CN105395242A - Proximal tibia fracture plate system - Google Patents
Proximal tibia fracture plate system Download PDFInfo
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- CN105395242A CN105395242A CN201510785307.1A CN201510785307A CN105395242A CN 105395242 A CN105395242 A CN 105395242A CN 201510785307 A CN201510785307 A CN 201510785307A CN 105395242 A CN105395242 A CN 105395242A
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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
- A61B17/683—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin comprising bone transfixation elements, e.g. bolt with a distal cooperating element such as a nut
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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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- 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
- A61B17/809—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates with bone-penetrating elements, e.g. blades or prongs
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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
- A61B2017/564—Methods for bone or joint treatment
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Abstract
The invention relates to proximal tibia fracture plate system which comprises a front outside bone fracture plate, a rear outside bone fracture plate, a rear inside bone fracture plate and an inside bone fracture plate. The proximal tibia fracture plate system has the advantages that the special bone fracture plates are designed for different directions of a tibia platform, the shape, angle and fixing length are determined in advance based on an anatomy measurement result, the reasonable screw destruction and nail entering direction are ensured, and the fixing space of the tibia platform and the structural form of the tibia are sufficiently utilized, so that the bone fracture plate corresponding to the tibia platform is exact in fixing and good in fixing effect, and bone fracture of the tibia platform can achieve anatomical reduction.
Description
Technical field
The present invention relates to technical field of medical instruments, specifically, is a kind of proximal tibia bone plate system.
Background technology
Fracture of the tibial plateau is the common damage of a kind of orthopaedic trauma, and along with the increase day by day of vehicle accident, its sickness rate is also in rising trend.Fracture of the tibial plateau belongs to intra-articular fracture, how to affect knee joint function because of tibial plateau damage of articular surface, and treatment difficulty is large, very easily leaves over joint function disturbance.
In recent years, for the ease of to treatment for tibial plateau fracture, typing is carried out to tibial plateau, i.e. tibial plateau mixed lateral column, medial side of tibial plateau post, tibial plateau rear pillar.It adopts the blade plate for the treatment of can be divided into outer side steel plates, rear outside blade plate, rear inner side blade plate, inner side blade plate.
Its outer side steel plates is placed in outside before tibial plateau, and it must reach the requirement of dependable performance, should meet biomechanical characterization and meet anatomical features again.Inadequate in the nail bit quantity of condyles, also stable not after fixing, brings a lot of unfavorable factor to postoperative fracture healing and rehabilitation exercise, while plate shape and the goodness of fit of surface of bone form poor, increase the stimulation of soft tissue comparatively large after implant surgery, patient can be made not feel well.
Rear outside blade plate is placed in outside after tibial plateau, the posterolateral anatomical structure of tibial plateau is complicated and neural blood vessel and important tendon are covered with in this, therefore after traditional tibial plateau, outside fixed form is first indirect first by after bone reduction via outside before tibial plateau, rear outside is entered to by front outside, indirectly fix again, but this fixed form often faces and outside after tibial plateau cannot be resetted or fix, in addition specific also very rare for the posterolateral hone lamella of tibial plateau, therefore the blade plate at other position sometimes only can be utilized outside fracture after tibial plateau to be fixed, but the goodness of fit of its hone lamella plate shape and surface of bone is poor, and comfort level is also not very good after implanting.
Rear inner side blade plate is mainly placed in inside after tibial plateau, and Main Function reaches fixing sclerite and maintains tibial plateau leveling, usually selects L shape steel plate or cut most advanced and sophisticated " Herba Trifolii Pratentis " shape steel plate etc. in prior art, can not be completely docile in postartis shape.
Inner side blade plate is mainly placed in medial side of tibial plateau side to the rear.Because fracture of the tibial plateau has knee joint to turn up to cause, the general inner side of platform articular surface is fissure fracture, but walk the damage merging ligament of outside backward inside fracture line Chang Youqian more, part loading surface is cracked and subside, curative effect is not good enough, often leaves over traumatic arthritis, joint instability and joint function disturbance etc.Usually adopt the method for inner side blade plate attachment screw to treat in prior art, but existing inner side blade plate have the following disadvantages: 1. existing inner side blade plate is imprecise by front introversion posterolateral medial side of tibial plateau fracture fixation to most of fracture line trend; 2. tibial plateau articular surface can not reach anatomical reduction.
In sum, need a kind of anatomic form badly good, fixed, fixing definite, can tibial plateau leveling be maintained, the proximal tibia bone plate system of anatomical reduction can be arrived, and yet there are no report about this proximal tibia bone plate system.
Summary of the invention
The object of the invention is for deficiency of the prior art, provide a kind of anatomic form good, fixing definite, fixed, can tibial plateau leveling be maintained, the proximal tibia bone plate system of anatomical reduction can be arrived.
For achieving the above object, the technical scheme that the present invention takes is:
A kind of proximal tibia bone plate system, described bone plate system comprises outer side steel plates, rear outside blade plate, rear inner side blade plate, inner side blade plate;
Outer side steel plates entirety presents " T-shaped ", and described outer side steel plates comprises proximal head, curved surface connecting portion, far-end straight parts; Described proximal head comprises the first sidepiece and the second sidepiece; The first described sidepiece is provided with five screw hole, and the diameter of its screw hole is 3.5mm; The second described sidepiece is provided with two screw hole, and the axis of the screw hole on the axial direction of the screw hole on its second sidepiece and the first sidepiece is 90 degree; Described curved surface connecting portion is also provided with five screw hole, the edge contour of described proximal head is wave-like, can squeeze into hollow nail at trough place; Described proximal head and curved surface connecting portion are also provided with kirschner pin hole; Described far-end straight parts is provided with sliding eye, screw hole; The inwall of described far-end straight parts is provided with fan-shaped interior concaved circular cambered surface; The triangle of tail end in band circular arc of described far-end straight parts, and triangle tail end is also provided with kirschner pin hole;
Rear outside blade plate entirety is in " tiltedly T-shaped ", and described rear outside blade plate comprises near-end curved slab and curved distal plate; The connection of described curved distal plate and near-end curved slab is the version tilted, and the axis of curved distal plate and the axial angle of near-end curved slab are 66 °; Described near-end curved slab is provided with four screw hole, and its lock screw bore dia is 2.7mm; Described curved distal plate length is less than 5cm, and its curved distal plate is provided with four screw hole, and the diameter of its screw hole is 3.5mm;
Rear inner side blade plate entirety is in " T-shaped ", and described rear inner side blade plate comprises traversing section, changeover portion, longitudinal section; Described traversing section is provided with three screw hole; Described longitudinal section has five screw hole; Described changeover portion is curved-surface structure, and its changeover portion is provided with a screw hole and a sliding eye;
Inner side blade plate entirety is in " T-shaped ", and described inner side blade plate comprises slope section, end segment, head sections; Described end segment is provided with six screw hole; Described head sections is provided with four screw hole, and the diameter of its screw hole is 3.5mm, and described head sections is curved-surface structure, and the edge of its head sections is wave-like; Described slope section is provided with two screw hole; Described head sections and slope section are equipped with kirschner pin hole and screw hole; Described end segment is provided with screw hole and sliding eye.
Four screw hole on described outer side steel plates curved surface connecting portion are adjacent, and another screw hole is positioned at the remote end of curved surface connecting portion; Near three screw hole distributions triangular in shape of proximal head.
Screw hole on described outer side steel plates is connected with corresponding screw; Five screw axials wherein on the first sidepiece are consistent, and the second sidepiece screwing and the first sidepiece screwing are axially mutually vertical.
Described outer side steel plates curved surface connecting portion has four screws adjacent, and the axis of four adjacent screw is not parallel, is positioned at the screw of curved surface connecting portion four screws adjacent with other in addition towards inconsistent.
Be provided with screw in the screw hole of described rear outside blade plate near-end curved slab, the axis of its screw is parallel to each other; Be provided with screw in the screw hole that described curved distal plate is established, its screw axial is not parallel.
The screw hole of described rear inner side blade plate traversing section is provided with screw, and the axis of its screw is parallel to each other; Be provided with screw in the screw hole of described longitudinal section, its screw axial is parallel; Described longitudinal section internal face is provided with fan-shaped interior concaved circular cambered surface.
The screw hole of described inner side blade plate head sections is provided with screw, and its screw axial is consistent; Described end segment screw hole is provided with screw, and its screw axial is consistent; Described end segment medial surface is provided with fan-shaped interior concaved circular cambered surface.
The material of described outer side steel plates, rear outside blade plate, rear inner side blade plate, inner side blade plate is titanium alloy.
The invention has the advantages that:
1, a kind of proximal tibia bone plate system of the present invention, designs special blade plate for tibial plateau different azimuth.On the basis of anatomic measurement result, determine shape in advance, angle and regular length, ensure the distribution of rational screw and enter to follow closely direction, make full use of the fixed space of tibial plateau, and the configuration of tibia, the plate fixation making tibial plateau corresponding is definite, good fixing effect, reaches anatomical reduction;
2, outer side steel plates entirety presents " T-shaped ", and near-end make use of fibular head superjacent air space, outside fracture even of fracturing outside before can fixing the overwhelming majority; First sidepiece of outer side steel plates is provided with the screw hole of five 3.5mm, and adopt nail technology, more existing plate fixation sclerite is more firm;
3, the second sidepiece of outer side steel plates is provided with two screw hole, the screw that the screw assembled in its screw hole and the first sidepiece assemble is 90 degree and distributes, two screws of the second sidepiece from front to back, can fixing with the screw interlocking of the first sidepiece before outside sclerite, and can be used for fixing after outside sclerite;
4, blade plate entirety in rear outside is in " tiltedly T-shaped ", can effectively avoid blocking of fibula, is more convenient for exposing in operation;
5, rear outside blade plate near-end curved slab is fixed above fibular head, make use of the space above fibular head;
6, rear outside blade plate curved distal plate and near-end curved slab tilt, and curved distal plate length is less than 5cm, avoid blocking and rear outside complex of fibular head, the important anatomy structure such as anterior tibial artery;
7, blade plate entirety in rear inner side is in T-shape, and its traversing section and changeover portion design according to the contour shape of inner side after tibial plateau, reach fixing sclerite and maintain tibial plateau leveling, completely docile in postartis shape;
8, blade plate entirety in inner side is in " T-shaped ", slightly toward rear interior side, is mainly used in fixing classical whole inner side Platform Fracture.
Accompanying drawing explanation
Accompanying drawing 1 is a kind of proximal tibia bone plate system schematic diagram of the present invention.
Accompanying drawing 2 is the outer side steel plates lateral surface structural representations in a kind of proximal tibia bone plate system of the present invention.
Accompanying drawing 3 is outer side steel plates medial surface structural representation.
Accompanying drawing 4 is outer side steel plates and tibia connection status structural representation.
Accompanying drawing 5 is the rear outside blade plate lateral surface structural representation in a kind of proximal tibia bone plate system of the present invention.
Accompanying drawing 6 is rear outside blade plate medial surface structural representation.
Accompanying drawing 7 is rear outside blade plate and tibia connection status structural representation.
Accompanying drawing 8 is the rear inner side blade plate lateral surface structural representations in a kind of proximal tibia bone plate system of the present invention.
Accompanying drawing 9 is rear inner side blade plate medial surface structural representation.
Accompanying drawing 10 is rear inner side blade plate using state structural representation.
Accompanying drawing 11 is inner side blade plate medial surface structural representation.
Accompanying drawing 12 is inner side blade plate structural representations.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention provided by the invention is elaborated.
The Reference numeral related in accompanying drawing and ingredient as follows:
1. outer side steel plates 11. proximal head
111. first sidepiece 112. second sidepieces
12. curved surface connecting portion 13. far-end straight parts
14. screw hole 15. sliding eyes
6. fibula 17. kirschner pin hole
The fan-shaped interior concaved circular cambered surface of 18. screw 19.
2. blade plate 21. near-end curved slab in outside after
Inner side blade plate after 22. curved distal plates 3.
31. traversing section 32. changeover portions
Blade plate inside 33. longitudinal sections 4.,
41. head sections 42. slope sections
43. end segment 5. tibias
Please refer to Fig. 1, Fig. 1 is a kind of proximal tibia bone plate system schematic diagram of the present invention.A kind of tibia 5 near-end bone plate system, described bone plate system comprises outer side steel plates 1, rear outside blade plate 2, rear inner side blade plate 3, inner side blade plate 4; The material of described outer side steel plates 2, rear outside blade plate 2, rear inner side blade plate 3, inner side blade plate 4 is titanium alloy.
Please refer to Fig. 2, Fig. 2 is the outer side steel plates lateral surface structural representation in a kind of proximal tibia bone plate system of the present invention.Described outer side steel plates 1 comprises proximal head 11, curved surface connecting portion 12, far-end straight parts 13; Described proximal head 11 comprises the first sidepiece 111 and the second sidepiece 112; The first described sidepiece 111 is provided with five screw hole 14, and the diameter of its screw hole 14 is 3.5mm; The first described sidepiece 111 and the edge of curved surface connecting portion 12 are greater than the edge of the second sidepiece 112 and curved surface connecting portion 12; The second described sidepiece 112 is provided with two screw hole 14, and the axis of the screw hole 14 on the axial direction of the screw hole 14 on its second sidepiece 112 and the first sidepiece 111 is 90 degree; Described curved surface connecting portion 12 is also provided with five screw hole 14, wherein have four screw hole 14 adjacent, another screw hole 14 is positioned at the remote end of curved surface connecting portion 12; Near three screw hole 14 distributions triangular in shape of proximal head 11; The edge contour of described proximal head 11 is wave-like; Described proximal head 11 and curved surface connecting portion 12 are also provided with kirschner pin hole 17; Described far-end straight parts 13 is provided with sliding eye 15, screw hole 14, and wherein sliding eye 15 is made up of two arc sections and two straight sections.
Please refer to Fig. 3, Fig. 3 is outer side steel plates medial surface structural representation.Screw hole 14 on described outer side steel plates 1 is connected with corresponding screw 18, and five screws 18 wherein on the first sidepiece 111 are axially consistent, and the second sidepiece 112 screwing 18 and the first sidepiece 111 screwing 18 are axially mutually vertical; Described curved surface connecting portion 12 has four screws 18 adjacent, and the axis of four adjacent screw 18 is not parallel, is positioned at the screw 18 of curved surface connecting portion 12 four screws 18 adjacent with other in addition towards inconsistent; The inwall of described far-end straight parts 13 is provided with fan-shaped interior concaved circular cambered surface 19, and its fan-shaped interior concaved circular cambered surface 19 is equidistantly distributed in both sides; The triangle of tail end in band circular arc of described far-end straight parts 13, and triangle tail end is also provided with kirschner pin hole 17.
It should be noted that: as shown in Figure 4, Fig. 4 is outer side steel plates and tibia connection status structural representation.Described front external blade plate is positioned at the anterolateral surface of tibia 5 platform, and wherein, on outside plate, the first sidepiece 111 is near fibula 6, and the second sidepiece 112 is away from fibula 6; Outer side steel plates 1 entirety presents " T-shaped ", and near-end make use of fibula 6 superjacent air spaces, outside fracture even of fracturing outside before can fixing the overwhelming majority;
First sidepiece 111 is provided with the screw hole 14 of five 3.5mm, and adopt nail technology, more existing plate fixation sclerite is more firm; Second sidepiece 112 is provided with two screw hole 14, the screw 18 that the screw 18 assembled in its screw hole 14 and the first sidepiece 111 assemble distributes in 90 degree, two screws 18 of the second sidepiece 112 from front to back, can fixing with screw 18 interlocking of the first sidepiece 111 before outside sclerite, and can be used for fixing after outside sclerite; The design of curved surface connecting portion 12, meet the structural design of tibia 5, make outer side steel plates 1 and tibia 5 surface of bone form fixing definite by curved surface connecting portion 12, comfort is good, and curved surface connecting portion 12 is provided with five screw hole 14, after installing corresponding screw 18, can, to outer side steel plates 1 by fixation, curved surface connecting portion 12 and tibia 5 can be made on the other hand well to agree with on the one hand;
First sidepiece 111 can install five screws 18, second sidepiece 112 can install two screws 18, curved surface connecting portion 12 is provided with five screws 18, makes screw 18 abundant amount of condyles, and hold is stablized;
Far-end straight parts 13 is provided with sliding eye 15, and after assembling corresponding screw 18 in sliding eye 15, its front outside plate can move thereon a little, is conducive to installation and the adjustment of outer side steel plates 1; In addition, the screw hole 14 in far-end straight parts 13 equidistantly distributes, and after installing corresponding screw 18, screw 18 is axially parallel to each other, fixing good reliability;
Proximal head 11 edge undulate on described front outside plate, its trough prescription hollow nail fixing, outer side steel plates 1 inwall is also provided with fan-shaped interior concaved circular cambered surface 19, make, between front outside plate and tibia 5, there is circulation passage, avoid blood transportation bad, and other complication occur.
Please refer to Fig. 5, Fig. 5 is the rear outside blade plate 2 lateral surface structural representation in a kind of proximal tibia bone plate system of the present invention.Described rear outside blade plate 2 comprises near-end curved slab 21 and curved distal plate 22; The connection of described curved distal plate 22 and near-end curved slab 21 is the version tilted, and the axis of curved distal plate 22 and the axial angle of near-end curved slab 21 are 66 °; Described near-end curved slab 21 is provided with four screw hole 14, and its screw hole 14 diameter is 2.7mm; Described curved distal plate 22 length is less than 5cm, and its curved distal plate 22 is provided with four screw hole 14, and the diameter of its screw hole 14 is 3.5mm.
Please refer to Fig. 6, Fig. 6 is rear outside blade plate medial surface structural representation.Be provided with screw 18 in the screw hole 14 of described near-end curved slab 21, the axis of its screw 18 is parallel to each other; Be provided with screw 18 in the screw hole 14 that described curved distal plate 22 is established, its screw 18 is axially not parallel; Described near-end curved slab 21 two ends are to middle indent; Described curved distal plate 22 two ends are to central evagination;
It should be noted that: please refer to Fig. 7, Fig. 7 is rear outside blade plate and tibia connection status structural representation.Described rear outside blade plate 2 is for fixing rear outside sclerite, and overall is " tiltedly T-shaped ", can effectively avoid blocking of fibula 6, is more convenient for exposing in operation; Described near-end curved slab 21 fixes fibula 6 tops, and the axis of curved distal plate 22 and the axial angle of near-end curved slab 21 are 66 °, make use of the space of fibula 6 tops; Described curved distal plate 22 tilts with near-end curved slab 21, and curved distal plate length is less than 5cm, avoids blocking and rear outside complex of fibular head, the important anatomy structure such as anterior tibial artery; Described near-end curved slab 21 two ends central authorities indent, curved distal plate 22 two ends, to the design of central evagination, match with outside curve after tibia 5, make rear outside blade plate 2 fixing definite;
By the rear outside blade plate 2 designed separately, be fixed from posterolateral approach, with prior art, after Anteroposterior aproach adopts normal blade plate to fix tibia 5 platform, outside is compared, and rear outside of the present invention blade plate 2 can be good at appearing, resetting and fixing fracture.
Please refer to Fig. 8, Fig. 8 is the rear inner side blade plate 3 lateral surface structural representation in a kind of proximal tibia bone plate system of the present invention.Described rear inner side blade plate 3 comprises traversing section 31, changeover portion 32, longitudinal section 33; Described traversing section 31 is provided with three screw hole 14; Described longitudinal section 33 is provided with five screw hole 14; Described changeover portion 32 is curved-surface structure, and its changeover portion 32 is provided with a screw hole 14 and a sliding eye 15.
Please refer to Fig. 9, Fig. 9 is rear inner side blade plate medial surface structural representation.The screw hole 14 of described traversing section 31 is provided with screw 18, and the axis of its screw 18 is parallel to each other; Be provided with screw 18 in the screw hole 14 of described longitudinal section 33, its screw 18 is axially parallel; Described longitudinal section 33 internal face is provided with fan-shaped interior concaved circular cambered surface 19.
It should be noted that: please refer to Figure 10, Figure 10 is rear inner side blade plate using state structural representation.Described rear inner side blade plate 3 is positioned on the rear inner side of tibia 5, rear inner side blade plate 3 entirety is in " T-shaped ", its traversing section 31 and changeover portion 32 design according to the contour shape of inner side after tibia 5 platform, reach fixing sclerite and to maintain tibia 5 platform smooth, completely docile in postartis shape.
Please refer to Figure 11, Figure 11 is inner side blade plate medial surface structural representation.Described inner side blade plate 4 comprises slope section 42, end segment 43, head sections 41; Described end segment 43 is provided with six screw hole 14; Described head sections 41 is provided with four screw hole 14, and the diameter of its screw hole 14 is 3.5mm, and described head sections 41 is curved-surface structure, and the edge of its head sections 41 is wave-like; Described slope section 42 is provided with two screw hole 14; Described head sections 41 and slope section 42 are equipped with kirschner pin hole 17 and screw hole 14; Described end segment 43 is provided with screw hole 14 and sliding eye 15.
The screw hole 14 of described head sections 41 is provided with screw 18, and its screw 18 is axially consistent; Described end segment 43 screw hole 14 is provided with screw 18, and its screw 18 is axially consistent; Described end segment 43 medial surface is provided with fan-shaped interior concaved circular cambered surface 19.
It should be noted that: please refer to Figure 12, Figure 12 is inner side blade plate structural representation.Described inner side blade plate 4 entirety, in " T-shaped ", slightly toward rear interior side, be mainly used in fixing classical whole inner side Platform Fracture, make the fracture articular surface of tibia 5 platform to reach anatomical reduction.
A kind of proximal tibia bone plate system of the present invention, special blade plate is designed for tibial plateau different azimuth, on the basis of anatomic measurement result, determine shape in advance, angle and regular length, ensure that rational screw 18 distributes and enters to follow closely direction, make full use of the fixed space of tibia 5 platform, and the configuration of tibia 5, such that plate fixation that tibia 5 platform is corresponding is definite, good fixing effect, make the fracture articular surface of tibia 5 platform to reach anatomical reduction; Outer side steel plates 1 entirety presents " T-shaped ", and near-end make use of fibula 6 superjacent air spaces, outside fracture even of fracturing outside before can fixing the overwhelming majority; First sidepiece 111 of outer side steel plates 1 is provided with the screw hole 14 of five 3.5mm, and adopt nail technology, more existing plate fixation sclerite is more firm; Second sidepiece 112 of outer side steel plates 1 is provided with two screw hole 14, the screw 18 that the screw 18 assembled in its screw hole 14 and the first sidepiece 111 assemble distributes in 90 degree, two screws 18 of the second sidepiece 112 from front to back, can fixing with screw 18 interlocking of the first sidepiece 111 before outside sclerite, and can be used for fixing after outside sclerite; Rear outside blade plate 2 entirety, in " tiltedly T-shaped ", can effectively avoid blocking of fibula 6, is more convenient for exposing in operation; Rear outside blade plate 2 near-end curved slab 21 fixes fibula 6 tops, make use of the space of fibula 6 tops; Rear outside blade plate 2 curved distal plate 22 and near-end curved slab 21 tilt, and curved distal plate length is less than 5cm, avoid blocking and rear outside complex of fibular head, the important anatomy structure such as anterior tibial artery; Blade plate 3 entirety in rear inner side is in T-shape, and its traversing section 31 and changeover portion 32 design according to the contour shape of inner side after tibia 5 platform, reaches fixing sclerite and to maintain tibia 5 platform smooth, completely docile in postartis shape; Inner side blade plate 4 entirety, in " T-shaped ", slightly toward rear interior side, is mainly used in fixing classical whole inner side Platform Fracture.
It should be noted that: the vertical component effect length of outer side steel plates 1, rear outside blade plate 2, rear inner side blade plate 3, inner side blade plate 4 and screw hole count thereof please condition can be selected according to patient's fracture.Not only be confined to above-described embodiment, above-described embodiment is preferred embodiment.The blade plate of its different length and screw number are all within protection scope of the present invention.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the inventive method; can also make some improvement and supplement, these improve and supplement and also should be considered as protection scope of the present invention.
Claims (8)
1. a proximal tibia bone plate system, is characterized in that, described bone plate system comprises outer side steel plates, rear outside blade plate, rear inner side blade plate, inner side blade plate;
Outer side steel plates entirety presents " T-shaped ", and described outer side steel plates comprises proximal head, curved surface connecting portion, far-end straight parts; Described proximal head comprises the first sidepiece and the second sidepiece; The first described sidepiece is provided with five screw hole, and the diameter of its screw hole is 3.5mm; The second described sidepiece is provided with two screw hole, and the axis of the screw hole on the axial direction of the screw hole on its second sidepiece and the first sidepiece is 90 degree; Described curved surface connecting portion is also provided with five screw hole, the edge contour of described proximal head is wave-like, can squeeze into hollow nail at trough place; Described proximal head and curved surface connecting portion are also provided with kirschner pin hole; Described far-end straight parts is provided with sliding eye, screw hole; The inwall of described far-end straight parts is provided with fan-shaped interior concaved circular cambered surface; The triangle of tail end in band circular arc of described far-end straight parts, and triangle tail end is also provided with kirschner pin hole;
Rear outside blade plate entirety is in " tiltedly T-shaped ", and described rear outside blade plate comprises near-end curved slab and curved distal plate; The connection of described curved distal plate and near-end curved slab is the version tilted, and the axis of curved distal plate and the axial angle of near-end curved slab are 66 °; Described near-end curved slab is provided with four screw hole, and its lock screw bore dia is 2.7mm; Described curved distal plate length is less than 5cm, and its curved distal plate is provided with four screw hole, and the diameter of its screw hole is 3.5mm;
Rear inner side blade plate entirety is in " T-shaped ", and described rear inner side blade plate comprises traversing section, changeover portion, longitudinal section; Described traversing section is provided with three screw hole; Described longitudinal section has five screw hole; Described changeover portion is curved-surface structure, and its changeover portion is provided with a screw hole and a sliding eye;
Inner side blade plate entirety is in " T-shaped ", and described inner side blade plate comprises slope section, end segment, head sections; Described end segment is provided with six screw hole; Described head sections is provided with four screw hole, and the diameter of its screw hole is 3.5mm, and described head sections is curved-surface structure, and the edge of its head sections is wave-like; Described slope section is provided with two screw hole; Described head sections and slope section are equipped with kirschner pin hole and screw hole; Described end segment is provided with screw hole and sliding eye.
2. bone plate system according to claim 1, is characterized in that, four screw hole on described outer side steel plates curved surface connecting portion are adjacent, and another screw hole is positioned at the remote end of curved surface connecting portion; Near three screw hole distributions triangular in shape of proximal head.
3. bone plate system according to claim 1, is characterized in that, the screw hole on described outer side steel plates is connected with corresponding screw; Five screw axials wherein on the first sidepiece are consistent, and the second sidepiece screwing and the first sidepiece screwing are axially mutually vertical.
4. bone plate system according to claim 1, it is characterized in that, described outer side steel plates curved surface connecting portion has four screws adjacent, and the axis of four adjacent screw is not parallel, is positioned at the screw of curved surface connecting portion four screws adjacent with other in addition towards inconsistent.
5. bone plate system according to claim 1, is characterized in that, be provided with screw in the screw hole of described rear outside blade plate near-end curved slab, the axis of its screw is parallel to each other; Be provided with screw in the screw hole that described curved distal plate is established, its screw axial is not parallel.
6. bone plate system according to claim 1, is characterized in that, the screw hole of described rear inner side blade plate traversing section is provided with screw, and the axis of its screw is parallel to each other; Be provided with screw in the screw hole of described longitudinal section, its screw axial is parallel; Described longitudinal section internal face is provided with fan-shaped interior concaved circular cambered surface.
7. bone plate system according to claim 1, is characterized in that, the screw hole of described inner side blade plate head sections is provided with screw, and its screw axial is consistent; Described end segment screw hole is provided with screw, and its screw axial is consistent; Described end segment medial surface is provided with fan-shaped interior concaved circular cambered surface.
8. bone plate system according to claim 1, is characterized in that, the material of described outer side steel plates, rear outside blade plate, rear inner side blade plate, inner side blade plate is titanium alloy.
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| CN111096779A (en) * | 2019-12-23 | 2020-05-05 | 首都医科大学附属北京潞河医院 | Fixing device for tibial plateau hyperextension fracture |
| CN111728687A (en) * | 2020-07-23 | 2020-10-02 | 吉林大学 | Tibial tubercle fracture bone plate and using method thereof |
| CN112869859A (en) * | 2021-03-19 | 2021-06-01 | 苏州欣荣博尔特医疗器械有限公司 | Auxiliary extension locking bone fracture plate for proximal tibia |
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