FR2688689A1 - Device for intra-osseous fixation of an artificial ligament - Google Patents

Device for intra-osseous fixation of an artificial ligament Download PDF

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Publication number
FR2688689A1
FR2688689A1 FR9203249A FR9203249A FR2688689A1 FR 2688689 A1 FR2688689 A1 FR 2688689A1 FR 9203249 A FR9203249 A FR 9203249A FR 9203249 A FR9203249 A FR 9203249A FR 2688689 A1 FR2688689 A1 FR 2688689A1
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France
Prior art keywords
ligament
screw
characterized
preceding
tunnel
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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Withdrawn
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FR9203249A
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French (fr)
Inventor
Laboureau Jacques Philippe
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LABOUREAU JACQUES
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LABOUREAU JACQUES
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Priority to FR9203249A priority Critical patent/FR2688689A1/en
Publication of FR2688689A1 publication Critical patent/FR2688689A1/en
Application status is Withdrawn legal-status Critical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
    • A61F2/08Muscles; Tendons; Ligaments
    • A61F2/0811Fixation devices for tendons or ligaments
    • 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
    • A61B17/8625Shanks, i.e. parts contacting bone tissue
    • A61B17/863Shanks, i.e. parts contacting bone tissue with thread interrupted or changing its form along shank, other than constant taper
    • 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
    • A61B17/8645Headless screws, e.g. ligament interference 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
    • A61F2/08Muscles; Tendons; Ligaments
    • A61F2/0811Fixation devices for tendons or ligaments
    • A61F2002/0817Structure of the anchor
    • A61F2002/0841Longitudinal channel for insertion tool running through the whole tendon anchor, e.g. for accommodating bone drill, guidewire
    • 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
    • A61F2/08Muscles; Tendons; Ligaments
    • A61F2/0811Fixation devices for tendons or ligaments
    • A61F2002/0847Mode of fixation of anchor to tendon or ligament
    • A61F2002/0858Fixation of tendon or ligament between anchor and bone, e.g. interference screws, wedges
    • 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
    • A61F2/08Muscles; Tendons; Ligaments
    • A61F2/0811Fixation devices for tendons or ligaments
    • A61F2002/0876Position of anchor in respect to the bone
    • A61F2002/0882Anchor in or on top of a bone tunnel, i.e. a hole running through the entire bone

Abstract

The present invention relates to a device for fixation of an artificial ligament (8) at an insertion tunnel made in an osseous part of a joint for the passage of the said ligament (8), characterised in that it consists of a screw (1) with a shank (2) threaded over its entire length, which is screwed into the said osseous tunnel in order to clamp the said ligament (8) against the internal wall of the said osseous tunnel. <IMAGE>

Description

DISPOSITIF POUR LA FIXATION INTRA-OSSEUSE D'UN LIGAMENT DEVICE FOR INTRA-BONE FIXING A LIGAMENT
ARTIFICIEL ARTIFICIAL
La présente invention concerne un nouveau dispositif pour la fixation intra-osseuse d'un ligament artificiel. The invention relates to a new device for intraosseous fixation of an artificial ligament.

On connaît les agrafes ligamentaires destinées à la fixation d'un ligament artificiel pour le remplacement d'un ligament articulaire naturel, distendu ou rompu. We know the ligament staples for fixing an artificial ligament for the replacement of a natural articular ligament, stretched or broken. En particulier, lors du remplacement d'un ligament croisé antérieur du genou, une agrafe vient fixer l'extrémité du ligament prothétique sur la tubérosité antérieure du tibia, tandis qu'une autre agrafe le fixe sur la face externe du condyle fémoral externe. In particular, when replacing an anterior cruciate ligament of the knee, a staple comes The end of the prosthetic ligament on the anterior tubercle of the tibia, while another clip fixed on the external face of the lateral femoral condyle. Dans ce dernier cas, le ligament émergeant du tunnel d'insertion tibial est replié vers le bas avant d'être agrafé, ce qui présente l'inconvénient de modifier la direction de la tension des fibres longitudinales qui constituent généralement ledit ligament. In the latter case, the ligament emerging from the tibial tunnel insertion is folded down before being stapled, which has the disadvantage of modifying the direction of the tension of the longitudinal fibers which usually constitute said ligament. En outre, hormis le fait que l'agrafe ligamentaire implantée sur la tubérosité tibiale antérieure forme, en relief sous la peau, une bosse disgracieuse, voire gênante, cette technique de fixation du ligament nécessite de pratiquer une incision qui, une fois suturée, aggrave encore l'aspect disgracieux dû à la présence de l'agrafe sous la peau. In addition, except that the ligament clip implanted on the tibial tuberosity forms, embossed under the skin, an unsightly bump or bothersome, this ligament fixation technique requires an incision that once sutured, worsens still unsightly due to the presence of the clip under the skin.

La présente invention vise à remédier à ces inconvénients en proposant un nouveau dispositif pour la fixation d'un ligament artificiel au niveau d'un tunnel d'insertion pratiqué dans une partie osseuse d'une articulation pour le passage dudit ligament, caractérisé en ce qu'il est constitué par une vis à tige filetée sur toute sa longueur, que l'on vient visser dans ledit tunnel osseux pour serrer ledit ligament contre la paroi interne dudit tunnel. The present invention aims to remedy these disadvantages by providing a new device for fixing an artificial ligament at an insertion tunnel formed in a bone portion of a joint for passage of said ligament, characterized in that it is constituted by a screw threaded rod over its entire length, that is screwed into said bone tunnel for clamping said ligament against the inner wall of said tunnel.

De cette façon, la partie intra-osseuse du ligament est fixée parallèlement au tunnel osseux, c'est-à-dire dans la même direction que sa partie intra-articulaire, et sans qu'il soit nécessaire de l'attacher contre l'os au moyen d'une agrafe. In this manner, the intraosseous portion of the ligament is attached parallel to the bone tunnel, that is to say in the same direction as its intra-articular part, and without the need to tie against the bone by means of a clip. En outre, la vis étant normalement enfouie jusqu'à ce que sa tête vienne affleurer au niveau de l'ouverture du tunnel osseux, le cas échéant élargie à son extrémité par un lamage adéquat, le ligament ainsi fixé peut être sectionné presque au ras de la corticale il n'apparaît alors pratiquement aucune saillie disgracieuse ou douloureuse sous la peau. In addition, the screw being normally buried until its head comes flush with the level of the opening of the bone tunnel, where appropriate widened at its end by a suitable counterbore, the thus fixed ligament can be cut almost flush with cortical it appears virtually no unsightly or painful protrusion under the skin.

D'autres caractéristiques et avantages de l'invention ressortiront mieux de la description qui va suivre d'un mode d'exécution d'une vis ligamentaire donnée à titre d'exemple non limitatif en référence au dessin annexé sur lequel Other features and advantages of the invention become apparent from the following description of an embodiment of a ligament screw given by way of non-limiting example with reference to the accompanying drawings in which
- la figure 1 est une vue extérieure de profil de la vis avec, agrandi à plus grande échelle, le détail du filetage, - Figure 1 is an external view of the screw profile with enlarged larger scale, the detail of the thread,
- la figure 2 est une vue en perspective schématique de l'articulation fémoro-tibiale, montrant plus particulièrement la mise en place de la vis ligamentaire, représentée sur la figure 1, au niveau des extrémités tibiale et fémorale d'un ligament prothétique pour le remplacement du croisé antérieur du genou. - Figure 2 is a schematic perspective view of the knee joint, showing more particularly the introduction of ligament screws, shown in Figure 1, at the tibial and femoral ends of a prosthetic ligament for the replacement of the anterior cruciate knee.

Suivant la forme d'exécution reproduite sur la figure 1, la vis de fixation d'un ligament, ou vis ligamentaire 1, comporte une tige 2 de forme cylindroconique, avec une partie cylindrique 3 s'étendant sous la tête 4 de ladite vis 1 qui est prolongée, du côté distal, par une partie conique ou au moins tronconique 5. La longueur de la partie cylindrique 3 est prise la plus grande possible et, préférentiellement, elle aura au moins une longueur égale à la moitié de la longueur totale de la tige 2. Next the embodiment reproduced in Figure 1, the screw for fixing a ligament or ligament screw 1 comprises a shank 2 of cylindro-conical shape, with a cylindrical portion 3 extending below the head 4 of the screw 1 which is extended, the distal end, in a conical or at least frusto-conical 5. the length of the cylindrical portion 3 is made as large as possible and preferably it will have at least a length equal to half the total length of the rod 2.

Suivant une caractéristique avantageuse de l'invention, aussi bien les parties cylindrique 3 que tronconique 5 de la tige 2 sont filetées, ce qui permet d'introduire la vis ligamentaire 1 très progressivement dans l'os. According to an advantageous characteristic of the invention, both cylindrical parts 3 that frustoconical 5 of the shaft 2 are threaded, which allows to introduce the screw 1 very gradually ligament in the bone. A cet égard, le pas du filetage présente une longueur adéquate, par exemple 2,25 millimètres, pour que la vis 1 puisse être introduite sans effort ; In this regard, the thread pitch has a suitable length, for example 2.25 millimeters, so that the screw 1 can be inserted effortlessly; le cas échéant, s'il s'avérait utile d'augmenter ce pas, on pourrait tout à fait doubler le filetage. if so, whether it was useful to increase that no one could quite double the thread.

Suivant une autre caractéristique de l'invention, mieux apparente sur le détail agrandi de la figure 1, la vis 1 est pourvue d'un filetage non triangulaire ; According to another feature of the invention, better visible in the enlarged detail of Figure 1, the screw 1 is provided with a non-triangular thread; en effet, étant donné que les ligaments artificiels sont couramment réalisés à partir d'une bande textile roulée sur elle-même, cette disposition de l'invention permet de ne pas cisailler lesdits ligaments lors de la fixation de la vis 1 à l'intérieur du tunnel osseux. indeed, since the artificial ligaments are commonly made from a textile strip rolled over itself, this arrangement of the invention allows not to shear said ligaments when fixing of the screw 1 within of the bone tunnel.

A cet effet, suivant la variante d'exécution préférentielle décrite ici, les filets 6 de la vis 1 sont ronds, ou du moins arrondis, le fond 7 des filets 6 étant, quant à lui, cylindrique ; To this end, according to the preferred embodiment described herein, the threads 6 of the screw 1 are round or at least rounded, the bottom 7 of the threads 6 are, in turn, cylindrical; par exemple, dans le cas d'un filetage de pas égal à 2,25 millimètres, les filets 6, de section sensiblement hémi-circulaire, peuvent avoir un rayon de 0,75 millimètre, avec une hauteur égale à 0,6 millimètre. for example, in the case of a thread pitch equal to 2.25 mm, the threads 6, of substantially semicircular section, may have a radius of 0.75 millimeters with a 0.6 millimeter pitch. Le noyau de la partie cylindrique 3 de la tige 2 pourra, dans ce dernier cas, avoir un diamètre de 4 millimètres, la partie tronconique 5 ayant, par exemple, une petite base d'environ 2,2 millimètres de diamètre au niveau du fond du filetage. The core of the cylindrical portion 3 of the rod 2 may, in this case, have a diameter of 4 millimeters, the frustoconical portion 5 having, for example, a small base of about 2.2 mm diameter at the bottom the thread.

La forme arrondie des filets 6 n'est bien entendu pas obligatoire et, en particulier, il est tout à fait possible de choisir un filetage carré ou trapézoïdal ; The rounded shape of the threads 6 is obviously not mandatory and, in particular, it is quite possible to choose a square or trapezoidal thread; ces filetages, sans être autant à bannir qu'un filetage triangulaire, présentent néanmoins le désavantage d'avoir des filets 6 aux arêtes vives qui sont donc le cas échéant coupantes. these threads, but not much to banish a triangular thread, however, have the disadvantage of having nets 6 with sharp edges that are so appropriate sharp.

Une fois vissée dans un tunnel osseux d'où émerge un ligament artificiel préalablement mis en place pour le remplacement d'un ligament articulaire, la partie cylindrique 3 de la tige filetée 2 sollicite très fortement ledit ligament contre la paroi interne dudit tunnel, sans toutefois l'endommager. Once screwed into a bone tunnel from which emerges an artificial ligament initially introduced for replacing an articular ligament, the cylindrical portion 3 of the threaded rod 2 biases said ligament strongly against the inner wall of said tunnel, without damage. A cet égard, une vis à tige entièrement tronconique solliciterait le ligament uniquement dans sa partie la plus large, à savoir sous la tête, et ne procurerait donc pas un serrage uniformément réparti sur une longueur aussi longue que celle de la partie cylindrique 3. La répartition de la force de serrage ici obtenue, combinée avec la forme adoucie des filets 6, procure par conséquent une fixation du ligament dans le tunnel osseux qui est incontestablement plus durable et plus sûre que celle jusqu'alors connue en employant des agrafes ligamentaires classiques. In this regard, a screw rod fully frustoconical solicit the ligament only in its widest part, namely in the head, and therefore does not procure a uniformly distributed clamping over such a long length as that of the cylindrical portion 3. The distribution of the clamping force obtained here, combined with the shape softened the threads 6, therefore provides a fixation of the ligament in the bone tunnel which is undoubtedly more durable and safer than known hitherto using conventional ligament staples.

La vis ligamentaire 1 précédemment décrite peut être utilisée de deux manières différentes Ligament screw 1 described earlier can be used in two different ways
- dans une première variante, une incision suffisamment large est pratiquée dans les chairs recouvrant l'os de l'articulation à restaurer pour que l'entrée du tunnel osseux d'où émerge le ligament artificiel préalablement mis en place soit parfaitement accessible et visible. - in a first alternative, a sufficiently large incision is made in the flesh covering the bones of the joint to be restored so that the entry of the bone tunnel from which emerges the artificial ligament previously positioned is perfectly accessible and visible. Dans ce premier cas, l'extrémité distale de la vis 1 peut être disposée en regard de l'entrée du tunnel osseux concerné pour y être vissée par tout moyen conventionnel. In this first case, the distal end of the screw 1 may be arranged opposite the entrance of the bone tunnel in question to be screwed by any conventional means.

- dans une seconde variante, qui sera maintenant décrite en référence à la figure 2, l'incision pratiquée dans l'aponévrose et les muscles est volontairement de faible largeur ; - in a second variant, which will now be described with reference to Figure 2, the incision in the fascia and muscle is voluntarily narrow width; dans ce cas, on parlera d'ailleurs plus d'une moucheture cutanée que d'une incision. in this case, we speak also more than one skin fleck that an incision. Afin de décrire un cas d'utilisation relativement courant, on a représenté, sur la figure 2, la dernière etape de la mise en place d'un ligament artificiel 8 pour le remplacement du ligament croisé antérieur du genou. To describe a case relatively common use is shown on Figure 2, the last step in the implementation of an artificial ligament 8 for replacement of the anterior knee ligament.

La figure 2 montre ainsi le squelette de l'articulation fémoro-tibiale avec, du côté du fémur 9, une première extrémité du ligament 8 émergeant du tunnel d'insertion fémoral (non représenté sur la figure) et, du côté du tibia 10, la seconde extrémité dudit ligament 8 émergeant du tunnel d'insertion tibial. Figure 2 thus shows the skeleton of the knee joint with the side of the femur 9, one end of the ligament 8 emerging from the insertion of femoral tunnel (not shown in the figure) and the side of the tibia 10, the second end of said ligament 8 emerging from the tibial insertion tunnel. Du côté tibial, ou du côté fémoral, le ligament est fixé à un fil de traction 11 ayant préalablement servi à le faire passer au travers des deux tunnels d'insertion, alignés ou non en coïncidence l'un avec l'autre. The tibial side or femoral side, the ligament is attached to a pull wire 11 having previously used for the passing through both insertion tunnels, aligned or non-coincident with each other.

Dans la technique de pose du ligament 8 ici mise en oeuvre, on a passé, par des moyens adéquats, une broche 12 au travers des deux tunnels fémoral et tibial, laquelle est donc coincée par le ligament 8 contre la paroi interne des deux tunnels d'insertion fémoral et tibial. In the technique of laying of ligament 8 by implementation, we had, by adequate means, a pin 12 through the two femoral and tibial tunnels, which is wedged by ligament 8 against the inner wall of the two tunnels femoral and tibial insertion. Cette broche 12, qui émerge hors de la peau par la moucheture cutanée pratiquée dans les chairs, va servir, suivant la présente invention, à engager et à guider une vis ligamentaire 1 jusqu'à l'entrée des tunnels fémoral et tibial qui, sans cette broche de guidage 12, seraient totalement inaccessibles au praticien. This pin 12 which emerges out of the skin by the skin fleck practiced in the flesh, will be used according to the present invention, to engage and guide a ligament screw 1 until the entry of the femoral and tibial tunnels which, without this guide pin 12, would be totally inaccessible to the practitioner.

A cet effet, il est prévu de forer longitudinalement la vis ligamentaire 1 de part en part, de sorte qu'elle puisse être coulissée librement le long de ladite broche de guidage-12. To this end, there is provided longitudinally to drill ligament screw 1 from side to side, so that it can be displaced freely along said guide-pin 12. En faisant alors progresser la vis 1 le long de cette dernière, jusqu'à ce que son extrémité distale vienne au contact de l'entrée du tunnel tibial, le praticien est assuré d'engager la tige 2 de la vis 1 aux côtés du ligament 8 sans, d'ailleurs, qu'il lui soit possible de dévier de la direction des tunnels d'insertion. By then advance the screw 1 along the latter until its distal end comes into contact with the entrance to the tibial tunnel, the practitioner is provided to engage the shank 2 of the screw 1 alongside ligament 8 without, however, that it is possible to deviate from the direction of insertion tunnels.

Conformément à une caractéristique complémentaire de la présente invention, il est prévu que la vis 1 présente une tête 4 cylindrique à six pans creux pouvant coopérer avec une clé 13 à six pans, elle-même forée pour pouvoir coulisser le long de la broche de guidage 12. De la sorte, en engageant la partie distale de la clé 13 dans la partie proximale de la tête 4 de la vis 1, le praticien peut sans difficulté enfoncer cette dernière jusqu'à la zone de fixation du ligament 8, puis la visser exactement dans le tunnel tibial. In accordance with an additional feature of the present invention, it is provided that the screw 1 has a 4 cylindrical head with hexagon socket engageable with a key 13 Hexagon itself drilled to be slidable along the guide pin 12. in this way, by engaging the distal portion of the key 13 in the proximal portion of the head 4 of the screw 1, the operator can easily push the latter to the fixing area 8 of the ligament, and then the screw exactly in the tibial tunnel. Pendant cette opération de vissage, il est à noter que la broche de maintien 11 permet de tendre le ligament 8 dans sa position d'élongation optimale, parallèle au tunnel tibial, ce qui assure d'obtenir une fixation des fibres longitudinales actives du ligament 8 dans leur direction propre. During this screwing operation, it is noted that the holding pin 11 allows to tension the ligament 8 in its position of maximum elongation parallel to the tibial tunnel, which ensures to obtain a fixation of the active longitudinal fibers of the ligament 8 in their own direction.

Une fois le ligament 8 fermement bloqué par la vis ligamentaire 1, le praticien peut retirer la broche de guidage 12, puis décrocher l'extrémité du ligament 8 de la partie distale de la broche de maintien 11, avant de proceder à une résection de l'extrémité dudit ligament 8 qui déborde hors du tunnel osseux tibial. Once the ligament 8 firmly blocked ligament screw 1, the practitioner may remove the guide pin 12 and then hooking the end of the ligament 8 to the distal portion of the pin holding 11, before proceeding to a resection of the end of said ligament 8 which projects out of the tibial bone tunnel.

On rappellera enfin que cette technique de mise en place et de fixation du ligament 8 présente des avantages indéniables quant à la diminution des suites opératoires ; This technique is finally recalled that of establishing and fixing the ligament 8 has undeniable advantages in the reduction of postoperative; en effet, le vissage de la vis ligamentaire 1 le long de la broche 12 se fait "à l'aveugle", mais en toute sécurité, sans qu'il soit donc nécessaire de pratiquer, sur l'avant du tibia ou la face externe du fémur, une trop large incision de l'aponévrose et des muscles ; In fact, screwing the screw ligament 1 along pin 12 is "blind", but safely, without therefore necessary to perform, on the front of the tibia or the outer face the femur, too large incision of the fascia and muscles; de cet fait, la suture et la cicatrisation des chairs sont très rapides et ne laissent pratiquement aucune marque disgracieuse sur la peau. This fact, suturing and wound flesh are very fast and leave virtually no unsightly marks on the skin.

Claims (8)

REVENDICATIONS
1 - Dispositif pour la fixation d'un ligament artificiel (8) au niveau d'un tunnel d'insertion pratiqué dans une partie osseuse d'une articulation pour le passage dudit ligament (8), caractérisé en ce qu'il est constitué par une vis (1) à tige (2) filetée sur toute sa longueur, que l'on vient visser dans ledit tunnel osseux pour serrer ledit ligament (8) contre la paroi interne dudit tunnel osseux. 1 - Device for fixing an artificial ligament (8) at an insertion tunnel formed in a bone portion of a joint for passage of said ligament (8), characterized in that it consists of a screw (1) to shaft (2) threaded over its entire length, that is screwed into said bone tunnel for clamping said ligament (8) against the inner wall of said bone tunnel.
2 - Dispositif de fixation ligamentaire selon la revendication précédente, caractérisé en ce que la tige (2) filetée de la vis (l) est de forme cylindroconique, avec une partie cylindrique (3) s'étendant sous la tête (4) de ladite vis (1) sur une longueur au moins égale à la moitié de la longueur de ladite tige (2). 2 - A ligament fixation device according to preceding claim, characterized in that the rod (2) threaded of the screw (s) is of cylindro-conical shape, with a cylindrical portion (3) extending under the head (4) of said screw (1) over a length at least equal to half the length of said rod (2).
3 - Dispositif de fixation ligamentaire selon l'une quelconque des revendications précedentes, caractérisé en ce que le filetage de la vis (1) est non triangulaire. 3 - A ligament fixation according to any one of the preceding claims, characterized in that the thread of the screw (1) is not triangular.
4 - Dispositif de fixation ligamentaire selon la revendication précédente, caractérisé en ce que le filetage de la vis (1) est carré ou trapézoïdal. 4 - A ligament fixation device according to preceding claim, characterized in that the thread of the screw (1) is square or trapezoidal.
5 - Dispositif de fixation ligamentaire selon la revendication 3, caractérisé en ce que le filetage est rond ou arrondi. 5 - A ligament fixation device of claim 3, characterized in that the thread is round or rounded.
6 - Dispositif de fixation ligamentaire selon la revendication précédente, caractérisé en ce que le fond (7) des filets (6) est cylindrique. 6 - ligament fixation device according to the preceding claim, characterized in that the bottom (7) of the threads (6) is cylindrical.
7 - Dispositif de fixation ligamentaire selon l'une quelconque des revendications précédentes, caractérisé en ce que la tige (2) de la vis (1) est forée sur toute sa longueur. 7 - A ligament fixation according to any one of the preceding claims, characterized in that the shank (2) of the screw (1) is drilled along its length.
8 - Dispositif de fixation ligamentaire selon l'une quelconque des revendications précédentes, caractérisé en ce que la vis (1) présente une tête cylindrique (4) à six pans creux. 8 - A ligament fixation according to any one of the preceding claims, characterized in that the screw (1) has a cylindrical head (4) with hexagon socket.
FR9203249A 1992-03-18 1992-03-18 Device for intra-osseous fixation of an artificial ligament Withdrawn FR2688689A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9203249A FR2688689A1 (en) 1992-03-18 1992-03-18 Device for intra-osseous fixation of an artificial ligament

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Application Number Priority Date Filing Date Title
FR9203249A FR2688689A1 (en) 1992-03-18 1992-03-18 Device for intra-osseous fixation of an artificial ligament

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FR2688689A1 true FR2688689A1 (en) 1993-09-24

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FR9203249A Withdrawn FR2688689A1 (en) 1992-03-18 1992-03-18 Device for intra-osseous fixation of an artificial ligament

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US9700291B2 (en) 2014-06-03 2017-07-11 Biomet Sports Medicine, Llc Capsule retractor
US10039543B2 (en) 2014-08-22 2018-08-07 Biomet Sports Medicine, Llc Non-sliding soft anchor
US9955980B2 (en) 2015-02-24 2018-05-01 Biomet Sports Medicine, Llc Anatomic soft tissue repair

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