CN202426636U - Trapezoidal locking steel plate with radian for treating femoral neck fracture - Google Patents
Trapezoidal locking steel plate with radian for treating femoral neck fracture Download PDFInfo
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- CN202426636U CN202426636U CN2012200056319U CN201220005631U CN202426636U CN 202426636 U CN202426636 U CN 202426636U CN 2012200056319 U CN2012200056319 U CN 2012200056319U CN 201220005631 U CN201220005631 U CN 201220005631U CN 202426636 U CN202426636 U CN 202426636U
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- steel plate
- locking steel
- trapezoidal
- trapezoidal locking
- fracture
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Abstract
The utility model discloses a trapezoidal locking steel plate with a radian for treating femoral neck fracture, wherein the upper end of the trapezoidal locking steel plate is narrow, the lower end of the trapezoidal locking steel plate is wide, a trapezoidal surface fit with a rear end of a femur on the trapezoidal locking steel plate is provided with a radian, the center position of the trapezoidal locking steel plate is provided with a center hole, the trapezoidal locking steel plate is provided with six locking holes, the directions of the six locking holes and the center hole are parallel to each other, the six locking holes are divergently arranged toward three directions which are the upper end, the left lower end and the right lower end by adopting the center hole as a center, each direction is provided with two locking holes, and the locking holes are provided with locking screws. The trapezoidal locking steel plate with the radian for treating femoral neck fracture achieves to completely fix screws in parallel in a fixed treatment link of a femoral neck fracture surgery by arranging the locking holes capable of fixing the screws in parallel on the trapezoidal locking steel plate, the trapezoidal locking steel plate can be placed positively and reversely, and is provided with the radian to be matched with the shape of the rear end of the femur, thereby leading the screws not to be easily dropped out. The trapezoidal locking steel plate with the radian for treating femoral neck fracture is simple in surgical operation, less in time consuming, reliable in fixing, and rapid in postoperative recovery.
Description
Technical field
This utility model belongs to technical field of medical instruments, is specifically related to a kind of trapezoidal locking steel plate of treating the band radian of fracture of femoral neck.
Background technology
Because the development of Modern Traffic transport service and building industry, the patient of fracture of femoral neck is more and more.Fracture of femoral neck is common damage, because its local blood supply problem is prone to nonunion and femur head necrosis take place, it is 10%～30% and 20%～40% that the disunion rate and the femur head necrosis rate of material report fracture of femoral neck are arranged.For many years; Many scholars explore its Therapeutic Method; List has just carried out multiple transformation with regard to its internal fixation method; From the earliest three wing nail, many Kirschner wires, many drive screws, up till now pressurization hollow screw, for the fracture of femoral neck patient, what how to avoid bone does not connect and femur head necrosis is the emphasis and the difficult point of treatment.Therefore, the Therapeutic Principle strives for anatomical reduction, firm internal fixation, reduces local blood fortune and destroys, and improves perfusion, prevents the generation of ischemic necrosis of femoral head, so the operative treatment of fracture of femoral neck need reach following requirement:
1. the reduction of the fracture.Reduction of the fracture quality is the key factor that affects the treatment, and must reach anatomical reduction as far as possible.Reduction with good is the basis of union of fracture.Neck of femur the place ahead cortical bone is the most important anatomic landmark of open reduction, avoid destroying its integrity.Sometimes be difficult to accomplish anatomical reduction in the practical operation, in general, slight turning up, lean forward is acceptable; Particularly rear wall cortex is pulverized the patient; And turn in any type of, hypsokinesis all can not accept, but this step is as long as we operate under X-ray machine, the fine completion of ability.
2. internal fixation.What the fracture of femoral neck internal fixation was the most frequently used is hollow forcing screw, and screw is thinner, supplies influence less to capital blood, fixing more firm, is the first-selected internal fixation material of the fresh fracture of femoral neck of current treatment.Hollow forcing screw provides the pressurization of fracture site, and the femoral head inner high voltage has been avoided in the inner hollow decompression.The reasonable placement of internal fixation to keep reset most important; It is in neck of femur, to be inverted triangle to lay 3 pieces of hollow nails that present most scholar uses 3 pieces of hollow nail internal fixation treatment fracture of femoral neck, and optimal nail position should be 1 piece and be positioned at the neck of femur center that 1 piece is passed through bigelow's septum; In addition 1 piece near neck of femur rear cortex; Make it consistent with tension force bone trabecula and compression trabeculae direction respectively as far as possible, 3 pieces of screws are formed the three-dimensional fixedly fracture end of inverted triangle jointly, have tension stress, shearing resistance and anti-rotation performance; Can safeguard the three-dimensional stability of fracture, constitute a complete mechanical system.Require 3 pieces of parallel placements of hollow nail simultaneously, fracture end produces the extruding of sliding after the activity of trouble limb, dynamic pressurized fracture end effect promotes fracture end to heal.The scholar proposes to use pad to help fracture end static(al) pressurization to promote union of fracture, and its screw length should reach that 5～10mm is a standard under the femoral head cartilage, has navigator and reaches above-mentioned specification requirement more easily.Operation as early as possible helped recovering the blood confession after fracture of femoral neck was hindered.3 pieces of parallel screws are 3 D stereo to be fixed, and meets biomechanical principle, both can be to shearing resistance, and again can be to warping resistance power.The isosceles triangle that falls is that upper limb is a tension side because the structure of neck of femur determines that neck of femur is wide at the top and narrow at the bottom, and lower edge is on the pressure side, so row is the 2 pieces of screws in top, and the 1 piece of screw in below, triangle is the most stable.Also have more scholar to recommend equilateral triangle to put nail, about just or inverted triangle put the nail the two curative effect indifference is arranged, wait further research.But any is arranged is sure; Promptly three hollows must be parallel placements; Have only the parallel fracture site persistent pressure that just helps, only parallel and screw thread is crossed under the situation of fracture line at 3 pieces of screws, and muscle isometric contraction, joint motion, heavy burden could produce the pressurization that continues in the broken ends of fractured bone.Welt is that triangle is stable more greatly more because the triangle of internal fixation is bigger, and fixedly strength is strong more.Most scholars recommend 3 pieces of screws to be the inverted triangle arrangement, and screw nail tail should not be lower than lesser trochanter, otherwise can increase the risk of stress fracture under place, the nail hole rotor.
3. bear a heavy burden.Suffer from limb and bear a heavy burden and to increase gradually according to taking the photograph X line and CT sheet prompting union of fracture situation, before the femoral head myocardial revascularization, bear a heavy burden down in early days, be prone to collapse of the femoral head, influence union of fracture with downright bad.So, avoid suffering from too early, the too much heavy burden of limb before the union of fracture.Postoperative 8 week back as union of fracture sign occurs, holding up crutches to leave the bed to hinder limb does not have the heavy burden activity, postoperative is avoided suffering from limb and is born a heavy burden in 3 months, postoperative is held up after 3 months and being turned the progressively light walking of bearing a heavy burden.
As long as the reduction of the fracture is satisfied, the parallel placement of hollow forcing screw has then solved the healing problems of fracture of femoral neck to a great extent; Operation is accurate, and the fracture end pressurization is reliable, and internal fixation is strong; Postoperative patient can early ambulant; Shortened bed rest time greatly, reduced the generation of fracture complication, made patient be able to very fast rehabilitation.
The method of traditional fixed fracture of femoral neck is to fix with hollow screw, under the help of guider, squeezes into Kirschner wire earlier; With core drill boring, be screwed into screw more then, this method is because be that the free-hand guider of controlling of patient is squeezed into Kirschner wire, so often be not parallel; And cross one another sometimes, make the fracture of femoral neck end bear different stress, cause the fracture of femoral neck internal fixation to lose efficacy; Even if staple is parallel, withdraw from but still have many patients screw can occur, also can cause operative failure.
Summary of the invention
The purpose of this utility model provides a kind of trapezoidal locking steel plate of treating the band radian of fracture of femoral neck, and the problem that having solved screw in the existing fixed fracture of femoral neck method can not secured in parallel, be prone to withdraw from promotes union of fracture to greatest extent.
The technical scheme that this utility model adopted is that a kind of trapezoidal locking steel plate of treating the band radian of fracture of femoral neck comprises trapezoidal locking steel plate; Narrow lower end, trapezoidal locking steel plate upper end is wide; The trapezoidal faces that fits with near end of thighbone on the trapezoidal locking steel plate has radian, and trapezoidal locking steel plate center is provided with centre bore, is set with 6 lock holes on the trapezoidal locking steel plate; The direction of 6 lock holes and centre bore is parallel to each other; With the centre bore be center, 6 lock holes to upper end, left lower end, three directional divergence settings of bottom righthand side, each direction is provided with 2 lock holes, lock hole is provided with lock screw.
The characteristic of this utility model also is,
The head and the tail two ends of lock screw are provided with screw thread.
The beneficial effect of this utility model is; Through on trapezoidal locking steel plate, be provided with can the secured in parallel screw lock hole, be implemented in the fracture of femoral neck operation internal fixation treatment link screw secured in parallel fully, and trapezoidal locking steel plate can be placed just all; Have radian; With coupling near end of thighbone shape, make screw be difficult for withdrawing from, operation technique is simple, consuming time less, fixing reliably, post-operative recovery is fast.
Description of drawings
Fig. 1 is the structural representation of trapezoidal locking steel plate of the band radian of this utility model treatment fracture of femoral neck.
Fig. 2 is the user mode figure of trapezoidal locking steel plate of the band radian of this utility model treatment fracture of femoral neck.
Fig. 3 is the structural representation of lock screw in this utility model.
Among the figure, 1. trapezoidal locking steel plate, 2. lock hole, 3. centre bore, 4. neck of femur, 5. fracture end, 6 lock screw.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment this utility model is elaborated.
The structure of the trapezoidal locking steel plate of the band radian of this utility model treatment fracture of femoral neck, as shown in Figure 1, comprise trapezoidal locking steel plate 1.Narrow lower end, trapezoidal locking steel plate 1 upper end is wide, and the trapezoidal faces that fits with near end of thighbone on the trapezoidal locking steel plate 1 has radian.Trapezoidal locking steel plate 1 center is provided with centre bore 3; Be used for fixing Kirschner wire; The direction that on trapezoidal locking steel plate 1, is set with 2,6 lock holes of 6 lock holes 2 and centre bore 3 is parallel to each other, and is that center, 6 lock holes 2 are to upper end, left lower end, three directional divergence settings of bottom righthand side with centre bore 3; Each direction is provided with 2 lock holes 2, and lock hole 2 is provided with lock screw 6.The structure of lock screw 6 is as shown in Figure 3, and the head and the tail two ends of lock screw 6 are provided with screw thread.
The user mode of the trapezoidal locking steel plate of the band radian of this utility model treatment fracture of femoral neck is as shown in Figure 2, after the satisfaction that resets, during the fracture of femoral neck internal fixation; Pass from the centre bore 3 that trapezoidal locking steel plate 1 is provided with Kirschner wire earlier, get into neck of femur 4 centers, temporary fixed; From 2 borings of six lock holes,, confirm that fixing interior three lock holes 2 still are outer three lock holes 2 then according to the size of neck of femur diameter; Perhaps cross borehole, six lock hole 2 its directions are parallel, with neck of femur 4 central axes; Become 135 degree angles with the femoral shaft central shaft, be with 10 degree top rakes, after the boring; Be screwed into lock screw 6, the screw thread of lock screw 6 will keep passing fracture end 5, and operation finishes.
The trapezoidal locking steel plate of the band radian of this utility model, simple to operate, consuming time few, fixing reliable.Solved the problem of screw secured in parallel, fracture end is evenly pressurizeed; Solve withdrawing from of screw, no matter how movable hip joint is, screw all can not occur and withdraw from; Can positive and negative placement steel plate, just or instead all can put hollow screw; Can make screw be placed on maximum welt triangle.Accomplish above-mentioned 4 points, then can promote union of fracture to greatest extent, well solved the difficult problem of clinician in this field for many years.
Claims (2)
1. trapezoidal locking steel plate of treating the band radian of fracture of femoral neck; It is characterized in that; Comprise trapezoidal locking steel plate (1), narrow lower end, said trapezoidal locking steel plate (1) upper end is wide, and the trapezoidal faces that said trapezoidal locking steel plate (1) is gone up and near end of thighbone fits has radian; Said trapezoidal locking steel plate (1) center is provided with centre bore (3); Be set with 6 lock holes (2) on the said trapezoidal locking steel plate (1), 6 lock holes (2) are parallel to each other with the direction of centre bore (3), are that center, 6 lock holes (2) are to upper end, left lower end, three directional divergence settings of bottom righthand side with centre bore (3); Each direction is provided with 2 lock holes (2), and said lock hole (2) is provided with lock screw (6).
2. the trapezoidal locking steel plate of the band radian of treatment fracture of femoral neck according to claim 1 is characterized in that, the head and the tail two ends of said lock screw (6) are provided with screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200056319U CN202426636U (en) | 2012-01-06 | 2012-01-06 | Trapezoidal locking steel plate with radian for treating femoral neck fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200056319U CN202426636U (en) | 2012-01-06 | 2012-01-06 | Trapezoidal locking steel plate with radian for treating femoral neck fracture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202426636U true CN202426636U (en) | 2012-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200056319U Expired - Fee Related CN202426636U (en) | 2012-01-06 | 2012-01-06 | Trapezoidal locking steel plate with radian for treating femoral neck fracture |
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| Country | Link |
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| CN (1) | CN202426636U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3412230A4 (en) * | 2016-02-04 | 2019-03-13 | Hua Chen | Femoral neck inner side support structure and femoral neck fracture fixing device |
| CN113786235A (en) * | 2021-08-16 | 2021-12-14 | 重庆医科大学 | Cross inverted triangle device for embedding compression screw for treating femoral neck fracture |
-
2012
- 2012-01-06 CN CN2012200056319U patent/CN202426636U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3412230A4 (en) * | 2016-02-04 | 2019-03-13 | Hua Chen | Femoral neck inner side support structure and femoral neck fracture fixing device |
| CN113786235A (en) * | 2021-08-16 | 2021-12-14 | 重庆医科大学 | Cross inverted triangle device for embedding compression screw for treating femoral neck fracture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120912 Termination date: 20150106 |
|
| EXPY | Termination of patent right or utility model |