CN101507653A - Tibial plateau rear-side anatomical-form bone fracture plate - Google Patents
Tibial plateau rear-side anatomical-form bone fracture plate Download PDFInfo
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- CN101507653A CN101507653A CNA2009100966374A CN200910096637A CN101507653A CN 101507653 A CN101507653 A CN 101507653A CN A2009100966374 A CNA2009100966374 A CN A2009100966374A CN 200910096637 A CN200910096637 A CN 200910096637A CN 101507653 A CN101507653 A CN 101507653A
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Abstract
The invention relates to a tibial platform backside anatomic blade plate, which comprises a handle shaped part adapted to diaphysis of tibia; the front end of the handle shaped part is forward extended with a first support plate and a second support plate to form the Y-shaped integral blade plate; the first support plate and the second support plate are adapted to capitulum of the tibia; and the handle shaped part, the first support plate and the second support plate are all provided with screw holes. The Y-shaped blade plate is specially used for tibial platform backside, can avoid influencing tendons on the tibial platform backside, can effectively fix tibial platform backside fracture, provides effective support for rearward displacement and compression of lateral platform fracture, and additionally can early provide dirigation for joints after lateral fixation. The tibial platform backside anatomic blade plate is simple and convenient to operate and place in surgeries.
Description
(1) technical field
The present invention relates to a kind of blade plate, particularly relate to a kind of blade plate that is applied in the tibial plateau rear side.
(2) background technology
Fracture of the tibial plateau is common intra-articular fracture, often is due to the high-octane violence.Report fracture of the tibial plateau such as Watson account for about 1% of whole fracture, and platform fracture in the outside accounts for 55%～70%, and inboard platform fracture accounts for 10%～23%, and the medial and lateral platform is fractured simultaneously and accounted for 10%～30%.Severe patient also can merge meniscus or knee joint peripheral ligament injury.Because of knee joint inner structure complexity, and be the heavy burden joint, cause the knee joint function obstacle so cause various complication easily after injured.Though there is not generally acknowledged therapeutic regimen at present, along with deepening continuously that fracture of the tibial plateau is studied, Therapeutic Method is also in progressively improvement and perfect.But along with increasing of high energy damage in recent years, the pathological change of fracture of the tibial plateau also becomes increasingly complex, and causes treatment very difficult.The subject matter that exists is that fracture is difficult to satisfied resetting, and the fracture fragments instability can not be effectively fixing, is difficult to early exercise and postoperative infection.
Fracture of the tibial plateau is divided three classes according to the direction of external force: the outer condylar fracture due to the stress of turning up of 1. serving as reasons at most, system is subjected to when standing due to violence strike or the indirect external force, as when high falling lands, knee joint is for turning up position or external force due to the femoral lateral condyle bump tuberosity of bitia,external.2. pressure at right angle, to the conduction of tibia straight line, then femur two condyles impact tibial plateau downwards to external force along femur, can cause that the inside and outside condyle of tibia fractures simultaneously, can form " Y " type or T-shape fracture, and displacement downwards.3. turn over stress in, cause in the femur condyle and press down tibial plateau and cause the tuberosity of tibia,internal fracture, cause inwardly below displacement of sclerite, subside.
Fracture of the tibial plateau is an intra-articular fracture, and treatment should be followed the intra-articular fracture Therapeutic Principle.The Therapeutic Principle comprises making sink and the sclerite of splitting resets, recover articular surface the smooth and line of force correctly.Correct in knee or interior talipes varus.Recover the function in joint to greatest extent.Reduce the generation of traumatic arthritis.Bone grafting after anatomical reduction, strong internal fixation and collapsed fracture reset is considered to the satisfied three elements of fracture of the tibial plateau treatment.
At present, quite ripe to the inside and outside surgical treatment of fracture technology of tibial plateau, internal fixation material is selected very many, but because the particularity of tibial plateau rear side anatomical structure, treatment tibial plateau rear side fracture does not form unified, complete therapeutic scheme as yet, does not also have the blade plate of specialized application at the tibial plateau rear side.Carry out support fixation after having the scholar to attempt adopting appropriate pre-bendings such as reconstruction plate, T steel plate, small-sized T steel plate and Herba Trifolii Pratentis steel plate clinically, but these blade plates relatively are applicable to the tibial plateau inboard and the outside, but can't meet tibial plateau rear side surface feature, when tibial plateau rear fracture or interior outside platform fracture rearward were shifted, just there were various defectives in these steel plates.Exist shortcomings such as steel plate is blocked up, moulding difficulty as the T-steel plate, be difficult to form effectively and fix, and the reconstruction plate longitudinal holding power is limited, be difficult to avoid in the fracture healing process because bone resorption and muscle ligament pulling force cause articular surface to sink; L shaped steel plate has satisfied support force, uncontrollable fracture lateral displacement; Other a little shaped steel plates also exist and are difficult to accurately mouldingly attach with fracture end, if problems such as inadequate moulding then armor plate strength weakens, as a whole, in these inside-fixtures all can not meet behind the proximal tibia that there are differences, the morphosis of the outside, back, cause clinical effectiveness not satisfied.
The day for announcing be on April 16th, 2003 patent No. be 01226324.9 Chinese utility model patent tibial plateau syntripsis blade plate, subordinate side, L termination at existing L shaped steel plate sets up alar part, alar part is provided with screw, T-steel plate and L shaped steel plate organically are bonded together, integrate both advantages.But these blade plates relatively are applicable to the tibial plateau inboard and the outside, when tibial plateau rear fracture or interior outside platform fracture rearward are shifted, because the tibial plateau rear has important nerve, blood vessel to pass through, and the horizontal hone lamella of existing blade plate upper end can have a strong impact on these nerves and blood vessel.The blade plate of specialized application at the tibial plateau rear side also do not appear at present.
(3) summary of the invention
In order to overcome the deficiency of above-mentioned technical problem, the invention provides the blade plate of a kind of specialized application at the tibial plateau rear side.
The technical scheme that the present invention solves its technical problem is:
A kind of tibial plateau rear-side anatomical-form bone fracture plate, comprise and the key suitable handle shape part of tibia, the front end of described handle shape part extends first support plate forward and thereby second support plate forms the blade plate integral body that is " Y " shape, inboard suitable behind described first support plate and the tibial plateau, the outside is suitable behind second support plate and the tibial plateau, and is equipped with screw on handle shape part, first support plate and second support plate.
The tibial plateau rear side has important nerve, blood vessel to pass through, and the blade plate top of Y type has reserved the space just for these nerves and blood vessel, thereby reduces the influence to them.During use, the handle shape partly is close to the tibia backbone, first support plate is close to behind the tibial plateau inboard, outside second support plate is close to behind the tibial plateau, according to operation plan in each screw place, selectivity is screwed into forcing screw or lag screw, the skew that oval-shaped screw can make the position of screw produce certain angle, thereby produce pressurization to fracture, and blade plate cooperates lag screw to produce powerful axial compressive force to fracture, bending resistance simultaneously and stability of rotation also increase greatly, and therefore the fixed tibial platform rear is fractured effectively, rearward be shifted and subside also can in addition interior outside platform fracture effective support effect is provided.
As improvement, be respectively equipped with angle between the plane at the plane at the plane at the first support plate place, the second support plate place and handle shape part place.Because the dissection profile at tibial plateau rear is irregular, metaphysis transitional areas camber is bigger, interior behind the proximal tibia, posterolateral corner there are differences, the shape of blade plate must be suitable with the shape of tibia, thus between this blade plate handle shape plane, part place and plane, the first support plate place, the plane, the second support plate place respectively design angle is arranged.As preferably, the angle between first plane, support plate place and the plane, handle shape part place is 155 °, and the angle between second plane, support plate place and the plane, handle shape part place is 160 °.155 °, 160 ° are provided with according to Chinese's normal tibial proximal bone rear side anatomical morphology construction features, and when concrete the use, the doctor can finely tune according to each personal feature diagonal angle degree.
As preferably, the screw on the handle shape part be oval, oval length direction and handle shape length direction partly in the same way, the screw on described first support plate and second support plate is a circle.Certain automatic pressurization is played in displacement mutually between screw and the slotted eye under action of gravity.
As preferably, the cross section of handle shape part is curved.Handle shape part is arranged to cambered surface in order to mate key shape.
As improvement, the width of the head of first support plate is 160 ° of angles greater than the width of the first support plate other parts between first plane, support plate head place and the plane, the first support plate other parts place.The head of first support plate is inboard after near tibial plateau, and the surface of broad is inboard after can the more tibial plateau of support, and head has knuckle with other parts, to mate inboard shape behind the tibia.
The first support plate length is greater than the length of second support plate, and the length of handle shape part is greater than the length of first support plate.
The fork angle is 15 °～60 ° about between first support plate and second support plate.About first support plate and second support plate fork angle too little just simultaneously behind the effective support fixed tibial platform in, the outside, back fracture, diverge angle and be difficult to mate tibial plateau rear side anatomical morphology structure too greatly again.
Beneficial effect of the present invention is: " Y " of the present invention type blade plate is specifically designed to the tibial plateau rear side, can reduce influence to tibial plateau nervus posterior-lateralis, blood vessel, reach the tibial plateau posterior bony is folded into the strong internal fixation of row, provide effective supporting for platform fracture in medial and lateral rearward is shifted and subsides.This blade plate can attach with surface of bone preferably in addition, its far-end is " Y " shape, coverage rate is bigger, hold is firm behind the pedicle screw of nail hole, increased the stability of internal fixation, help postoperative and carry out functional exercise in early days, tibial plateau rear-side anatomical-form bone fracture plate of the present invention all adopts the inboard operative approach in back simultaneously, places simple, convenient in operation technique.
(4) description of drawings
Fig. 1 is a main TV structure sketch map of the present invention;
Fig. 2 is a side-looking structural representation of the present invention.
(5) specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail
As shown in Figure 1, a kind of tibial plateau rear-side anatomical-form bone fracture plate, comprise and the key suitable handle shape part 1 of tibia, the front end of handle shape part 1 extends first support plate 3 forward and thereby second support plate 2 forms the blade plate integral body that is " Y " shape, inboard suitable behind first support plate 3 and the tibial plateau, the outside is suitable behind described second support plate 2 and the tibial plateau, as shown in Figure 2, first support plate, second support plate all is angle with handle shape part and arc is connected, angle between the first support plate plane, 3 place and the plane, handle shape part 1 place is 155 °, and the angle between the second support plate plane, 2 place and the plane, handle shape part 1 place is 160 °.Handle shape part is in order to mate the key shape of tibia, and its lateral cross section is an arc.These angles are provided with according to Chinese's normal tibial proximal bone rear side anatomical morphology construction features, and blade plate can be finely tuned according to each tibia different characteristic when concrete the use.
The width of the first support plate head 4 is greater than the width of the first support plate other parts, and the length of first support plate is greater than the length of second support plate, and the length of handle shape part is greater than the length of first support plate, and the length of handle shape part can be regulated as required.The screw 6 of handle shape part be oval, the length direction of screw with handle shape length direction partly in the same way, and screw all is positioned on the same centrage.Screw 5 on first support plate and second support plate is circular, and the screw on second support plate also is positioned on the same centrage.The fork angle is 15 °～60 ° about first support plate and second support plate.
The present invention in use, blade plate handle shape partly is close to tibia rear side backbone, and first support plate is close to behind the tibial plateau inboard, and second support plate is close to behind the tibial plateau on the relevant position, the outside, in each screw place, selectivity is screwed into forcing screw or lag screw according to operation plan.
Claims (8)
1. tibial plateau rear-side anatomical-form bone fracture plate, it is characterized in that: comprise the handle shape part (1) key suitable with tibia, the front end of described handle shape part (1) extends first support plate (3) and second support plate (2) forward thereby formation is the blade plate integral body of " Y " shape, inboard suitable behind described first support plate (3) and the tibial plateau, the outside is suitable behind second support plate (2) and the tibial plateau, and is equipped with screw (5,6) on handle shape part, first support plate and second support plate.
2. tibial plateau rear-side anatomical-form bone fracture plate according to claim 1 is characterized in that described handle shape part (1) plane, place and described first support plate (3) plane, place, second support plate (2) are respectively equipped with angle between the plane, place.
3. tibial plateau rear-side anatomical-form bone fracture plate according to claim 2, it is characterized in that the angle between described first support plate (3) plane, place and handle shape part (1) plane, place is 155 °, the angle between the plane, place of second support plate (2) plane, place and handle shape part (1) is 160 °.
4. tibial plateau rear-side anatomical-form bone fracture plate according to claim 1, it is characterized in that the screw (6) on the described handle shape part is ellipse, the length direction of oval length direction and handle shape part in the same way, the screw (5) on described first support plate and second support plate is a circle.
5. according to claim 1 or 2 or 3 or 4 described tibial plateau rear-side anatomical-form bone fracture plates, it is characterized in that the cross section of described handle shape part is curved.
6. tibial plateau rear-side anatomical-form bone fracture plate according to claim 5, the width of head (4) that it is characterized in that described first support plate is 160 ° of angles greater than the width of the first support plate other parts between first plane, support plate head place and the plane, the first support plate other parts place.
7. tibial plateau rear-side anatomical-form bone fracture plate according to claim 6 is characterized in that the length of described first support plate (3) length greater than second support plate (2), and the length of handle shape part is greater than the length of first support plate.
8. tibial plateau rear-side anatomical-form bone fracture plate according to claim 7, it is characterized in that between described first support plate and second support plate about the fork angle be 15 °～60.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100966374A CN101507653A (en) | 2009-03-12 | 2009-03-12 | Tibial plateau rear-side anatomical-form bone fracture plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100966374A CN101507653A (en) | 2009-03-12 | 2009-03-12 | Tibial plateau rear-side anatomical-form bone fracture plate |
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| CN101507653A true CN101507653A (en) | 2009-08-19 |
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| CNA2009100966374A Pending CN101507653A (en) | 2009-03-12 | 2009-03-12 | Tibial plateau rear-side anatomical-form bone fracture plate |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102525634A (en) * | 2012-01-20 | 2012-07-04 | 太原理工大学 | Clinical type bone plate for distal tibial fracture |
| CN102525631A (en) * | 2010-12-28 | 2012-07-04 | 北京国人骨科医疗器械有限公司 | Tibial plateau posterolateral bone fracture plate for fracture at attachment of posterior cruciate ligament |
| CN104840242A (en) * | 2015-05-03 | 2015-08-19 | 刘乐 | Tibia bone fracture plate of medical equipment for orthopedic surgery |
| CN108926381A (en) * | 2018-08-24 | 2018-12-04 | 赵意华 | Tibial plateau locking bone fracture plate |
| CN112998834A (en) * | 2021-02-25 | 2021-06-22 | 中国人民解放军总医院第四医学中心 | Tibial plateau posterior surgical steel plate |
-
2009
- 2009-03-12 CN CNA2009100966374A patent/CN101507653A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102525631A (en) * | 2010-12-28 | 2012-07-04 | 北京国人骨科医疗器械有限公司 | Tibial plateau posterolateral bone fracture plate for fracture at attachment of posterior cruciate ligament |
| CN102525631B (en) * | 2010-12-28 | 2014-02-19 | 北京国人骨科医疗器械有限公司 | Tibial plateau posterolateral bone fracture plate for fracture at attachment of posterior cruciate ligament |
| CN102525634A (en) * | 2012-01-20 | 2012-07-04 | 太原理工大学 | Clinical type bone plate for distal tibial fracture |
| CN104840242A (en) * | 2015-05-03 | 2015-08-19 | 刘乐 | Tibia bone fracture plate of medical equipment for orthopedic surgery |
| CN108926381A (en) * | 2018-08-24 | 2018-12-04 | 赵意华 | Tibial plateau locking bone fracture plate |
| CN112998834A (en) * | 2021-02-25 | 2021-06-22 | 中国人民解放军总医院第四医学中心 | Tibial plateau posterior surgical steel plate |
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Open date: 20090819 |