CN206198055U - DF and front and rear condyle measurement and positioning osteotomy device for knee replacements - Google Patents
DF and front and rear condyle measurement and positioning osteotomy device for knee replacements Download PDFInfo
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- CN206198055U CN206198055U CN201620884047.3U CN201620884047U CN206198055U CN 206198055 U CN206198055 U CN 206198055U CN 201620884047 U CN201620884047 U CN 201620884047U CN 206198055 U CN206198055 U CN 206198055U
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Abstract
The utility model discloses a kind of DF for knee replacements and front and rear condyle measurement and positioning osteotomy device, including Tibial osteotomy face guide plate, femoral-posterior condyles osteotomy guide plate, femur front ankle bone cutting guide plate, attachment screw and measurement probe, there is femoral-posterior condyles osteotomy guide plate draw-in groove on the guide plate of Tibial osteotomy face, be connected with femoral-posterior condyles osteotomy guide plate card article；There is measurement probe receptacle on femoral-posterior condyles osteotomy guide plate, be connected with measurement probe inserted link；There is femur front ankle bone cutting guide plate socket on femoral-posterior condyles osteotomy guide plate, be connected with femur front ankle bone cutting guide plate plate；Femoral-posterior condyles osteotomy guide plate connecting hole is connected with femur front ankle bone cutting guide plate plate connecting screw hole by attachment screw；Femoral-posterior condyles osteotomy guide plate is fixed nail femoral-posterior condyles osteotomy guide plate is fixed on femur by the fixed nail on femoral-posterior condyles osteotomy guide plate, surgical injury is substantially reduced using the utility model technology, femoral prosthesis accurate positioning, surgical procedure is simple, reduces surgery cost.
Description
Technical field
The utility model is a kind of operation technique assistive device, specifically a kind of femur for knee replacements
Distal end and front and rear condyle measurement and positioning osteotomy device, for DF marrow outside fix osteotomy in artificial knee joint Primary replacement art and
Condyle measurement, outward turning positioning osteotomy before and after femur.
Background technology
First, conventional art
（1）For the determination for stretching knee gap
The traditional DF osteotomy template used in total knee replacement is default by femur marrow in operation
Position determines the valgus angle of DF osteotomy surface, and follow-up operating procedure could be completed after carrying out correct osteotomy.
It is as follows to DF osteotomy major requirement in total knee replacement：First, when knee joint is stretched, stock
Bone osteotomy of distal face is parallel with shin bone epimere osteotomy surface and is turned up into fixed angle with femur axis（5°-7°）；2nd, DF
Osteotomy surface and the lower limb line of force into vertical relation.
Traditional operation apparatus needs row femoral bone cavitas medullaris to be inserted into locating rod just to can determine that DF osteotomy surface, but so
Operation wound can be increased, cause in operation and postoperative hemorrhage amount increase, increase fat embolism risk in art, or even jeopardize patient
Life, if patient femur has larger anterior arch radian, it is impossible to ensure that the line of force is vertical with DF osteotomy surface, exist inaccurate
Property, using shorter locating rod, then DF osteotomy surface valgus angle can be made untrue.If there are some factors in patient（For example：
Once row homonymy hip replacement femoral stem was more long or femur end deformity causes smoothly insert locating rod）Cause that length can not be used
Locating rod or can not using locating rod when, traditional operation will be unable to carry out.
（2）For the determination in gap of going down on one's knees
In total knee replacement, when femur side prosthesis size is measured and determines the femoral prosthesis outward turning number of degrees, pass
System instrument be with front or rear reference measure osteotomy device measure femoral prosthesis size and determine the femur side prosthesis outward turning number of degrees after, then
Use condyle osteotomy before and after four-in-one osteotomy template row DF.And the outward turning number of degrees of conventional tool only have 0 °, 3 °, 5 ° and
7 °, be the fixed number of degrees, it is impossible to be accurately changed to individual's number of degrees.
It is as follows to condyle osteotomy major requirement before and after DF in total knee replacement：First, go down on one's knees 90 ° when, it is desirable to
Institute is parallel with Tibial osteotomy face into face after postartis osteotomy, and it constitutes gap of going down on one's knees, and the gap that makes to go down on one's knees is equal to stretching knee gap；
2nd, at 90 ° of positions of knee sprung, femoral-posterior condyles osteotomy surface is parallel with shin bone epimere osteotomy surface and determines femoral prosthesis simultaneously
The outward turning number of degrees on DF cross section（3°）；3rd, at 90 ° of positions of knee sprung, femoral-posterior condyles osteotomy surface and shin bone
The line of force is into vertical relation.
Traditional operation apparatus needs to refer to femoral-posterior condyles line and just can determine that femoral-posterior condyles osteotomy surface, if patient femur's postartis
When there is developmental deformity, Cranial defect, it is impossible to ensure correct and postartis osteotomy surface and the Tibial osteotomy face of the DF outward turning number of degrees
Go down on one's knees 90 ° when it is parallel, there is inaccuracy, so as to cause the femoral prosthesis outward turning number of degrees excessive or small, cause femoral prosthesis to revolve
Turn to line mistake, patellar tract is bad, causes knee sprung unstable, influence patient's postoperative function and prosthese service life,
Increase operation and overhaul risk, decline operation satisfaction.
2nd, computer navigation
To break through the limitation of tradition TKA art formulas, computer aided orthopedics technology is arisen at the historic moment.It is medical image skill
The development of art, computer technology and space tracer technique and combination, be otherwise known as computer surgical navigational, there is accurate to performing the operation
Change, the advantage of standardization control.For navigation system, reduce the error of navigation system, improve the pass that prosthese installs accuracy
Key is preoperative registration, and this is the basis of different type area of computer aided artificial knee replacement surgery's system, is also operation
Committed step, it is positioned by body surface symbol or anatomic landmark, and individual patient Bones and joints information is carried out with computer system
The corresponding input of geometry and forming process.Therefore, navigation system is preoperative with that can there is certain error on time, and reason includes：
（1）Knee gap is stretched for determination
The determination at all navigation system hip joint centers relies on the motion of hip joint small range, the positioning of bone mark still with
By means of patient's naked eyes, feel and micro-judgment；The variation of bone mark has an impact to navigation results, and indicator is moved on bone mark
The dynamic accuracy that navigation can be influenceed to measure axis, navigation can improve prosthese contraposition, line accuracy, but navigation system are still used
Traditional operation identical anatomic landmark positions the lower limb line of force and prosthese rotation axis, so as to calibrate traditional osteotomy guide plate be cut
Bone, does not break away from traditional positioning reference and osteotomy apparatus yet, is based only on raising operation on the basis of checking and the wrong line of force of correction
Accuracy.In addition, high expense and technical requirements higher also limit navigation system wide popularization and application.Area of computer aided
The operation principle of navigation system is very similar with global positioning system.The positioning of lower limb mechanical axis is had been generally acknowledged that in femoral head
Point-blank, but there is very big difference in 3 points of the heart, knee joint center and ankle-joint, special for the selection of center position
Not for the determination at knee joint and ankle-joint center, await further research；The reference of these surgeries still suffers from very big dispute, and
Tradition and navigation are all by patient's naked eyes, feel and micro-judgment anatomic landmark, with very big subjectivity.Navigation system can
To improve the accuracy of total knee replacement, but as a kind of new technology, itself there is certain bias and inaccuracy, systematicness
Can there are many obstacles needs to overcome with security, and navigation system needs to be registered in art, extends operating time, increased
The risk fractured when infection and Using prosthesis.In addition, too high expense and complex technology requirement also limit its be widely popularized should
With.Therefore, no matter traditional or navigation system is without fundamentally solution lower limb biomethanics axis and prosthese rotation axis
Orientation problem, using traditional finger digital palpation for examination of trauma, bone mark is judged and recognized by personal experience and feel, depending on
Position osteotomy apparatus, does not break away from subjectivity.That is no matter tradition or navigation system, being inserted in accuracy in prosthese does not have
There is high cost in notable difference, navigation system, surgical procedure is complicated simultaneously, the problems such as increase infection risk.
（2）For determining gap of going down on one's knees
Navigation system by complete tracer install and anatomic points register after, condyle osteotomy before and after row femur.Navigation system is more
It is femur osteotomy rotational positioning reference line with external epicondyle of femur axis, front and back axis (whiteside lines) or posterior condyle axis.Cause
This, navigation system is preoperative with that can there is certain error on time, and reason includes：During navigation system DF rotational positioning, rely on
The positioning of DF bone mark, still by patient's naked eyes, feel and micro-judgment in operation；The variation of bone mark is right
Navigation results have an impact, and indicator movement on bone mark can influence the accuracy of navigation measurement axis, and navigation can be improved
Prosthese aligns, line accuracy, but navigation system is still used and position prosthese rotation axis with traditional operation identical anatomic landmark,
So as to the osteotomy guide plate for calibrating traditional carries out osteotomy, tradition positioning reference and osteotomy apparatus are not broken away from yet.Therefore, it is no matter traditional
Or navigation system does not solve fundamentally that bone mark is judged and recognized by patient's experience and feel, so as to position
Osteotomy apparatus, does not break away from subjectivity.Being inserted in prosthese does not have notable difference in accuracy, navigation system exists costly simultaneously
High, surgical procedure is complicated, the problems such as increase infection risk.
3rd, 3-D printing techniques
3-D printing techniques are gradually applied to field of orthopaedics in recent years, the perfect Preoperative Method of orthopaedics complicated operation, make
Operation is by becoming simple of complexity., by gathering the image datas such as preoperative CT, X line, by software processing, input is fast for it
Fast forming machine, is made the consistent model of entity sclerous tissues, contribute to it is preoperative it is accurate understand sclerous tissues trickle anatomical structure and
Lesion and the relation of surrounding structure, point out osteotomy line, positional information of bone piece movement etc., play a part of guided operation.Closing
In section surgery application, 3-D printing techniques can be patient " customized " individuation model because of it, make prosthese in joint replacement
The technical barriers such as the correction degree of selection, the accuracy of prosthese riding position and deformity of model are resolved.This causes to close
Section severe deformities, formulation simplification, the accuracy of the pre-operative surgical scheme of the patient of the serious contracture of soft tissue, so as to improve joint
The success rate of the complicated highly difficult operation of surgery, makes operation more accurate, safer.
But 3-D printings are still present using upper shortcoming at present.（1）Because this technology is not yet widely popularized, 3-D
The cost of use of printing is high, including 3-D printing devices are purchased, run, printed material and skilled addressee expense, mostly
Number patient can not undertake its expense.（2）3-D technologies are because of the individuation of printer model so that in printing portion requirement mould higher
During type, short time consumption is more long.（3）3-D printing techniques are still identified as the basis for making osteotomy guide plate using knee joint bone, this
In the presence of artificial subjectivity, the prosthese line of force and femoral prosthesis rotation are also resulted in knee replacements to the inaccurate of line.Always
It, 3-D printing techniques there is also to be inserted in prosthese with traditional operation does not have notable difference in accuracy, while there is Preoperative Method
Time is long, the problems such as high cost.
Summarize, knee gap, above-mentioned technology are stretched for determination（Conventional tool, computer navigation, 3D printing）There is operation
During need repeatedly plus cut the possibility of femur and shin bone.Because satisfied stretching knee gap to obtain, it is necessary to reach knee joint and stretch
When straight, corresponding spacer can be put between shin bone and femur and stretch knee gap to measure, it has been found that deposited during using conventional tool
In order that spacer can be put into stretches in knee gap, it has to repeat row DF and Tibial osteotomy, this increases operating time
Plus, cause a series of problems that postoperative infection risk increases and patient's anesthesia duration extends and brings.Wherein conventional tool is also needed
Positioning in row femur marrow, increases patient trauma, increases the possibility of the generations such as fat embolism, increases bleeding.
For gap is gone down on one's knees in determination, above technology have references to external epicondyle of femur axle when being positioned to femoral prosthesis outward turning
Line, front and back axis (whiteside lines) or posterior condyle axis.Summary is got up, at present in total knee replacement, by with
Lower four kinds of methods carry out femur side outward turning positioning, and have data to show that their the postoperative femoral prosthesis outward turning number of degrees are as follows respectively：
Lateral epicondyle axle positioning group：11 ° of 17 ° ~ outward turning of inward turning, postartis line group：13 ° ~ 14 °, Whitesides line groups：17 ° ~ 15 °, gap is put down
Weighing apparatus group：12 ° ~ 14 °, the incidence of 5 ° of femoral prosthesis number of rotation ＞ is as follows respectively：Lateral epicondyle axle positioning group：56% postartis line
Group：72%th, Whitesides lines group：60%th, gap balance group：20%.Also data shows, it is false that four kinds of technologies of the above occur femur
The probability of external 5 ° of ＞ of rotation is respectively：Lateral epicondyle axle positioning group：56%th, postartis line group：72%th, Whitesides lines group：60%th,
Gap balance group：20%.As can be seen that in four kinds of technologies, the accuracy highest of gap balance group.Lateral epicondyle axle, is touched in art with hand
External condyle most high spot in femur, determines femur outward turning, there are different observers and the bias of Different Results occurs.Postartis line group,
Postartis axle is the line of femoral-posterior condyles articular surface, and majority location of operation apparatuses are using it as reference at present.But knee joint varus
The Human Osteoarthritis postartis of deformity is often etched, and valgus deformity patient's ectocondyle then diminishes, and also has patient's postartis Cranial defect or soft
Cranial defect person, such as using postartis axle as reference axis, will cause femoral prosthesis to rotate malalignment.Whiteside lines, i.e. femur
Coaster minimum point and the axis at fossa intercondyloidea midpoint.Due on condyle axle equivalent to kneed pivot, Whiteside lines and condyle
Upper axle is vertical, can be marked after dislocation of the patella, easy compared with other axiss of reference mark, traumatic smaller, more reliable, it is adaptable to
Tradition and Minimally Invasive Surgery.But for condyle of femur depauperation and surgical technique patient, because condyle of femur profile changes,
Have impact on the reliability of the axis of reference.Flexing gap balancing technique is proposed by Insall etc., i.e., must stretched in TKA arts first
Straight position and flexing position reach balance (the equal tensity of inner side and outer side soft tissue structure), make it have normal kinematics with
Stability.After DF osteotomy first stretch position loosen anxiety ligament structure, until the knee joint line of force reach neutral position；So
Afterwards in 90 ° of flexing by tensioner or lamella separator insertion knee joint, leading proximal tibia osteotomy is retracted when using tensioner
During knee joint, femur preartis and postartis osteotomy are parallel to Tibial osteotomy face.It is considered that using gap balancing technique femoral prosthesis
Rotation can produce stability of preferably going down on one's knees, and improve postoperative knee joint function, reduce polyethylene prosthesis wear.
The utility model is, with equivalent osteotomy, parallel osteotomy, flexing gap balancing technique as principle, to complete shin bone standard
After osteotomy, DF osteotomy surface can be directly determined using the utility model when stretching knee joint, and can guarantee that the lower limb line of force,
DF osteotomy surface valgus angle can realize individuation, and do not repeat plus cut action, be cut with equivalent during flexing knee joint
Bone can complete femoral-posterior condyles osteotomy, and can ensure that the correct femoral prosthesis outward turning number of degrees and most suitable femoral prosthesis anteroposterior diameter
Size.
Gap balancing technique of going down on one's knees refers to that ligament patella of loosening maintains a tension state, is made between femur and shin bone
Gap it is rectangular.Its method is to give identical heavy burden in knee joint medial and lateral, and femoral-posterior condyles are cut off parallel to shin bone tangent plane.
After knee prosthesis osteotomy, kneed gap is to stretch gap when limbs are stretched, and gap when going down on one's knees is flexing gap, with two
Person is equal to be advisable.Due to the inside and outside condylar curvature of femur, to make two gaps equal, must be outward when carrying out condyle osteotomy before and after femur
Rotation osteotomy.Flexing gap balancing technique finds flexing compared with Patella tracking line, femoral-posterior condyles line, front and back axis technology
Stability when gap balancing technique is gone down on one's knees to knee joint is more preferable.
When artificial knee joint Primary replacement art is done, it is necessary to be surveyed to condyle before and after DF marrow outside fix osteotomy and femur
Amount, outward turning positioning osteotomy.Existed using conventional tool in surgical procedure and damage big, femoral prosthesis positioning is inaccurate, surgical procedure
Complexity, the problems such as surgery cost is high.
The content of the invention
The purpose of this utility model is that, for above-mentioned the deficiencies in the prior art, design one kind is put for knee joint
The DF and front and rear condyle measurement and positioning osteotomy device of art are changed, surgical injury, femoral prosthesis accurate positioning, surgical procedure is reduced
Simply, surgery cost is reduced.
The utility model is achieved like this, it is a kind of fixed for the DF of knee replacements and the measurement of front and rear condyle
Position osteotomy device, including Tibial osteotomy face guide plate, femoral-posterior condyles osteotomy guide plate, femur front ankle bone cutting guide plate, attachment screw, measurement
Probe, femoral-posterior condyles osteotomy guide plate fix nail and line of force bar, there is femoral-posterior condyles osteotomy guide plate draw-in groove on the guide plate of Tibial osteotomy face, with
Femoral-posterior condyles osteotomy guide plate card article connection on femoral-posterior condyles osteotomy guide plate；There is measurement probe to insert on femoral-posterior condyles osteotomy guide plate
Hole, is connected with the measurement probe inserted link on measurement probe；There is femur front ankle bone cutting guide plate socket on femoral-posterior condyles osteotomy guide plate, with
Femur front ankle bone cutting guide plate plate connection on femur front ankle bone cutting guide plate；Femoral-posterior condyles osteotomy guide plate has femoral-posterior condyles osteotomy to lead
Plate connecting hole, there is femur front ankle bone cutting guide plate plate connecting screw hole on femur front ankle bone cutting guide plate plate, femoral-posterior condyles osteotomy is led
Plate connecting hole is connected with femur front ankle bone cutting guide plate plate connecting screw hole by attachment screw；Femoral-posterior condyles osteotomy guide plate fixes nail
Femoral-posterior condyles osteotomy guide plate is fixed on femur by the fixed nail on femoral-posterior condyles osteotomy guide plate.
The utility model instrument is applied to total knee replacement, it is possible to achieve without opening femoral bone cavitas medullaris, reduces and damages
Injure bleeding, reach minimally invasive, reduce patient's pain, can directly determine to stretch knee gap equal with gap of going down on one's knees, stretch knee gap with
Go down on one's knees gap equivalent osteotomy, without multiple osteotomy, minimum osteotomy.Operating time shortens, and reduces repeated multiple times shin bone, femur and cuts
Bone, can determine that DF osteotomy surface individuation valgus angle, stretches knee gap and determines that this practicality is new with gap equivalent osteotomy of going down on one's knees
Type instrument can carry out minimum osteotomy to complete operation, select most suitable femoral prosthesis size, obtain good femoral prosthesis
Rotation position, makes the real individuation of number of rotation, does not depend on operating theater instruments unduly, reduces error, easy to operate.Break away from traditional skill
Art has to rely on femur anatomic landmark and could position, so as to avoid the error brought during identification femur anatomic landmark,
There are some factors in patient, for example：Once row homonymy hip replacement femoral stem was more long or femur end deformity can not smoothly insert fixed
Position bar, causes that locating rod long can not be used or can not lack using when positioning and in femoral-posterior condyles developmental deformity, postartis cartilage or bone
During damage, DF valgus angle positioning also more can be accurately carried out, it is ensured that the lower limb line of force, can ensure that femoral prosthesis rotation is right
Line, it is ensured that knee sprung stabilization, kneecap event trace is good, and postoperative patient knee joint function is good, increases prosthese and uses the longevity
Life.This tool operation is simple, shortens operating time, reduces operation opportunities for contamination, without increasing such as purchase navigation and 3D printing
The additional surgical expense of the disposable osteotomy guide plate of fabrication techniques, the utility model is simplified using instrument, and number of tools is few, relative to
Traditional operation instrument is more, reduces the expense such as sterilization and transport.
Brief description of the drawings
Fig. 1 is the connection diagram of Tibial osteotomy face guide plate and femoral-posterior condyles osteotomy guide plate.
Fig. 2 is the connection diagram of Tibial osteotomy face guide plate, femoral-posterior condyles osteotomy guide plate and measurement probe.
Fig. 3 is the connection diagram of Tibial osteotomy face guide plate, femoral-posterior condyles osteotomy guide plate and femur front ankle bone cutting guide plate.
Fig. 4 is Tibial osteotomy face guide plate structure schematic diagram.
Fig. 5 is femoral-posterior condyles osteotomy guide plate structure schematic diagram.
Fig. 6 is femur front ankle bone cutting guide plate structure schematic diagram.
Fig. 7 is that femoral-posterior condyles osteotomy guide plate fixes pin structure schematic diagram.
Fig. 8 is line of force bar.
A in figure is that Tibial osteotomy face guide plate, B are that femoral-posterior condyles osteotomy guide plate, C are femur front ankle bone cutting guide plates, and D is to survey
Amount probe, 1 is femoral-posterior condyles osteotomy guide plate draw-in groove, and 2 is femoral-posterior condyles osteotomy guide plate card article, and 3 is to fix nail, and 4 is that measurement is visited
Pin jack, 5 is measurement probe inserted link, and 6 is femur front ankle bone cutting guide plate socket, and 7 is femur front ankle bone cutting guide plate plate, and 8 is stock
Bone postartis osteotomy guide plate connecting hole, 9 is femur front ankle bone cutting guide plate plate connecting screw hole, and 10 is attachment screw.
Specific embodiment
Now with regard to accompanying drawing, the utility model is described in further detail, and as shown in figures 1-8, the utility model instrument is a kind of to be used for knee
The DF of joint replacement and front and rear condyle measurement and positioning osteotomy device, including tibial surface guide plate A, femoral-posterior condyles osteotomy guide plate
B, femur front ankle bone cutting guide plate C, measure probe D, and attachment screw 10 and guide plate fix nail, after having femur on Tibial osteotomy guide plate A
Condyle osteotomy guide plate draw-in groove 1, there is femoral-posterior condyles osteotomy guide plate card article 2 on femoral-posterior condyles osteotomy guide plate B, can snap in Tibial osteotomy and lead
Femoral-posterior condyles osteotomy guide plate draw-in groove 1 on plate；There is measurement probe receptacle 4 on femoral-posterior condyles osteotomy guide plate B, have survey on measurement probe
Amount probe inserted link 5, may be inserted into the measurement probe receptacle 4 on femoral-posterior condyles osteotomy guide plate B；Have on femoral-posterior condyles osteotomy guide plate B
Femur front ankle bone cutting guide plate socket 6, there is femur front ankle bone cutting guide plate plate 7 on femur front ankle bone cutting guide plate C, may be inserted into femur
Femur front ankle bone cutting guide plate socket 6 on postartis osteotomy guide plate B；Femoral-posterior condyles osteotomy guide plate B has femoral-posterior condyles osteotomy guide plate to connect
Hole 8 is connect, there is femur front ankle bone cutting guide plate plate to connect on the femur front ankle bone cutting guide plate plate 7 on femur front ankle bone cutting guide plate C
Screw 9, can insert the femur preartis on femoral-posterior condyles osteotomy guide plate with attachment screw 10 in femur front ankle bone cutting guide plate plate 7
Femoral-posterior condyles osteotomy guide plate B and femur front ankle bone cutting guide plate C are linked together during osteotomy guide plate socket 6, femoral-posterior condyles osteotomy
Guide plate is fixed nail femoral-posterior condyles osteotomy guide plate is fixed on femur by the fixed nail on femoral-posterior condyles osteotomy guide plate.Use
The utility model is completed inside and outside proximal tibia standard osteotomy and knee joint after soft tissue balance in total knee replacement,
For determine stretch knee gap when, using guide plate A in Tibial osteotomy face of the present utility model by femoral-posterior condyles osteotomy guide plate draw-in groove 1 with
Femoral-posterior condyles osteotomy guide plate B is connected, on the basis of Tibial osteotomy face, by the Tibial osteotomy face guide plate face as shown in Figure 1 of this instrument
Tibial osteotomy face is developed, traction shank makes lateral ligament equalization of strain in knee joint, while line of force bar alignment stock as shown in Figure 8
Bone center, knee joint center and ankle-joint center, nail is fixed by femoral-posterior condyles osteotomy guide plate B using guide plate as shown in Figure 7
DF front is fixed to, Tibial osteotomy face guide plate A is separated with femoral-posterior condyles osteotomy guide plate B, then can directly carry out stock
Bone distal cross section osteotomy.Can be directly realized by using the utility model and stretch knee gap equivalent osteotomy, in operation, gone down on one's knees 90 °, with
On the basis of Tibial osteotomy face, shank is drawn, when lateral ligament equalization of strain in knee joint is kept, by the Tibial osteotomy of this instrument
Tibial osteotomy face is developed in face guide plate A faces, and femoral-posterior condyles osteotomy guide plate B develops DF osteotomy surface in face, is surveyed using measurement probe D
Go out condyle size before and after femur, determine most suitable prosthese size, reuse the connection femur front ankle bone cutting guide plate C of attachment screw 10, make
Nail is fixed with guide plate the forward and backward condyle osteotomy guide plate of femur is fixed on femur, select suitable osteotomy groove to carry out femur preartis and cut
Bone, and then DF and front and rear condyle osteotomy can be completed.
Claims (1)
1. a kind of DF and front and rear condyle measurement and positioning osteotomy device for knee replacements, including Tibial osteotomy face is led
Plate（A）, femoral-posterior condyles osteotomy guide plate（B）, femur front ankle bone cutting guide plate（C）, attachment screw（10）With measurement probe, its feature exists
In there is femoral-posterior condyles osteotomy guide plate draw-in groove on the guide plate of Tibial osteotomy face（1）, cut with the femoral-posterior condyles on femoral-posterior condyles osteotomy guide plate
Bone conduction board bar（2）Connection；There is measurement probe receptacle on femoral-posterior condyles osteotomy guide plate（4）, with the measurement probe on measurement probe
Inserted link（5）Connection；There is femur front ankle bone cutting guide plate socket on femoral-posterior condyles osteotomy guide plate（6）, on femur front ankle bone cutting guide plate
Femur front ankle bone cutting guide plate plate（7）Connection；Femoral-posterior condyles osteotomy guide plate has femoral-posterior condyles osteotomy guide plate connecting hole（8）, stock
Bone front ankle bone cutting guide plate plate（7）On have femur front ankle bone cutting guide plate plate connecting screw hole（9）, the connection of femoral-posterior condyles osteotomy guide plate
Hole（8）With femur front ankle bone cutting guide plate plate connecting screw hole（9）Connected by attachment screw；Femoral-posterior condyles osteotomy guide plate fixes nail
By the fixed nail on femoral-posterior condyles osteotomy guide plate（3）Femoral-posterior condyles osteotomy guide plate is fixed on femur.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620884047.3U CN206198055U (en) | 2016-08-16 | 2016-08-16 | DF and front and rear condyle measurement and positioning osteotomy device for knee replacements |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620884047.3U CN206198055U (en) | 2016-08-16 | 2016-08-16 | DF and front and rear condyle measurement and positioning osteotomy device for knee replacements |
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| CN206198055U true CN206198055U (en) | 2017-05-31 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106264752A (en) * | 2016-08-16 | 2017-01-04 | 孙朝军 | Distal femur and front and back condyle measurement and positioning osteotomy device for knee replacements |
| CN113425368A (en) * | 2021-06-24 | 2021-09-24 | 北京市春立正达医疗器械股份有限公司 | Individualized adjustable bone conduction board that cuts |
| CN116035783A (en) * | 2023-03-30 | 2023-05-02 | 北京壹点灵动科技有限公司 | Method and device for determining knee joint prosthesis, storage medium and electronic equipment |
-
2016
- 2016-08-16 CN CN201620884047.3U patent/CN206198055U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106264752A (en) * | 2016-08-16 | 2017-01-04 | 孙朝军 | Distal femur and front and back condyle measurement and positioning osteotomy device for knee replacements |
| CN113425368A (en) * | 2021-06-24 | 2021-09-24 | 北京市春立正达医疗器械股份有限公司 | Individualized adjustable bone conduction board that cuts |
| CN113425368B (en) * | 2021-06-24 | 2023-02-17 | 北京市春立正达医疗器械股份有限公司 | Individualized adjustable bone conduction board that cuts |
| CN116035783A (en) * | 2023-03-30 | 2023-05-02 | 北京壹点灵动科技有限公司 | Method and device for determining knee joint prosthesis, storage medium and electronic equipment |
| CN116035783B (en) * | 2023-03-30 | 2023-07-28 | 北京壹点灵动科技有限公司 | Method and device for determining knee joint prosthesis, storage medium and electronic equipment |
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