FR2631540A1 - Lumbosacral spine plate - Google Patents

Lumbosacral spine plate Download PDF

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Publication number
FR2631540A1
FR2631540A1 FR8806981A FR8806981A FR2631540A1 FR 2631540 A1 FR2631540 A1 FR 2631540A1 FR 8806981 A FR8806981 A FR 8806981A FR 8806981 A FR8806981 A FR 8806981A FR 2631540 A1 FR2631540 A1 FR 2631540A1
Authority
FR
France
Prior art keywords
lumbosacral
spine plate
pedicles
lumbosacral spine
arthrodesis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
FR8806981A
Other languages
French (fr)
Inventor
Levon Doursounian
Patrick Henry
Philippe Lapresle
Claude Laville
Gilles Missenard
Richard Rossin
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR8806981A priority Critical patent/FR2631540A1/en
Publication of FR2631540A1 publication Critical patent/FR2631540A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7055—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant connected to sacrum, pelvis or skull

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Neurology (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Neurosurgery (AREA)
  • Prostheses (AREA)

Abstract

Device for arthrodesis between the lumbosacral pedicles. The device makes it possible, using a set of bent plates with holes of different separations, to lock the lumbosacral pedicles, using longitudinal splines. This device according to the invention is intended for locking the lumbosacral articulations.

Description

DESCRIPTION
La présente invention concerne des plaques pour arthrodèses lombo-sacrées. DESCRIPTION
The present invention relates to plates for lumbosacral arthrodesis.

Les arthrodèses lombo sacrées par voie postérieure peuvent être instrumentées par des plaques fixes dans les pédicules de L5 et de Si en cas d'arthrodèse
L5 sacrum ou dans les pédicules de L4-L5-S1, en cas d'arthrodèse L4 sacrum.Posterior lumbosacral arthrodesis can be instrumented by fixed plates in the L5 and Si pedicles in the event of arthrodesis
L5 sacrum or in the pedicles of L4-L5-S1, in case of L4 sacrum arthrodesis.

Si ltécart interpédiculaire L4-L5 parait relativement constant, l'écart entre le pédicule de L5 et de S1, varie de façon importante, ceci en raison de la discopathie dégénérative L5 sacrum et du pincement discal qui s'ensuit.If the interpedicular gap L4-L5 seems relatively constant, the difference between the pedicle of L5 and S1 varies significantly, this due to the degenerative disc disease L5 sacrum and the disc nip which follows.

Il nous est donc apparu logique de réaliser des plaques de différentes tailles permettant de s'adapter à l'écart interpédiculaire L5-Si. It therefore seemed logical to us to make plates of different sizes to adapt to the L5-Si interpedicular gap.

Nous avons donc voulu réaliser plusieurs tailles de plaques variables pour les arthrodèses L5 sacrum et plusieurs tailles de plaques variables pour les arthrodèses L4 sacrum, en faisant varier uniquement l'écart entre les pédicules L5-S1 (fig. 2 / -1-) qui est respectivement de 19 rïrn, de 22 tïrn, de 25 rmi et de 27 rini. We therefore wanted to produce several variable plate sizes for L5 sacrum arthrodesis and several variable plate sizes for L4 sacrum arthrodesis, by varying only the difference between the L5-S1 pedicles (fig. 2 / -1-) which is 19 rïrn, 22 tïrn, 25 rmi and 27 rini respectively.

Il s'agit de plaques en titane dont la longueur est variable, la largeur est d'environ 1 cm et l'épaisseur d'environ 7 mn. Ces plaques sont légèrement courbées (fig. 1) pour s'adapter à la lordose lombo-sacr#e. La face inférieure présente une série de stries longitudinales à un pas régulier (fig. 3 / -2-)
Ces stries permettent une meilleure adhérence à l'os et permettent de limiter, le temps de la fusion osseuse, les mouvements d'inclinaison du rachis à droite ou#à gauche.These are titanium plates whose length is variable, the width is approximately 1 cm and the thickness approximately 7 min. These plates are slightly curved (fig. 1) to adapt to lumbosacral lordosis. The underside has a series of longitudinal streaks at a regular pitch (fig. 3 / -2-)
These streaks allow better adhesion to the bone and limit the time of bone fusion, the tilting movements of the spine to the right or # to the left.

Ces plaques présentent deux, trois ou quatre trous. Ces trous font environ 5 ïrrn de diamètre à la partie inférieure et 8 rini à la partie supérieure permettant d'accepter la tête à vis. These plates have two, three or four holes. These holes are about 5 ïrrn in diameter at the bottom and 8 rini at the top to accept the screw head.

Claims (3)

REVENDICATIONS 1/ Plaque à rachis lombo sacré caractérisée par des rainures arrondies à pas régulier (fig. 3).1 / Sacred lumbosacral spine plate characterized by rounded grooves with regular pitch (fig. 3). 2/ Plaque à rachis lombo sacré caractérisée par une forme courbe s'adaptant parfaitement aux pédicules lombo sacrées, (fiv. 1).2 / Sacred lumbosacral spine plate characterized by a curved shape which adapts perfectly to the lumbosacral pedicles, (fiv. 1). 3/ Plaque à rachis lombo sacré caractérisée par une distance variable entre les trous de fixation selon les pédicules lombo sacrées (fig. 2). 3 / Sacred lumbosacral spine plate characterized by a variable distance between the fixation holes according to the lumbosacral pedicles (fig. 2).
FR8806981A 1988-05-20 1988-05-20 Lumbosacral spine plate Withdrawn FR2631540A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8806981A FR2631540A1 (en) 1988-05-20 1988-05-20 Lumbosacral spine plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8806981A FR2631540A1 (en) 1988-05-20 1988-05-20 Lumbosacral spine plate

Publications (1)

Publication Number Publication Date
FR2631540A1 true FR2631540A1 (en) 1989-11-24

Family

ID=9366618

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8806981A Withdrawn FR2631540A1 (en) 1988-05-20 1988-05-20 Lumbosacral spine plate

Country Status (1)

Country Link
FR (1) FR2631540A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993007823A1 (en) * 1991-10-26 1993-04-29 Nicolas Daniel Reis Internal ilio-lumbar fixation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993007823A1 (en) * 1991-10-26 1993-04-29 Nicolas Daniel Reis Internal ilio-lumbar fixation
US5593407A (en) * 1991-10-26 1997-01-14 Reis; Nicolas D. Internal ilio-lumbar fixator

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