CN208851616U - A kind of bone fixation plate fractured for treating femoral lateral condyle - Google Patents
A kind of bone fixation plate fractured for treating femoral lateral condyle Download PDFInfo
- Publication number
- CN208851616U CN208851616U CN201721157824.5U CN201721157824U CN208851616U CN 208851616 U CN208851616 U CN 208851616U CN 201721157824 U CN201721157824 U CN 201721157824U CN 208851616 U CN208851616 U CN 208851616U
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- China
- Prior art keywords
- bone fixation
- fixation plate
- head
- lateral condyle
- femoral lateral
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Abstract
The utility model relates to a kind of for treating the bone fixation plate of femoral lateral condyle fracture, the bone fixation plate includes the tail portion for being fixedly connected with shaft of femur, the head for fixing with femoral lateral condyle and the interconnecting piece for connecting head and tail portion, the main view shape of the tail portion and the shape of shaft of femur match, the shape on head and the shape of femoral lateral condyle match, and the bone fixation plate is equipped with screw hole.Compared with prior art, the bone fixation steel plate of the utility model more adapts to the anatomical form shape of femoral lateral condyle side, and sticking nature is good, and fixed operation is convenient；And the side view of this bone fixation plate, the shape of distal part of femur can be effectively adapted to, protects collateral ligaments not receive compressing, abrasion, reduces the pain of patient.
Description
Technical field
The utility model relates to medical device appliances technical fields, and in particular to a kind of for treating femoral lateral condyle fracture
Bone fixation plate.
Background technique
Femoral-posterior condyles fracture is also called HOFFA fracture, was put forward for the first time and was named in 1904 by Albert Hoffa.
Hoffa fracture belongs to intra-articular fracture, is the Coronal fracture at distal part of femur list condyle or double condyle rears, including femoral lateral condyle fracture
With condylar fracture in femur, accumulative femoral-posterior condyles fracture (i.e. HOFFA fracture) accounts for about 2%.Type fracture is more common in traffic accident, height
Sky falls contour Energy Damage, and fracture end is unstable in the vertical and horizontal direction, seriously affects knee joint weight bearing and walking
Function, treatment are not good at, then disability rate is high.In addition to fissure fracture, internal fixation operation of cutting and resetting treatment is required, due to
HOFFA fracture lacks dedicated dissection locking steel plate, fixes frequently with the steel plate or hollow nail at other positions.
As Chinese patent CN103083072 discloses a kind of screw fractured applied to femoral-posterior condyles, including component A and group
Part B, component A are non-hollow structure, are made of screw thread 1, screw thread 2, and component B is inner hollow, and the front end component B is provided with screw thread 5,
Screw thread 5 and screw thread 2 are coaxial threaded, and the screw thread 2 of screw thread 5 and component A matches, and the tail portion of screw thread 2 is triangular prism, described group
The length of part B is the 1/2 to 1/4 of component A.But since the screw fixed bit is few, position is mismatched, and often results in fixed failure,
Sclerite displacement, leads to operative failure.In addition, as used existing locking steel plate, since steel plate edge is without pre-bending angle, for
The friction stimulation of lateral collateral ligament starting point is big, and easily generation lateral collateral ligament is because of Damage and Fracture caused by fixed friction.The above
The effect of HOFFA fracture fixation in factors influence, there are the complication such as anatomical shape mismatch, insufficient rigidity, ligament injury
The disadvantages of more.
Utility model content
The purpose of this utility model be exactly in order to overcome the problems of the above-mentioned prior art and provide it is a kind of safely and effectively,
The easy to operate bone fixation plate fractured for treating femoral lateral condyle.
The purpose of this utility model can be achieved through the following technical solutions: a kind of for treating femoral lateral condyle fracture
Bone fixation plate, the bone fixation plate include tail portion for being fixedly connected with shaft of femur, for the head fixed with femoral lateral condyle with
And the interconnecting piece on connection head and tail portion, the main view shape of the tail portion and the shape of shaft of femur match, the shape on head with
The shape of femoral lateral condyle matches, and the bone fixation plate is equipped with screw hole.
The circular screwhole that diameter is 4.5mm is set in the tail portion and interconnecting piece, and the tail portion and interconnecting piece pass through screw
It is fixedly connected with the lower end of shaft of femur.
The large-diameter circular screw hole that diameter is 4.5mm and the small diameter circular spiral shell that diameter is 3mm are set in the head
Hole, the part that shaft of femur extension is located in the head are equipped with the large-diameter circular screw hole that diameter is 4.5mm, its remaining part of head
It is arranged with the small diameter circular screw hole that diameter is 3mm, and the small diameter circular screw hole and bone fixation plate thickness direction that diameter is 3mm
In 15 °~45 °.In the circular screwhole of head setting minor diameter, and small diameter circular screw hole favours the thickness side of bone fixation plate
To, so that be fixed conveniently, it is convenient, reliable especially for the HOFFA fracture fixation by proximal edge.
The length on the head is 35~50mm, and the width on head is 35~50mm, and the length of interconnecting piece is 20~35mm,
The length of tail portion is 10~55mm, width 15mm, and it is different with the length of tail portion to migrate portion according to head length, width, connection
Be made into large, medium and small sequence and tail length variation can cut it is practical.
The side-glance shape of the bone fixation plate includes sequentially connected straight flange, curved surface side and bevel edge, and the straight flange corresponds to head
It is located at the part of shaft of femur extension in portion, the curved surface side is S-type, and the straight flange and curved surface side and femoral lateral condyle surface
Collateral ligaments fitting, the bevel edge tilts outward and do not contact with collateral ligaments, and the corresponding width of the bevel edge is 10mm.Make straight
While and when curved surface be close to collateral ligaments, increase the contact area of bone fixation plate and shaft of femur, so that fixation is more stable, and make tiltedly
It is stuck up outside side, is because femoral lateral condyle is in human knee position, ligament frequent activity separates bevel edge with collateral ligaments, will not
Ligament is caused to oppress, reduces tough belt wear, reduces patient's pain.
The straight flange and bevel edge are in 5 °.
The bone fixation plate with a thickness of 2mm.
The material of the bone fixation plate is titanium alloy, and using the titanium alloy of 2mm, intensity, histocompatbility are reliable, Ke Yiren
Meaning shearing, bending moulding according to the figure of sufferer and can be damaged the position length and position suitable according to actual needs shearing
It sets, the prefabricated arc of fixed plate can be good at adapting to the form of distal femur external condyle, can effectively maintain the bone of condyle of femur
Folding resets, while side lateral collateral ligament being protected not suffer oppression, stimulate, wear.
Compared with prior art, the beneficial effects of the utility model are embodied in following several respects:
1. the fixation steel plate more adapts to the anatomical form shape of femoral lateral condyle side, sticking nature is good, and fixed operation is convenient；
2. the head lower part design aperture and inclined hole of fixed plate, convenient especially for the HOFFA fracture fixation by proximal edge,
Reliably；
3. side view can effectively adapt to the shape of distal part of femur, protects collateral ligaments not receive compressing, abrasion, reduce
The pain of patient；
4. interconnecting piece is in abnormal shape, to adapt to condylus medialis femoris to the profile variation of femur cadre, tail end length can basis
Fracture fixation needs to cut length；
5. fixed plate is bent thickness 2mm titanium alloy sheet, it is easy to pre-bending, to adapt to femur condyle anatomical variation.
Detailed description of the invention
Fig. 1 is the schematic view of the front view of the utility model；
Fig. 2 is the structural schematic diagram in the direction A-A in Fig. 1；
Fig. 3 is the sectional perspective schematic diagram of the utility model.
Wherein, 1 is head, and 2 be interconnecting piece, and 3 be tail portion, and 4 be screw hole.
Specific embodiment
It elaborates below to the embodiments of the present invention, the present embodiment before being with technical solutions of the utility model
It puts and is implemented, the detailed implementation method and specific operation process are given, but the protection scope of the utility model is unlimited
In following embodiments.
Embodiment 1
As shown in Figure 1-3, a kind of fixed dedicated locking steel plate of distal femur entocondyle, the fixed plate are in " bean sprouts " moulding,
Match with distal femur external condyle side dissection shape.Including head 1, interconnecting piece 2 and tail portion 3, it is equipped with screw hole 4.Tail portion 3
Length it is different according to the model of steel plate and length is different, length 55mm.Head 1 have 4.5mm large-diameter circular screw hole,
The small diameter circular screw hole of 3mm, wherein 3.0mm small-diameter screw-hole and bone fixation plate thickness direction are in 45 °, as shown in Figure 1.It uses
When, bone fixation plate is integrally inclined outwardly 10 °, and the S-shaped curve in the middle part on head, head has 10mm to tilt C=15 ° of edge below,
It can according to need bending adjustment and adapt to condyle of femur edge contour, avoid the stimulation and abrasion to medial collateral ligament.
The bone fixation plate is bent thickness 2mm titanium alloy sheet, and intensity, histocompatbility are reliable, can arbitrarily shear,
Bending moulding according to the figure of sufferer and can be damaged the position length and position suitable according to actual needs shearing, fixed
The prefabricated arc of plate can be good at adapting to the form of distal femur external condyle, can effectively maintain the reduction of the fracture of condyle of femur,
It protects lateral collateral ligament not suffer oppression simultaneously, stimulate, wearing.
Fixation steel plate on the outside of above-mentioned dedicated distal femur can be used for treating condylus lateralis femoris rear portion fracture (HOFFA fracture)
It is fixed.
Claims (5)
1. a kind of for treating the bone fixation plate of femoral lateral condyle fracture, which is characterized in that the bone fixation plate includes being used for and femur
Tail portion, the head for being fixed with femoral lateral condyle and the interconnecting piece for connecting head and tail portion that body is fixedly connected, the tail portion
Main view shape and the shape of shaft of femur match, the shape on head and the shape of femoral lateral condyle match, the bone fixation plate
It is equipped with screw hole；
The length on the head is 35~50mm, and the width on head is 35~50mm, and the length of interconnecting piece is 20~35mm, tail portion
Length be 10~55mm, width 15mm；
The side-glance shape of the bone fixation plate includes sequentially connected straight flange, curved surface side and bevel edge, and the straight flange corresponds in head
Positioned at the part of shaft of femur extension, the curved surface side is S-type, and the side pair of the straight flange and curved surface side and femoral lateral condyle surface
Ligament fitting, the bevel edge tilts outward and do not contact with collateral ligaments, and the corresponding width of the bevel edge is 10mm；
The straight flange and bevel edge are in 5 °.
2. according to claim 1 a kind of for treating the bone fixation plate of femoral lateral condyle fracture, which is characterized in that the tail
The circular screwhole that diameter is 4.5mm is set in portion and interconnecting piece, and the tail portion and interconnecting piece pass through the lower end of screw and shaft of femur
It is fixedly connected.
3. according to claim 1 a kind of for treating the bone fixation plate of femoral lateral condyle fracture, which is characterized in that the head
The large-diameter circular screw hole that diameter is 4.5mm and the small diameter circular screw hole that diameter is 3mm, position in the head are set in portion
It is equipped with the large-diameter circular screw hole that diameter is 4.5mm in the part of shaft of femur extension, it is 3mm that head rest part, which is equipped with diameter,
Small diameter circular screw hole, and diameter be 3mm small diameter circular screw hole and bone fixation plate thickness direction be in 15 °~45 °.
4. according to claim 1 a kind of for treating the bone fixation plate of femoral lateral condyle fracture, which is characterized in that the bone
Fixed plate with a thickness of 2mm.
5. according to claim 1 a kind of for treating the bone fixation plate of femoral lateral condyle fracture, which is characterized in that the bone
The material of fixed plate is titanium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721157824.5U CN208851616U (en) | 2017-09-11 | 2017-09-11 | A kind of bone fixation plate fractured for treating femoral lateral condyle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721157824.5U CN208851616U (en) | 2017-09-11 | 2017-09-11 | A kind of bone fixation plate fractured for treating femoral lateral condyle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208851616U true CN208851616U (en) | 2019-05-14 |
Family
ID=66409580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721157824.5U Expired - Fee Related CN208851616U (en) | 2017-09-11 | 2017-09-11 | A kind of bone fixation plate fractured for treating femoral lateral condyle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208851616U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111358545A (en) * | 2020-03-23 | 2020-07-03 | 上海市第四人民医院 | Femur external condyle type II HOFFA fracture fixing plate |
-
2017
- 2017-09-11 CN CN201721157824.5U patent/CN208851616U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111358545A (en) * | 2020-03-23 | 2020-07-03 | 上海市第四人民医院 | Femur external condyle type II HOFFA fracture fixing plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190514 Termination date: 20190911 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |