WO1995017129A1 - Guide de coupe femorale - Google Patents
Guide de coupe femorale Download PDFInfo
- Publication number
- WO1995017129A1 WO1995017129A1 PCT/FR1994/001392 FR9401392W WO9517129A1 WO 1995017129 A1 WO1995017129 A1 WO 1995017129A1 FR 9401392 W FR9401392 W FR 9401392W WO 9517129 A1 WO9517129 A1 WO 9517129A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- block
- guide according
- cuts
- anterior
- femur
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/025—Joint distractors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/14—Surgical saws ; Accessories therefor
- A61B17/15—Guides therefor
- A61B17/154—Guides therefor for preparing bone for knee prosthesis
- A61B17/155—Cutting femur
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/025—Joint distractors
- A61B2017/0268—Joint distractors for the knee
Definitions
- the invention relates to devices for placing a knee prosthesis, comprising a femoral implant and a tibial implant
- Numerous devices are known that are shaped to allow tibial and femoral cuts to be made so as to position the constituent elements of the prosthesis while respecting the biomechanical axes of the knee.
- the object of the invention is to remedy these drawbacks in a simple, safe, effective and rational manner.
- the problem that the invention proposes to solve is to ensure the different femoral cuts taking into account the ligament tension.
- a femoral cutting guide has been designed and developed which comprises a single block for supporting, positioning and guiding the cutting members, having means and arrangements capable of creating tension. ligament and to ensure, in this state, the distal cuts in the extended position and the anterior and posterior cuts, in the knee flexion position
- the means for tensioning the block are constituted by support pads capable of cooperating with the resected parts of the tibia, said pads being mounted with displacement capacity by being subject to said block by means of elastic members capable of creating a pushing force
- the block cooperates with a bent rod engaged in a medullary hole of the femur and resting on the anterior face of the metaphysis of said femur.
- the block cooperates with a rectilinear rod engaged in a central-medullary hole of the femur.
- the cutting guide also has the features
- the block includes a goniometer to take account of the femoral valgus and correct, if necessary, the sections,
- the block has arrangements capable of ensuring its fixing at the level of the lower femoral epiphysis
- the block has slots arranged at different heights and 5 5 and capable of ensuring the anterior and posterior distal cuts.
- FIG. 1 is a perspective view and schematic showing the main elements of the cutting guide according to the invention
- Figure 2 is a schematic view showing the positioning of the apparatus in knee extension, to perform distal cuts in a state of ligament tension.
- FIG. 3 is a plan view corresponding to FIG. 2.
- Figure 4 is a schematic view showing the positioning of the apparatus in knee flexion, to perform the anterior and posterior cuts in the state of ligament tension
- Figure 5 is a side view corresponding to Figure 4
- the cutting guide comprises a support and positioning block (1) shaped to ensure the different femoral cuts in the plane of the forehead and the forehead, in a state of ligament tension, respectively in the extended position and bending.
- the block (1) has means (2) able to perform this function of ligament tensioning
- these means (2) are constituted by support pads (2a) (2b), able to cooperate with the resected parts of the tibia (T)
- pads (2a) (2b) are mounted to slide freely relative to the block, for example by means of a system of complementary slides (3a-4a) (3b-4b), by being subject to said block, by means of at least one elastic member (5)
- This elastic member can be constituted by a spring engaged in the thickness of the block (1), in a state of compression
- the elastic member (5) can also be mounted in combination with the system of slides complementary (3a-4a) (3b- 4b)
- the spring (5) has the effect of creating a pushing force on the support member (2) and, consequently, of ensuring tension between the block ( 1) and said member (2)
- the block (1) has lateral slits (1 a) (1 b), arranged at different heights, for making the distal cuts and the anterior and posterior cuts, as indicated in the following of the description.
- Figures 2 and 3 show the use of the femoral cutting guide to make distal cuts, the knee being in the extended position.
- the block (1) is placed in abutment on the anterior face of the metaphysis of the femur (F).
- a bent rod (6) is engaged in a central medullary hole formed from the inter-condylar notch.
- This bent rod (6) has a part (6a) capable of being engaged in a positioning hole (1 c) of the block (1) ( Figure 2).
- the bent rod (6) is executed in different dimensions, corresponding to the main sizes of the femur. This rod (6) therefore maintains the block, while leaving it lateral freedom.
- the tensioning member (2) is placed in abutment on the tibial cuts (T1). It therefore appears, in this extended position, that the ligament tensioning is carried out automatically under the effect of the pushing force exerted by the elastic member (5).
- Distal cuts are performed by any known and appropriate means, using one of the corresponding series of slots (1b).
- the block (1) incorporates a device of the goniometer type to indicate if the cut is good, taking into account the femoral valgus which is of the order of 5 ° for men and 7 ° for women. If it appears that the positioning is not satisfactory, we then proceed to a ligament release before cutting
- the knee is placed in flexion ( Figures 4 and 5).
- the block (1) is placed in abutment on the distal cut previously made while being maintained in this position, by means of a central-medullary guide (7) (FIG. 4).
- the block (1) may have arrangements (8) for fixing it at the level of the distal cut
- the tensioning member (2) is placed in abutment on the tibial cuts (T1), the spring (5) automatically ensuring, under its pushing force, the ligament tensioning II then suffices to use one of the different slots (1 a) (1 b) to make the anterior and posterior cuts
- the sliding system (3a-3b) (4a-4b) of the support member (2), relative to the block (1), has locking means adjustable in position, such as notches
- the hole (1 c) cooperating with the center-medullary guide (7) may have an eccentric system to perfect the alignment in the event of poor centering
- the means for performing the tibial cuts are not described because they do not form part of the specific object of the invention and are produced by any known and appropriate means
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Molecular Biology (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Physical Education & Sports Medicine (AREA)
- Transplantation (AREA)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Prostheses (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP95902810A EP0684790A1 (fr) | 1993-12-20 | 1994-11-30 | Guide de coupe femorale |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9315661A FR2713916B1 (fr) | 1993-12-20 | 1993-12-20 | Guide de coupe fémorale. |
FR93/15661 | 1993-12-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995017129A1 true WO1995017129A1 (fr) | 1995-06-29 |
Family
ID=9454410
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1994/001392 WO1995017129A1 (fr) | 1993-12-20 | 1994-11-30 | Guide de coupe femorale |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0684790A1 (fr) |
FR (1) | FR2713916B1 (fr) |
WO (1) | WO1995017129A1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996020656A1 (fr) * | 1994-12-30 | 1996-07-11 | Jbs S.A. | Prothese de genou a glissement |
DE10113069C1 (de) * | 2001-03-15 | 2002-11-14 | Eska Implants Gmbh & Co | System zur Rekonstruktion der natürlichen Torquiertheit zwischen dem natürlichen Knie und dem Bereich der natürlichen Hüfte |
WO2012113735A1 (fr) * | 2011-02-21 | 2012-08-30 | Christoph Weber | Bloc de réduction d'essai spécifique au patient |
CN111493970A (zh) * | 2020-04-27 | 2020-08-07 | 北京市隆福医院 | 一种可调型脊柱内镜下椎间盘的锯性切除装置 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106264657B (zh) * | 2016-11-16 | 2018-11-27 | 黄勇 | 骨科膝关节平衡间隙截骨定位系统 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4567886A (en) * | 1983-01-06 | 1986-02-04 | Petersen Thomas D | Flexion spacer guide for fitting a knee prosthesis |
US4646729A (en) * | 1982-02-18 | 1987-03-03 | Howmedica, Inc. | Prosthetic knee implantation |
EP0380451A2 (fr) * | 1989-01-11 | 1990-08-01 | G. CREMASCOLI S.p.A. | Appareil pour la résection de fémurs et la mise en place de prothèses du genou |
FR2679766A1 (fr) * | 1991-07-30 | 1993-02-05 | Sophia Med | Dispositif de pose d'une prothese du genou. |
-
1993
- 1993-12-20 FR FR9315661A patent/FR2713916B1/fr not_active Expired - Fee Related
-
1994
- 1994-11-30 WO PCT/FR1994/001392 patent/WO1995017129A1/fr not_active Application Discontinuation
- 1994-11-30 EP EP95902810A patent/EP0684790A1/fr not_active Ceased
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4646729A (en) * | 1982-02-18 | 1987-03-03 | Howmedica, Inc. | Prosthetic knee implantation |
US4567886A (en) * | 1983-01-06 | 1986-02-04 | Petersen Thomas D | Flexion spacer guide for fitting a knee prosthesis |
EP0380451A2 (fr) * | 1989-01-11 | 1990-08-01 | G. CREMASCOLI S.p.A. | Appareil pour la résection de fémurs et la mise en place de prothèses du genou |
FR2679766A1 (fr) * | 1991-07-30 | 1993-02-05 | Sophia Med | Dispositif de pose d'une prothese du genou. |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996020656A1 (fr) * | 1994-12-30 | 1996-07-11 | Jbs S.A. | Prothese de genou a glissement |
DE10113069C1 (de) * | 2001-03-15 | 2002-11-14 | Eska Implants Gmbh & Co | System zur Rekonstruktion der natürlichen Torquiertheit zwischen dem natürlichen Knie und dem Bereich der natürlichen Hüfte |
WO2012113735A1 (fr) * | 2011-02-21 | 2012-08-30 | Christoph Weber | Bloc de réduction d'essai spécifique au patient |
CN103491882A (zh) * | 2011-02-21 | 2014-01-01 | C·韦伯 | 患者特异重定位试块 |
CN111493970A (zh) * | 2020-04-27 | 2020-08-07 | 北京市隆福医院 | 一种可调型脊柱内镜下椎间盘的锯性切除装置 |
CN111493970B (zh) * | 2020-04-27 | 2021-08-20 | 北京市隆福医院 | 一种可调型脊柱内镜下椎间盘的锯性切除装置 |
Also Published As
Publication number | Publication date |
---|---|
FR2713916A1 (fr) | 1995-06-23 |
EP0684790A1 (fr) | 1995-12-06 |
FR2713916B1 (fr) | 1996-02-09 |
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