FR2626165A1 - Blade/plate for tibial osteotomy - Google Patents

Blade/plate for tibial osteotomy Download PDF

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Publication number
FR2626165A1
FR2626165A1 FR8801095A FR8801095A FR2626165A1 FR 2626165 A1 FR2626165 A1 FR 2626165A1 FR 8801095 A FR8801095 A FR 8801095A FR 8801095 A FR8801095 A FR 8801095A FR 2626165 A1 FR2626165 A1 FR 2626165A1
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Prior art keywords
plate
blade
osteotomy
fixed
type
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FR8801095A
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French (fr)
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FR2626165B1 (en
Inventor
Christian Mansat
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SPORT SARL
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SPORT SARL
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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
    • A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
    • A61B17/8095—Wedge osteotomy devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/064—Surgical staples, i.e. penetrating the tissue
    • A61B17/0642—Surgical staples, i.e. penetrating the tissue for bones, e.g. for osteosynthesis or connecting tendon to bone
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/064—Surgical staples, i.e. penetrating the tissue
    • A61B2017/0647—Surgical staples, i.e. penetrating the tissue having one single leg, e.g. tacks

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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)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Neurology (AREA)
  • Rheumatology (AREA)
  • Surgical Instruments (AREA)

Abstract

Blade/plate of the type comprising a blade 2 intended to be inserted into the tibial joint, and a plate 3 which bears against the upper part of the tibia to which it is fixed by a screw, characterised in that it furthermore comprises a slide 8 which can move in vertical translation on the said plate and which fits, when the blade/plate is fixed, between the two osteotomy surfaces, and holds them separated from each other in the desired position. Application: tibial osteotomy.

Description

La présente invention a pour objet une lane-p#a#-#e pour ostéotomie tibiale, du type comportant une lame destinée à être introduite au niveau de l'articulation tibiale et une plaque venant prendre appui contre la partie supérieure du tibia auquel elle est fixée par une ris. The present invention relates to a lane-p # a # - # e for tibial osteotomy, of the type comprising a blade intended to be introduced at the level of the tibial joint and a plate coming to bear against the upper part of the tibia to which it is fixed by a reef.

On connaît déjà des lame-plaques de ce type, largement utilisées en ostéotomie tibiale. We already know plate-blades of this type, widely used in tibial osteotomy.

L'ostéotomie tibiale permet par excision d'un coin osseux au niveau du rebord glénoidien de corriger une déviation angulaire dans le cadre par exemple d'un genu-varum avec arthrose fémoro tibiale interne. The tibial osteotomy allows excision of a bony wedge at the level of the glenoid rim to correct an angular deviation within the framework for example of a genu-varum with internal femoro tibial arthritis.

Lors de cette intervention, après excision du coin osseux qui va permettre le rattrapage angulaire recherché, l'ouverture est maintenue par un greffon cortico-spongieux. During this intervention, after excision of the bony wedge which will allow the desired angular catching up, the opening is maintained by a cortico-cancellous graft.

Le défaut de cette technique est que du fait du tassement progressif du greffon interposé entre les deux surfaces d'ostéotomie, on risque de perdre la correction recherchée, ou en tout cas de ne pas obtenir parfaitement le résultat escompté. The drawback of this technique is that due to the progressive compaction of the graft interposed between the two osteotomy surfaces, there is a risk of losing the desired correction, or in any case of not obtaining the expected result perfectly.

La présente invention a pour but de remédier à cet inconvénient. The object of the present invention is to remedy this drawback.

Conformément à l'invention, on propose une lame-plaque pour ostéotomie, du type comportant une lame destinée à être introduite au niveau de l'articulation tibiale et une plaque venant prendre appui contre la partie supérieure du tibia auquel elle est fixée par une vis, caractérisée en ce qu'elle comporte en outre un curseur mobile en translation verticale sur ladite plaque et venant s'insérer, lorsque la lame-plaque est fixée, entre les deux surfaces d'ostéotomie et les maintenant écartées l'une de l'autre en la position désirée. According to the invention, there is provided a plate-blade for osteotomy, of the type comprising a blade intended to be introduced at the level of the tibial joint and a plate coming to bear against the upper part of the tibia to which it is fixed by a screw. , characterized in that it further comprises a slider movable in vertical translation on said plate and coming to be inserted, when the plate-blade is fixed, between the two osteotomy surfaces and keeping them spaced apart from one other in the desired position.

Avantageusement, le praticien disposera d'un jeu de curseurs d'épaisseurs variables par exemple de millimètre en millimètre, un millimètre d'épaisseur de curseur correspondant à un degré d'angle de correction. Advantageously, the practitioner will have a set of sliders of variable thicknesses, for example from millimeter to millimeter, one millimeter of slider thickness corresponding to a degree of correction angle.

De manière préférée, les curseurs seront de forme générale parallèlépipédique, les surfaces venant en appui contre les surfaces d'ostéotomie étant gaufrées pour augmenter le maintien. Preferably, the sliders will be of generally parallelepiped shape, the surfaces coming to bear against the osteotomy surfaces being embossed to increase the support.

On comprendra mieux l'invention en référence aux dessins annexés dans lesquels - la figure 1 est une vue en perspective d'une lame-plaque conforme à l'invention avec son curseur - la figure 2 est une reproduction d'une lame-plaque dejà implantée. The invention will be better understood with reference to the appended drawings in which - FIG. 1 is a perspective view of a plate blade according to the invention with its cursor - FIG. 2 is a reproduction of a plate blade already established.

La lame-plaque (1) conforme à l'invention comporte essentiel lement - une lame (2) destinée à être introduite au niveau de l'articulation tibiale, - une plaque (3) qui est fixée au tibia par une vis la traversant selon un alésage (4). The plate-blade (1) according to the invention essentially comprises - a blade (2) intended to be introduced at the level of the tibial joint, - a plate (3) which is fixed to the tibia by a screw passing through it according to a bore (4).

Ceci est connu en soi. This is known per se.

La lame comporte sur son extrémité frontale deux dents (5,6) ainsi qu'une zone centrale biseautée (7) facilitant la pénétration à force dans l'os. The blade has on its front end two teeth (5,6) as well as a bevelled central zone (7) facilitating forced penetration into the bone.

Selon l'invention, on prévoit également des curseurs du type de (8) mobiles en translation sur la plaque (3), c' est-à-dire pouvant étre disposés par coulissement par le praticien à n'importe quel endroit par rapport à la plaque. Pour cela on prévoiera sur les chants latéraux de la plaque deux rainures de guidage (9), qui coopèrent avec deux rebords correspondants (10) de chaque curseur. According to the invention, there are also provided sliders of the type of (8) movable in translation on the plate (3), that is to say which can be arranged by sliding by the practitioner at any location relative to the plaque. For this, provision will be made on the side edges of the plate for two guide grooves (9), which cooperate with two corresponding edges (10) of each slider.

Les curseurs seront de structure généralement parallèlépipédique, les surfaces supérieure (11) et inférieure (12) étant paralleles au plan de la lame (2). The sliders will be of generally parallelepipedic structure, the upper (11) and lower (12) surfaces being parallel to the plane of the blade (2).

Les surfaces (11) et (12) sont munies de picots, par exemple gaufrées, pour assurer un meilleur contact avec les surfaces d'ostéotomie. The surfaces (11) and (12) are provided with pins, for example embossed, to ensure better contact with the osteotomy surfaces.

On prévoiera avec une lame agrafe, un jeu de curseurs de manière telle que l'importance de l'ouverture interne entre les surfaces d'ostéotomie, c'est-à-dire l'épaisseur du curseur, soit en millimètres l'équivalent de l'angle de correction calculé en degrés. With a staple blade, use a set of cursors so that the size of the internal opening between the osteotomy surfaces, i.e. the thickness of the cursor, is in millimeters the equivalent of the correction angle calculated in degrees.

On a reproduit pour une meilleure compréhension une radiographie, en figure 2, d'une articulation corrigée avec la lame-plaque selon l'invention.  A radiography, in FIG. 2, of a joint corrected with the plate-blade according to the invention has been reproduced for a better understanding.

Claims (7)

REVENDICATIONS 1. Lame-plaque du type comportant une lame !2) destinée à autre introduite au niveau de l'articulation tibiale et une plaque < 3j venant prendre appui contre la partie supérieure du tibia auquel elle est fix par une vis, caractérisée en ce qu'elle comporte en outre un curseur mobile en translation verticale sur ladite plaque et venant s'insérer, lorsque la lame-plaque est fixée, entre les deux surfaces a'ostéotomie et les maintenant écartées l'une de l'autre en la position désirée.1. Plate-blade of the type comprising a blade! 2) intended for another inserted at the level of the tibial joint and a plate <3j coming to bear against the upper part of the tibia to which it is fixed by a screw, characterized in that '' it further comprises a slider movable in vertical translation on said plate and being inserted, when the plate-blade is fixed, between the two osteotomy surfaces and keeping them spaced from one another in the desired position . 2. Lame-plaque pour ostéotomie selon la revendication 1, caractérisée en ce que la lame comporte sur son extrémité frontale deux dents (5,6) ainsi qu'une zone centrale biseautée (7) facilitant la pénétration à force dans l'os.2. Plate-blade for osteotomy according to claim 1, characterized in that the blade comprises on its front end two teeth (5,6) as well as a bevelled central zone (7) facilitating the forced penetration into the bone. 3. Lame-plaque selon l'une quelconque des revendications 1 et 2, caractérisée en ce qu'elle comporte des curseurs du type de '8) mobiles en translation sur la plaque (3), pouvant être disposés par coulissement par le praticien a n'importe quel endroit par rapport à la plaque.3. Plate blade according to any one of claims 1 and 2, characterized in that it comprises cursors of the type of '8) movable in translation on the plate (3), which can be arranged by sliding by the practitioner a anywhere relative to the plate. 4. Lame-plaque selon la revendication 3, caractérisée en ce que sont ménagées sur les chants latéraux de la plaque deux rainures de guidage (9), qui coopèrent avec deux rebords correspondants (lO) de chaque curseur. 4. Blade-plate according to claim 3, characterized in that are formed on the side edges of the plate two guide grooves (9), which cooperate with two corresponding flanges (lO) of each slider. 5. Lame-plaque selon l'une quelconque des revendications 1 à 4, caractérisée en ce que les curseurs sont de structure généralement parallélépipédique, les surfaces supérieure (11) et inférieure (12) étant parallèles au plan de la lame (2).5. Blade-plate according to any one of claims 1 to 4, characterized in that the sliders are of generally parallelepipedal structure, the upper (11) and lower (12) surfaces being parallel to the plane of the blade (2). 6. Lame-plaque selon l'une quelconque des revendications 1 à 5, caractérisée en ce que les surfaces (11) et (12) sont munies de picots telles que gaufrées, pour assurer un meilleur contact avec les surfaces d'ostéotomie.6. Plate blade according to any one of claims 1 to 5, characterized in that the surfaces (11) and (12) are provided with pins such as embossed, to ensure better contact with the osteotomy surfaces. 7. Lame-plaque selon l'une quelconque des revendications 1 à 6, caractérisée en ce que l'épaisseur du curseur soit en millimètre l'équivalent de l'angle de correction calculé en degrés. 7. Plate blade according to any one of claims 1 to 6, characterized in that the thickness of the cursor is in millimeters the equivalent of the correction angle calculated in degrees.
FR8801095A 1988-01-27 1988-01-27 PLATE BLADE FOR TIBIAL OSTEOTOMY Expired - Fee Related FR2626165B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8801095A FR2626165B1 (en) 1988-01-27 1988-01-27 PLATE BLADE FOR TIBIAL OSTEOTOMY

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8801095A FR2626165B1 (en) 1988-01-27 1988-01-27 PLATE BLADE FOR TIBIAL OSTEOTOMY

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FR2626165A1 true FR2626165A1 (en) 1989-07-28
FR2626165B1 FR2626165B1 (en) 1997-06-06

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991003985A1 (en) * 1989-09-21 1991-04-04 Australian Defence Industries Ltd. Osteotomy plate
FR2668921A1 (en) * 1990-11-12 1992-05-15 Biostab Clip plate for osteosynthesis
FR2676353A1 (en) * 1991-05-15 1992-11-20 Biomecanique Integree Tibial osteotomy plate or the like
US5391169A (en) * 1991-12-13 1995-02-21 Mcguire; David A. Patellar tendon harvester
FR2785519A1 (en) * 1998-11-10 2000-05-12 Advanced Technical Fabrication Osteosynthesis plate has interchangeable wedge mounted on plate with faces engaging opposed faces of osteotomy

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH373517A (en) * 1959-09-01 1963-11-30 Maurice E Dr Med Mueller Device for fixing the joint head on the femur
FR2064530A6 (en) * 1969-09-22 1971-07-23 Descamps Louis
FR2231189A7 (en) * 1973-05-23 1974-12-20 Down Bros Mayer Phelps Ltd Surgical implant for bone fracture site - is in form of staple whose implanted legs are moved towards each other by nut

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH373517A (en) * 1959-09-01 1963-11-30 Maurice E Dr Med Mueller Device for fixing the joint head on the femur
FR2064530A6 (en) * 1969-09-22 1971-07-23 Descamps Louis
FR2231189A7 (en) * 1973-05-23 1974-12-20 Down Bros Mayer Phelps Ltd Surgical implant for bone fracture site - is in form of staple whose implanted legs are moved towards each other by nut

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991003985A1 (en) * 1989-09-21 1991-04-04 Australian Defence Industries Ltd. Osteotomy plate
FR2668921A1 (en) * 1990-11-12 1992-05-15 Biostab Clip plate for osteosynthesis
FR2676353A1 (en) * 1991-05-15 1992-11-20 Biomecanique Integree Tibial osteotomy plate or the like
US5391169A (en) * 1991-12-13 1995-02-21 Mcguire; David A. Patellar tendon harvester
FR2785519A1 (en) * 1998-11-10 2000-05-12 Advanced Technical Fabrication Osteosynthesis plate has interchangeable wedge mounted on plate with faces engaging opposed faces of osteotomy

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Publication number Publication date
FR2626165B1 (en) 1997-06-06

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