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WO2001070120A2 - Dynamic anti-rotative plate for osteosynthesis - Google Patents

Dynamic anti-rotative plate for osteosynthesis Download PDF

Info

Publication number
WO2001070120A2
WO2001070120A2 PCT/BA2001/000002 BA0100002W WO0170120A2 WO 2001070120 A2 WO2001070120 A2 WO 2001070120A2 BA 0100002 W BA0100002 W BA 0100002W WO 0170120 A2 WO0170120 A2 WO 0170120A2
Authority
WO
WIPO (PCT)
Prior art keywords
plate
bone
dynamic
kuntscher
rotative
Prior art date
Application number
PCT/BA2001/000002
Other languages
French (fr)
Other versions
WO2001070120A3 (en
Inventor
Fahrudin Torlak
Original Assignee
Fahrudin Torlak
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 Fahrudin Torlak filed Critical Fahrudin Torlak
Priority to AU35264/01A priority Critical patent/AU3526401A/en
Publication of WO2001070120A2 publication Critical patent/WO2001070120A2/en
Publication of WO2001070120A3 publication Critical patent/WO2001070120A3/en

Links

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
    • 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
    • A61B17/72—Intramedullary devices, e.g. pins or nails
    • 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
    • A61B17/72—Intramedullary devices, e.g. pins or nails
    • A61B17/7216—Intramedullary devices, e.g. pins or nails for bone lengthening or compression
    • A61B17/7225—Intramedullary devices, e.g. pins or nails for bone lengthening or compression for bone compression

Definitions

  • Dynamic Anti-rotative Plate is used in medicine for the additional osteosynthesis du ⁇ ng the treatment of bone fractures by Kuntscher's nail
  • the goal of this invention is to improve Kuntscher's surgery method
  • the invention is based on following scientific knowledge
  • osteosynthesis with all of those mechanical factors in optimal harmony, will be the most acceptable one That osteosynthesis will be the one making possible the cyclic-axial compression of bone fragments and making impossible bone fragments' distraction and rotation at the same time
  • Kuntscher has applied the nail in the treatment of long tubular bones' fractures in year 1939 He has achieved the cyclic-axial compression of bone fragments but he has not achieved the necessary stabilization of rotations' and distractions' movements Kuntscher and the other authors tried to solve this problem
  • the primer goal of the invention is to provide optimal mechanical conditions for the healing of bone fracture during the treatment of the fracture with Kuntscher's nail That means to make cyclic - axial compression possible and to make rotations' and distractions' movements of the bone fragments impossible at the place of fracture
  • Further goal of the invention is to reduce the healing time for bone fractures and to prevent the healing of the fracture in rotational deformation on technically simple and practicable way
  • the final goal of the invention is to improve Kuntscher's surgery method
  • the longitudinal base of the plate is flat and the transferal base is gently bent down-balloon shape, with concavity on the side that leans on the bone
  • the plate itself is short and narrow plate with individual openings (3), (4), and (5) on the one half of its body (1) used to connect the plate with the bone with the screws.
  • the opening (6) is of wider diameter than diameter of screw's heads.
  • the additional osteosynthesis shall be performed with Dynamic Anti-rotative Plate.
  • the screws used shall be settled in only one cortical.
  • the plate shall be placed on the most suitable place during the surgery.
  • the one half of the plate (1) with individual openings for the screws (3), (4), and (5) shall be placed on one of the bone fragments and firmly fixed by screws. That is the fixed part of the plate.
  • the other half of the plate (2) with longitudinal, oblong opening (6) shall be leaned on the other bone fragment.
  • At least two screws with or without pads shall be placed through longitudinal, oblong opening (6), starting with the furthest place from the fracture's fissure with the condition that the part of the opening (6) the closest to the fracture's fissure has to be available. Since the opening (6) is with wider profile than screws' heads placed through it, the half of the plate (2) is not strongly connected with the bone. That is the dynamic part of the plate.
  • the half of the plate (2) with oblong opening (6) and the screws placed to the bone through it shall be used as the conductor for directing of the compression forces to the fracture's fissure. At the same time it shall make the movements of rotations and distractions of the bone fragments, impossible at the place of the fracture.
  • the plate shall be removed by surgery after the finished procedure.
  • the Dynamic Anti-rotative Plate shall be made from the standard alloy materials, so called medical steel, in different dimensions.
  • the invention brings significant improves comparing to the previously offered solutions for the problem of rotations' and distractions' stability of the bone fragments during the treatment of the bone fracture by Kuntscher's nail. It is technically simple to use it with usual instruments. That makes the usage practical and economical. There is no exposure to X- rays.
  • the bone fracture stabilized in surgery by Kuntscher's nail and Dynamic Anti- rotative Plate makes the time of fracture's healing shorter, with absolute guaranty that the healing will not end with rotational deformation. This confirms economical and medical justifiability of usage of the plate. Beside the usage in healing of the bone fractures on lower extremities, Kuntscher's nail can be used with the Dynamic Anti- rotative Plate in the healing of the bone fractures of humerus.

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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

It is representing the Dynamic Anti-rotative Plate for additional osteosynthesis. The goal of invention is to improve the Kuntscher's surgery method. The construction is based on the scientific findings that cyclic-axial compression stimulates the osteogeny and remodeling of the bone and that the movements of rotations and distraction are slowing the healing time. The technical problem in treatment of the bone fractures by Kuntscher's nail is insufficient possibility to stabilize the rotations' and distractions' movements of the bone fragments. When you use the Dynamic Anti-rotative Plate with the Kuntscher's nail, one half of the plate (1) shall be fixed to one part of the bone's fragment and the other part of the plate (2) with its opening (6) shall be leaned on the other bone's fragment. If the plate is placed properly the most optimal harmony of three important mechanical factors for the neatly healing of the bone fracture shall be achieved. The cyclic-axial compression is possible and at the same time the movements of rotations and distractions are impossible at the place of the fracture. The result of it, is that the healing time is shorter and the healing with rotational deformation of the extremity as result is impossible. Using of this plate together with Kuntscher's nail can be successful in the healing of the bone fractures of humerus too.

Description

DYNAMIC ANTI-ROTATIVE PLATE
TECHNICAL FIELD
Dynamic Anti-rotative Plate is used in medicine for the additional osteosynthesis duπng the treatment of bone fractures by Kuntscher's nail
The goal of this invention is to improve Kuntscher's surgery method
TECHNICAL PROBLEM
Insufficient possibility of stabilization of rotations' and distractions' movements of bone fragments is erasing as technical problem in the treatment of bone fractures by Kuntscher's nail
BACKGROUND ART
The invention is based on following scientific knowledge
1 ) Cyclic-axial compression stimulates osteogeny and remodeling of the bone
2) Movements of rotations and distractions in the area of the fracture are slowing down the healing or healing may end as rotational deformation of the extremities
The osteosynthesis with all of those mechanical factors in optimal harmony, will be the most acceptable one That osteosynthesis will be the one making possible the cyclic-axial compression of bone fragments and making impossible bone fragments' distraction and rotation at the same time
Kuntscher has applied the nail in the treatment of long tubular bones' fractures in year 1939 He has achieved the cyclic-axial compression of bone fragments but he has not achieved the necessary stabilization of rotations' and distractions' movements Kuntscher and the other authors tried to solve this problem
Kuntscher tried to achieve the elastic fixing by extension of the bone marrow canal in year 1952
Herzog introduced de-rotation wires for shinbone in year 1953
Kaessman modified the nail and he tried to achieve measurable compression in year 1966
In year 1968 Kuntscher has added his method fixing the nail with screw only for the upper or lower bone fragment and that resulted with dynamic fixation When he fixed nail on both of bone fragments that resulted with static fixation The analysis of previous solutions results with the conclusion that neither one of solutions can completely provide the optimal mechanical conditions for healing of the bone fractures That means providing of the cyclic - axial compression and at the same time making impossible rotations' and distractions' movements of the bone fragments at the place of fracture
When it is about the plates for osteosynthesis of bones diaphysis, it is necessary to say that all of them are differently named according to the shape, function or authors Purpose of all of the plates is to achieve a rigid osteosynthesis and the plates have nothing similar with "Dynamic Anti-rotative Plate"
DISCLOSURE OF INVENTION
The primer goal of the invention is to provide optimal mechanical conditions for the healing of bone fracture during the treatment of the fracture with Kuntscher's nail That means to make cyclic - axial compression possible and to make rotations' and distractions' movements of the bone fragments impossible at the place of fracture
Further goal of the invention is to reduce the healing time for bone fractures and to prevent the healing of the fracture in rotational deformation on technically simple and practicable way
The final goal of the invention is to improve Kuntscher's surgery method
The usage of the Dynamic Anti-rotative Plate for additional osteosynthesis, as the part of the treatment of bone fracture with Kuntscher's nail, makes cyclic - axial compression of bone fragments possible on simple technical way At the same time, its completely makes rotations' and distractions' movements of the bone fragments impossible at the place of the fracture
All this is possible because of the new invention's construction solution characterized by fixed and dynamic parts
BRIEF DESCRIPTION DRAWING
The sketch of "Dynamic Anti-rotative Plate" is on Fig 1
The longitudinal base of the plate is flat and the transferal base is gently bent down-balloon shape, with concavity on the side that leans on the bone
At the half of the plate's body (1) are individual round openings (3), (4), and (5) Their profile is conical plunged openings
At the half of the plate's body (2) there is one longitudinal oblong opening (6) with vertical and straight walls (7) BEST MODE FOR CARRYING OUT THE INVENTION
I will describe the details of this invention illustrating it on the sketch attached.
You can see "Dynamic Anti-rotative Plate" on the Fig 1. The plate itself is short and narrow plate with individual openings (3), (4), and (5) on the one half of its body (1) used to connect the plate with the bone with the screws. On the other half of the plate (2) there is one longitudinal opening ( 6) with vertical and straight walls. The opening (6) is of wider diameter than diameter of screw's heads.
When it is decided that the bone fracture, stabilized by surgery performed by Kuntscher's Open Method, is not providing enough stability of rotations' and distractions' movements of bone fragments, the additional osteosynthesis shall be performed with Dynamic Anti-rotative Plate.
The screws used shall be settled in only one cortical.
The plate shall be placed on the most suitable place during the surgery. The one half of the plate (1) with individual openings for the screws (3), (4), and (5) shall be placed on one of the bone fragments and firmly fixed by screws. That is the fixed part of the plate. The other half of the plate (2) with longitudinal, oblong opening (6) shall be leaned on the other bone fragment. At least two screws with or without pads shall be placed through longitudinal, oblong opening (6), starting with the furthest place from the fracture's fissure with the condition that the part of the opening (6) the closest to the fracture's fissure has to be available. Since the opening (6) is with wider profile than screws' heads placed through it, the half of the plate (2) is not strongly connected with the bone. That is the dynamic part of the plate.
The half of the plate (2) with oblong opening (6) and the screws placed to the bone through it , shall be used as the conductor for directing of the compression forces to the fracture's fissure. At the same time it shall make the movements of rotations and distractions of the bone fragments, impossible at the place of the fracture.
The plate shall be removed by surgery after the finished procedure.
The goals of this invention are achieved by the new characteristic construction's solutions.
The Dynamic Anti-rotative Plate shall be made from the standard alloy materials, so called medical steel, in different dimensions.
MODE APPLICATION
The invention brings significant improves comparing to the previously offered solutions for the problem of rotations' and distractions' stability of the bone fragments during the treatment of the bone fracture by Kuntscher's nail. It is technically simple to use it with usual instruments. That makes the usage practical and economical. There is no exposure to X- rays. The bone fracture stabilized in surgery by Kuntscher's nail and Dynamic Anti- rotative Plate makes the time of fracture's healing shorter, with absolute guaranty that the healing will not end with rotational deformation. This confirms economical and medical justifiability of usage of the plate. Beside the usage in healing of the bone fractures on lower extremities, Kuntscher's nail can be used with the Dynamic Anti- rotative Plate in the healing of the bone fractures of humerus.

Claims

1. Dynamic Anti-rotative Plate for additional osteosynthesis characterized by openings for fixed and dynamic parts
2. Dynamic Anti-rotative Plate from claim 1 , characterized by round, conical plunged openings on fixed part.
3. Dynamic Anti-rotative Plate from claim 1 , characterized by one longitudinal oblong opening on dynamic part.
4. Dynamic Anti-rotative Plate from claim 3, characterized by longitudinal oblong opening with vertical walls.
5. Dynamic Anti-rotative Plate from claim 3, characterized by longitudinal oblong opening with straight walls.
6. Dynamic Anti-rotative Plate from claims 3, 4 and 5, characterized by longitudinal oblong opening of wider diameter than diameter of the screw's heads placed through it.
7. Dynamic Anti-rotative Plate from claims 3, 4, 5 and 6, characterized by dynamic part of the plate with longitudinal oblong opening possible to slide on the bone only in the direction of the compression accomplishment.
8. Dynamic Anti-rotative Plate from claims 3, 4, 5, 6 and 7, characterized by dynamic part of the plate with longitudinal oblong opening impossible to slide in the direction of the creating of the distraction of the bone fragments.
9. Dynamic Anti-rotative Plate from claims 3, 4, 5, 6, 7 and 8, characterized by dynamic part of the plate with longitudinal oblong opening impossible to slide in the direction of the creating of the rotation.
PCT/BA2001/000002 2000-03-23 2001-02-14 Dynamic anti-rotative plate for osteosynthesis WO2001070120A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU35264/01A AU3526401A (en) 2000-03-23 2001-02-14 Dynamic anti-rotative plate

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BA000557 2000-03-23
BABAP00557A 2000-03-23

Publications (2)

Publication Number Publication Date
WO2001070120A2 true WO2001070120A2 (en) 2001-09-27
WO2001070120A3 WO2001070120A3 (en) 2002-04-04

Family

ID=3839664

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BA2001/000002 WO2001070120A2 (en) 2000-03-23 2001-02-14 Dynamic anti-rotative plate for osteosynthesis

Country Status (2)

Country Link
AU (1) AU3526401A (en)
WO (1) WO2001070120A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2835733A1 (en) * 2002-02-11 2003-08-15 Thierry Begue Osteosynthesis fixing for vertebrae has flat plate with hole to receive threaded shaft of fixing screw and recesses to receive ends of jaws
WO2013173818A1 (en) * 2012-05-18 2013-11-21 Curax Scientific, Llc Distraction and reduction facilitating plate system and method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4403607A (en) * 1980-05-09 1983-09-13 The Regents Of The University Of California Compatible internal bone fixation plate
DE8431616U1 (en) * 1984-10-27 1984-12-20 Howmedica International, Inc. Zweigniederlassung Kiel, 2314 Schönkirchen Plate for osteosynthesis

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2835733A1 (en) * 2002-02-11 2003-08-15 Thierry Begue Osteosynthesis fixing for vertebrae has flat plate with hole to receive threaded shaft of fixing screw and recesses to receive ends of jaws
WO2013173818A1 (en) * 2012-05-18 2013-11-21 Curax Scientific, Llc Distraction and reduction facilitating plate system and method

Also Published As

Publication number Publication date
WO2001070120A3 (en) 2002-04-04
AU3526401A (en) 2001-10-03

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