WO2021015690A1 - Fully anatomical poly-axial locking distal tibia plate designed for quadrupeds - Google Patents

Fully anatomical poly-axial locking distal tibia plate designed for quadrupeds Download PDF

Info

Publication number
WO2021015690A1
WO2021015690A1 PCT/TR2020/050289 TR2020050289W WO2021015690A1 WO 2021015690 A1 WO2021015690 A1 WO 2021015690A1 TR 2020050289 W TR2020050289 W TR 2020050289W WO 2021015690 A1 WO2021015690 A1 WO 2021015690A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate
distal tibia
angle
distal
bone
Prior art date
Application number
PCT/TR2020/050289
Other languages
French (fr)
Inventor
Ari SMIRYAN
Fatih ATAK
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
Priority claimed from TR2019/11102 external-priority patent/TR201911102Y/en
Application filed by Efa Veterinerlik Hizmetleri Tic. Ltd. Sti. filed Critical Efa Veterinerlik Hizmetleri Tic. Ltd. Sti.
Publication of WO2021015690A1 publication Critical patent/WO2021015690A1/en

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical 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
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/80Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
    • A61B17/8061Cortical 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 present invention relates to a fully anatomical poly-axial locking distal tibia plate that is formed according to bone anatomy, fully anatomical, capable of being locked at different angles, and designed to be used in distal tibia 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 tibia 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 tibia fractures.
  • Minimally Invasive Percutaneous Osteosynthesis technique namely "M.I.P.O.”
  • M.I.P.O Minimally Invasive Percutaneous Osteosynthesis technique
  • bridging-tibia plate applications in the state of the art performed for correcting the segmental tibia fractures occurring in the distal tibia of quadrupeds
  • M.I.P.O Minimally Invasive Percutaneous Osteosynthesis technique, namely "M.I.P.O.” technique which is employed in operations involving bridging-tibia plate applications in the state of the art performed for correcting the segmental tibia fractures occurring in the distal tibia of quadrupeds, provides a mean surgery duration of 1 hour. Prolongation of surgery durations increases the infection occurrence risk. Furthermore, shorter surgery durations mean that the patient, who is affected by a severe trauma, will remain under the influence of anesthesia for shorter periods, and accordingly, the incidence rate for potential complications will be reduced.
  • prostheses are utilized in the state of the art in order to repair the damage originating from tumoral or traumatic, and degenerative cases.
  • a fully anatomical plate that is in full compliance with the anatomical structure of tibia, and can increase the movement radius 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 .
  • Another method employed in distal tibia plate applications performed in the state of the art is the plate method. Although approximating the joint surface is desired in the aforementioned plate method, this particular method implies trying to grab the fractured distal fragment by a single screw, thereby preventing the distal fragment from remaining stable.
  • Cross pinning method implies trying to fixate the ankle joint over the medial and lateral directions thereof towards the direction of the tibial shaft by utilizing two or more fine Kirschner pins, however, since points which are mandatorily designated as entry points, coincide with medial and lateral collateral ligaments on both surfaces, it is highly like to damage the fibular nerve line.
  • the requirement of using fine and flexible pins dictates performing a splinting process subsequent to fixation, and this process induces joint contracture.
  • pin surfaces that remain outside of the bone surface generate granulation tissues as said pin surfaces rub against peripheral tissues of the ankle joint. Formation of granulation tissues is a crucial factor that affects the joint mobility negatively.
  • straight pinning method involves cutting the joint capsule open and linearly inserting a pin to the tibial shaft on the surface of tarso-tibial joint.
  • Straight pinning method causes discharging of the synovial fluid because of the fact that joint capsule is cut open in order to gain 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. Meanwhile, since linear angulation cannot be achieved, an exit has to be performed to the dorsal skin region through tibia which locks the joint temporarily.
  • the present invention relates to developing a novel fully anatomical poly-axial locking distal tibia plate which ensures bone union in segmental and non-segmental distal tibia 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 including non-union, union delay or avascular necrosis by using a fully anatomical distal tibia plate that is compatible with the distal tibia of quadrupeds, and to ensure the point load distribution by connecting the inventive fully anatomical distal tibia plate to the patient by means of poly-axial locking.
  • Another object of the present invention is to balance the load distribution by performing a fixing process with at least three screws at the distal tibia medial condyle region, thereby aligning the entirety of loads received in the direction of the knee joint and/or hip joint with cortex and performing a linear load transfer thereof through balanced cortex strength by means of the fully anatomical structure of the present invention.
  • This provides a reduction in loads being received on the screw and/or the plate.
  • Virtually conducted biomechanical studies of the present invention have demonstrated that all screws as well as all surfaces of the plate are exposed to equal tension forces.
  • Yet another object of the present invention is to shorten post operative hospitalization period and to prevent joint contracture in animals through the poly-axial locking screw system that provides full load distribution without imposing any effects and inducing any changes in the joint structure as well as in the functionality of other systemic structures by means of the method employed and the inventive fully anatomical poly-axial locking distal tibia plate utilized.
  • muscular atrophies can also be prevented. Being away from the neural lines allows for avoiding potential nerve damages.
  • shortening durations for application and surgeries also makes substantial contributions to shortening the length of treatment periods.
  • the entirety of loads being received at the angulated line of distal tibia will be distributed at the upper fragment in all gait phases of the quadrupeds, and the integrity of the segmental and non- segmental fractures occurring in the distal tibia will be achieved in a much faster and efficient manner in view of the fact that hypervariability of the gait phases of quadrupeds and load forces that are being received due to the fact that their upright treading angle is 120°, and that they carry 40% of their body weight on their hindlimbs, and that distal tibia angularities of quadrupeds vary greatly.
  • inventive fully anatomical poly-axial locking distal tibia plate and components thereof designed in compliance with the bone structure of quadrupeds, and to be used in the reconstruction of defects that occur in distal tibia bones of quadrupeds for any reason are illustrated in annexed figures, wherein;
  • FIGURE 1 illustrates the top view of the tibia bone
  • FIGURE 2 illustrates the tibia bone distal tibia condylar translation angle.
  • FIGURE 3 illustrates the tibia bone medial distal tibia condylar angle.
  • FIGURE 4 illustrates the tibia bone distal tibial application angle.
  • FIGURE 5 illustrates the internal view of the tibia bone
  • FIGURE 6 illustrates the top view of the inventive fully anatomical poly-axial locking distal tibia plate .
  • FIGURE 7 illustrates the side view of the inventive fully anatomical poly-axial locking distal tibia plate .
  • FIGURE 8 illustrates the distal tibial application angle and the tibial plate application medial seat angle of the inventive fully anatomical poly- axial locking distal tibia plate
  • FIGURE 9 illustrates the condylar surface seat area of the inventive fully anatomical poly-axial locking distal tibia plate.
  • the present invention is a newly designed "Fully Anatomical Poly-axial Locking Distal Tibia Plate” that is both fully anatomical, and may be locked to the dorsal of the distal tibia at different angles, and developed to be used in distal tibia fractures of quadrupeds occurring as one of many consequences of traumatic events including road accidents, falling from height, firearm injuries etc.
  • Tibia bone of quadrupeds along with feline and canine animal groups has an angulated structure. Therefore, joint portions that may adjust to all angular variabilities located on the distal tibia 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 tibia bone, and are significant for the inventive fully anatomical poly-axial locking distal tibia plate are as follows; bone tibial shaft surface area (1) which extends to proximal tibia border on the tibia as illustrated in Figure 1, bone distal tibia application area (2) which is the distal application protrusion located at the bottom portion of the distal tibia bone as illustrated in Figure 1, bone distal tibia condylar translation angle (3) which is the angle between tibial shaft surface area (1) and the medial distal tibia condylar angle
  • bone medial distal tibia condylar angle (4) which is the extension angle between the distal tibia line that starts from the ankle joint on the tibia, and distal tibia condylar translation angle (3) as illustrated in Figure 3, bone distal tibial application angle
  • bone condylar surface seat area (6) which is the peak-like area located at the bottom portion of the distal tibia bone as illustrated in Figure 5, wherein the angle subjacent to the bone condylar surface seat area (6) which is located at the bottom portion of the distal tibia bone is the bone tibial application medial seat area angle (7) illustrated in Figure 5.
  • Angle and area values that are important for the present invention are as follows; plate tibial shaft surface area (1A) with a length in a range between 18.7 - 25.3 mm, as illustrated in Figure 6, having measurements thereof corresponding to the bone tibial shaft surface area (1), plate distal tibial application area (2A) with a length in a range between 25.5 - 34.5 mm, as illustrated in Figure 6, having measurements thereof corresponding to the bone distal tibia application area (2), plate distal tibia condylar translation angle (3A) with an angle in a range between 1.87°-2.5°, as illustrated in Figure 7, having measurements thereof corresponding to the bone distal tibia condylar translation angle (3), plate medial distal tibia condylar angle (4A) with an angle in a range between 3°-4°, as illustrated in Figure 7, having measurements thereof corresponding to the bone medial distal tibia condylar angle (4), plate distal tibial application angle (5A) with an
  • poly-axial locking holes (8) situated on the inventive fully anatomical poly-axial locking distal tibia plate as illustrated in Figure 6, 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 tibial 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 tibia bone are simulated in the best way possible by means of distributing biomechanical and static forces evenly on the tibia bone of the patient.
  • the inventive fully anatomical poly-axial locking distal tibia plate fits perfectly to the bone in a fully compatible manner with anatomical curvatures on the distal tibia of the patient, thereby ensuring the anatomy of the patient rapidly returns to its original form.

Abstract

The present invention relates to a fully anatomical poly-axial locking distal tibia plate that is formed according to bone anatomy, fully anatomical, capable of being locked at different angles, and designed to be used in distal tibia 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 tibia region, stemming from traumatic arthritis, fractures and similar reasons in quadrupeds and particularly in feline and canine animal groups.

Description

FULLY ANATOMICAL POLY-AXIAL LOCKING DISTAL TIBIA PLATE
DESIGNED FOR QUADRUPEDS
Technical Field of the Invention
The present invention relates to a fully anatomical poly-axial locking distal tibia plate that is formed according to bone anatomy, fully anatomical, capable of being locked at different angles, and designed to be used in distal tibia 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 tibia region, stemming from traumatic arthritis, fractures and similar reasons in quadrupeds and particularly in feline and canine animal groups.
Prior Art
Trauma-related fracture cases are occasionally encountered in various bones of quadrupeds, and of feline and canine animal groups more generally. One of these fracture cases is distal tibia fractures.
Minimally Invasive Percutaneous Osteosynthesis technique, namely "M.I.P.O." technique which is employed in operations involving bridging-tibia plate applications in the state of the art performed for correcting the segmental tibia fractures occurring in the distal tibia of quadrupeds, provides a mean surgery duration of 1 hour. Prolongation of surgery durations increases the infection occurrence risk. Furthermore, shorter surgery durations mean that the patient, who is affected by a severe trauma, will remain under the influence of anesthesia for shorter periods, and accordingly, the incidence rate for potential complications will be reduced.
Various prostheses are utilized in the state of the art in order to repair the damage originating from tumoral or traumatic, and degenerative cases. A fully anatomical plate that is in full compliance with the anatomical structure of tibia, and can increase the movement radius 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 .
Another method employed in distal tibia plate applications performed in the state of the art is the plate method. Although approximating the joint surface is desired in the aforementioned plate method, this particular method implies trying to grab the fractured distal fragment by a single screw, thereby preventing the distal fragment from remaining stable.
In the state of the art, another method employed in distal tibia plate applications is the cross-pinning method. Cross pinning method implies trying to fixate the ankle joint over the medial and lateral directions thereof towards the direction of the tibial shaft by utilizing two or more fine Kirschner pins, however, since points which are mandatorily designated as entry points, coincide with medial and lateral collateral ligaments on both surfaces, it is highly like to damage the fibular nerve line. The requirement of using fine and flexible pins dictates performing a splinting process subsequent to fixation, and this process induces joint contracture. Additionally, pin surfaces that remain outside of the bone surface generate granulation tissues as said pin surfaces rub against peripheral tissues of the ankle joint. Formation of granulation tissues is a crucial factor that affects the joint mobility negatively.
Yet another method employed in distal tibia plate applications in the state of the art is the straight pinning method. Said straight pinning method involves cutting the joint capsule open and linearly inserting a pin to the tibial shaft on the surface of tarso-tibial joint. Straight pinning method causes discharging of the synovial fluid because of the fact that joint capsule is cut open in order to gain access to the pin insertion point. Furthermore, due to the fact that 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. Meanwhile, since linear angulation cannot be achieved, an exit has to be performed to the dorsal skin region through tibia which locks the joint temporarily.
Nowadays, as it is disclosed above, various surgical methods are employed in distal tibia fractures. However, following through searches conducted in the state of the art, no system or patent application was determined pertaining to a system such as the inventive fully anatomical poly-axial locking distal tibia plate which improves patients' quality of life by ideally simulating (close to reality) motions of the tibia, and has a design that perfectly imitates the anatomy of the tibia in the treatment of tibia fractures of quadrupeds. Consequently, a fully anatomical plate that is in full compliance with the anatomical structure of distal tibia, and can increase the movement radius 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 .
Obj ects of the Invention
The present invention relates to developing a novel fully anatomical poly-axial locking distal tibia plate which ensures bone union in segmental and non-segmental distal tibia 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 including non-union, union delay or avascular necrosis by using a fully anatomical distal tibia plate that is compatible with the distal tibia of quadrupeds, and to ensure the point load distribution by connecting the inventive fully anatomical distal tibia plate to the patient by means of poly-axial locking.
Another object of the present invention is to balance the load distribution by performing a fixing process with at least three screws at the distal tibia medial condyle region, thereby aligning the entirety of loads received in the direction of the knee joint and/or hip joint with cortex and performing a linear load transfer thereof through balanced cortex strength by means of the fully anatomical structure of the present invention. This provides a reduction in loads being received on the screw and/or the plate. Virtually conducted biomechanical studies of the present invention have demonstrated that all screws as well as all surfaces of the plate are exposed to equal tension forces.
Yet another object of the present invention is to shorten post operative hospitalization period and to prevent joint contracture in animals through the poly-axial locking screw system that provides full load distribution without imposing any effects and inducing any changes in the joint structure as well as in the functionality of other systemic structures by means of the method employed and the inventive fully anatomical poly-axial locking distal tibia plate utilized. In parallel therewith, muscular atrophies can also be prevented. Being away from the neural lines allows for avoiding potential nerve damages. Furthermore, shortening durations for application and surgeries also makes substantial contributions to shortening the length of treatment periods.
By means of the present invention the entirety of loads being received at the angulated line of distal tibia will be distributed at the upper fragment in all gait phases of the quadrupeds, and the integrity of the segmental and non- segmental fractures occurring in the distal tibia will be achieved in a much faster and efficient manner in view of the fact that hypervariability of the gait phases of quadrupeds and load forces that are being received due to the fact that their upright treading angle is 120°, and that they carry 40% of their body weight on their hindlimbs, and that distal tibia angularities of quadrupeds vary greatly.
Detailed Description of the Invention
In order to achieve aforementioned objects of the present invention the inventive fully anatomical poly-axial locking distal tibia plate and components thereof, designed in compliance with the bone structure of quadrupeds, and to be used in the reconstruction of defects that occur in distal tibia bones of quadrupeds for any reason are illustrated in annexed figures, wherein;
FIGURE 1 illustrates the top view of the tibia bone,
FIGURE 2 illustrates the tibia bone distal tibia condylar translation angle.
FIGURE 3 illustrates the tibia bone medial distal tibia condylar angle.
FIGURE 4 illustrates the tibia bone distal tibial application angle.
FIGURE 5 illustrates the internal view of the tibia bone, FIGURE 6 illustrates the top view of the inventive fully anatomical poly-axial locking distal tibia plate .
FIGURE 7 illustrates the side view of the inventive fully anatomical poly-axial locking distal tibia plate .
FIGURE 8 illustrates the distal tibial application angle and the tibial plate application medial seat angle of the inventive fully anatomical poly- axial locking distal tibia plate,
FIGURE 9 illustrates the condylar surface seat area of the inventive fully anatomical poly-axial locking distal tibia plate.
Reference Numeral s
1. Tibial Shaft Surface Area
1A. Plate Tibial Shaft Surface Area
2. Bone Distal Tibia Application Area 2A. Plate Distal Tibia Application Area
3. Bone Distal Tibia Condylar Translation Angle
3A. Plate Distal Tibia Condylar Translation Angle
4. Bone Medial Distal Tibia Condylar Angle
4A. Plate Medial Distal Tibia Condylar Angle
5. Bone Distal Tibia Application Angle
5A. Plate Distal Tibial Application Angle
6. Bone Condylar Surface Seat Angle
6A. Plate Condylar Surface Seat Angle
7. Bone Tibial Application Medial Seat Area Angle
7A. Plate Tibial Application Medial Seat Area Angle
8. Poly-axial Locking Holes
The present invention is a newly designed "Fully Anatomical Poly-axial Locking Distal Tibia Plate" that is both fully anatomical, and may be locked to the dorsal of the distal tibia at different angles, and developed to be used in distal tibia fractures of quadrupeds occurring as one of many consequences of traumatic events including road accidents, falling from height, firearm injuries etc.
Tibia bone of quadrupeds along with feline and canine animal groups has an angulated structure. Therefore, joint portions that may adjust to all angular variabilities located on the distal tibia 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 tibia bone, and are significant for the inventive fully anatomical poly-axial locking distal tibia plate are as follows; bone tibial shaft surface area (1) which extends to proximal tibia border on the tibia as illustrated in Figure 1, bone distal tibia application area (2) which is the distal application protrusion located at the bottom portion of the distal tibia bone as illustrated in Figure 1, bone distal tibia condylar translation angle (3) which is the angle between tibial shaft surface area (1) and the medial distal tibia condylar angle
(4) as illustrated in Figure 2, bone medial distal tibia condylar angle (4) which is the extension angle between the distal tibia line that starts from the ankle joint on the tibia, and distal tibia condylar translation angle (3) as illustrated in Figure 3, bone distal tibial application angle
(5) which is in the form of protrusion located at the bottom portion of the distal tibia bone as illustrated in Figure 4, bone condylar surface seat area (6) which is the peak-like area located at the bottom portion of the distal tibia bone as illustrated in Figure 5, wherein the angle subjacent to the bone condylar surface seat area (6) which is located at the bottom portion of the distal tibia bone is the bone tibial application medial seat area angle (7) illustrated in Figure 5.
Respective laboratory works were conducted on the distal tibia bones of aforementioned animal group, and accordingly minimum and maximum measurements pertaining to aforementioned angles and areas were determined. Concordantly, obtained results were optimized by means of both theoretical and practical applications, and used in the production of the inventive fully anatomical poly-axial locking distal tibia plate. Angle and area values that are important for the present invention are as follows; plate tibial shaft surface area (1A) with a length in a range between 18.7 - 25.3 mm, as illustrated in Figure 6, having measurements thereof corresponding to the bone tibial shaft surface area (1), plate distal tibial application area (2A) with a length in a range between 25.5 - 34.5 mm, as illustrated in Figure 6, having measurements thereof corresponding to the bone distal tibia application area (2), plate distal tibia condylar translation angle (3A) with an angle in a range between 1.87°-2.5°, as illustrated in Figure 7, having measurements thereof corresponding to the bone distal tibia condylar translation angle (3), plate medial distal tibia condylar angle (4A) with an angle in a range between 3°-4°, as illustrated in Figure 7, having measurements thereof corresponding to the bone medial distal tibia condylar angle (4), plate distal tibial application angle (5A) with an angle in a range between 2°-2.8°, as illustrated in Figure 8, having measurements thereof corresponding to the bone distal tibial application angle (5), plate condylar surface seat angle ( 6A) with a length in a range between 13.6-18.4 mm, as illustrated in Figure 9, having measurements thereof corresponding to the bone condylar surface seat angle (6), and plate tibial application medial seat area angle (7A) with an angle in a range between 14.5°-19.5°, as illustrated in Figure 9, having measurements thereof corresponding to the bone tibial application medial seat area (7) . Furthermore, poly-axial locking holes (8) situated on the inventive fully anatomical poly-axial locking distal tibia plate as illustrated in Figure 6, 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 tibial 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. Thus, 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 tibia bone are simulated in the best way possible by means of distributing biomechanical and static forces evenly on the tibia bone of the patient.
As the present invention is anatomically shaped, the inventive fully anatomical poly-axial locking distal tibia plate fits perfectly to the bone in a fully compatible manner with anatomical curvatures on the distal tibia of the patient, thereby ensuring the anatomy of the patient rapidly returns to its original form.

Claims

1. A prosthesis used in surgeries of distal tibia fractures occurring in animals characterized in that, it comprises;
• at least one plate tibial shaft surface area (1A),
• at least one plate distal tibial application area (2A) ,
• at least one plate distal tibia condylar translation angle ( 3A) ,
• at least one plate medial distal tibia condylar angle (4A) ,
• at least one plate distal tibia application angle (5A),
• at least one plate condylar surface seat area ( 6A) ,
• at least one plate tibial application medial seat area angle ( 7A) ,
• at least one specially angulated poly-axial locking hole (8) located in the proximal of plate.
2. Plate tibial shaft surface area (1A) according to Claim 1 characterized in that, it has a length in a range between 18.7-25.3 mm.
3. Plate distal tibial application area (2A) according to Claim 1 characterized in that, it has a length in a range between 25.5-34.5 mm.
4. Plate distal tibia condylar translation angle (3A) according to Claim 1 characterized in that, it is in range between 1.87 ° -2.5° .
5. Plate medial distal tibia condylar angle (4A) according to Claim 1 characterized in that, it is in a range between 3°- 4° .
6. Plate distal tibial application angle (5A) according to Claim 1 characterized in that, it is in a range between 2°- 2.8°.
7. Plate condylar surface seat angle ( 6A) according to Claim 1 characterized in that, it has a length in a range between 13.6-18.4 mm.
8. Plate tibial application medial seat area angle (7A) according to Claim 1 characterized in that, it is in a range between 14.5°-19.5°.
9. A prosthesis used in surgeries of distal tibia fractures occurring in animals according to Claim 1 characterized in that, it has curvatures in compliance with the anatomy of the distal tibia bone.
PCT/TR2020/050289 2019-07-24 2020-04-08 Fully anatomical poly-axial locking distal tibia plate designed for quadrupeds WO2021015690A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201911102 2019-07-24
TR2019/11102 TR201911102Y (en) 2019-07-24 FULLY ANATOMICAL POLYAXIAL LOCKING DISTAL TIBIA PLATE DESIGNED FOR FOUR-LEGGED ANIMALS

Publications (1)

Publication Number Publication Date
WO2021015690A1 true WO2021015690A1 (en) 2021-01-28

Family

ID=74192717

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2020/050289 WO2021015690A1 (en) 2019-07-24 2020-04-08 Fully anatomical poly-axial locking distal tibia plate designed for quadrupeds

Country Status (1)

Country Link
WO (1) WO2021015690A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060173458A1 (en) * 2004-10-07 2006-08-03 Micah Forstein Bone fracture fixation system
US20090143825A1 (en) * 2007-11-30 2009-06-04 Robert Graham Distal Tibia Plating System
US20100030277A1 (en) * 2008-07-31 2010-02-04 Haidukewych George J Periarticular bone plate with biplanar offset head member
US20110202093A1 (en) * 2003-05-30 2011-08-18 Grady Jr Mark P Bone Plate
US20170325858A1 (en) * 2014-12-16 2017-11-16 Hae Sun Paik Fixing instrument for open-type distal tibial osteotomy
CN206836955U (en) * 2017-02-07 2018-01-05 上海三友医疗器械股份有限公司 Attaching type inner side bone fracture plate for tibia far end

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110202093A1 (en) * 2003-05-30 2011-08-18 Grady Jr Mark P Bone Plate
US20060173458A1 (en) * 2004-10-07 2006-08-03 Micah Forstein Bone fracture fixation system
US20090143825A1 (en) * 2007-11-30 2009-06-04 Robert Graham Distal Tibia Plating System
US20100030277A1 (en) * 2008-07-31 2010-02-04 Haidukewych George J Periarticular bone plate with biplanar offset head member
US20170325858A1 (en) * 2014-12-16 2017-11-16 Hae Sun Paik Fixing instrument for open-type distal tibial osteotomy
CN206836955U (en) * 2017-02-07 2018-01-05 上海三友医疗器械股份有限公司 Attaching type inner side bone fracture plate for tibia far end

Similar Documents

Publication Publication Date Title
Nakamura et al. Open-wedge osteotomy of the proximal tibia with hemicallotasis
US20100057133A1 (en) Tibia-talus-calcaneus (T-T-C) locking plate
Kim et al. Proximal tibial anterior open-wedge oblique osteotomy: a novel technique to correct genu recurvatum
Djuraev et al. The choice of surgical tactics for the treatment of children with destructive pathological dislocation of the hip after hematogenous osteomyelitis
Li et al. The Sofield-Millar operation in osteogenesis imperfecta: A modified technique
Patel et al. First metatarsophalangeal joint arthrodesis using an intraosseous post and lag screw with immediate bearing of weight
WO2020256672A1 (en) Fully anatomical poly-axial locking distal humerus plate designed for quadrupeds
Drampalos et al. Intramedullary and intra-osseous arthrodesis of the hallux metatarsophalangeal joint
WO2021010913A1 (en) Fully anatomical poly-axial locking distal radius plate designed for quadrupeds
RU116340U1 (en) LOCK FOR OSTEOSYNTHESIS OF Fractures OF THE PROXIMAL PART OF THE TIBERA
RU2441617C1 (en) Method for removal of femoral bone with simultaneous restoration of biomechanical limb axle
WO2021015690A1 (en) Fully anatomical poly-axial locking distal tibia plate designed for quadrupeds
Brinker et al. Principles of malunions
Keltz et al. Is initial interfragmentary compression made to last? An ovine bone in vitro study
Gupta et al. Retrograde titanium elastic nailing in management of length unstable pediatric femoral shaft fracture
Thompson et al. Advanced techniques in foot and ankle reconstruction
WO2020251488A1 (en) Full anatomical poly-axial locking distal femur plate designed for quadrupeds
Edwin et al. Clinical and functional outcome of elastic stable intramedullary nailing in pediatric femoral fractures in the age group of 5-16 years
Lee et al. Rotational osteotomy with submuscular plating in skeletally immature patients with cerebral palsy
RU2793720C1 (en) Method for the treatment of ankle fractures associated with damage to the tibiofibular syndesmosis
Akman et al. Modified Simmonds-Menelaus procedure for moderate or severe adult hallux valgus
RU2723739C1 (en) Method of treating multicomponent deformation of proximal femur
Hashem et al. Fixator-Assisted Nailing for Femur Neck Fracture Nonunion: A Case Series Study
Green et al. Preventing Complications During Limb Lengthening
RU2672284C1 (en) Method of treatment of varus or valgus gonarthrosis by the method of high corrective osteotomy of tibia by means of a device with an increasing height

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20844265

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 24/05/2022)

122 Ep: pct application non-entry in european phase

Ref document number: 20844265

Country of ref document: EP

Kind code of ref document: A1