CN205697978U - A kind of Posterior fixation steel plate of spinous process of the seventh cervical vertebra folding before and after acetabular bone - Google Patents
A kind of Posterior fixation steel plate of spinous process of the seventh cervical vertebra folding before and after acetabular bone Download PDFInfo
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- CN205697978U CN205697978U CN201620218473.3U CN201620218473U CN205697978U CN 205697978 U CN205697978 U CN 205697978U CN 201620218473 U CN201620218473 U CN 201620218473U CN 205697978 U CN205697978 U CN 205697978U
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- screwed hole
- acetabular
- steel plate
- plate body
- posterior
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Abstract
This utility model relates to a kind of Posterior fixation steel plate of spinous process of the seventh cervical vertebra folding before and after acetabular bone, and this Posterior fixation steel plate has a plate body being covered on acetabular posterior column rear wall；Described plate body from the top close to greater sciatic notch summit downwards near and after acetabular posterior column medial border extends to ischial spine root, then bending extends to the bottom on ischial tuberosity top；The front pillar screwed hole being provided with for connecting pilot sleeve on greater sciatic notch top it is positioned at described plate, the axis of this front pillar screwed hole sclerotin between acetabular fossa and squared region points to acetabular anterior column, the other end being positioned at ischial tuberosity is provided with the rear pillar screwed hole for connecting pilot sleeve, and the axis of this rear pillar screwed hole sclerotin in ischial tuberosity points to the tail end of ischial tuberosity；Some fixing screw holes along the arrangement of plate body it are provided with between described front pillar screwed hole and rear pillar screwed hole；The side of the one nearly greater sciatic notch of head rest of described plate body correspondence front pillar screwed hole is provided with and hooks in the positive stop hook of greater sciatic notch top.
Description
Technical field
This utility model relates to a kind of surgical instruments, is specifically related to the fixation steel plate of acetabular bone and peripheral structure, should
Fixation steel plate is be applicable to the fracture fixing acetabular anterior column and rear pillar posterior approach.
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, through shame
Bone props up and terminates in pubic symphysis, is made up of part ilium and pubis；Wherein, rear pillar by greater sciatic notch through acetabular bone
Center 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, and every big class is divided into again 5 subclass, this 10
Planting in classification of fracture, partial fracture is (as transverse fracture, intercondylar fracture, front add later half transverse fracture, twin columns
Fracture) need front and back's post to be carried out replacement and fixation simultaneously.
Operative treatment is considered as the first-selected therapeutic scheme of the fracture of acetabulum of displacement, operative treatment of acetabular fractures
Principle is the good recovery by the anatomical reduction in weight-bearing joints face realizes function of joint, the accuracy of reset
Decide the effect of operative treatment.The application for a patent for invention of Publication No. CN104188716A discloses one
Post associating steel plate before and after acetabular bone, this associating steel plate is made up of the mainboard being connected, Anterior column plate and baffle plate,
At least have two screwed holes connecting rear pillar lock screw sleeve on wherein said mainboard, coordinate external leading
Rear pillar lag screw can be inserted in this two screwed hole to sleeve, be used for fixing rear pillar fracture；Described front pillar
Steel plate is extended to superior ramus of pubis by mainboard surface along the near arciform edge face of iliac fossa；Described front pillar steel
Have some front pillar fixing screw holes along the arrangement of Anterior column plate length direction on plate, coordinate fixing screw to use
Fracture in fixing front pillar.
Although above-mentioned associating steel plate can be simultaneously fixing to staying through row before and after acetabular bone, but also have the drawback that by
In this associating Interal fixation in the near arciform edge face of iliac fossa, and lag screw and fixing screw are both needed to before iliac fossa
Side is inserted, so this associating steel plate can only be inserted through front operative approach.And the anatomical position residing for acetabular bone is relatively
Deeply, adjoining anatomy relationship complicated, anterior approach passage needed pelvic cavity, due to the stop of pelvic organs, led
Cause operating difficulty is big, long incision, exposes wide, and amount of bleeding is many, easily injures Intrapelvic internal organs in art, postoperative
Complication is more, e.g., and the problem such as iatrogenic injury of sciatic nerve, ectopic ossification, femur head necrosis.
Summary of the invention
It is solid that technical problem to be solved in the utility model is to provide a kind of way of escape that the spinous process of the seventh cervical vertebra is rolled over before and after acetabular bone
Determining steel plate, this Posterior fixation steel plate coordinates lag screw can fold into by the spinous process of the seventh cervical vertebra before and after rear operative approach is to acetabular bone
Row is fixed simultaneously, has operating time short, and otch is little, and amount of bleeding is few, the advantage that post-operative complication is few.
This utility model solves the technical scheme of above-mentioned technical problem:
A kind of Posterior fixation steel plate of spinous process of the seventh cervical vertebra folding before and after acetabular bone, it is characterised in that；
Described Posterior fixation steel plate has a plate body being covered on acetabular posterior column rear wall, and this plate body is from close to sitting
The top on bone big incisura summit downwards near and after acetabular posterior column medial border extends to ischial spine root, then
Bending extends to the bottom on ischial tuberosity top；After the lower surface of described plate body is the acetabular posterior column covered with it
The curved surface that the surface of wall matches；
The front male screw being provided with for connecting pilot sleeve on greater sciatic notch top it is positioned at described plate
Hole, the other end being positioned at ischial tuberosity is provided with the rear pillar screwed hole for connecting pilot sleeve；Wherein, described
Front pillar screwed hole be positioned at greater sciatic notch top, its axis sclerotin between acetabular fossa and squared region points to
Acetabular anterior column；Described rear pillar screwed hole is positioned at ischial tuberosity top, and the bone that its axis is in ischial tuberosity
Matter points to the tail end of ischial tuberosity；
Some fixing screw holes along the arrangement of plate body it are provided with between described front pillar screwed hole and rear pillar screwed hole；
The side of the one nearly greater sciatic notch of head rest of described plate body correspondence front pillar screwed hole be provided with hook in ischium big
The positive stop hook of incisura top, the inner surface of this positive stop hook matches with the bone surface of greater sciatic notch.
A kind of Posterior fixation steel plate of spinous process of the seventh cervical vertebra folding before and after acetabular bone described in the utility model, wherein, described
On the dual-side of plate body between the most adjacent two fixing screw holes and rear pillar screwed hole and adjacent fixing screw hole it
Between be provided with semicircular indentations.
A kind of Posterior fixation steel plate of spinous process of the seventh cervical vertebra folding before and after acetabular bone described in the utility model, wherein, described
Fixing screw hole is 4, a diameter of 3.5mm.
A kind of Posterior fixation steel plate of spinous process of the seventh cervical vertebra folding before and after acetabular bone described in the utility model, wherein, described
Posterior fixation steel plate uses medical stainless steel or titanium alloy to make, and plate body thickness is 3mm.
Posterior fixation steel plate using method described in the utility model is as follows:
1, use rear operative approach, fully expose the fracture site at acetabular bone rear.For having answered good position
Fracture of acetabulum, Posterior fixation steel plate is positioned over acetabular posterior column rear wall, and makes positive stop hook catch on ischium to cut greatly
Mark；To greater sciatic notch top promote plate body until push away motionless till；
2, pilot sleeve is installed respectively on front pillar screwed hole and rear pillar screwed hole, inserts guide pin through pilot sleeve,
See that guide pin can be pulled out after good in guide pin position through perspective, be placed into lag screw；
3, fixing screw is inserted through fixing screw hole.
This utility model has the following technical effect that
1, can be inserted by rear operative approach due to described Posterior fixation steel plate, and the anatomy relationship at acetabular bone rear
The simplest relative to front, do not have too much human internal organ and blood vessel to stop, operating difficulty substantially reduces,
And it is little to have operative incision, amount of bleeding is few, the advantage that post-operative complication is few.
2, utilize being mutually matched of positive stop hook and greater sciatic notch top radian, can quickly find plate in operation accurately
The placement location of body, the advantage with location simple and fast, further shorten operating time, reduce and receive
Operating difficulty.
3, front pillar screwed hole and rear pillar screwed hole are respectively provided with fixing and enter to follow closely angle accurately, coordinate pilot sleeve
Can quickly and accurately insert lag screw and fix the fracture site of before and after's post.
Accompanying drawing explanation
Fig. 1～4 is the structural representation of a specific embodiment of Posterior fixation steel plate described in the utility model
Figure, wherein, Fig. 1 is front view, and Fig. 2 is top view, and Fig. 3 is upward view, and Fig. 4 is left view.
Fig. 5 is Fig. 1～the perspective view of 4 illustrated embodiments.
Fig. 6 is the use state diagram of Fig. 1～4 illustrated embodiments.
Detailed description of the invention
Seeing Fig. 1～5, the Posterior fixation steel plate in this example is by plate body 1, the front male screw that is located on plate body 1
Hole 2, rear pillar screwed hole 3, fixing screw hole 4 and positive stop hook 5 form.Steel plate is made up of titanium alloy, plate body
1 thickness is 3mm.
Seeing Fig. 6, and combine Fig. 1～5, during use, described plate body 1 is covered in acetabular posterior column rear wall 8, on it
Terminate the top on the summit of nearly greater sciatic notch 7, and be close to downwards acetabular posterior column rear wall 8 near and along
Acetabular posterior column medial border extends to the root of ischial spine 10, then bends and extend to sit along lesser sciatic notch 11
The lower section on bone tuberosity 12 top.The acetabular posterior column that the curved surface that the lower surface of described plate body 1 is formed covers with it
The surface of rear wall 8 matches.
Seeing Fig. 6, and combine Fig. 2 and 5, described front pillar screwed hole 2 is located at plate body 1 and is positioned at ischium and cuts greatly
One of mark 7 top, its position is in the top of greater sciatic notch 7.The axis of described front pillar screwed hole 2
Point to acetabular anterior column via the sclerotin between acetabular fossa 9 and squared region, and this axis is upwardly deviated from acetabular fossa 9
Center.The effect of described front pillar screwed hole 2 is to coordinate pilot sleeve 13 to insert front pillar lag screw, hands
In art, plate body 1 position is directed to sleeve 13 after finding accurately and links together with front pillar screwed hole 2, through pilot sleeve
13 insert guide pin 14, see that guide pin 14 can be pulled out after good in guide pin 14 position through perspective, are placed into front pillar and draw
Power screw.Under the front pillar screwed hole 2 guiding with pilot sleeve 13, lag screw can easily and accurately be put
Enter to acetabular anterior column, and lag screw can be prevented effectively from pass to articular cavity from acetabular fossa 9.
Seeing Fig. 6, and combine Fig. 2 and 5, described rear pillar screwed hole 3 is located at plate body 1 and is positioned at ischial tuberosity 12
Other end, its position be less than ischial spine 10, be in the top of ischial tuberosity 12；Described rear pillar screwed hole 3
Axis via in ischial tuberosity 12 sclerotin point to ischial tuberosity 11 tail end.Described rear pillar screwed hole 3
Effect be to coordinate pilot sleeve 13 to insert rear pillar lag screw in order to fixing acetabular posterior column, it is in operation
Operational approach identical with front pillar screwed hole.
See Fig. 2,3 and 5, with the plate between described front pillar screwed hole 2 and rear pillar screwed hole 3, be provided with 4
The individual fixing screw hole 4 moving towards arrangement along plate body 1, this fixing screw hole is that the light of countersunk head is empty, a diameter of
3.5mm.On plate body 1 dual-side between the most adjacent two fixing screw holes 4 and rear pillar screwed hole 3 is solid with adjacent
Determine to be provided with between screw hole 4 semicircular indentations 6, in order to carry out the most moulding to described posterior column steel plate.
Seeing Fig. 1～5, and combine Fig. 6, described plate body 1 is corresponding on a side of greater sciatic notch 7
The position of front pillar screwed hole 2 is provided with positive stop hook 5, and this positive stop hook 5 extends to the big incisura of bone 7 from plate body 1 side
And hook in the bone table of greater sciatic notch 7 top, the curved surface that its inner surface is formed and greater sciatic notch 7 top
Face matches.
In this research, man, female's experimental data there are differences, therefore be designed as man, two kinds of specifications of female；Due to human body
Pelvis has symmetrical left acetabular bone and right acetabular bone, the most described in the utility model before acetabular bone
The Posterior fixation steel plate of rear pillar fracture fixation obviously includes left side Posterior fixation steel plate and right side Posterior fixation steel plate
Two kinds, and the structure of the two mirror image each other.
Hereinafter announce a kind of manufacture method of Posterior fixation steel plate in this example:
A, the Three-dimension Reconstruction Model of acetabular bone is imported in three-dimensional drawing software, make sure to keep in mind greatly at ischium, after acetabular bone
The surface of post rear wall is uniformly picked up in predetermined area several points, then the point picked up is fitted to one
Curved surface, then thicken, just obtains plate body and the positive stop hook of Posterior fixation steel plate to be produced, positive stop hook from
Plate body side extends and walks around greater sciatic notch top and hooks forward greater sciatic notch top；
B, draw for simulating acetabular anterior column and rear pillar lag screw enters to follow closely the centrage of passage, then rotate figure
Shape also adjusts locus and the angle of described centrage respectively, and wherein front pillar lag screw enters to follow closely in passage
Heart line sclerotin between acetabular fossa and squared region points to acetabular anterior column；Two position of center line and angle adjustment are closed
After Shi, with plate, draw screwed hole with this two centrage for axis, be front pillar screwed hole and rear male screw
Hole；Draw fixing screw hole afterwards with plate between front pillar screwed hole and rear pillar screwed hole, i.e. complete void
Intend the making of Posterior fixation steel plate；
C, collect 50 example normal pelvis Three-dimension Reconstruction Models, and complete virtual Posterior fixation steel through above-mentioned steps
After the making of plate, measure, add up, analysis plates body and positive stop hook shape, size, lag screw enter to follow closely angle
The data such as degree, draw the data being suitable for major part patient, redesign virtual Posterior fixation according to these data
Steel plate.
D, with the virtual Posterior fixation steel plate obtained by step c as workpiece, lathe produce, steel plate by medical not
Rust steel or titanium alloy are made.
Claims (4)
1. the Posterior fixation steel plate of spinous process of the seventh cervical vertebra folding before and after acetabular bone, it is characterised in that；
Described Posterior fixation steel plate has a plate body being covered on acetabular posterior column rear wall, this plate body from the top close to greater sciatic notch summit downwards near and after acetabular posterior column medial border extends to ischial spine root, then bending extends to the bottom on ischial tuberosity top；The lower surface of described plate body is the curved surface that the surface of the acetabular posterior column rear wall covered with it matches；
Being positioned at the front pillar screwed hole being provided with for connecting pilot sleeve on greater sciatic notch top with described plate, the other end being positioned at ischial tuberosity is provided with the rear pillar screwed hole for connecting pilot sleeve；Wherein, described front pillar screwed hole is positioned at greater sciatic notch top, and its axis sclerotin between acetabular fossa and squared region points to acetabular anterior column；Described rear pillar screwed hole is positioned at ischial tuberosity top, and the sclerotin that its axis is in ischial tuberosity points to the tail end of ischial tuberosity；
Some fixing screw holes along the arrangement of plate body it are provided with between described front pillar screwed hole and rear pillar screwed hole；
The side of the one nearly greater sciatic notch of head rest of described plate body correspondence front pillar screwed hole is provided with and hooks in the positive stop hook of greater sciatic notch top, and the inner surface of this positive stop hook matches with the bone surface of greater sciatic notch.
A kind of Posterior fixation steel plate of spinous process of the seventh cervical vertebra folding before and after acetabular bone the most according to claim 1, it is characterised in that be provided with semicircular indentations between the most adjacent two fixing screw holes and between rear pillar screwed hole with adjacent fixing screw hole on the dual-side of described plate body.
A kind of Posterior fixation steel plate of spinous process of the seventh cervical vertebra folding before and after acetabular bone the most according to claim 1 and 2, it is characterised in that described fixing screw hole is 4, a diameter of 3.5mm.
A kind of Posterior fixation steel plate of spinous process of the seventh cervical vertebra folding before and after acetabular bone the most according to claim 1 and 2, it is characterised in that described Posterior fixation steel plate uses medical stainless steel or titanium alloy to make, and plate body thickness is 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620218473.3U CN205697978U (en) | 2016-03-19 | 2016-03-19 | A kind of Posterior fixation steel plate of spinous process of the seventh cervical vertebra folding before and after acetabular bone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620218473.3U CN205697978U (en) | 2016-03-19 | 2016-03-19 | A kind of Posterior fixation steel plate of spinous process of the seventh cervical vertebra folding before and after acetabular bone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205697978U true CN205697978U (en) | 2016-11-23 |
Family
ID=57313661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620218473.3U Withdrawn - After Issue CN205697978U (en) | 2016-03-19 | 2016-03-19 | A kind of Posterior fixation steel plate of spinous process of the seventh cervical vertebra folding before and after acetabular bone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205697978U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105769319A (en) * | 2016-03-19 | 2016-07-20 | 王钢 | Posterior fixing steel plate for fracture of acetabular anterior and posterior columns |
-
2016
- 2016-03-19 CN CN201620218473.3U patent/CN205697978U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105769319A (en) * | 2016-03-19 | 2016-07-20 | 王钢 | Posterior fixing steel plate for fracture of acetabular anterior and posterior columns |
| CN105769319B (en) * | 2016-03-19 | 2018-01-12 | 王钢 | A kind of Posterior fixation steel plate rolled over for the spinous process of the seventh cervical vertebra before and after acetabular bone |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161123 Effective date of abandoning: 20180112 |
|
| AV01 | Patent right actively abandoned |