WO2022255970A1 - Plaque de fixation de fracture périprothétique du fémur - Google Patents

Plaque de fixation de fracture périprothétique du fémur Download PDF

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Publication number
WO2022255970A1
WO2022255970A1 PCT/TR2022/050475 TR2022050475W WO2022255970A1 WO 2022255970 A1 WO2022255970 A1 WO 2022255970A1 TR 2022050475 W TR2022050475 W TR 2022050475W WO 2022255970 A1 WO2022255970 A1 WO 2022255970A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate
fixation
femur
bone
fractures
Prior art date
Application number
PCT/TR2022/050475
Other languages
English (en)
Inventor
Ozhan PAZARCI
Original Assignee
Cumhuriyet Universitesi Rektorlugu
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
Priority claimed from TR2021/009151 external-priority patent/TR2021009151A2/tr
Application filed by Cumhuriyet Universitesi Rektorlugu filed Critical Cumhuriyet Universitesi Rektorlugu
Publication of WO2022255970A1 publication Critical patent/WO2022255970A1/fr

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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
    • A61B17/8085—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates with pliable or malleable elements or having a mesh-like structure, e.g. small strips
    • 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
    • A61B17/8061—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates specially adapted for particular bones

Definitions

  • the invention relates to a plate that is used for stable fixation of the fractures that occurred after hip or knee prosthesis such that it encompasses the entire femur.
  • the first problem encountered with known implants used in the fixation of periprosthetic fractures is that they have not been specifically developed for these fractures. Implants developed for the treatment of fractures caused by primary trauma make stable fracture fixation difficult.
  • the technical problem in the fixation of Periprosthetic fractures which may occur traumatically due to causes such as falling or hitting, is the lack of enough space for screw fixation since there is a prosthesis inside the bone. Cable fixation can be performed over the plate in various implants developed for this problem. However, sometimes these can also be insufficient in the extension along the entire femur. Also, fixation of the trochanter major, which is the uppermost part of the femur bone, may be insufficient.
  • Injuries in the hip and knee joint can occur as well as femoral fractures.
  • the patient can be followed for a given period without subjecting them to loads.
  • most femoral fractures necessitate surgery.
  • three different methods are applied. Firstly, a nail is placed in the bone marrow, secondly, a plate is placed on the bone, and thirdly, treatment is provided with external fixation devices in open fractures. It is seen that various developments have been made in the art regarding the fracture fixation plate apparatus.
  • Chinese patent document CN101716093A which is the state of the art, discloses a plate used to fixate the femoral internal system and femoral comminuted fractures.
  • the upper end of said plate is made of steel and has three arms. Also, each arm is equipped with a screw mounting hole to mount the bone screw.
  • An object of this invention is to realize a femur periprosthetic fracture fixation plate developed for a more accurate fixation of periprosthetic fractures.
  • Another object of this invention is to realize a femur periprosthetic fracture fixation plate with a flexible plate upper end which can be shaped according to the bone.
  • the femur periprosthetic fracture fixation plate realized to achieve the object of this invention is shown in the attached figures.
  • Figure 1 Front (A) view of the plate according to the invention.
  • Figure 2 Side (B) view of the plate according to the invention.
  • the invention relates to a plate that is developed for fixation of the fractures occurred after hip or knee prosthesis such that it encompasses the entire femur, comprising
  • the upper end (2) of the femur periprosthetic fracture fixation plate according to the invention allows more suitable bone fixation since it can be shaped according to the bone, as well as allowing bending and twisting. Also, it allows sufficient fixation of the upper end (2) of the bone with the upper end (2) thereof being made of material that can be cut when required, and by allowing delivering the locked or unlocked screws.
  • the apparatus according to the invention provides a fixation capability by extending to the entire femur bone (thigh bone).
  • the screw holes (5) are designed eccentrically to increase the fixation strength and allow delivering the screws at different angles. That is, as can be seen from the figures of the plate, the screw holes are arranged on the right and left of the centre line. In this way, it is intended for the screws, that allow delivery at different angles, to have more bone adhesion.
  • the femur periprosthetic fracture fixation plate according to the invention is designed for the effective treatment of patients suffering from fractures around the hip or knee prosthesis.
  • the fracture site is reached by making thigh incisions during the operation.
  • the invention is positioned on the outer (lateral) surface of the thigh bone (femur). Once the adjustment is performed according to the bone shape, it can be fixated through the desired screw hole (5) by means of a screw or cable.
  • the plate design enables the fixation of the fractures around both hip and knee prostheses.
  • the femur periprosthetic fracture fixation plate according to the invention enables bone fixation over the entire length of the femur.
  • the femur periprosthetic fracture fixation plate according to the invention can show anatomical adaptation since its shape and inclination is designed by taking the shape and inclination of the femur into consideration.
  • the plate has an inclination of 2-4 degrees so that it can be placed according to the bone shape.

Landscapes

  • 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)
  • Prostheses (AREA)
  • Surgical Instruments (AREA)

Abstract

L'invention concerne une plaque utilisée pour la fixation stable d'une fracture qui s'est produite après la pose d'une prothèse de hanche ou de genou de telle sorte qu'elle englobe l'ensemble du fémur. L'objectif de la plaque selon l'invention est de permettre une fixation plus précise dans des fractures périprothétiques et de réaliser une plaque de fixation de fracture périprothétique du fémur qui permet une fixation osseuse plus appropriée puisque l'extrémité supérieure de la plaque (2) est flexible et peut être façonnée en fonction de l'os.
PCT/TR2022/050475 2021-06-03 2022-05-25 Plaque de fixation de fracture périprothétique du fémur WO2022255970A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2021009151 2021-06-03
TR2021/009151 TR2021009151A2 (tr) 2021-06-03 Femur peri̇prosteti̇k kirik tespi̇t plaği

Publications (1)

Publication Number Publication Date
WO2022255970A1 true WO2022255970A1 (fr) 2022-12-08

Family

ID=84323632

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2022/050475 WO2022255970A1 (fr) 2021-06-03 2022-05-25 Plaque de fixation de fracture périprothétique du fémur

Country Status (1)

Country Link
WO (1) WO2022255970A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070043367A1 (en) * 2005-07-25 2007-02-22 Steven Lawrie Orthopaedic appliances
WO2007082004A2 (fr) * 2006-01-11 2007-07-19 Acumed Llc Plaque osseuse avec cache
US20100234896A1 (en) * 2006-08-15 2010-09-16 Kai-Uwe Lorenz Trochanter retention plate
EP3335654A1 (fr) * 2016-12-15 2018-06-20 Stryker European Holdings I, LLC Essai de plaque osseuse
EP3443918A1 (fr) * 2017-08-14 2019-02-20 Stryker European Holdings I, LLC Plaque de fémur
CN111281517A (zh) * 2020-03-30 2020-06-16 北京市春立正达医疗器械股份有限公司 髋关节骨折钢板

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070043367A1 (en) * 2005-07-25 2007-02-22 Steven Lawrie Orthopaedic appliances
WO2007082004A2 (fr) * 2006-01-11 2007-07-19 Acumed Llc Plaque osseuse avec cache
US20100234896A1 (en) * 2006-08-15 2010-09-16 Kai-Uwe Lorenz Trochanter retention plate
EP3335654A1 (fr) * 2016-12-15 2018-06-20 Stryker European Holdings I, LLC Essai de plaque osseuse
EP3443918A1 (fr) * 2017-08-14 2019-02-20 Stryker European Holdings I, LLC Plaque de fémur
CN111281517A (zh) * 2020-03-30 2020-06-16 北京市春立正达医疗器械股份有限公司 髋关节骨折钢板

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