CN205548661U - Steel sheet is united to post around improved generation acetabular bone - Google Patents
Steel sheet is united to post around improved generation acetabular bone Download PDFInfo
- Publication number
- CN205548661U CN205548661U CN201620218506.4U CN201620218506U CN205548661U CN 205548661 U CN205548661 U CN 205548661U CN 201620218506 U CN201620218506 U CN 201620218506U CN 205548661 U CN205548661 U CN 205548661U
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- mainboard
- steel plate
- steel sheet
- acetabular bone
- plate
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Abstract
The utility model discloses a steel sheet is united to post around improved generation acetabular bone, this combination steel sheet comprises mainboard, parastyle steel sheet and the baffle that fuses, wherein, the mainboard on open at least and have two screw holes that are used for connecting guide sleeve, the screw hole is arranged along arciform reason from the near arciform reason face that is close to the iliac fossa, and the axis of each screw hole is all through the sclerotin sensing ischial tuberosity between acetabular bone nest and the square district, the parastyle steel sheet extend to superior ramus of pubis by one end of mainboard along the surface of the near arciform reason face of iliac fossa, the parastyle steel sheet on open and to have a plurality of parastyle set screw holes of arranging along the parastyle steel sheet, the baffle form by one side downwarping of mainboard and parastyle steel sheet joint portion and the square district that extends to more than the ischium sour jujube, the baffle on be equipped with the logical groove that at least twice self catcher buttress portion extends to the afterbody. The utility model has the advantages of the baffle is easy to be moulding, on it set screw to put into the position adjustable.
Description
Technical field
The present invention relates to a kind of surgical instruments, be specifically related to the fixation steel plate of acetabular bone and peripheral structure, this connection
Close steel plate and be applicable to the fracture repair of acetabular anterior column and rear pillar.
Background technology
Acetabular bone and peripheral structure can be divided into front pillar and rear pillar, front pillar by above crista iliaca diagonally forward lower section, warp
Pubic branch terminates in pubic symphysis, is made up of part ilium and pubis；Rear pillar by greater sciatic notch in acetabular bone
The heart is to ischial tuberosity, including the vertical component of ischium and the part ilium that is connected with ischium；Front and back post is in falling
Y-shaped, as cradle shape has acetabular bone in arms, meets at squared region at medial surface, can prevent the inside sidesway of hip joint
Position.Fracture of acetabulum is divided into 2 big classes: simple and complexity, every big class is divided into again 5 subclass, at this
In 10 kinds of classification of fracture, although the most individually definition squared region fracture, but it is (single to be in addition to part Fracture Simple
Pure antetheca, rear wall, part front pillar are fractured) outward, other fracture all can involve squared region.
Operative treatment is considered as the first-selected therapeutic scheme of the fracture of acetabulum of displacement, operative treatment of acetabular fractures
Principle be the good recovery by the anatomical reduction in weight-bearing joints face being realized function of joint, the standard of reset
Really property decides the effect of operative treatment.
For involving the fracture of acetabulum of front pillar and rear pillar simultaneously, traditional treatment means is by single rear
K-L approach uses double steel plate to fix rear pillar；Or through anterior-posterior, front pillar, rear pillar are used respectively
Reconstruction plate is fixed.But all there is certain deficiency in above two treatment means, as used former hands
Often occur that postoperative reset is lost after section is fixing, cause shifting again of sclerite, solid in final appearance
Fixed inefficacy.Fixing according to latter means, forward and backward post is simply fixed respectively, front and back post it
Between be also a lack of contact, and owing to operation wound is big, be easily caused that intraoperative hemorrhage is many, increase and infect
The incidence rate of the complication such as probability and heterotopic ossification following surgical, the most still causes greatly the function of joint of patient
Harmful effect.
The application for a patent for invention of Publication No. CN104188716A discloses post associating steel plate before and after one,
This associating steel plate is made up of the mainboard being connected, Anterior column plate and baffle plate, and wherein said mainboard is up to
Have two screwed holes connecting rear pillar lock screw sleeves less, coordinate the external pilot sleeve can be at this two spiral shell
Pit is inserted rear pillar lag screw, is used for fixing rear pillar fracture；Described Anterior column plate is by the one of mainboard
Head extends to superior ramus of pubis along the surface in the near arciform edge face of iliac fossa；Have some on described Anterior column plate
Along the front pillar fixing screw hole of Anterior column plate length direction arrangement, fixing screw is coordinated to can be used for fixing front pillar
Fracture.The squared region that described baffle plate was bent downwardly and extended to more than ischial spine by the side of mainboard is formed,
Baffle plate is attached at squared region, insert screw fixing after, can consolidate squared region and stop squared region sclerite to
Intrapelvic displacement.
The associating steel plate of above-mentioned patent application publication also has a following deficiency:
1, it is the both sides up and down that note overlays on arciform edge respectively due to mainboard and baffle plate, the upper and lower both sides of arciform edge
The angle that formed of bone surface between Different Individual, there is certain difference, therefore must in operation
Baffle plate is carried out the most moulding less, and owing to the bigger intensity of baffle plate area coverage is of a relatively high, this causes
Moulding difficulty is big, virtually adds operating time.
2, the fixing screw hole position on baffle plate and angle are all fixing, carry out moulding to baffle plate in operation
After inevitably result in the ideal position that fixing screw hole deviation is preset, and then fixing screw cannot be inserted
To ideal position, and owing to the sclerotin of the acetabular bone squared region at baffle plate place is relatively thin, intensity is relatively low, if fixing
Screw implantation site is undesirable, may result in fixing screw and passes to hip joint from acetabular fossa.
Summary of the invention
Technical problem to be solved in the utility model there is provided post associating steel before and after a kind of modified model acetabular bone
Plate, it is the most moulding that this associating steel plate has baffle plate, and baffle plate is fixed the adjustable advantage of screw position, certain journey
Reduce operating difficulty on degree, improve fixing reliability.
This utility model solves the technical scheme of above-mentioned technical problem:
Post associating steel plate before and after a kind of modified model acetabular bone, this associating steel plate is by the mainboard being connected, front pillar
Steel plate and baffle plate are constituted, wherein,
At least have on described mainboard two for the screwed hole connecting pilot sleeve, described screwed hole from
Arrange along arciform edge near the near arciform edge face of iliac fossa, the axis of each screwed hole all through acetabular fossa with square
Sclerotin between district points to ischial tuberosity；The lower surface of described mainboard is the nearly bow with its iliac fossa covered
The curved surface matched near one section of bone surface of sacroiliac joint leading edge on shape edge face；
Described Anterior column plate is extended on pubis along the surface in the near arciform edge face of iliac fossa by the one of mainboard
Prop up, and lower surface is the curved surface matched with the near arciform edge face of its iliac fossa covered；Described front pillar
Some front pillar fixing screw holes along Anterior column plate arrangement are had on steel plate；
It is characterized in that,
Described baffle plate by the side of mainboard Yu Anterior column plate joint portion be bent downwardly and extend to ischial spine with
On squared region formed, and lower surface is the one section of arciform edge of genesis before sacroiliac joint covered with it
Surface and acetabular bone ischial spine more than the curved surface that matches of surface, squared region；Set on described baffle plate
There is the groove that at least twice self catcher buttress portion rearwardly extends.
Post associating steel plate before and after a kind of modified model acetabular bone described in the utility model, wherein, described front pillar steel
Plate deflects away between two front pillar fixing screw holes the most adjacent on the dual-side of baffle part to be provided with semicircle lacking
Mouthful.
Post associating steel plate before and after a kind of modified model acetabular bone described in the utility model, wherein, described front pillar is solid
Determining screw hole is 3～8, a diameter of 3.5mm, and is arranged in a row along arciform edge.
Post associating steel plate before and after a kind of modified model acetabular bone described in the utility model, wherein, described associating steel
Plate uses medical stainless steel or titanium alloy to make.
This utility model has the advantage that relative to prior art
1, the stress that squared region bone piece is born is less, it is not necessary to strong fixing, this utility model is by baffle plate
Upper setting reduces the intensity of baffle plate from the groove that the root of baffle plate rearwardly extends, and reduces baffle plate in art
Moulding difficulty；
2, baffle plate is divided into some strip plate bodys by groove, can be moulding to each strip plate body respectively, makes gear
Plate is overall more tight with the laminating of squared region, adds the plasticity of baffle plate.
3, may select the optional position in groove and insert fixing screw to consolidate squared region, solve due to
Baffle plate moulding makes the difficult problem that the implantation site of fixing screw is undesirable.
Accompanying drawing explanation
Fig. 1～3 is the structural representation of a detailed description of the invention of associating steel plate described in the utility model
Figure, wherein, Fig. 1 is front view, and Fig. 2 is top view, and Fig. 3 is left view.
Fig. 4 is Fig. 1～the perspective view of 3 illustrated embodiments.
Fig. 5 is the use state diagram of Fig. 1～3 illustrated embodiments.
Detailed description of the invention
See Fig. 1 and 4, before and after the modified model acetabular bone in this example post associating steel plate by the mainboard 1 being connected,
Anterior column plate 2 and baffle plate 3 are constituted, and material is medical stainless steel.
See Fig. 1～4, and combine Fig. 5, mainboard 1 has two for the spiral shell connecting pilot sleeve 8
Pit 4, this screwed hole 4 arranges along arciform edge 11 in the near arciform edge face 10 of iliac fossa, and, each screw thread
The axis in hole 4 all sclerotin between acetabular fossa and squared region 12 point to ischial tuberosity 13；Screwed hole 4
Axis direction is fixed, and coordinates pilot sleeve 8, can insert guide pin 9 to acetabular posterior column accurately, sees through perspective
Guide pin 9 can be pulled out after guide pin 9 position is good, be placed into lag screw and fix acetabular posterior column.Described mainboard
The lower surface of 1 is one section of sacroiliac joint leading edge close with on the near arciform edge face 10 of its iliac fossa covered
The curved surface that bone surface matches.
Seeing Fig. 1～4, and combine Fig. 5, described Anterior column plate 2 is by one of mainboard 1 near along iliac fossa
The surface in arciform edge face 10 extends to superior ramus of pubis 14；Its lower surface is the nearly bow with its iliac fossa covered
The curved surface that shape edge face 10 matches；Have 5 on Anterior column plate 2 to arrange along Anterior column plate 2 length direction
Front pillar fixing screw hole 5, described front pillar fixing screw hole 5 is the unthreaded hole of countersunk head, and aperture is 3.5mm,
Except in addition to two front pillar fixing screw holes of mainboard 1, between any two adjacent anterior column lag screw holes 5
The side of Anterior column plate is provided with semicircular indentations 7, in order to carry out the most moulding to Anterior column plate 2 in art.
Art can select suitable front pillar to fix screw according to different front pillar fracture line positions, pelvic structures size
Fixing screw is inserted in hole 5.
Seeing Fig. 1～2, described mainboard 1 is provided with for fracturing with squared region with the joint portion of Anterior column plate 2
Circular connecting hole 16 that reduction instrument is connected and square attaching apertures 17.
Seeing Fig. 1 and 4, and combine Fig. 5, described baffle plate 3 is by mainboard 1 and Anterior column plate 2 joint portion
Side is bent downwardly and extends to the squared region 12 of ischial spine more than 15 and formed, its lower surface for its institute
The surface of one section of genesis arciform edge 11 before sacroiliac joint covered and the ischial spine more than 15 of acetabular bone
The curved surface that matches of surface, squared region 12；Have 3 roads on baffle plate 3 and rearwardly prolong from the root of baffle plate 3
The groove 6 stretched, can insert fixing screw fixed dam 3 through described groove 6, and having screw implantation site can
The advantage adjusted.
The using method of the associating steel plate in this example is as follows:
After 1 as it is shown in figure 5, fully expose the fracture site on acetabular bone in Shou Shu, for having answered
The fracture of acetabulum of position, is positioned over mainboard 1 and Anterior column plate 2 above arciform edge, and keeps baffle plate 3
Lower surface be affixed on squared region 12, then to sacroiliac joint direction promote associating steel plate, until pushing away motionless
Till；
2, after fixing associating steel plate, pilot sleeve 8 is coordinated to insert pulling force spiral shell through screwed hole to acetabular posterior column
Nail；
3, choose suitable front pillar fixing screw hole 5, insert fixing screw and fix front pillar；
4, select correct position to insert fixing screw in groove 6 and fix squared region bone piece.
In this research, man, female's experimental data there are differences, therefore be designed as man, two kinds of specifications of female；Due to people
Body pelvis has symmetrical left acetabular bone and right acetabular bone, post before and after acetabular bone the most of the present invention
Before and after associating steel plate obviously includes left acetabulum, post associating steel plate two before and after steel plate and right side acetabular bone combined by post
Kind, and the structure of the two mirror image each other.
Associating steel plate in this example can make according to the following steps:
A, the Three-dimension Reconstruction Model of acetabular bone is imported in three-dimensional drawing software, in the near arciform edge face of iliac fossa,
Several are uniformly picked up in the predetermined area of the upper surface of the squared region of acetabular bone and the arciform edge of acetabular bone
Point, then fits to a curved surface by the point picked up, then thickens, just obtain to be produced before and after
The mainboard of post associating steel plate and squared region baffle plate, the near arciform edge face extended along iliac fossa from mainboard runs to
The Anterior column plate of superior ramus of pubis；
B, drafting enter to follow closely the centrage of passage for simulating acetabular posterior column lag screw, and then swinging pattern is also
Adjust locus and the angle of described centrage respectively, make each centrage all in acetabular posterior column
Region, portion, and not passing in acetabular fossa, suitable after, mainboard is drawn with described centrage for axis
Screwed hole, moves towards to draw front pillar fixing screw hole along it on Anterior column plate, draws from baffle plate on baffle plate
Root extends to the groove of afterbody, now, i.e. completes the making of the virtual associating steel plate of post front and back；
C, collect 50 example normal pelvis Three-dimension Reconstruction Models, and through above-mentioned steps complete virtual before and after post connection
Close steel plate making after, measure, add up, analyze lag screw enter to follow closely angle, Anterior column plate trend with
And the data such as baffle shapes, draw the data being suitable for major part patient, before redesigning according to these data
Rear pillar associating steel plate, and form the new virtual associating steel plate of post front and back.
D, with post associating steel plate before and after virtual obtained by step c as workpiece, lathe produces, and steel plate is doctor
Make with rustless steel or titanium alloy.
Claims (4)
1. a post associating steel plate before and after modified model acetabular bone, this associating steel plate is by the mainboard being connected, front
Post steel plate and baffle plate are constituted, wherein,
At least have on described mainboard two for the screwed hole connecting pilot sleeve, described screwed hole from
Arrange along arciform edge near the near arciform edge face of iliac fossa, the axis of each screwed hole all through acetabular fossa with square
Sclerotin between district points to ischial tuberosity；The lower surface of described mainboard is the nearly bow with its iliac fossa covered
The curved surface matched near one section of bone surface of sacroiliac joint leading edge on shape edge face；
Described Anterior column plate is extended on pubis along the surface in the near arciform edge face of iliac fossa by the one of mainboard
Prop up, and lower surface is the curved surface matched with the near arciform edge face of its iliac fossa covered；Described front pillar
Some front pillar fixing screw holes along Anterior column plate arrangement are had on steel plate；
It is characterized in that,
Described baffle plate by the side of mainboard Yu Anterior column plate joint portion be bent downwardly and extend to ischial spine with
On squared region formed, and lower surface is the one section of arciform edge of genesis before sacroiliac joint covered with it
Surface and acetabular bone ischial spine more than the curved surface that matches of surface, squared region；Set on described baffle plate
There is the groove that at least twice self catcher buttress portion rearwardly extends.
Post associating steel plate before and after a kind of modified model acetabular bone the most according to claim 1, it is characterised in that
Described Anterior column plate deflects away between two front pillar fixing screw holes the most adjacent on the dual-side of baffle part to set
There is semicircular indentations.
Post associating steel plate, its feature before and after a kind of modified model acetabular bone the most according to claim 1 and 2
Being, described front pillar fixing screw hole is 3～8, a diameter of 3.5mm, and lines up one along arciform edge
Row.
Post associating steel plate, its feature before and after a kind of modified model acetabular bone the most according to claim 1 and 2
Being, described associating steel plate uses medical stainless steel or titanium alloy to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620218506.4U CN205548661U (en) | 2016-03-19 | 2016-03-19 | Steel sheet is united to post around improved generation acetabular bone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620218506.4U CN205548661U (en) | 2016-03-19 | 2016-03-19 | Steel sheet is united to post around improved generation acetabular bone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205548661U true CN205548661U (en) | 2016-09-07 |
Family
ID=56814377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620218506.4U Expired - Fee Related CN205548661U (en) | 2016-03-19 | 2016-03-19 | Steel sheet is united to post around improved generation acetabular bone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205548661U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109925042A (en) * | 2019-04-23 | 2019-06-25 | 平顶山市第一人民医院 | Combined type pelvis steel plate |
-
2016
- 2016-03-19 CN CN201620218506.4U patent/CN205548661U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109925042A (en) * | 2019-04-23 | 2019-06-25 | 平顶山市第一人民医院 | Combined type pelvis steel plate |
| CN109925042B (en) * | 2019-04-23 | 2024-03-26 | 平顶山市第一人民医院 | Combined pelvis steel plate |
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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: 20160907 Termination date: 20210319 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |