FR2483214A1 - Implant for osteosynthesis of femoral head - has diaphysial plate extended above inclined blade to accommodate screws passing through blade - Google Patents
Implant for osteosynthesis of femoral head - has diaphysial plate extended above inclined blade to accommodate screws passing through blade Download PDFInfo
- Publication number
- FR2483214A1 FR2483214A1 FR8012468A FR8012468A FR2483214A1 FR 2483214 A1 FR2483214 A1 FR 2483214A1 FR 8012468 A FR8012468 A FR 8012468A FR 8012468 A FR8012468 A FR 8012468A FR 2483214 A1 FR2483214 A1 FR 2483214A1
- Authority
- FR
- France
- Prior art keywords
- blade
- neck
- osteosynthesis
- plate
- diaphysial
- 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.)
- Granted
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical 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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/74—Devices for the head or neck or trochanter of the femur
- A61B17/742—Devices for the head or neck or trochanter of the femur having one or more longitudinal elements oriented along or parallel to the axis of the neck
- A61B17/746—Devices for the head or neck or trochanter of the femur having one or more longitudinal elements oriented along or parallel to the axis of the neck the longitudinal elements coupled to a plate opposite the femoral head
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
Description
La présente invention est relative à des perfectionnements apportés aux dispositifs destinés à réaliser l'ostéosynthèse du col fémoral. The present invention relates to improvements made to devices intended to perform osteosynthesis of the femoral neck.
Les systèmesexistant actuellement pour traiter une cassure du col fémoral sont constitués par une plaque diaphysaire c'est-à-dire qui coopère avec la surface latérale du fémur et par une lame plate ou cylindrique qui traverse le col du fémur jusqu'à la tête fémorale. Cette lame ou clou est enfoncé dans le col puis la plaque diaphysaire est vissée par rapport au fémur de manière à immobiliser le dispositif considéré. On conçoit aisément que si la cassure partage en deux le col fémoral, la lame ou le clou des dispositifs connus ne permet pas toujours de réunir de manière satisfaisante les deux parties cassées après réduction de la fracture. Il est fréquent que les chirurgiens soient obligés de placer des vis supplémentaires destinées à réaliser une ostéosynthèse de bonne qualité et permettant en particulier un serrage efficace des deux parties brisées du col fémoral. The systems currently existing for treating a break in the femoral neck consist of a diaphyseal plate, that is to say which cooperates with the lateral surface of the femur and by a flat or cylindrical blade which crosses the neck of the femur up to the femoral head. . This blade or nail is driven into the neck and the diaphyseal plate is screwed relative to the femur so as to immobilize the device considered. It is easily understood that if the break divides the femoral neck in two, the blade or the nail of the known devices does not always allow the two broken parts to be brought together satisfactorily after reduction of the break. It is common for surgeons to be forced to place additional screws intended to perform a good quality osteosynthesis and in particular allowing effective tightening of the two broken parts of the femoral neck.
Les perfectionnements qui font l'objet de la présente invention visent à remédier à ces inconvénients et à permettre la réalisation d'un dispositif d'ostéosynthèse du col fémoral qui réponde mieux que jusqu'a présent aux divers desiderata de la pratique. The improvements which are the subject of the present invention aim to remedy these drawbacks and to allow the production of an osteosynthesis device of the femoral neck which responds better than so far to the various wishes of the practice.
A cet effet la plaque diaphysaire est prolongée vers le haut d'une longueur substantielle de manière qu'elle coopère avec la majeure partie du grand trochanter. Ce prolongement est pourvu de trous fraisés dans lesquels on peut engager les vis propres à venir coopérer avec le col fémoral en vue de pénétrer jusque dans la tête du fémur. Suivant une disposition avantageuse les vis traversent des perforations ménagées dans la lame de manière qu'elles prennent appui sur le bord des perforations en vue de constituer une armature rigide triangulée du col fémoral brisé. To this end, the diaphyseal plate is extended upwards by a substantial length so that it cooperates with most of the greater trochanter. This extension is provided with countersunk holes in which one can engage the clean screws to come to cooperate with the femoral neck in order to penetrate into the head of the femur. According to an advantageous arrangement, the screws pass through perforations made in the blade so that they bear on the edge of the perforations in order to constitute a triangular rigid frame of the broken femoral neck.
Grâce à cet agencement on obtient les avantages usuels des dispositifs comportant une plaque diaphysaire et une lame pénétrant dans le col fémoral mais en plus on améliore la réduction des fractures en resserrant les fragments brisés par l'action des vis. De plus l'armature réalisée par la lame et les vis est extrêmement résistante du fait du double appui de chaque vis l'un par l'intérmédiaire de sa tête par rapport au prolongement de la plaque diaphysaire et l'autre par appui sur le bord des perforations de la lame. Enfin la répartition des contraintes entre les vis et la lame minimise les risques de rupture entre cette lame et la plaque diaphysaire. Thanks to this arrangement, the usual advantages of devices comprising a diaphyseal plate and a blade penetrating into the femoral neck are obtained, but in addition the reduction of fractures is improved by tightening the fragments broken by the action of the screws. In addition, the armature produced by the blade and the screws is extremely resistant due to the double support of each screw, one by the intermediary of its head relative to the extension of the diaphyseal plate and the other by pressing on the edge. blade perforations. Finally, the distribution of stresses between the screws and the blade minimizes the risks of rupture between this blade and the diaphyseal plate.
On observe en outre que la mise en place d'un dispositif suivant l'invention est aussi aisée que celui d'un système classique a plaque sans prolongement.It is further observed that the installation of a device according to the invention is as easy as that of a conventional plate system without extension.
Le dessin annexé, donné à titre d'enxemple permettra de mieux comprendre l'invention, les caractéristiques qu'elle présente et les avantages qu'alla est suceptible de procurer
Fig. 1 est une vue en perspective d'un dispositif d'ostéosynthèse établi conformément à l'invention.The appended drawing, given by way of example, will make it possible to better understand the invention, the characteristics it exhibits and the advantages that alla is likely to provide.
Fig. 1 is a perspective view of an osteosynthesis device established in accordance with the invention.
Fig. 2 montre un dispositif suivant l'invention utilisé pour une ostéosynthèse d'un col fémoral. Fig. 2 shows a device according to the invention used for osteosynthesis of a femoral neck.
Le dispositif suivant l'invention représenté est fig. 1 et affecté de la référence générale 1 comprend essentiellement une plaque diaphysaire 2 dont l'une des faces est solidaire d'une lame 3, la plaque 2 comportant un prolongement vertical 4. En fait la plaque diaphysaire 2 et son prolongement 4 forment un unique élément dont la forme est telle que sa face tournée vers la lame 3 peut coopérer étroitement avec la forme de la partie supérieure correspondante du fémur. On observe l'obliquité de la lame 3 par rapport au plan général des éléments 2 et 4 et sa forme en U avec biseau a son extrémité libre pour faciliter son entrée dans l'os. The device according to the invention shown is fig. 1 and assigned the general reference 1 essentially comprises a diaphyseal plate 2, one of the faces of which is integral with a blade 3, the plate 2 having a vertical extension 4. In fact the diaphyseal plate 2 and its extension 4 form a single element whose shape is such that its face facing the blade 3 can cooperate closely with the shape of the corresponding upper part of the femur. We observe the obliquity of the blade 3 relative to the general plane of the elements 2 and 4 and its U shape with bevel at its free end to facilitate its entry into the bone.
La plaque diaphysaire 2 est pourvue d'un certain nombre de trous fraisés 5 dans lesquels s'engagent les vis 6 (fig. 2) destinées à assembler la prothèse au fémur après que la lame ait été enfilée dans le col fémoral. The diaphyseal plate 2 is provided with a certain number of countersunk holes 5 into which the screws 6 (fig. 2) engage, intended to assemble the prosthesis to the femur after the blade has been threaded into the femoral neck.
La lame 3 comporte deux perforations oblongues référencées 7 et 8, tandis que le prolongement de la plaque 2 est muni de deux trous fraisés 9 et 10. The blade 3 has two oblong perforations referenced 7 and 8, while the extension of the plate 2 is provided with two countersunk holes 9 and 10.
Lorsque le dispositif 1 est mis en place comme indiqué plus haut, ctest-à-dire sa lame 3 engagée dans le col fémoral jusqu'a la tête du fémur et la plaque diaphysaire 2 appliquée contre le fémur, l'on engage dans les trous 9 et 10 des vis 11 respectivement 12 dont la longueur est telle que leurs extrémités libres viennent se placer pour au moins l'une d'entre elles dans la tête fémorale après avoir traversé les perforations 7 et 8. La longueur des perforations oblongues 7 et 8 est telle qu'an fonction de l'inclinaison des vis 10 et 11 donnée par l'orientation du prolongement 4 de la plaque diaphysaire 2, le corps de ces vis coopère avec au moins l'un des deux bords de ces perforations de manière à constituer un ensemble rigide triangulé constitué par lesdites vis, la lame 3 et le prolongement 4 ce qui entraine une solidité particulièrement importante de l'ensemble du col fémoral et de la tête du fémur. When the device 1 is put in place as indicated above, that is to say its blade 3 engaged in the femoral neck up to the head of the femur and the diaphyseal plate 2 applied against the femur, one engages in the holes 9 and 10 of the screws 11 respectively 12 whose length is such that their free ends are placed for at least one of them in the femoral head after having passed through the perforations 7 and 8. The length of the oblong perforations 7 and 8 is such that depending on the inclination of the screws 10 and 11 given by the orientation of the extension 4 of the diaphyseal plate 2, the body of these screws cooperates with at least one of the two edges of these perforations so to constitute a triangulated rigid assembly formed by said screws, the blade 3 and the extension 4 which results in a particularly significant solidity of the entire femoral neck and the head of the femur.
Il doit d'ailleurs être entendu que la description qui précède n'a été donnée qu'a titre d'exemple et qu'elle ne limite nullement le domaine de l'invention dont on ne sortirait pas en remplaçant les détails d'exécution décrits par tous autres équivalents. It should also be understood that the foregoing description has been given only by way of example and that it in no way limits the field of the invention from which one would not depart by replacing the execution details described by all other equivalents.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8012468A FR2483214A1 (en) | 1980-05-30 | 1980-05-30 | Implant for osteosynthesis of femoral head - has diaphysial plate extended above inclined blade to accommodate screws passing through blade |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8012468A FR2483214A1 (en) | 1980-05-30 | 1980-05-30 | Implant for osteosynthesis of femoral head - has diaphysial plate extended above inclined blade to accommodate screws passing through blade |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2483214A1 true FR2483214A1 (en) | 1981-12-04 |
FR2483214B1 FR2483214B1 (en) | 1984-11-16 |
Family
ID=9242725
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8012468A Granted FR2483214A1 (en) | 1980-05-30 | 1980-05-30 | Implant for osteosynthesis of femoral head - has diaphysial plate extended above inclined blade to accommodate screws passing through blade |
Country Status (1)
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FR (1) | FR2483214A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1986004798A1 (en) * | 1985-02-25 | 1986-08-28 | Nguyen Jean Pierre | Centro-medullary nail blade |
FR2580489A2 (en) * | 1985-04-22 | 1986-10-24 | Guyen Jean Pierre N | Centromedullary plate/nail |
FR2606268A1 (en) * | 1986-11-07 | 1988-05-13 | Landos Applic Orthopediques Fs | Device for osteosynthesis of the neck of the femur |
US4915092A (en) * | 1985-11-05 | 1990-04-10 | Interprinderea Industria Technico-Medicala | Flexible implants for stable flexible osteosynthesis of femoral tibia fractures and working instrumentation |
FR2718947A1 (en) * | 1994-04-21 | 1995-10-27 | Caffiniere De Jean Yves | Nail and plate fixing for fractured upper end of femur |
WO2008047524A1 (en) * | 2006-10-17 | 2008-04-24 | Shu Nakamura | Fracture fixator for femoral trochanteric fracture |
WO2009095451A1 (en) * | 2008-01-29 | 2009-08-06 | Tornier | Device and surgical method for reducing a fracture between the epiphyseal head and the diaphysis of a long bone, in particular a proximal humeral fracture |
EP2108322A1 (en) * | 2008-04-09 | 2009-10-14 | José Costa Martins | Trochanteric contention/compression plate |
US8545539B2 (en) | 2008-05-12 | 2013-10-01 | Edwin E. Spencer | Proximal humeral fracture reduction and fixation device |
US10117687B2 (en) | 2015-03-25 | 2018-11-06 | Pier Giovanni Menci | Intramedullary nail for the treatment of fractures of the long bones |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2874691A (en) * | 1957-02-08 | 1959-02-24 | Christopher A Mason | Femoral nail |
FR1462646A (en) * | 1965-01-01 | 1966-12-16 | Raphael Salama Dr | Nail plate for pertrochanteric femoral fractures |
FR1493247A (en) * | 1965-09-17 | 1967-08-25 | Nat Res Dev | implanted items used in hip surgery to reduce and fix fractures |
FR2068103A5 (en) * | 1969-11-27 | 1971-08-20 | Halloran William |
-
1980
- 1980-05-30 FR FR8012468A patent/FR2483214A1/en active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2874691A (en) * | 1957-02-08 | 1959-02-24 | Christopher A Mason | Femoral nail |
FR1462646A (en) * | 1965-01-01 | 1966-12-16 | Raphael Salama Dr | Nail plate for pertrochanteric femoral fractures |
FR1493247A (en) * | 1965-09-17 | 1967-08-25 | Nat Res Dev | implanted items used in hip surgery to reduce and fix fractures |
FR2068103A5 (en) * | 1969-11-27 | 1971-08-20 | Halloran William |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1986004798A1 (en) * | 1985-02-25 | 1986-08-28 | Nguyen Jean Pierre | Centro-medullary nail blade |
FR2580489A2 (en) * | 1985-04-22 | 1986-10-24 | Guyen Jean Pierre N | Centromedullary plate/nail |
US4915092A (en) * | 1985-11-05 | 1990-04-10 | Interprinderea Industria Technico-Medicala | Flexible implants for stable flexible osteosynthesis of femoral tibia fractures and working instrumentation |
FR2606268A1 (en) * | 1986-11-07 | 1988-05-13 | Landos Applic Orthopediques Fs | Device for osteosynthesis of the neck of the femur |
FR2718947A1 (en) * | 1994-04-21 | 1995-10-27 | Caffiniere De Jean Yves | Nail and plate fixing for fractured upper end of femur |
JP2008100020A (en) * | 2006-10-17 | 2008-05-01 | Shu Nakamura | Internal fracture fixation tool for femoral trochanteric fracture |
WO2008047524A1 (en) * | 2006-10-17 | 2008-04-24 | Shu Nakamura | Fracture fixator for femoral trochanteric fracture |
US8137350B2 (en) | 2006-10-17 | 2012-03-20 | Shu Nakamura | Fracture fixator for femoral trochanteric fracture |
WO2009095451A1 (en) * | 2008-01-29 | 2009-08-06 | Tornier | Device and surgical method for reducing a fracture between the epiphyseal head and the diaphysis of a long bone, in particular a proximal humeral fracture |
EP2108322A1 (en) * | 2008-04-09 | 2009-10-14 | José Costa Martins | Trochanteric contention/compression plate |
FR2930424A1 (en) * | 2008-04-25 | 2009-10-30 | Tornier Sas | DEVICE FOR REDUCING A FRACTURE BETWEEN THE EPIPHYSARY HEAD AND THE DIAPHYSIS OF A LONG BONE, IN PARTICULAR A PROXIMAL HUMERAL FRACTURE. |
US8545539B2 (en) | 2008-05-12 | 2013-10-01 | Edwin E. Spencer | Proximal humeral fracture reduction and fixation device |
US9113973B2 (en) | 2008-05-12 | 2015-08-25 | Edwin E. Spencer | Method of reduction of proximal humeral fracture |
US10117687B2 (en) | 2015-03-25 | 2018-11-06 | Pier Giovanni Menci | Intramedullary nail for the treatment of fractures of the long bones |
Also Published As
Publication number | Publication date |
---|---|
FR2483214B1 (en) | 1984-11-16 |
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