FR2825263A1 - Shoulder joint prosthesis has cap on humerus to engage socket with movement limiting stop surfaces - Google Patents

Shoulder joint prosthesis has cap on humerus to engage socket with movement limiting stop surfaces Download PDF

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Publication number
FR2825263A1
FR2825263A1 FR0107068A FR0107068A FR2825263A1 FR 2825263 A1 FR2825263 A1 FR 2825263A1 FR 0107068 A FR0107068 A FR 0107068A FR 0107068 A FR0107068 A FR 0107068A FR 2825263 A1 FR2825263 A1 FR 2825263A1
Authority
FR
France
Prior art keywords
base
characterized
shoulder
surface
movable platen
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
FR0107068A
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French (fr)
Inventor
Alain Leonard
Laurent Angibaud
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TECKNIMED
Original Assignee
TECKNIMED
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TECKNIMED filed Critical TECKNIMED
Priority to FR0107068A priority Critical patent/FR2825263A1/en
Publication of FR2825263A1 publication Critical patent/FR2825263A1/en
Application status is Pending legal-status Critical

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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
    • A61F2/40Joints for shoulders
    • 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
    • A61F2/40Joints for shoulders
    • A61F2/4081Glenoid components, e.g. cups
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • 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, setting implements or the like
    • 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
    • A61B17/86Threaded wires, pins or screws; Nuts therefor
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    • 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
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    • 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
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    • A61F2002/30329Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30331Connections 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
    • A61F2002/30362Connections 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 with possibility of relative movement between the protrusion and the recess
    • A61F2002/30369Limited lateral translation of the protrusion within a larger recess
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    • 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
    • A61F2002/3039Connections 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 with possibility of relative movement of the rib within the groove
    • A61F2002/30397Limited lateral translation of the rib within a larger groove
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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
    • A61F2002/30476Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
    • A61F2002/305Snap connection
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    • 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
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    • 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
    • A61F2/40Joints for shoulders
    • A61F2/4081Glenoid components, e.g. cups
    • A61F2002/4085Glenoid components, e.g. cups having a convex shape, e.g. hemispherical heads
    • 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
    • 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
    • A61F2220/0025Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • 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
    • 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
    • A61F2220/0025Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2220/0033Connections 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
    • 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
    • A61F2230/00Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0004Rounded shapes, e.g. with rounded corners
    • 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
    • A61F2230/00Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0017Angular shapes
    • A61F2230/0026Angular shapes trapezoidal
    • 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
    • A61F2230/00Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063Three-dimensional shapes
    • A61F2230/0067Three-dimensional shapes conical
    • 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
    • A61F2310/00Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005The prosthesis being constructed from a particular material
    • A61F2310/00011Metals or alloys
    • 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
    • A61F2310/00Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00389The prosthesis being coated or covered with a particular material
    • A61F2310/00395Coating or prosthesis-covering structure made of metals or of alloys

Abstract

The shoulder joint prosthesis has a base (20) anchored (22) to the shoulder and with an engagement surface (26) to receive the head of the humerus. The humerus carries a cap plate (24) and socket have engaging surfaces (28) to control the joint movement. The contact surfaces can be spherical (32,34).

Description

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PROTHESE DE GLENE D'EPAULE A PLATEAU MOBILE PROSTHETIC SHOULDER A MOBILE PLATFORM glenoid
La présente invention se rapporte à une prothèse d'épaule, et plus particulièrement à une prothèse de glène à plateau mobile susceptible d'être The present invention relates to a shoulder prosthesis, and more particularly to a glenoid prosthesis movable plate capable of being

Figure img00010001

fixée à la cavité glénoïdienne de l'omoplate et de recevoir la tête de l'humérus ou d'un implant huméral. attached to the glenoid cavity of the scapula and to receive the head of the humerus or a humeral implant.

L'épaule humaine est un ensemble d'articulations qui unissent le membre supérieur au squelette thoracique. The human shoulder is a set of joints joining the upper limb the thoracic skeleton. La partie essentielle de cet ensemble, l'articulation scapulo-humérale, relie la tête de l'humérus et la cavité glénoïde de l'omoplate. The essential part of this assembly, the shoulder joint, connects the head of the humerus and the glenoid cavity of the scapula.

La présente invention s'intéresse plus particulièrement au prothèse de glène de cette articulation. The present invention relates more particularly to the glenoid prosthesis of this joint.

Généralement, une prothèse de glène comprend un élément glénoïdien monobloc en polyéthylène, ancré à l'aide d'un ciment dans un espace préalablement préparé par résection osseuse dans l'omoplate au niveau de la cavité glénoïdienne naturelle défectueuse. Generally, a glenoid prosthesis comprising a one-piece glenoid element made of polyethylene, anchored by means of a cement into a previously prepared by bone resection space in the shoulder blade at the defective natural glenoid fossa.

On connaît également d'après les documents EP-776.636, FR- 2.683. Also known from EP-776 636 documents FR-2683. 142, FR-2.695. 142, FR-2695. 313 et EP-963.742 des prothèses de glène en deux parties, comprenant une embase fixée à l'omoplate et une pièce de contact fixe par rapport à l'embase, possédant une surface de glissement apte à recevoir la tête de l'humérus. 313 and EP-963 742 of glenoid prostheses in two parts, comprising a base fixed to the scapula and a fixed contact piece with respect to the base, having a sliding surface adapted to receive the head of the humerus.

Dans le cas du document EP-963.742, la pièce de contact peut se translater lors du montage par rapport à l'embase. In the case of EP-963 742, the contact part can be translated during assembly relative to the base. Toutefois, une fois en place, cette pièce est immobilisée par rapport à l'embase grâce à une However, once in place, this piece is moving relative to the base through

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protubérance bloquée dans un logement qui assure une liaison complète et fixe entre l'embase et la pièce de glissement. protuberance blocked in a housing which ensures complete and permanent bond between the base and the sliding piece.

Par ailleurs, le fait de concevoir une glène monobloc ou en deux parties immobiles l'une par rapport à l'autre permet de respecter au mieux l'anatomie et la physionomie de cette articulation. Moreover, the fact of designing a piece glenoid or two stationary members relative to the other allows to best comply with the anatomy and physiognomy of this joint.

La jonction os/prothèse étant une zone soumise à de fortes contraintes, le principal inconvénient de ces dispositifs réside dans la relative fragilité de leur ancrage, qui est accentuée notamment lorsque la prothèse n'est pas correctement implantée. Bone junction / prosthesis being an area subject to high stresses, the main disadvantage of these devices lies in the relative fragility of their anchor, which is particularly accentuated when the prosthesis is properly implanted. Or, il est indispensable que cette jonction soit la plus solide possible afin de permettre le mouvement de l'articulation et d'éviter les descellements. However, it is essential that this junction is the strongest possible in order to allow movement of the joint and prevent loosening.

Aussi, de nombreux documents se focalisent sur les moyens d'ancrage et proposent de nombreuses solutions afin d'assurer la pérennité de la liaison entre la prothèse et l'os. Also, many documents focus on the anchoring means and offer many solutions to ensure the continuity of the connection between the prosthesis and bone. Toutefois, malgré leur relative complexité, ces solutions ne donnent pas pleinement satisfaction en raison d'un pourcentage d'échec d'implantation relativement important, notamment lorsque l'implant n'est pas parfaitement placé. However, despite their relative complexity, these solutions do not fully satisfactory because of a relatively large percentage of implantation failure, especially when the implant is perfectly placed.

En effet, les efforts de cisaillement générés par la liaison gléno- humérale, c'est-à-dire l'action de la tête humérale sur l'implant glénoïdien, sont importants et tendent à déstabiliser l'implant glénoïdien dans le temps. Indeed, the shear forces generated by the bond humeral gléno-, that is to say the action of the humeral head on the glenoid implant are important and tend to destabilize the glenoid implant over time.

Aussi, pour réduire les efforts de cisaillement, les implants actuels présentent une surface d'appui avec un rayon de courbure nettement supérieur au rayon de courbure de la cavité glénoïdienne anatomique correspondant sensiblement au rayon de courbure de la tête de l'humérus. Also, to reduce shear forces, current implants have a supporting surface with a radius of curvature substantially greater than the radius of curvature of the anatomical glenoid cavity corresponding substantially to the radius of curvature of the head of the humerus.

Cependant, cette augmentation de rayon de courbure génère un contact quasi-ponctuel de la tête humérale sur la prothèse de glène en polyéthylène, entraînant une augmentation des contraintes de pression et de ce fait une usure accentuée dudit polyéthylène. However, this radius of curvature increase generates a quasi-punctiform contact of the humeral head on the glenoid prosthesis of polyethylene, resulting in compressive stresses increase and thereby a marked wear of said polyethylene.

Un autre inconvénient des prothèses de glène existantes réside dans le fait qu'une erreur d'implantation de la prothèse est difficilement rattrapable ultérieurement, voire impossible, ce qui contribue à augmenter le taux d'échec. Another drawback of existing glenoid prosthesis is the fact that an error of implantation of the prosthesis is difficult to catch up later, if not impossible, which helps to increase the failure rate.

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Aussi, la présente invention vise à pallier les inconvénients des prothèses de glène d'épaule existantes en proposant une nouvelle prothèse garantissant une implantation solide et fiable dans le temps et un fonctionnement de l'articulation de l'épaule correct et sans douleur, même en cas d'erreur d'implantation. Also, the present invention aims to overcome the drawbacks of existing shoulder glenoid prosthesis by proposing a new prosthesis guaranteeing a solid and reliable implementation in time and a joint function of the correct shoulder and pain, even if implantation error.

A cet effet, l'invention a pour objet une prothèse de glène d'épaule comprenant une embase liée à l'os par des moyens d'ancrage et un plateau présentant une surface d'appui et de logement d'une tête d'humérus, caractérisée en ce qu'elle comporte des moyens de liaison entre ladite embase et ledit plateau susceptibles d'autoriser un mouvement relatif entre ces deux éléments une fois en place, notamment lors d'un mouvement de l'articulation. To this end, the invention relates to a shoulder glenoid prosthesis comprising a base connected to the bones by anchoring means and a tray having a support surface and housing a humerus head characterized in that it comprises connection means between said base and said plate may allow relative movement between these two elements when in place, in particular upon movement of the joint.

De préférence, les moyens de liaison comprennent au niveau des surfaces en contact de l'embase et du plateau mobile des formes conjuguées qui permettent de maintenir plaquées lesdites surfaces l'une contre l'autre, tout en autorisant un glissement entre elles. Preferably the connection means comprise at the level of the contacting surfaces of base plate and the moving plate of conjugate shapes that maintain plated said surfaces against each other while allowing a slippage between them.

Avantageusement, les surfaces en contact de l'embase et du plateau mobile sont sensiblement sphériques. Advantageously, the contact surfaces of the base and the moving plate are substantially spherical.

Selon un mode de réalisation, la surface de l'embase sur laquelle est susceptible de prendre appui le plateau mobile comprend à sa périphérie un rebord en saillie par rapport à ladite surface, définissant un logement susceptible de recevoir une partie du plateau mobile, un jeu étant prévu entre ledit rebord et la périphérie de la partie du plateau mobile de manière à autoriser un mouvement relatif entre le plateau et l'embase. According to one embodiment, the surface of the base on which is capable of bearing the movable plate comprises at its periphery a rim projecting relative to said surface, defining a housing capable of receiving a portion of the movable platen, a game being provided between said flange and the periphery of the portion of the movable plate so as to allow relative movement between the tray and the base.

En fonction de la disposition et de l'importance des jeux et de la forme du rebord, il est possible de maîtriser le degré de liberté du mouvement relatif et de définir une ou des directions de mouvement, ainsi que l'amplitude desdits mouvements. Depending on the arrangement and significance of the games and the shape of the flange, it is possible to control the degree of freedom of relative movement and to define one or more directions of movement, and the amplitude of said movements.

Selon une autre caractéristique de l'invention, les moyens de maintien en contact des surfaces d'appui de l'embase et du plateau mobile comportent au niveau du flanc de la partie du plateau mobile, une rainure dans laquelle est susceptible de se loger un retour, solidaire de l'extrémité libre du rebord, s'étendant sur la totalité de la périphérie dudit rebord, des moyens de According to another characteristic of the invention, the holding means contacting the bearing surfaces of the base and the mobile plate comprise at the side of the part of the moving plate, a groove in which is capable of accommodating a return integral with the free end of the flange extending over the entire periphery of said rim, means for

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déformation au niveau de la partie du plateau mobile étant prévus pour permettre son introduction dans le logement. deformation at the portion of the movable plate being provided to enable its insertion into the housing.

D'autres caractéristiques et avantages ressortiront de la description qui va suivre de l'invention, description donnée à titre d'exemple uniquement et en regard des dessins annexés sur lesquels : - la figure 1 est une vue en coupe dans un plan vertical d'une prothèse d'épaule selon l'invention, - la figure 2 est une vue en perspective d'une prothèse de glène à plateau mobile, Other features and advantages become apparent from the following description of the invention, description given by way of example only and the accompanying drawings in which: - Figure 1 is a section in a vertical plane of a shoulder prosthesis according to the invention, - Figure 2 is a perspective view of a glenoid prosthesis movable platen,

Figure img00040001

- la figure 3A est une vue en coupe se) on ! - 3A is a sectional view is) one! a direction)) !-))) de la figure 2 d'une première variante, - la figure 3B est une vue en coupe selon la direction II-III de la figure 2 d'une deuxième variante, - les figures 4A à 4E sont des vues schématiques de l'articulation d'épaule illustrant différentes combinaisons des surfaces de contact entre d'une part l'embase et le plateau mobile, et d'autre part, le plateau mobile et la tête de l'humérus, et - la figure 5 est une vue en coupe dans un plan horizontal d'une prothèse d'épaule illustrant une variante des moyens d'ancrage de la glène. a direction)) -))) of Figure 2 of a first variant, - Figure 3B is a sectional view in direction II-III of Figure 2 of a second variant, - Figures 4A to 4E are schematic views of the shoulder joint illustrating various combinations of the contact surfaces between firstly the base and the movable plate, and secondly, the movable platen and the head of the humerus, and - Figure 5 is a sectional view in a horizontal plane to a shoulder prosthesis illustrating an alternative means for anchoring the glenoid.

Sur la figure 1, on a représenté schématiquement une articulation d'épaule, notamment l'articulation scapulo-humérale 10, reliant la tête d'un humérus 12 et la cavité glénoïde de l'omoplate 14 correspondante. Figure 1 schematically shows a shoulder joint, including the shoulder joint 10, connecting the head 12 of a humerus and the glenoid cavity of the scapula 14 correspondingly.

A titre d'exemple, la tête de l'humérus 12 comprend une prothèse 16 telle que définie dans la demande de brevet WO 99/34756. For example, the head of the humerus 12 includes a prosthesis 16 as defined in the patent application WO 99/34756. Cette prothèse n'est pas plus détaillée car n'étant pas l'objet principal de l'invention. This prosthesis is not detailed as being not the main object of the invention.

En complément, l'omoplate 14 comprend une prothèse 18 de glène disposée dans un espace préalablement préparé par résection osseuse dans ladite omoplate, au niveau de la cavité glénoïdienne naturelle défectueuse. In addition, the scapula 14 includes a glenoid prosthesis 18 disposed in a space prepared in advance by bone resection in said scapula, at the defective natural glenoid fossa.

L'étape de préparation préalable à l'implantation n'est également pas décrite en détail, car à la portée du praticien, la prothèse de l'invention ne nécessitant pas une préparation particulière. The pre-preparation stage to implementation is also not described in detail as to the scope of the practitioner, the prosthesis of the invention does not require special preparation.

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Selon l'invention, la prothèse de glène 18, représentée en détail sur la figure 2, comprend une embase 20 liée à l'os par des moyens d'ancrage 22 et un plateau mobile 24 présentant une surface 26 d'appui et de logement de la tête de l'humérus 12, ainsi que des moyens 28 de liaison entre ladite embase 20 et ledit plateau mobile 24 susceptibles d'autoriser un mouvement relatif entre ces deux éléments une fois en place, notamment lors d'un mouvement de l'articulation. According to the invention, the prosthetic glenoid cavity 18, shown in detail in Figure 2, comprises a base 20 connected to the bones by anchoring means 22 and a movable plate 24 having a surface 26 supporting and housing the head of the humerus 12, and means 28 for connection between the said base 20 and said movable plate 24 may allow relative movement between these two elements when in place, in particular during movement of the joint.

Ce mouvement relatif entre l'embase 20 et le plateau mobile 24 permet de réduire sensiblement, au niveau des moyens d'ancrage 22, les effets des efforts de cisaillement générés par le mouvement de la tête de l'humérus 12 sur la surface 26 d'appui et de logement. This relative movement between the base 20 and movable plate 24 can be reduced substantially, at the anchoring means 22, the effects of shear forces generated by the movement of the head of the humerus 12 on the surface 26 d support and housing.

Ainsi, lorsque le bras se lève comme illustré par la figure 1, la tête de l'humérus 12 génère au niveau de la surface 26 d'appui et de logement un effort de cisaillement qui tend à déplacer le plateau mobile par rapport à l'embase vers le haut, comme indiqué par la flèche 27, ce qui contribue à réduire fortement l'effet de ces efforts au niveau des moyens d'ancrage. Thus, when the arm is raised as shown in Figure 1, the head of the humerus 12 generates at the surface 26 supporting and housing a shear force which tends to move the movable platen with respect to the base upwards, as indicated by the arrow 27, which contributes to strongly reduce the effect of these forces at the anchoring means.

Ainsi, en sollicitant moins ces moyens d'ancrage 22, on améliore implicitement leur résistance dans le temps, ce qui contribue à améliorer la qualité de l'ancrage et à réduire le taux d'échec des implants. Thus, soliciting least these anchoring means 22, it implicitly improves their strength over time, which helps to improve the quality of the anchorage and to reduce the failure rate of implants.

La mobilité existante entre l'embase 20 et le plateau mobile 24 permet de diminuer le rayon de courbure de la surface 26 d'appui et de logement, et donc d'augmenter la surface de contact entre la tête de l'humérus et le plateau afin de diminuer les contraintes de compression au niveau de la zone de contact. Existing mobility between the base 20 and movable plate 24 reduces the radius of curvature of the surface 26 supporting and housing, and thus increase the contact surface between the head of the humerus and the plate to reduce the compressive stresses at the contact zone.

D'autre part, ce mouvement relatif permet également de compenser les éventuelles erreurs de positionnement de la prothèse, grâce à un auto positionnement du plateau mobile 24, plus particulièrement de la surface 26 d'appui et de logement par rapport à la tête de l'humérus, cette surface pouvant se déplacer par rapport à l'ancrage. On the other hand, this relative movement also compensates any positioning errors of the prosthesis through a self positioning of the movable plate 24, particularly the surface 26 supporting and housing relative to the head of humerus, said surface being movable relative to the anchor.

Cet auto-positionnement du plateau mobile empêche, en cas d'erreur d'implantation, l'apparition d'un moment, produit par l'effort de la tête de This self-positioning of the mobile plate prevents, in case of implementation error, the appearance of a moment produced by the effort of the head

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l'humérus 12 sur la prothèse de glène 14 lorsque ces derniers ne sont pas parfaitement alignés, qui est susceptible de détériorer rapidement l'ancrage. the humerus 12 of the glenoid prosthesis 14 when they are not perfectly aligned, which is likely to quickly deteriorate the anchor.

Selon un mode de réalisation, l'embase 20 comprend une première surface d'appui 30 en contact avec la glène anatomique, une seconde surface d'appui 32 sur laquelle est susceptible de prendre appui le plateau mobile 24 et une périphérie de préférence piriforme. According to one embodiment, the base 20 includes a first bearing surface 30 in contact with the anatomical glenoid cavity, a second bearing surface 32 on which is capable of bearing the movable platen 24 and a periphery preferably piriform. Avantageusement, cette embase est métallique et la première surface d'appui 30, de préférence de forme convexe, est recouverte d'un matériel biocompatible poreux destiné à être ostéointégré. Advantageously, said base is metal and the first bearing surface 30, preferably convex in shape, is covered with a porous biocompatible material intended to be osseointegrated.

Le plateau mobile 24, de préférence en polyéthylène, comprend la surface 26 d'appui et de logement sur laquelle est susceptible de prendre appui la tête de l'humérus 12, une seconde surface 34 susceptible de prendre appui sur la surface 32 de l'embase et une périphérie de forme sensiblement identique à celle de l'embase. The movable plate 24, preferably polyethylene, comprises the surface 26 and bearing housing in which is adapted to bear the head of the humerus 12, a second surface 34 capable of resting on the surface 32 of the base and a periphery shaped substantially the same as that of the base.

Sur les figures 4A à 4E, on a représenté de manière schématique différentes combinaisons de surfaces de contact entre d'une part l'embase 20 et le plateau mobile 24, et d'autre part, le plateau mobile 24 et la tête de l'humérus 12. Figures 4A to 4E schematically shows different combinations of contact faces between firstly the base 20 and movable plate 24, and on the other hand, the movable platen 24 and the head of the humerus 12.

Sur la figure 4A, l'embase 20 et le plateau mobile 24 ont des surfaces de contact planes, le plateau mobile 24 a une surface de contact avec la tête de l'humérus concave. In Figure 4A, the base 20 and the movable plate 24 have flat contact surfaces, the movable plate 24 has a contact surface with the concave head of the humerus.

Sur la figure 4B, l'embase 20 présente une surface de contact concave sensiblement sphérique avec le plateau mobile 24, et ce dernier présente également une surface de contact avec la tête de l'humérus 12 concave sensiblement sphérique. 4B, the base 20 has a substantially spherical concave surface of contact with the movable platen 24, and the latter also has a contact surface with the head of the humerus 12 substantially spherical concave.

Sur la figure 4C, l'embase 20 présente une surface de contact concave sensiblement sphérique avec le plateau mobile 24, et ce dernier présente une surface de contact avec la tête de l'humérus 12 convexe sensiblement sphérique. In Figure 4C, the base 20 has a substantially spherical concave surface of contact with the movable platen 24, and the latter has a contact surface with the head of the humerus 12 substantially spherically convex.

Sur la figure 4D, l'embase 20 présente une surface de contact convexe sensiblement sphérique avec le plateau mobile 24, et ce dernier présente une In Figure 4D, the base 20 has a substantially spherical convex contact surface with the movable platen 24, and the latter has a

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surface de contact avec la tête de l'humérus 12 également convexe sensiblement sphérique. contact surface with the head of the humerus 12, also substantially convex spherical.

Sur la figure 4E, l'embase 20 présente une surface de contact avec le plateau mobile 24 convexe sensiblement sphérique, et ce dernier présente une surface de contact présente une surface de contact avec la tête de l'humérus 12 concave sensiblement sphérique. In Figure 4E, the base 20 has a contact surface with the movable plate 24 substantially spherically convex and the latter has a contact surface has a contact surface with the head of the humerus 12 substantially spherical concave.

Les solutions illustrées par les figures 4B à 4E sont particulièrement avantageuses car elles permettent de réduire sensiblement les sollicitations sur les moyens 22 d'ancrage. The solutions illustrated in Figures 4B to 4E are particularly advantageous because they can significantly reduce the stress on the means 22 anchor. Selon ces modes de réalisation, la résultante des efforts du plateau mobile 24 sur l'embase 20 passe toujours par le centre de la surface de contact sphérique si bien que cette résultante ne produit aucun moment par rapport audit centre. According to these embodiments, the resultant of the forces of the moving plate 24 of the base 20 always passes through the center of the spherical contact surface so that this resultant produces no moment with respect to said center. Ainsi, on peut réduire sensiblement les sollicitations sur les moyens 22 d'ancrage en positionnant de manière adéquate le centre de la surface sphérique par rapport auxdits moyens 22. Thus, one can substantially reduce the stresses on the anchor means 22 by setting adequately the center of the spherical surface with respect to said means 22.

Les moyens 28 de liaison comprennent au niveau des secondes surfaces d'appui 32,34 de l'embase et du plateau mobile des formes conjuguées qui permettent de maintenir plaquées ces deux surfaces l'une contre l'autre, tout en autorisant un glissement entre ces dernières. The means 28 comprise connecting at the second bearing surfaces 32,34 of the base and the movable platen conjugate shapes that maintain plated these two surfaces against each other while allowing a slippage between these last.

Selon un mode de réalisation, la surface d'appui 32 de l'embase comprend à sa périphérie un rebord 36 en saillie par rapport à ladite surface According to one embodiment, the bearing surface 32 of the base comprises at its periphery a flange 36 projecting with respect to said surface
32 définissant un logement 38 susceptible de recevoir une partie 40 du plateau mobile 24, la seconde surface d'appui 34 du plateau mobile venant en appui contre la surface 32. 32 defining a receptacle 38 adapted to receive a portion 40 of the moving plate 24, the second bearing surface 34 of the moving plate which bears against the surface 32.

Un jeu est prévu entre le rebord 36 et la périphérie de la partie 40 du plateau mobile de manière à autoriser un mouvement relatif entre le plateau et l'embase. A clearance is provided between the flange 36 and the periphery of the portion 40 of the moving plate so as to allow relative movement between the tray and the base.

En fonction de la disposition et de l'importance des jeux et de la forme du rebord 36, il est possible de maîtriser le degré de liberté du mouvement relatif et de définir une ou des directions de mouvement, ainsi que l'amplitude desdits mouvements. Depending on the arrangement and significance of the games and the shape of the flange 36, it is possible to control the degree of freedom of relative movement and to define one or more directions of movement, and the amplitude of said movements.

Ainsi, sur la figure 3A, le rebord 36 comprend deux portions parallèles selon la direction BB, parfaitement ajustées à la partie 40 du plateau selon la Thus, in Figure 3A, the flange 36 includes two parallel portions in the direction BB, perfectly fitting to the portion 40 of the tray according to

<Desc/Clms Page number 8> <Desc / CRUD Page number 8>

direction AA et présente un jeu selon la direction BB autorisant un mouvement de translation selon la direction BB. direction AA and has a clearance in the direction BB allowing a translational movement in the direction BB.

Sur la figure 3B, il existe, quelle que soit la direction, un jeu entre le rebord 36 et la partie 40 si bien qu'un mouvement entre le plateau et l'embase est permis quelle que soit la direction. 3B, there are, irrespective of the direction, a clearance between the flange 36 and the portion 40 so that a movement between the plate and the base is allowed regardless of the direction.

Des moyens de maintien en contact des secondes surfaces d'appui 32, 34 sont prévus et comportent au niveau de la partie 40 du plateau mobile, plus particulièrement au niveau de son flanc, une rainure 42 dans laquelle sont susceptibles de se loger un ou plusieurs ergots, ou un retour 44, solidaires de l'extrémité du rebord 36. holding means for contacting the second bearing surfaces 32, 34 are provided and comprise at the portion 40 of the moving plate, in particular at its side, a groove 42 in which may be received one or more lugs, or return 44, integral with the end of the flange 36.

Comme illustré par les différentes figures, les moyens de maintien comportent un retour 44 qui s'étend sur la totalité de la périphérie du rebord 36, des moyens de déformation au niveau de la partie 40 du plateau étant prévus pour permettre son introduction dans le logement 38. Selon un mode de réalisation, ces moyens comportent une ou plusieurs rainures 46 au niveau de la seconde surface d'appui 34 du plateau, disposées à proximité de la périphérie délimitant une ou des zones 48 déformables. As illustrated by the different figures, the holding means comprises a return 44 which extends over the entire periphery of the flange 36, of the deformation means at the portion 40 of the tray being provided to enable its insertion into the housing 38. According to one embodiment, these means comprise one or more grooves 46 at the second bearing surface 34 of the plate, disposed adjacent the periphery 48 defining one or more deformable regions.

Comme illustré par les différentes figures, et à titre d'exemple seulement, les moyens 22 d'ancrage comportent deux vis divergentes 50, disposées sensiblement dans l'alignement du pilier de l'omoplate et le pilier coracoïdien, engagées dans deux alésages 52, ménagées au niveau de l'embase 20, diamétralement opposées, assurant l'orientation angulaire divergente desdites vis. As illustrated in the various figures, and by way of example only, the anchor means 22 comprise two diverging screw 50 disposed substantially in alignment with the pillar of the scapula and the coracoid pillar, engaged in two holes 52, formed at the base 20, diametrically opposite, providing divergent angular orientation of said screws.

En complément, l'embase peut comprendre un plot 54 de positionnement, en saillie par rapport à la surface de l'embase orientée vers l'omoplate, de préférence de forme tronconique, et susceptible d'être engagé dans un logement conformé dans la glène anatomique. In addition, the base pad 54 may comprise a positioning projecting relative to the surface of the base facing towards the blade, preferably of frustoconical shape, and capable of being engaged in a housing shaped in the glenoid anatomical.

Sur la figure 5, on a représenté une autre variante des moyens d'ancrage comprenant au moins un élément incliné vers l'arrière du patient pour assurer un gain de place lors de la mise en place de la prothèse. In Figure 5, another variant of the anchoring means is shown comprising at least one inclined member toward the back of the patient to ensure a space saving in the installation of the prosthesis.

Selon un mode de réalisation préféré, les moyens 22 comprennent des picots 56 obliques par rapport à la surface 30, orientés vers le dos du patient, According to a preferred embodiment, the means 22 comprise pins 56 oblique relative to the surface 30, oriented towards the patient's back,

<Desc/Clms Page number 9> <Desc / CRUD Page number 9>

de préférence recouverts d'un matériau métallique poreux pour permettre la fixation à l'os, ainsi qu'une patte 58 plaquée contre l'os, de préférence préparé par résection, et maintenue grâce à une vis 60. selon un agencement préféré, deux picots 56 sont prévus, la vis étant disposée selon une direction verticale entre les deux picots 56. preferably covered with a porous metal material for attachment to the bone, and a tab 58 pressed against the bone, preferably prepared by resection, and held by a screw 60. In a preferred arrangement, two pins 56 are provided, the screw being disposed in a vertical direction between the two pins 56.

Bien entendu, l'invention n'est évidemment pas limitée au mode décrit ci-dessus, mais en couvre au contraire toutes les variantes, notamment en ce qui concerne les moyens d'ancrage, les formes de l'embase et du plateau mobile, le degré de liberté et la direction des mouvements du plateau mobile par rapport à l'embase. Of course, the invention is obviously not limited to the mode described above, but covers all variants, particularly regarding the anchoring means, the shapes of the base and the movable plate, the degree of freedom and movement direction of the movable platen relative to the base.

Claims (10)

REVENDICATIONS
1. Prothèse de glène d'épaule comprenant une embase (20) liée à l'os par des moyens d'ancrage (22) et un plateau mobile (24) présentant une surface (26) d'appui et de logement d'une tête d'humérus (12), caractérisée en ce qu'elle comporte des moyens (28) de liaison entre ladite embase (20) et ledit plateau (24) susceptibles d'autoriser un mouvement relatif entre ces deux éléments une fois en place, notamment lors d'un mouvement de l'articulation. 1. Shoulder prosthesis comprising a glenoid socket (20) related to the bones by anchoring means (22) and a movable platen (24) having a surface (26) supporting and housing a humerus head (12), characterized in that it comprises means (28) between said base (20) and said plate (24) capable of allowing a relative movement between these two elements once in place, in particular upon movement of the joint.
2. Prothèse de glène d'épaule selon la revendication 1, caractérisée en ce que les moyens (28) de liaison comprennent, au niveau des surfaces en contact (32,34) de l'embase et du plateau mobile, des formes conjuguées qui permettent de maintenir plaquées lesdites surfaces l'une contre l'autre, tout en autorisant un glissement entre elles. 2. The prosthetic glenoid shoulder according to claim 1, characterized in that the means (28) for connection comprise at the level of the contact surfaces (32,34) of the base and the movable plate, conjugated forms which possible to maintain plated said surfaces against each other while allowing a slippage between them.
3. Prothèse de glène d'épaule selon la revendication 2, caractérisée en ce que les surfaces en contact (32,34) de l'embase et du plateau mobile sont sensiblement sphériques. 3. The prosthetic glenoid shoulder as claimed in claim 2, characterized in that the contact surfaces (32,34) of the base and the moving plate are substantially spherical.
4. Prothèse de glène d'épaule selon la revendication 3, caractérisée en ce que l'embase (20) présente une surface de contact avec le plateau mobile (24) concave. 4. The prosthetic glenoid shoulder according to Claim 3, characterized in that the base (20) has a contact surface with the movable platen (24) concave.
5. Prothèse de glène d'épaule selon la revendication 3, caractérisé en ce que l'embase (20) présente une surface de contact avec le plateau mobile (24) convexe. 5. The prosthetic glenoid shoulder according to Claim 3, characterized in that the base (20) has a contact surface with the movable platen (24) convex.
6. Prothèse de glène d'épaule selon l'une quelconque des revendications 2 à 5, caractérisée en ce que la surface d'appui (32) de l'embase sur laquelle est susceptible de prendre appui le plateau mobile (24) comprend à sa périphérie un rebord (36) en saillie par rapport à ladite surface (32) définissant un logement (38) susceptible de recevoir une partie (40) du plateau mobile (24), un jeu étant prévu entre ledit rebord (36) et la périphérie de la partie (40) du plateau mobile de manière à autoriser un mouvement relatif entre le plateau et l'embase. 6. The prosthetic glenoid shoulder as claimed in any one of Claims 2 to 5, characterized in that the bearing surface (32) of the base on which is capable of bearing the movable platen (24) includes its periphery a rim (36) projecting relative to said surface (32) defining a housing (38) capable of receiving a portion (40) of the movable platen (24), a clearance being provided between said flange (36) and the periphery of the portion (40) of the movable platen so as to allow relative movement between the tray and the base.
<Desc/Clms Page number 11> <Desc / CRUD Page number 11>
7. Prothèse de glène d'épaule selon la revendication 6, caractérisée en ce qu'elle comprend des moyens pour définir le degré de liberté du mouvement relatif et régler les amplitudes de mouvement en fonction de la disposition et de l'importance des jeux et de la forme du rebord (36). 7. The prosthetic glenoid shoulder according to claim 6, characterized in that it comprises means for defining the degree of freedom of relative movement and adjust the amplitudes of movement based on the arrangement and significance of games and the shape of the rim (36).
8. Prothèse de glène d'épaule selon la revendication 6 ou 7, caractérisée en ce que des moyens de maintien en contact des surfaces d'appui (32,34) de l'embase et du plateau mobile sont prévus, et comportent au niveau du flanc de la partie (40) du plateau mobile, une rainure (42) dans laquelle sont susceptibles de se loger un ou plusieurs ergots, ou un retour (44), solidaires de l'extrémité du rebord (36). 8. The prosthesis of shoulder glenoid according to claim 6 or 7, characterized in that holding means contacting the bearing surfaces (32,34) of the base and the movable plate are provided, and comprise at the side of the portion (40) of the moving plate, a groove (42) wherein are capable of accommodating one or more pins, or a return (44) integral with the end of the flange (36).
9. Prothèse de glène d'épaule selon la revendication 8, caractérisée en ce que les moyens de maintien comportent un retour (44) qui s'étend sur la totalité de la périphérie du rebord (36), des moyens de déformation au niveau de la partie (40) du plateau mobile étant prévus pour permettre son introduction dans le logement (38). 9. The prosthetic glenoid shoulder as claimed in claim 8, characterized in that the holding means comprise a return (44) which extends over the entire periphery of the rim (36), deformation means at the portion (40) of the movable platen being provided to enable its insertion into the housing (38).
10. Prothèse de glène d'épaule selon la revendication 9, caractérisée en ce que les moyens de déformation comportent une ou plusieurs rainures (46) au niveau de la surface d'appui (34) du plateau mobile en contact avec l'embase, disposées à proximité de la périphérie délimitant une ou des zones déformables (48). 10. The prosthetic glenoid shoulder as claimed in claim 9, characterized in that the deformation means comprise one or more grooves (46) at the bearing surface (34) of the mobile plate in contact with the base, disposed near the periphery defining one or more deformable regions (48).
FR0107068A 2001-05-30 2001-05-30 Shoulder joint prosthesis has cap on humerus to engage socket with movement limiting stop surfaces Pending FR2825263A1 (en)

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EP1510190A1 (en) * 2003-08-25 2005-03-02 Tornier Glenoid component of a shoulder prosthesis and total shoulder prosthesis comprising such a component
EP1762201A1 (en) * 2005-09-08 2007-03-14 Biomet Manufacturing Corporation Method and apparatus for a glenoid prosthesis
WO2007031575A1 (en) * 2005-09-16 2007-03-22 Zimmer Gmbh Insert and shell of a joint ball receptacle
EP1776935A1 (en) * 2005-10-24 2007-04-25 Benoist Girard Sas Prosthetic glenoid component
WO2007096741A3 (en) * 2006-02-23 2007-12-21 Depuy Ireland Ltd A glenoid component of a shoulder joint prosthesis
EP1902689A1 (en) * 2006-09-20 2008-03-26 DePuy Products, Inc. Glenoid component for shoulder arthroplasty
WO2009132767A1 (en) * 2008-04-28 2009-11-05 Smith & Nephew Orthopaedics Ag Scapular component of a shoulder joint prosthesis
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FR2955248A1 (en) * 2010-01-21 2011-07-22 Tornier Sa Shoulder prosthesis glenoidal component for use on coil of scapula, has fixation base provided with anchoring unit, and plate defining articular surface on plate opposed face, where articular surface cooperates with humeral head
WO2011140191A1 (en) 2010-05-05 2011-11-10 Depuy Products, Inc Mobile bearing glenoid prosthesis
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GB2492810A (en) * 2011-07-13 2013-01-16 Upper Limb Innovations Ltd Prosthesis head and base with offset attachment means
US8465548B2 (en) 2010-11-24 2013-06-18 DePuy Synthes Products, LLC Modular glenoid prosthesis
US8480750B2 (en) 2010-11-24 2013-07-09 DePuy Synthes Products, LLC Modular glenoid prosthesis
EP2630935A1 (en) * 2012-02-27 2013-08-28 Arthrex, Inc. Glenoid extension block
US8556980B2 (en) 2004-09-27 2013-10-15 DePuy Synthes Products, LLC Glenoid augment and associated method
EP2653136A3 (en) * 2012-03-27 2013-11-27 DePuy Synthes Products LLC Glenoid defect-filling component
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US9248022B2 (en) 2012-03-27 2016-02-02 DePuy Synthes Products, Inc. Method of implanting a glenoid defect-filling component
FR3048357A1 (en) * 2016-03-02 2017-09-08 Guy Villaret Base glenoid for shoulder prosthesis, and implantation assembly comprising such a base glenoid
US9775716B2 (en) 2013-03-11 2017-10-03 Catalyst Orthoscience Inc. Glenoid arthroplasty
US9814471B2 (en) 2013-03-11 2017-11-14 Catalyst Orthoscience Inc. Glenoid arthroplasty and offset reamers
US9814588B2 (en) 2015-08-10 2017-11-14 Catalyst Orthoscience Inc. Glenoid arthroplasty with multi-directional fixation
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US8075628B2 (en) 2002-04-25 2011-12-13 Zimmer, Inc. Modular bone implant, tools, and method
US20120041563A1 (en) * 2003-08-11 2012-02-16 Chudik Steven C Resurfacing implant for a humeral head
EP1510190A1 (en) * 2003-08-25 2005-03-02 Tornier Glenoid component of a shoulder prosthesis and total shoulder prosthesis comprising such a component
US9149362B2 (en) 2004-09-27 2015-10-06 DePuy Synthes Products, Inc. Instrument for preparing an implant support surface and associated method
US8556980B2 (en) 2004-09-27 2013-10-15 DePuy Synthes Products, LLC Glenoid augment and associated method
EP1762201A1 (en) * 2005-09-08 2007-03-14 Biomet Manufacturing Corporation Method and apparatus for a glenoid prosthesis
WO2007031575A1 (en) * 2005-09-16 2007-03-22 Zimmer Gmbh Insert and shell of a joint ball receptacle
US8608805B2 (en) 2005-09-16 2013-12-17 Zimmer Gmbh Insert and shell of a joint ball receptacle
EP1776935A1 (en) * 2005-10-24 2007-04-25 Benoist Girard Sas Prosthetic glenoid component
GB2431354A (en) * 2005-10-24 2007-04-25 Benoist Girard Sas A prosthetic glenoid component with soft bearing surface
US8690951B2 (en) 2005-11-18 2014-04-08 Zimmer, Gmbh Base platform for an artificial joint
US9770334B2 (en) 2006-01-20 2017-09-26 Zimmer, Inc. Shoulder arthroplasty system
US7854768B2 (en) 2006-01-20 2010-12-21 Zimmer Technology, Inc. Shoulder arthroplasty system
US8940054B2 (en) 2006-01-20 2015-01-27 Zimmer Technology, Inc. Shoulder arthroplasty system
US9283075B2 (en) 2006-01-20 2016-03-15 Zimmer, Inc. Shoulder arthroplasty system
WO2007096741A3 (en) * 2006-02-23 2007-12-21 Depuy Ireland Ltd A glenoid component of a shoulder joint prosthesis
AU2007219214B2 (en) * 2006-02-23 2012-08-23 Depuy Ireland Unlimited Company A glenoid component of a shoulder joint prosthesis
CN101156810B (en) 2006-09-20 2011-06-15 德普伊产品公司 Glenoid component for shoulder arthroplasty
US10182867B2 (en) 2006-09-20 2019-01-22 DePuy Synthes Products, Inc. Glenoid component for shoulder arthroplasty
US7604665B2 (en) 2006-09-20 2009-10-20 Depuy Products, Inc. Glenoid component for shoulder arthroplasty
AU2007216831B2 (en) * 2006-09-20 2012-03-29 Depuy Products, Inc Glenoid component for shoulder arthroplasty
EP1902689A1 (en) * 2006-09-20 2008-03-26 DePuy Products, Inc. Glenoid component for shoulder arthroplasty
WO2009132767A1 (en) * 2008-04-28 2009-11-05 Smith & Nephew Orthopaedics Ag Scapular component of a shoulder joint prosthesis
US8241365B2 (en) 2008-12-23 2012-08-14 Depuy Products, Inc. Shoulder prosthesis with vault-filling structure having bone-sparing configuration
US8721726B2 (en) * 2008-12-29 2014-05-13 Aston Medical Developments Limited Glenoid implant
US20120089233A1 (en) * 2008-12-29 2012-04-12 Aston Medical Developments Limited Glenoid implant
US8231683B2 (en) 2009-12-08 2012-07-31 Depuy Products, Inc. Shoulder prosthesis assembly having glenoid rim replacement structure
FR2955248A1 (en) * 2010-01-21 2011-07-22 Tornier Sa Shoulder prosthesis glenoidal component for use on coil of scapula, has fixation base provided with anchoring unit, and plate defining articular surface on plate opposed face, where articular surface cooperates with humeral head
WO2011140191A1 (en) 2010-05-05 2011-11-10 Depuy Products, Inc Mobile bearing glenoid prosthesis
US8882845B2 (en) 2010-05-05 2014-11-11 DePuy Synthes Products, LLC Mobile bearing glenoid prosthesis
US9439769B2 (en) 2010-05-05 2016-09-13 DePuy Synthes Products, Inc. Mobile bearing glenoid prosthesis
US8480750B2 (en) 2010-11-24 2013-07-09 DePuy Synthes Products, LLC Modular glenoid prosthesis
US8465548B2 (en) 2010-11-24 2013-06-18 DePuy Synthes Products, LLC Modular glenoid prosthesis
US9301848B2 (en) 2010-11-24 2016-04-05 DePuy Synthes Products, Inc. Modular glenoid prosthesis
US8961611B2 (en) 2010-11-24 2015-02-24 DePuy Synthes Products, LLC Modular glenoid prosthesis
GB2492810A (en) * 2011-07-13 2013-01-16 Upper Limb Innovations Ltd Prosthesis head and base with offset attachment means
US9216091B2 (en) 2012-02-27 2015-12-22 Arthrex, Inc. Glenoid extension block
EP2630935A1 (en) * 2012-02-27 2013-08-28 Arthrex, Inc. Glenoid extension block
EP2653136A3 (en) * 2012-03-27 2013-11-27 DePuy Synthes Products LLC Glenoid defect-filling component
EP3053549A1 (en) * 2012-03-27 2016-08-10 DePuy Synthes Products LLC Glenoid defect-filling component
US9498334B2 (en) 2012-03-27 2016-11-22 DePuy Synthes Products, Inc. Glenoid defect-filling component
US9248022B2 (en) 2012-03-27 2016-02-02 DePuy Synthes Products, Inc. Method of implanting a glenoid defect-filling component
US9775716B2 (en) 2013-03-11 2017-10-03 Catalyst Orthoscience Inc. Glenoid arthroplasty
US9814471B2 (en) 2013-03-11 2017-11-14 Catalyst Orthoscience Inc. Glenoid arthroplasty and offset reamers
USD810940S1 (en) 2013-03-11 2018-02-20 Catalyst Orthoscience Inc. Implant
US9814588B2 (en) 2015-08-10 2017-11-14 Catalyst Orthoscience Inc. Glenoid arthroplasty with multi-directional fixation
FR3048357A1 (en) * 2016-03-02 2017-09-08 Guy Villaret Base glenoid for shoulder prosthesis, and implantation assembly comprising such a base glenoid
US10383735B2 (en) 2017-07-28 2019-08-20 Zimmer, Inc. Shoulder arthroplasty system

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