CN110916788A - Anatomical bone fracture plate for acromion fracture and internal fixation system comprising same - Google Patents
Anatomical bone fracture plate for acromion fracture and internal fixation system comprising same Download PDFInfo
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- CN110916788A CN110916788A CN201911307332.3A CN201911307332A CN110916788A CN 110916788 A CN110916788 A CN 110916788A CN 201911307332 A CN201911307332 A CN 201911307332A CN 110916788 A CN110916788 A CN 110916788A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8052—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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8061—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates specially adapted for particular bones
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Abstract
The invention provides an anatomical bone fracture plate for acromion fracture and an internal fixation system comprising the same, wherein the anatomical bone fracture plate comprises a first fixing part and a second fixing part which are connected with each other, and an included angle between the first fixing part and the second fixing part is larger than 90 degrees and smaller than 180 degrees; the first fixing part is fixed on the acromion, and the second fixing part is fixed on the top of the scapular spine and the joint of the top of the scapular spine and the acromion, so that the problems that the existing kirschner wire is not firm in fixation and the kirschner wire is not easy to bend in the operation of reconstructing a bone plate are solved; the bone fracture plate body is tightly attached to the scapula, the bending step is not needed in the operation, the operation failure risk caused by the fact that the shape of the reconstructed plate is not consistent with the bone after the reconstructed plate is bent is avoided, the strength of the reconstructed titanium plate is damaged by the bending operation, the operation time is shortened, the bleeding amount is reduced, and the infection risk is reduced.
Description
Technical Field
The invention belongs to the field of medical bone fracture plates, and particularly relates to an anatomical bone fracture plate for acromion fracture and an internal fixing system comprising the same.
Background
The acromion is a part of the cantilever beam arm extending forwards from the scapular spine, and is only protected by the scapular spine and surrounding muscular tissues, and the tissues above the acromion are weak, so that the acromion is easy to fracture when impacted, and is particularly important for fixing the acromion.
Aiming at acromion fracture fixation surgery, the currently and commonly used internal fixture is a Kirschner wire or a reconstruction steel plate. The above method has the following disadvantages: 1. the kirschner wire has insufficient fixation strength, and is easy to have complications such as fracture displacement, abnormal healing and the like after operation, thereby seriously affecting the function of the shoulder joint. 2. The soft tissue above the shoulder is weak, the thickness of the reconstructed steel plate is larger, the local skin is stimulated, the pain of the patient is increased, and the postoperative rehabilitation of the patient is not facilitated. 3. The length of the shoulder peak is small, and the number of the arranged nails of the reconstruction steel plate is limited due to overlarge nail distance, thereby influencing the fixing strength. 4. The kirschner wire and the reconstructed titanium plate screw have no definite guide, and have the risk of penetrating into the shoulder joint capsule, damaging the joint structure and increasing the iatrogenic injury. 5. The reconstruction plate bent manually cannot completely conform to the anatomical morphology of the scapula, so that surrounding tissues are irritated, and the pain of a patient is increased.
Summary of the invention
In view of the above, the invention provides an anatomical bone plate for acromion fracture and an internal fixation system comprising the same, so as to overcome the problems that a reconstructed bone plate is not easy to bend in an operation and the anatomical fit between the bone plate and a scapula is not good.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
an anatomical bone fracture plate for acromion fracture comprises a bone fracture plate body, wherein the bone fracture plate body comprises a first fixing part and a second fixing part; the width of the first fixing part is larger than that of the second fixing part;
the first fixing part comprises a first surface and a second surface arranged opposite to the first surface, and the first surface is contacted with the shoulder peak; the second fixing part comprises a third surface and a fourth surface arranged opposite to the third surface, and the third surface is contacted with the top of the spine and/or the joint of the top of the spine and the acromion; the first surface is connected with the third surface, and the second surface is connected with the fourth surface;
the included angle between the first fixing part and the second fixing part is more than 90 degrees and less than 180 degrees.
The first fixing part and the second fixing part are connected through a transition section, and the length of the transition section is 1/4-1/6 of the length of the bone plate body.
The second fixing part is elongated.
The first fixing part is provided with a plurality of first holes, the second fixing part is provided with a plurality of second holes, and the second holes are arranged along the length direction of the second fixing part.
The number of the first holes is 5, the included angle between each first hole and the normal line of the bone fracture plate body is different, and the included angle between the center line of each first hole and the normal line of the bone fracture plate body is 60-120 degrees.
The number of the first holes is 5, the connecting line of the central line points of 4 first holes is quadrilateral, and the other 1 first hole is positioned between the first 4 first holes and the second fixing part.
The number of the second holes is 2-4, the included angle between the center line of the second hole and the normal line of the bone fracture plate body is 15-60 degrees, and the included angles between the center line of the second hole and the normal line of the bone fracture plate body are not completely the same for 2-4 holes.
The first hole is a threaded hole, and the second hole is a locking pressurization hole.
The thickness of the bone fracture plate body is 1.3mm-2.5 mm.
An internal fixation system comprising a anatomic bone plate as described above for acromion fractures and a retaining member for retaining the anatomic bone plate in the bone.
Compared with the prior art, the anatomical bone plate for acromion fracture and the internal fixation system comprising the same have the following advantages:
(1) the first fixing part provided by the invention can be fixed on the acromion, and the second fixing part can fix the scapular spine and/or the connection part of the scapular spine and the acromion, so that the problems that the existing kirschner wire is not firmly fixed and the kirschner wire is not easily bent in the operation of reconstructing a bone plate are solved; the shapes of the first surface and the third surface are respectively the same as the anatomical shapes of the top of the scapula and the acromion, so that the bone fracture plate body is tightly attached to the scapula, the bending step is not needed in the operation, the operation failure risk caused by the fact that the shape of the bent reconstruction plate is inconsistent with the bone is avoided, the damage of the bending operation on the strength of the reconstruction titanium plate is avoided, the operation time is shortened, the bleeding amount is reduced, and the infection risk is reduced.
(2) When the anatomical bone fracture plate for acromion fracture and the internal fixing system comprising the same are used, the first fixing part of the bone fracture plate body is attached to the acromion, and the second fixing part is attached to the top of the scapular spine and/or the joint of the scapular spine and the acromion, so that a doctor can conveniently carry out reduction internal fixation operation, the operation difficulty is reduced, the nail implantation is convenient, the operation time is saved, the iatrogenic risk is reduced, the postoperative discomfort of a patient is reduced, and a good postoperative recovery effect is achieved for the patient.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. In the drawings:
FIG. 1 is a schematic structural view of an anatomical bone plate according to an embodiment of the present invention, fixed to the acromion and the top of the spine;
FIG. 2 is a schematic view of an anatomical bone plate for acromion fracture projected onto a plane according to one embodiment of the present invention;
FIG. 3 is a schematic perspective view of an anatomical bone plate for acromion fracture according to an embodiment of the present invention;
fig. 4 is a perspective view of an anatomical bone plate for acromion fractures according to an embodiment of the present invention providing a different perspective view than that of fig. 3.
Description of reference numerals:
1-a first fixed part; 2-a second surface; 3-a first implant screw; 4-a first well; 5-a transition section; 6-bone fracture plate body; 7-a second fixed part; 8-a fourth surface; 9-a second implant screw; 10-a second well; 11-arc edge; 12-a third surface; 13-scapular spine; 14-a boss; 15-a first surface; 16-acromion.
Detailed Description
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.
In the prior art, the anatomical bone fracture plate for acromion fracture mostly uses a reconstruction bone plate, and the reconstruction bone plate is not easy to bend in an operation and has poor anatomical fit with scapulae. In view of the technical problem, the present embodiment provides an internal fixation system, as shown in fig. 1 to 4, the internal fixation system includes an anatomical bone plate and a locking member for acromion fracture, the anatomical bone plate for acromion fracture includes a bone plate body 6, the bone plate body 6 includes a first fixing portion 1 and a second fixing portion 7 connected to each other, and a circular arc-shaped protrusion 14 is disposed on a side of the first fixing portion 1; the second fixing part 7 is in the shape of an elongated plate, the end of the second fixing part is provided with a circular arc edge 11, the width of the first fixing part 1 is greater than that of the second fixing part 7, and the included angle between the first fixing part 1 and the second fixing part 7 (the included angle is the included angle between the first fixing part 1 and the second fixing part 7 after the anatomical bone plate is projected on a plane (a plane view after the anatomical bone plate is projected on the plane is shown in fig. 2)) is greater than 90 degrees and less than 180 degrees, such as 95 degrees, 100 degrees, 105 degrees, 110 degrees, 120 degrees, 150 degrees or 170.5 degrees; the bone fracture plate body 6 conforms to the anatomical morphology of the scapula 16 and the top of the scapula 13, and on the basis, the protrusions are designed according to the anatomical morphology, namely the protrusions are designed according to the top surface morphology of the scapula 16, further, the first fixing parts conform to the anatomical morphology of the scapula, and the second fixing parts conform to the anatomical morphology of the top of the scapula and/or the anatomical morphology of the connecting part of the top of the scapula and the scapula. The width of the first fixing part 1 is larger than that of the second fixing part 7, and an included angle between the first fixing part 1 and the second fixing part 7 is larger than 90 degrees and smaller than 180 degrees, so that the bone fracture plate is more stable in fixation, stronger in fixing strength and more in accordance with the anatomical form of the acromion part.
The first fixing part 1 is provided with a plurality of first holes 4, the second fixing part 7 is provided with a plurality of second holes 10, and the second holes 10 are arranged along the length direction of the second fixing part 7; the first hole 4 cooperates with the first implant screw 3 and the second hole 10 cooperates with the second implant screw 9.
As shown in fig. 1 and 3, the first fixing portion 1 includes a first surface 15 in contact with the shoulder 16 and a second surface 2 opposite thereto; the second fixing portion 7 includes a third surface 12 contacting the top of the scapular spine 13 and a fourth surface 8 opposite thereto; the first surface 15 and the third surface 12 have the same shape as the anatomical shape of the acromion 16 and the top of the spine 13, respectively. The anatomical shapes of the shoulder peak 16 and the scapular spine 13 are adopted on the first surface 15 and the third surface 12, so that a bending step is not needed in the operation, the operation failure risk caused by the fact that the shape of the reconstruction plate is not consistent with the bone after being bent and the damage to the strength of the reconstruction bone plate caused by the bending operation are avoided, the operation time is shortened, the bleeding amount is reduced, and the infection risk caused by long exposure time in the operation is reduced.
As shown in fig. 1 to 4, a transition section 5 is arranged between the first fixing part 1 and the second fixing part 7, and the length of the transition section 5 is 1/4-1/6 of the length of the bone plate body 6, such as 1/5 and the like.
As shown in fig. 1 to 4, the number of the first holes 4 is 5, the included angle between each first hole 4 and the normal of the bone plate body 6 is different, and the included angle between the center line of the first hole 4 and the normal of the bone plate body 6 is 60 degrees to 120 degrees, such as 65 degrees, 80 degrees, 90 degrees, 95 degrees, 100 degrees, 110 degrees or 115 degrees. The five first holes 4 are locked in the shoulder peak 16 in a crossed manner, the contact area between the first holes 4 and the shoulder peak 16 of the scapula is increased in a limited range, the fixing strength is improved, the bone fracture plate can be prevented from rotating, and the probability of separation of the bone fracture plate body 6 and the scapula spine 13 is reduced. Preferably, the included angles between the central lines of the 5 first holes 4 and the normal of the bone plate body 6 can be respectively as follows: 60 ° to 70 °, 75 ° to 90 °, 100 ° to 120 °, 110 ° to 120 °, or 80 ° to 102 °.
As shown in fig. 4, the number of the first holes 4 is 5, wherein a line connecting center points of the first 4 first holes 4 is a quadrangle, and the other 1 first hole 4 is located between the first 4 first holes 4 and the second fixing portion 7.
As shown in fig. 1 to 4, the number of the second holes 10 is 2 to 4, such as 3, the included angle between the central line of the second hole 10 and the normal of the bone plate body 6 is 15 ° to 60 °, such as 16 °, 20 °, 25 °, 30 °, 35 °, 40 °, 50 ° or 55 °, and the included angle between the central line of the second hole 2 to 4 and the normal of the bone plate body is not exactly the same, and preferably, the central line of the second hole is inclined toward the thicker direction of the shoulder blade. At least 2 second holes 10 are provided, preferably 4 second holes 10 are provided, the second holes 10 are arranged along the length direction of the second fixing part, the center lines of the second holes 10 and the normal line of the bone plate body 6 are at certain angles, such as 15-60 degrees, and are deviated to the thicker part of the scapula, the length of the used screw is increased, the drawing force of the screw is increased, the second holes 10 form cross locking, and the bone plate body 6 is prevented from rotating and separating from the scapula spine 13; and the screw rod of each second implantation screw 9 does not interfere with each other, and the spacing distance between the adjacent second holes 10 is the same.
As shown in FIG. 1, the first implant screw 3 has a diameter of 2.7mm, and the second implant screw 9 has a diameter of 2.7mm or 3.5 mm. The diameter of the first implant screw 3 is made smaller than that of the second implant screw 9, and thus less trauma is caused to the acromion and the scapular spine while the locking strength is ensured.
Preferably, the plurality of first holes 4 and the plurality of second holes 10 may be independently selected from any one or a combination of at least two of threaded holes, unthreaded holes, and press-locking holes, such as a combination of a threaded hole and an unthreaded hole, a combination of a threaded hole and a press-locking hole, and a combination of a threaded hole, an unthreaded hole, and a lock-pressing hole. Preferably, the first hole 4 is a threaded hole, and the second hole 10 is a locking pressurization hole.
The thickness of the bone fracture plate body 6 is 1.3mm-2.5mm, such as 1.4mm, 1.5mm, 1.6mm, 1.8mm, 2.0mm, 2.3mm or 2.4mm, and is made of a material suitable for being implanted into the surface of a human bone, typically but not limited to: pure titanium TA3G or a titanium alloy material. The strength of the bone fracture plate body 6 is obviously higher than that of a Kirschner wire tension band system, so that the fracture stability is improved, and the fracture displacement and abnormal healing risks are reduced.
The use method of the internal fixation system comprising the anatomical bone plate for acromion fractures comprises the following steps:
firstly, a first fixing part 1 of a bone fracture plate body 6 is attached to a shoulder peak 16, and a second fixing part 7 is attached to the top of a scapula spine 13;
and step two, respectively positioning, drilling and implanting the first hole 3 and the second hole 10, and fixing the bone fracture plate body 6 on the scapula.
According to the anatomical bone fracture plate for acromion fracture, the first fixing part can be fixed on the acromion, and the second fixing part can be used for fixing the scapulon and/or the connection part of the scapulon and the acromion, so that the problems that the existing kirschner wire is not firmly fixed and the kirschner wire is not easily bent in the reconstruction bone plate in the operation are solved; the shapes of the first surface and the third surface are respectively the same as the anatomical shapes of the top of the scapula and the acromion, so that the bone fracture plate body is tightly attached to the scapula, the bending step is not needed in the operation, the operation failure risk caused by the fact that the shape of the bent reconstruction plate is inconsistent with the bone is avoided, the damage of the bending operation on the strength of the reconstruction titanium plate is avoided, the operation time is shortened, the bleeding amount is reduced, and the infection risk is reduced.
In addition, the anatomical bone fracture plate for acromion fracture and the internal fixation system comprising the same are used, when the anatomical bone fracture plate is used, the first fixing part of the bone fracture plate body is attached to the acromion, the second fixing part is attached to the top of the scapular spine and/or the joint of the scapular spine and the acromion, a doctor can conveniently carry out reduction internal fixation operation, the operation difficulty is reduced, the nail is conveniently implanted, the operation time is saved, the iatrogenic risk is reduced, the postoperative discomfort of a patient is reduced, and a good postoperative recovery effect is achieved for the patient.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.
Claims (10)
1. An anatomical bone plate for acromion fracture, which is characterized in that: comprises a bone fracture plate body (6), wherein the bone fracture plate body (6) comprises a first fixing part (1) and a second fixing part (7); the width of the first fixing part is larger than that of the second fixing part;
the first fixing part (1) comprises a first surface and a second surface arranged opposite to the first surface, and the first surface is contacted with the shoulder peak; the second fixing part (7) comprises a third surface and a fourth surface arranged opposite to the third surface, and the third surface is in contact with the top of the spine and/or the joint of the top of the spine and the acromion; the first surface is connected with the third surface, and the second surface is connected with the fourth surface;
the included angle between the first fixing part (1) and the second fixing part (7) is larger than 90 degrees and smaller than 180 degrees.
2. An anatomical osteosynthesis plate for acromion fractures according to claim 1, characterized in that: the first fixing part (1) and the second fixing part (7) are connected through a transition section (5), and the length of the transition section (5) is 1/4-1/6 of the length of the bone fracture plate body (6).
3. An anatomical osteosynthesis plate for acromion fractures according to claim 1, characterized in that: the second fixing part (7) is elongated.
4. An anatomical osteosynthesis plate for acromion fractures according to claim 1, characterized in that: the first fixing part (1) is provided with a plurality of first holes (4), the second fixing part (7) is provided with a plurality of second holes (10), and the second holes (10) are arranged along the length direction of the second fixing part (7).
5. An anatomical osteosynthesis plate for acromion fractures according to claim 1, characterized in that: the number of the first holes (4) is 5, the included angle between each first hole (4) and the normal line of the bone fracture plate body (6) is different, and the included angle between the center line of each first hole (4) and the normal line of the bone fracture plate body (6) is 60-120 degrees.
6. An anatomical osteosynthesis plate for acromion fractures according to claim 1, characterized in that: the number of the first holes (4) is 5, the connecting line of the center line points of the 4 first holes (4) is quadrilateral, and the other 1 first hole (4) is positioned between the first 4 first holes (4) and the second fixing part (7).
7. An anatomical osteosynthesis plate for acromion fractures according to claim 1, characterized in that: the number of the second holes (10) is 2-4, the included angle between the central line of the second holes (10) and the normal line of the bone fracture plate body (6) is 15-60 degrees, and the included angles between the central lines of the 2-4 second holes (10) and the normal line of the bone fracture plate body (6) are not completely the same.
8. An anatomical osteosynthesis plate for acromion fractures according to claim 4, characterized in that: the first hole is a threaded hole, and the second hole is a locking pressurization hole.
9. An anatomical osteosynthesis plate for acromion fractures according to claim 1, characterized in that: the thickness of the bone fracture plate body (6) is 1.3mm-2.5 mm.
10. An internal fixation system comprising the anatomical plate for acromion fractures according to any one of claims 1 to 9 and a retaining member for retaining the anatomical plate in the bone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911307332.3A CN110916788A (en) | 2019-12-18 | 2019-12-18 | Anatomical bone fracture plate for acromion fracture and internal fixation system comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911307332.3A CN110916788A (en) | 2019-12-18 | 2019-12-18 | Anatomical bone fracture plate for acromion fracture and internal fixation system comprising same |
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| Publication Number | Publication Date |
|---|---|
| CN110916788A true CN110916788A (en) | 2020-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911307332.3A Pending CN110916788A (en) | 2019-12-18 | 2019-12-18 | Anatomical bone fracture plate for acromion fracture and internal fixation system comprising same |
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| Country | Link |
|---|---|
| CN (1) | CN110916788A (en) |
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