WO2020111696A2 - Système de fixation du radius distal - Google Patents

Système de fixation du radius distal Download PDF

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Publication number
WO2020111696A2
WO2020111696A2 PCT/KR2019/016283 KR2019016283W WO2020111696A2 WO 2020111696 A2 WO2020111696 A2 WO 2020111696A2 KR 2019016283 W KR2019016283 W KR 2019016283W WO 2020111696 A2 WO2020111696 A2 WO 2020111696A2
Authority
WO
WIPO (PCT)
Prior art keywords
plate
distal radius
fixation system
distal
radius
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/KR2019/016283
Other languages
English (en)
Korean (ko)
Other versions
WO2020111696A3 (fr
Inventor
서장현
박선용
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.)
Jeil Medical Corp
Original Assignee
Jeil Medical Corp
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 Jeil Medical Corp filed Critical Jeil Medical Corp
Publication of WO2020111696A2 publication Critical patent/WO2020111696A2/fr
Publication of WO2020111696A3 publication Critical patent/WO2020111696A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • 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
    • A61B17/8033—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates having indirect contact with screw heads, or having contact with screw heads maintained with the aid of additional components, e.g. nuts, wedges or head covers
    • 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
    • A61B17/84—Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86—Pins or screws or threaded wires; nuts therefor

Definitions

  • the present invention relates to a bone fixation system, and more particularly, to a distal radius fixation system for fracture surgery of a distal radius.
  • the fixing system promotes treatment by compressing fractured bone fragments (Bone fragments, bone fragments) for the treatment of a patient's fracture and pulling the bone fragments in close contact with each other.
  • the fixing system includes a bone plate and a bone screw, and is also referred to as a bone plate system.
  • the plate may include a hole in which an internal thread is formed and a hole in which a female thread is not formed.
  • This screw has a locking screw in which an external thread is formed in the head and a non-locking screw in which the male thread is not formed in the head. Both locking and non-locking screws have a shaft on which male threads are formed to be joined to the bone.
  • the locking screw can fix the angle of the shaft that is coupled to the bone by being coupled to the female screw of the bone plate formed on the head.
  • the non-locking screw can be coupled to the bone at various angles.
  • the radial bone refers to the bone on the lateral side, that is, the outer side of the two bones that make up the lower arm bone.
  • fractures of the distal radius have been increased due to sports activities and the increase of the elderly population. Fractures of the distal radius often result in a fractured fracture or a complex fracture pattern.
  • Surgical treatment of distal radial fractures includes various surgical methods such as percutaneous K-wire fixation, external fixation, external fixation and K-wire fixation, and internal fixation. Internal fixation allows for stable internal fixation and early joint exercise using various bone fixation systems.
  • the distal radius fixation system is Korean Registered Patent No. 10-1711003'Plating structure for distal radius fracture', Korean Patent No. 10-1144067'Anatomical distal radius fracture plate and its use method', Korean Registered Patent No. 10- It can be easily found in many patent documents, such as 0784362'Anatomical metal plate for the treatment of distal radius fractures'.
  • This fixation system of these patent documents is designed in various shapes and structures to be suitable for the treatment of fractures in consideration of the fracture pattern of the distal radius, the degree of dislocation of the fragment, and the stability of the fracture.
  • the contents disclosed in the above patent documents are incorporated herein by reference.
  • distal radius fixation system as described above is used for the treatment of fractures of the distal radius, there is an insufficient problem to overcome the fracture occurring on the anterior fracture surface of the distal radius. That is, with the shape of the bone plate developed so far, there is a very difficult problem to conquer the bone fragment of the anterior fracture surface to the distal radius. Therefore, there is a need for a distal radius fixation system capable of accurately conquering the bone fragments of the anterior fracture surface to the distal radius.
  • An object of the present invention is to provide a new distal radius fixation system capable of meeting the above needs.
  • a distal radial fixation system includes a plurality of holes formed to penetrate the upper and lower surfaces, a first plate segment disposed in the distal radius, and a first plate segment extending to be disposed in the radius A bone plate having two plate segments; A hook plate coupled to be detachably attached to the upper edge of the first plate segment, the hook plate having a plurality of hooks formed to surround and fix the anterior surface of the distal radius; It includes a plurality of bone screws coupled to each of the distal radius and the radius through a plurality of holes.
  • the distal radial fixation system includes: a plurality of lobes extending from an edge of a first plate segment adjacent to an anterior joint surface and having a screw hole; A hole formed in the hook plate to be aligned with any one of the screw holes of the plurality of lobes; A screw coupled to any one of the screw holes of the plurality of lobes through the holes of the hook plate is further provided.
  • the lobe seat is further formed on the lower surface around the hole of the hook plate so that any one of the plurality of lobes can be seated.
  • Distal radius fixation system by fixing the front joint surface by hooks of the hook plate coupled to be detachable to the main plate, by effectively treating the fracture of the front joint surface to increase the therapeutic effect There are useful effects.
  • FIG. 1 is a perspective view showing a distal radius fixation system according to the present invention.
  • FIG. 2 is a plan view showing a distal radius fixation system according to the present invention.
  • FIG 3 is a side view showing a distal radius fixation system according to the present invention.
  • Figure 4 is a bottom perspective view showing the distal radial fixation system according to the present invention.
  • FIG. 5 is a perspective view showing another embodiment of the hook plate in the distal radius fixation system according to the present invention.
  • FIG. 6 is a bottom perspective view showing another embodiment of the hook plate in the distal radius fixation system according to the present invention.
  • FIG. 7 is a perspective view showing another embodiment of the hook plate in the distal radius fixation system according to the present invention.
  • FIG. 8 is a bottom perspective view showing another embodiment of the hook plate in the distal radius fixation system according to the present invention.
  • the distal radius fixation system 10 is a fracture of the distal radius 2, for example, the bone fragment of the anterior joint surface 4 of the distal radius 2
  • a bone plate 20 for the treatment of a so-called anterior barton fracture or an anterior rim fracture.
  • the bone plate 20 is configured to be symmetrical left and right for the treatment of fractures of the right distal radius and the left distal radius.
  • the plate 20 is made of a material having excellent mechanical properties and biocompatibility and biofuntionability, for example titanium, to maintain a stable function in vivo for the treatment of fractures. Can be.
  • the plate 20 may be made of a bioabsorbable material.
  • the bioabsorbable material may be composed of, for example, PLLA (Poly-L-lactic Acid) and calcium component (u-HA), which is a main component of bone.
  • the plate 20 penetrates the upper surface 22, the distal radius 2 and the lower surface 24 disposed toward the radial 6, the upper surface 22 and the lower surface 24
  • a locking hole 28 is provided with a plurality of holes 26.
  • the lower surface 24 is concavely bent with respect to the longitudinal axis so as to better adhere to the distal radius 2 and the radius 6.
  • the plate 20 has a small hole 30 for fixing the K-wire and a translation slot 32 formed for positioning.
  • the holes 26 may include one or more compression holes for fastening the non-locking screws.
  • the compression hole is a hole in which a female screw is not formed, and a non-locking screw is inserted and fixed to the distal radius 2.
  • the K-wire that is, the Kirschner wire, is a steel wire or pin that is embedded in the bones and holds the bones.
  • the present plate 20 is a first plate segment (34) disposed in the distal radius (2), a second extending from one side of the first plate segment (34) to be disposed in the radius (6)
  • a second plate segment (36) is provided.
  • the first plate segment 34 is bent at an angle ⁇ of approximately 25 degrees to the second plate segment 36 to conform to the shape of the distal radius 2 and the radius 6.
  • the angle ⁇ between the first and second plate segments 34 and 36 may be increased or decreased depending on the shape of the distal radius 2 and the radius 6.
  • the first and second plate segments 34 and 36 are connected by a round (38) or curved surface.
  • At least one window bet (Fenestration 40) defining the boundary of the first and second plate segments 34, 36 is formed in the connecting portion of the first and second plate segments 34, 36.
  • the first plate segment 34 is formed into a substantially round triangle according to the shape of the distal radius 2.
  • the second plate segment 36 is formed in a substantially strip shape according to the shape of the radius 6. Both edges where the first plate segment 34 and the second plate segment 36 are connected are connected by a round 42.
  • a concave surface 44 is further formed on the top surface 22 of the first plate segment 34 to prevent rupture of the flexor pollicis longus tendon (FPL).
  • the concave surface 44 is formed to be connected to the front edge of the first plate segment 34.
  • the first plate segment 34 is formed in a strip shape extending at the end of the second plate segment 36 to intersect with the second plate segment 36 such that the plate 20 is generally approximately alphabetic" It may be formed in a T" shape.
  • the bone plate 20 has a plurality of lobes 50 extending from an edge adjacent to the anterior articular surface 4 of the distal radius 2.
  • the lobes 50 or projections are formed in a substantially rounded rectangle.
  • the lobes 50 may be formed in a circular shape.
  • the lobes 50 are connected to the edge of the plate 20 by ribs (Rib: 52).
  • Screw holes 54 are formed in each of the lobes 50.
  • the screw hole 54 may be formed as a locking hole. It is illustrated that the lobes 50 are formed so as to be disposed adjacent to the inside of the distal radius 2, but the number of lobes 50 may be increased as needed.
  • the distal radial fixation system 10 is provided with a hook plate (Hook plate: 60) coupled to be detachable to the bone plate (20).
  • the hook plate 60 is formed in a substantially strip shape that can be disposed along the edge of the first plate segment 34.
  • the hook plate 60 is formed to be aligned with any one or more of the screw holes 54 of the lobes 50 and the front joint surface 4 of the distal radius 2 to be fixed. It has a plurality of hooks 64 spaced from each other and extending downward from the edge.
  • Each of the hooks 64 is formed in an arc shape in a form such as a purse or a rake so as to be in close contact with the front joint surface 4.
  • a lobe seat 66 is formed on a lower surface around the hole 62 so that any one of the lobes 50 can be seated.
  • the screw 58 is fastened to the screw hole 54 of any one of the lobes 50 through the hole 62.
  • the distal radius fixation system 10 comprises a plurality of bone screws 70 for securing the bone plate 20 to each of the distal radius 2 and the radius 6.
  • the present screws 70 are composed of a locking screw 72.
  • the locking screw 72 has a head 74 and a shaft 76 extending along the axial direction from the head 74.
  • the first male screw 78 is formed in the head 74 so as to be coupled to each of the locking holes 28.
  • the second male screw 80 is formed on the shaft 76 so as to be coupled to the distal radius 2 or the radius 6.
  • a flute 82 is formed at the distal end of the shaft 76 to enable self-tapping or self-drilling.
  • the present screw 70 may be composed of a non-locking screw.
  • the lower surface 24 of the first plate segment 34 is disposed to be in close contact with the distal radius 2
  • the lower surface of the second plate segment 36 (24) is arranged to be in close contact with the radial (6).
  • the locking screws 72 are fastened to the distal radius 2 and the radius 6 through the locking holes 26.
  • the hook plate 60 is disposed at the edge of the plate 20 so that the hooks 64 surround and support the front joint surface 4.
  • the screw 58 is one of the hole 62 of the hole 62 and the lobe 50 of the hook plate 60 to better conquer the anterior joint surface 4 in consideration of bone anatomy. 54).
  • the hooks 64 securely fix the distal radius 2 by enclosing and supporting the anterior joint surface 4, thereby increasing the accuracy of conquest, and effectively improving the treatment effect by efficiently performing fracture treatment of the distal radius 2 Can be.
  • the plate 20 is coupled to the distal radius 2 and the radius 6 by fastening of the locking screw 72, the iliac flexion tendon lies on the concave surface 44 and contacts the plate 20 seen The rupture by is prevented.
  • the hook plate may be configured in various forms to be suitable for the treatment of fractures of the anterior fracture surface.
  • 5 and 6 show another embodiment of the hook plate in the distal radius fixation system according to the present invention. 5 and 6, the same configuration of the hook plate 60A of another embodiment and the hook plate 60 described above is denoted by the same reference numerals, and detailed descriptions thereof are omitted.
  • the hook plate 60A of another embodiment extends downward from the edge at a distance from each other so that the two hooks 64 wrap around and fix the anterior articular surface 4 of the distal radius 2.
  • FIG. 7 and 8 shows another embodiment of the hook plate in the distal radius fixation system according to the present invention.
  • the same configuration of the hook plate 60B and the hook plate 60 described above is denoted by the same reference numerals in other embodiments, and detailed descriptions thereof will be omitted.
  • the hook plate 60B extends downward from the edge at a distance from each other so that the five hooks 64 wrap around and fix the anterior articular surface 4 of the distal radius 2.
  • the hook plate 60B of another embodiment has two holes 62 formed to fasten the screws 68 to each of the screw holes 54 of the two lobes 50.

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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)

Abstract

Un système de fixation du radius distal pour le traitement de fractures du radius distal est divulgué. La présente invention consiste en une plaque d'ostéosynthèse, une plaque à crochets et une pluralité de vis d'ostéosynthèse. La plaque d'ostéosynthèse comporte une pluralité de trous qui sont formés pour permettre la pénétration dans les surfaces supérieure et inférieure ; un premier segment de plaque disposé sur le radius distal, et un deuxième segment de plaque s'étendant depuis le premier segment de plaque de façon à être disposé sur le radius. La plaque à crochets est accouplée de façon détachable à un bord de la surface supérieure du premier segment de plaque, et comporte une pluralité de crochets formés pour fixer une surface d'articulation antérieure du radius distal en l'entourant. La vis d'ostéosynthèse est accouplée au radius distal et au radius par le biais des trous. Selon la présente invention, la surface d'articulation antérieure est entourée et fixée par les crochets de la plaque à crochets, qui est accouplée de façon détachable à la plaque d'ostéosynthèse, si bien que les effets du traitement peuvent être améliorés par un traitement efficace des fractures de la surface d'articulation antérieure.
PCT/KR2019/016283 2018-11-26 2019-11-25 Système de fixation du radius distal Ceased WO2020111696A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2018-0146918 2018-11-26
KR1020180146918A KR20200062405A (ko) 2018-11-26 2018-11-26 원위 요골 고정 시스템

Publications (2)

Publication Number Publication Date
WO2020111696A2 true WO2020111696A2 (fr) 2020-06-04
WO2020111696A3 WO2020111696A3 (fr) 2020-10-15

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PCT/KR2019/016283 Ceased WO2020111696A2 (fr) 2018-11-26 2019-11-25 Système de fixation du radius distal

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WO (1) WO2020111696A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025243229A1 (fr) * 2024-05-21 2025-11-27 DePuy Synthes Products, Inc. Plaque de fixation osseuse

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102730295B1 (ko) * 2022-06-08 2024-11-15 주식회사 도이프 일체형 스크류를 구비한 본 고정 시스템

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2412590B (en) * 2002-11-19 2006-05-17 Acumed Llc Adjustable bone plates
US8317842B2 (en) * 2007-11-30 2012-11-27 Biomet C.V. Distal tibia plating system
US10603090B2 (en) * 2011-09-06 2020-03-31 Skeletal Dynamics, Inc. Fracture fixation plate, system and methods of use
US20130060251A1 (en) * 2011-08-31 2013-03-07 University Of Maryland, Baltimore Proximal humerus greater tuberosity hook-arm clip
KR101772533B1 (ko) * 2016-06-07 2017-08-29 김정엽 걸개형 뼈 고정 모듈

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025243229A1 (fr) * 2024-05-21 2025-11-27 DePuy Synthes Products, Inc. Plaque de fixation osseuse

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Publication number Publication date
KR20200062405A (ko) 2020-06-04
WO2020111696A3 (fr) 2020-10-15

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