1 (en) 1999-03-31 2002-07-09 Biomet, Inc. Method and apparatus for providing a modular acetabular prosthesis
US6620200B1 (en) * 1999-09-28 2003-09-16 Depuy France Acetabular implant for hip prosthesis
GB2406056A (en) * 2003-09-17 2005-03-23 Corin Ltd Bone tapping kit, fixation member and prosthetic cup
FR2860424A1 (en) * 2003-10-03 2005-04-08 Rech S Et De Fabrication S E R Reconstruction acetabular cup, has elongated legs fixed on cup set back from opening plane of cylindrical part, and bracket and/or secondary legs fixed on cylindrical part in order to level opening plane of cylindrical part
CN102283702A (en) * 2011-08-11 2011-12-21 张英泽 Acetabulum reconstruction plate for effectively fixing acetabular posterior wall fracture
CN102614035A (en) * 2012-04-26 2012-08-01 上海晟实医疗器械科技有限公司 Semi-pelvic prosthesis
CN103179922B (en) * 2010-08-26 2016-08-17 史密夫和内修有限公司 Implant, surgical method and the apparatus of operation is clashed into for femur acetabular bone
CN106175995A (en) * 2016-08-17 2016-12-07 优适医疗科技(苏州)有限公司 A kind of novel hip prosthesis
CN107280813A (en) * 2017-07-18 2017-10-24 优适医疗科技(苏州)有限公司 Acetabular component prosthese

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Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2651995A1 (en) * 1989-09-15 1991-03-22 Aubaniac Jean Manuel Ring for acetabular implant
FR2660546A1 (en) * 1990-04-06 1991-10-11 Setiey Louis Module for acetabular reconstruction
FR2680674A1 (en) * 1991-09-04 1993-03-05 Materiel Chirurgical Ste Inter Cotyloid prosthesis with expandable cup
EP0532439A2 (en) * 1991-09-13 1993-03-17 Impact Acetabular cup for hip prosthesis
EP0532439A3 (en) * 1991-09-13 1993-04-28 Impact Acetabular cup for hip prosthesis
FR2686502A1 (en) * 1992-01-23 1993-07-30 Rech Fabrication Et Uncemented and unscrewed cup for total hip prosthesis
US5425778A (en) * 1992-10-07 1995-06-20 Oscobal Ag Acetabular socket supporting ring
EP0605368A1 (en) * 1992-12-18 1994-07-06 ITALPRO S.p.A. Prosthesis cotyl cup element for reconstructing a hip acetabulum in a hip full recovery operation
FR2700686A1 (en) * 1993-01-22 1994-07-29 Voydeville Gilles Hip prosthesis acetabulum
FR2710836A1 (en) * 1993-10-06 1995-04-14 Rambert Andre Acetabular element of a total hip prosthesis which can be implanted without cement
US5507819A (en) * 1994-11-02 1996-04-16 Wolf; Eugene M. Apparatus and method for stabilizing a humeral head in a shoulder
US6306173B1 (en) * 1997-07-30 2001-10-23 Medidea, Llc Modular acetabular reconstruction plate
FR2785522A1 (en) * 1998-11-09 2000-05-12 Nort On Hip joint prosthesis has socket cup and metallic ring with angularly adjustable liner insert
US6416553B1 (en) 1999-03-31 2002-07-09 Biomet, Inc. Method and apparatus for providing a modular acetabular prosthesis
US6620200B1 (en) * 1999-09-28 2003-09-16 Depuy France Acetabular implant for hip prosthesis
FR2802819A1 (en) * 1999-12-23 2001-06-29 Hubert Hellak Cotyloid prosthesis made entirely from ceramic with calcium phosphate coating
GB2406056A (en) * 2003-09-17 2005-03-23 Corin Ltd Bone tapping kit, fixation member and prosthetic cup
GB2406056B (en) * 2003-09-17 2007-07-11 Corin Ltd Prosthetic cup
US7641656B2 (en) 2003-09-17 2010-01-05 Corin Limited Prosthetic cup
FR2860424A1 (en) * 2003-10-03 2005-04-08 Rech S Et De Fabrication S E R Reconstruction acetabular cup, has elongated legs fixed on cup set back from opening plane of cylindrical part, and bracket and/or secondary legs fixed on cylindrical part in order to level opening plane of cylindrical part
CN103179922B (en) * 2010-08-26 2016-08-17 史密夫和内修有限公司 Implant, surgical method and the apparatus of operation is clashed into for femur acetabular bone
CN102283702A (en) * 2011-08-11 2011-12-21 张英泽 Acetabulum reconstruction plate for effectively fixing acetabular posterior wall fracture
CN102283702B (en) * 2011-08-11 2012-12-26 张英泽 Acetabulum reconstruction plate for effectively fixing acetabular posterior wall fracture
CN102614035A (en) * 2012-04-26 2012-08-01 上海晟实医疗器械科技有限公司 Semi-pelvic prosthesis
CN106175995A (en) * 2016-08-17 2016-12-07 优适医疗科技(苏州)有限公司 A kind of novel hip prosthesis
CN107280813A (en) * 2017-07-18 2017-10-24 优适医疗科技(苏州)有限公司 Acetabular component prosthese

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