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WO2021010913A1 - Plaque distale à verrouillage poly-axial pour radius entièrement anatomique conçue pour des quadrupèdes - Google Patents

Plaque distale à verrouillage poly-axial pour radius entièrement anatomique conçue pour des quadrupèdes Download PDF

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Publication number
WO2021010913A1
WO2021010913A1 PCT/TR2020/050288 TR2020050288W WO2021010913A1 WO 2021010913 A1 WO2021010913 A1 WO 2021010913A1 TR 2020050288 W TR2020050288 W TR 2020050288W WO 2021010913 A1 WO2021010913 A1 WO 2021010913A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate
radial
bone
distal radius
angle
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.)
Ceased
Application number
PCT/TR2020/050288
Other languages
English (en)
Inventor
Ari SMIRYAN
Fatih ATAK
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.)
Efa Veterinerlik Hizmetleri Tic Ltd Sti
Original Assignee
Efa Veterinerlik Hizmetleri Tic Ltd Sti
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 Efa Veterinerlik Hizmetleri Tic Ltd Sti filed Critical Efa Veterinerlik Hizmetleri Tic Ltd Sti
Publication of WO2021010913A1 publication Critical patent/WO2021010913A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • 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 or setting implements
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • 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 or setting implements
    • 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
    • A61B17/8052—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded
    • A61B17/8057—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded the interlocking form comprising a thread

Definitions

  • the present invention relates to a fully anatomical poly-axial locking distal radius plate that is fully anatomical, and capable of being locked at different angles, and developed to be used in distal radius fractures of quadrupeds which occur as one of many consequences of traumatic events including road accidents, falling from height, firearm injuries, etc.
  • the present invention particularly relates to a fully anatomical multi-directional locking plate system to be used in the field of medicine and designed in compliance with the bone structure in order to eliminate painful bone deformities as well as joint deformities in distal radius region, stemming from traumatic arthritis, fractures and similar reasons in quadrupeds and particularly in feline and canine animal groups.
  • One of these fracture cases is distal radius fractures.
  • Distal radius and ulna fractures usually occur as a consequence of falling from heights. The fact that soft tissues situated in this region are insufficient for providing the necessary protection increases the risk for these fractures to become compound fractures.
  • Distal radius fractures involve; Salter-Harris fractures, joint fractures, distal metaphyseal and epiphyseal fractures of the distal growth plate of the radius. Stabilization is usually achieved by using bandages, crossed Kirschner wires, external fixators, plates, and lag screw.
  • Prostheses utilized in orthopedic practices may be described as implants placed inside or to the surface of the bone through surgery in order to substitute a diseased joint or a joint which has lost its integrity .
  • prostheses are utilized in the state of the art in order to repair the damage originating from critical bone defects, tumoral or traumatic, and degenerative cases occurring in the distal radius of quadrupeds.
  • a fully anatomical plate that is in full compliance with the anatomical structure of radius, and can increase the movement room of the animal by proportionately distributing biomechanical and static loads on the bone by means of being locked to the bone at different angles, is not available in applications known in the state of the art.
  • cross-pinning method osteosynthesis may be performed by angulating the joint with a 90° angle and inserting Steinmann pin or at least two Kirschner pins crosswise from the distal end of the radius towards the proximal thereof.
  • fixation is tried to be performed by means of two or more fine Kirschner pins inserted from the medial and lateral of the wrist joint to the radius shaft, mandatorily designated points coincide with medial and lateral collateral ligaments on both surfaces as points of entry. This fortifies the possibility of damaging the carpal tunnel nerve line.
  • straight pinning method Another method utilized in distal radius plate applications in the state of the art is straight pinning method.
  • straight pinning method the joint capsule is cut open, and a pin is linearly inserted to the radius shaft on the radius joint surface.
  • Straight pinning method causes synovial fluid to discharge since the joint capsule is cut open for the purpose of gaining access to the pin insertion point.
  • the pinning entry point is directly the joint attrition surface, it fails to absorb the tension factors herein, and accordingly, causes internal fractures to occur in the form of bone blocks. Additionally, it further results in impairment on the joint surface since the pinning entry point is created by puncturing the cartilage tissue .
  • the present invention relates to developing a novel fully anatomical poly-axial locking distal radius plate which ensures bone union in segmental and non-segmental distal radius fractures of quadrupeds by means of fixing the bone in order to eliminate problems existing in the state of the art.
  • the main object of the present invention is to minimize the rate of complications that may potentially develop in the treatment of proximal radius fractures, which include non union, union delay or avascular necrosis by utilizing a fully anatomical distal radius plate that is fully compatible with the distal radius bone of quadrupeds, and to ensure the point load distribution by connecting the inventive fully anatomical distal radius plate to the patient through poly-axial locking.
  • the present invention provides superiority over other surgical treatment methods known in the state of the art by facilitating the implementation of surgical operations for the entirety of segmental or non-segmental fractures occurring in distal radius bone of quadrupeds, minimizing soft and osseous tissue damage, shortening the durations for surgical operations, reducing infection risks and skin irritation of prosthesis to minimum, and allowing for early functional use of the operated extremity. Additionally, the present invention further permits the operated joint to perform its motions early, provides enhanced functional results and responds to all complications.
  • FIGURE 1 illustrates the top view of the radius bone
  • FIGURE 2 illustrates the top view of the radius bone distal radial caput angle.
  • FIGURE 3 illustrates the top view of the radius bone radial condyle horizontal angle
  • FIGURE 4 illustrates the side view of the radius bone radial shaft transition area.
  • FIGURE 5 illustrates the rear view of the radius bone ulnar shaft.
  • FIGURE 6 illustrates the bottom oblique view of the inventive fully anatomical poly-axial locking distal radius plate radial application area
  • FIGURE 7 illustrates the frontal view of the inventive fully anatomical poly-axial locking distal radius plate radial application seat area
  • FIGURE 8 illustrates the radial medial condylar application angle of the inventive fully anatomical poly-axial locking distal radius plate .
  • FIGURE 9 illustrates the side view of the inventive fully anatomical poly-axial locking distal radius plate .
  • FIGURE 10 illustrates the radial shaft translation angle of the inventive fully anatomical poly-axial locking distal radius plate.
  • FIGURE 11 illustrates the ulnar shaft in the inventive fully anatomical poly-axial locking distal radius plate.
  • the present invention is a newly designed "Fully Anatomical Poly-axial Locking Distal Radius Plate” that is both fully anatomical, and may be locked to the dorsal of the distal radius at different angles, and developed to be used in distal radius fractures of quadrupeds occurring as one of many consequences of traumatic events including road accidents, falling from height, firearm injuries, etc.
  • Distal radius bone of quadrupeds along with feline and canine animal groups has a multidirectional and angulated structure.
  • Reasons including; forces generated by the loads being received at the distal radius bone, and variations in gait phases originating from the variableness of the distal radius angularity in animals, and the fact that they carry 60% of their body weight on the forelimb, also including the fact that their orthogonal tread angle is approximately 110° render implementing any other application impossible. Therefore, joint portions that may adjust to all angular variabilities located on the distal radius bone in a fully anatomical manner are required to be able to create a plate that is in full compliance with patients' anatomy.
  • Angular variabilities that are located on the distal radius bone, and are significant for the inventive fully anatomical poly-axial locking distal radius plate are as follows; bone radial application area (1) which is the distance between the outer half-conical form of the bone and the symmetrical form thereof created inside the plate, as illustrated in Figure 1, bone radial application seat area (2) located at the middle bottom surface of the bone as illustrated in Figure 1, bone radial medial condylar application angle (3) which is the curved structure at the bottom right portion of the bone as illustrated in Figure 1, bone distal radial caput angle (4) which is the region angulated outwardly by remaining between the beginning of the bone joint surface and start line of the bone radial shaft translation area (5) as illustrated in Figure 2, bone radial shaft translation angle (5) which is the bone surface form that starts at the point where the bone distal radial caput angle (4) ends, and extends upwardly, as illustrated in Figure 4, bone radial condyle horizontal angle (6) which functions as a joint stopper by being in the middle of
  • Angle and area values that are important for the present invention are as follows; plate radial application area (1A) with a length in a range between 17-23 mm, as illustrated in Figure 6, having measurements thereof corresponding to the bone radial application area (1), plate radial application seat area (2A) with a width in a range between 18.9-25.3 mm, as illustrated in Figure 7, having measurements thereof corresponding to the bone radial application seat area (2), plate radial medial condylar application angle (3A) with an angle in a range between 16.1°-21.8°, as illustrated in Figure 8, having measurements thereof corresponding to the bone radial medial condylar application area (3), plate distal radial caput angle (4A) with an angle in a range between 11.5°-15.5°, as illustrated in Figure 9, having measurements thereof corresponding to the bone distal radial caput angle (4), plate radial shaft translation angle (5A) with an angle in a range between 2.1°-2.8°, as illustrated in Figure 10, having measurements thereof corresponding to the bone
  • poly- axial locking holes (8) situated on the inventive fully anatomical poly-axial locking distal radius plate, as illustrated in Figure 8, are designed to have specific angular hole structures so as to ensure that the passageway of fixed poly-axial screws is compatible with the anteversion of the radial neck.
  • Poly-axial screws inserted at specific angles through poly-axial locking holes (8) pass through target points and ensure fracture fragment compression and/or fixation.
  • Distal end, and body holes of the present invention are supported with an internal cone-shaped circular mechanism that can ensure locking at different angles in cases where locking is desired to be performed by using locking cortical screw.
  • the mechanism has an even-symmetric form together with the locking cone-shaped screw head and is locked by means of at least four grooves on each surface thereof.
  • a fully anatomical contact surface is obtained by means of the present invention which is produced in line with all of aforementioned mean measurement values, and it is locked by means of angulated screws which allow biomechanical load distribution on the axial basis instead of performing single plan screwing in bone fixation procedure. It is ensured that bone achieves a speedy recovery, that postoperative ailments stemming from plate implantation are prevented, and that motions of the radius bone are simulated in the best way possible by means of distributing biomechanical and static forces evenly on the radius bone of the patient.
  • Plate radial application area (1A) and plate radial application seat area (2A) which are located on the inventive fully anatomical poly-axial locking distal radius plate, allow the plate to perform semicircular motion.
  • internal mechanism performs diameter enlargement through the grooved area that permits diameter enlargement.
  • Roughened area on the outer surface of the internal mechanism, and the other roughened area on the internal conical hole area of the plate are interlocked with one another, thereby getting fixed based on the reverse conical principle.
  • Said fixation is designed to be at a height capable of occurring omnidirectionally with an angle of 60°, and full locking is achieved on outer surfaces when the screw head and the mechanism reach to the same height.
  • the inventive fully anatomical poly-axial locking distal radius plate fits perfectly to the bone in a fully compatible manner with anatomical curvatures on the dorsal distal radius bone of the patient, thereby ensuring the anatomy of the patient rapidly returns to its original form.

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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

La présente invention concerne une plaque distale à verrouillage poly-axial pour radius entièrement anatomique, qui est entièrement anatomique, peut être verrouillée à différents angles, et est conçue pour être utilisée dans des fractures distales du radius de quadrupède qui se produisent en tant que l'une de nombreuses conséquences d'événements traumatiques comprenant des accidents de la route, des chutes en hauteur, des lésions à l'arme à feu, etc. La présente invention concerne en particulier un système de plaque à verrouillage multidirectionnel entièrement anatomique destiné à être utilisé dans le domaine de la médecine et conçu en conformité avec la structure osseuse afin d'éliminer les difformités osseuses douloureuses ainsi que les déformations articulaires dans la région distale du radius, provenant d'arthrite traumatique, de fractures et de raisons similaires chez les quadrupèdes et en particulier dans les groupes d'animaux félin et canin.
PCT/TR2020/050288 2019-07-18 2020-04-08 Plaque distale à verrouillage poly-axial pour radius entièrement anatomique conçue pour des quadrupèdes Ceased WO2021010913A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201910706 2019-07-18
TR2019/10706 2019-07-18

Publications (1)

Publication Number Publication Date
WO2021010913A1 true WO2021010913A1 (fr) 2021-01-21

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ID=74210706

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2020/050288 Ceased WO2021010913A1 (fr) 2019-07-18 2020-04-08 Plaque distale à verrouillage poly-axial pour radius entièrement anatomique conçue pour des quadrupèdes

Country Status (1)

Country Link
WO (1) WO2021010913A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114469302A (zh) * 2022-02-11 2022-05-13 张永飞 腱骨联合部位固定器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060004362A1 (en) * 2004-07-02 2006-01-05 Patterson Chad J Distal radius bone plating system with locking and non-locking screws
US20070088360A1 (en) * 2005-09-19 2007-04-19 Orbay Jorge L Bone stabilization system including multi-directional threaded fixation element
WO2012050424A1 (fr) * 2010-10-14 2012-04-19 Sai Yeong Leong Système de placage de radius distal
WO2015100304A1 (fr) * 2013-12-23 2015-07-02 Smith & Nephew, Inc. Plaque pour radius distal
US20180064479A1 (en) * 2016-09-08 2018-03-08 DePuy Synthes Products, Inc. Variable Angle Bone Plate
EP3453350A1 (fr) * 2017-09-06 2019-03-13 Globus Medical, Inc. Systèmes de stabilisation de poignet

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060004362A1 (en) * 2004-07-02 2006-01-05 Patterson Chad J Distal radius bone plating system with locking and non-locking screws
US20070088360A1 (en) * 2005-09-19 2007-04-19 Orbay Jorge L Bone stabilization system including multi-directional threaded fixation element
WO2012050424A1 (fr) * 2010-10-14 2012-04-19 Sai Yeong Leong Système de placage de radius distal
WO2015100304A1 (fr) * 2013-12-23 2015-07-02 Smith & Nephew, Inc. Plaque pour radius distal
US20180064479A1 (en) * 2016-09-08 2018-03-08 DePuy Synthes Products, Inc. Variable Angle Bone Plate
EP3453350A1 (fr) * 2017-09-06 2019-03-13 Globus Medical, Inc. Systèmes de stabilisation de poignet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114469302A (zh) * 2022-02-11 2022-05-13 张永飞 腱骨联合部位固定器
CN114469302B (zh) * 2022-02-11 2024-04-02 张永飞 腱骨联合部位固定器

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