CN203619664U - Calcaneus sustentaculum tali screw guider - Google Patents
Calcaneus sustentaculum tali screw guider Download PDFInfo
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- CN203619664U CN203619664U CN201320794100.7U CN201320794100U CN203619664U CN 203619664 U CN203619664 U CN 203619664U CN 201320794100 U CN201320794100 U CN 201320794100U CN 203619664 U CN203619664 U CN 203619664U
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- calcaneus
- sustentaculum
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Abstract
The utility model discloses a calcaneus sustentaculum tali screw guider, which is characterized by comprising a positioning plate, wherein the positioning plate is more than or equal to 7 millimeters in thickness; an included angle of 120-140 degrees is formed between the adjacent first side edge and second side edge of the positioning plate; the positioning plate is provided with a through guide hole; the guide hole is 15-25 millimeters from the second side edge; the axis of the guide hole inclines by 23-27 degrees upwards relative to a horizontal plane, and then inclines forwards by 28-32 degrees relative to a vertical surface. By adopting the calcaneus sustentaculum tali screw guider, the problems that screws need to be positioned by means of multiple X-ray fluoroscopy data as well as the experience and technologies of surgeons and the like in the prior art are solved. The guider is set accurately according to dissection data such as the outer side wall projection of sustentaculum tali, so that the harms of intraoperative fluoroscopy to human bodies are reduced, and man-made iatrogenic complications due to position deviations of sustentaculum tali screws are reduced. The guider is convenient to use, and is suitable to be widely applied to hospitals of various levels.
Description
Technical field
This utility model relates to medical apparatus and instruments, specifically refers to a kind of sustentaculum of talus screw guides.
Background technology
Fracture of calcaneus is a kind of common sufficient fracture of tarsus, and its incidence rate accounts for whole body fracture 2%, accounts for 60%～65% of whole fracture of tarsus.Fracture of calcaneus is dealt with improperly and can be caused foot pain and deformity, has a strong impact on limb function.Because the cortical bone of calcaneus is compared with thin and spongy bone is relatively many, so the pressure at right angle of astragalus often causes subside compression, particularly posterior articular facet of calcaneus to be often comminuted fracture while there is fracture.In fracture of calcaneus, the main factor of the impact sufficient prognosis of trouble is posterior articular facet integrated degree and displacement situation.Therefore, the reset of facies articularis calcanea posterior sclerite and stable fixing most important, be all to have firmly screw gripping point at the inside and outside sidewall of calcaneus and make the effective fixing prerequisite of posterior articular facet sclerite, make screw play one " pillar " effect to posterior joint facial bone piece.The stability of the clinical middle calcaneus medial wall sclerite that utilizes sustentaculum tali and be attached thereto in fracture of calcaneus can effectively solve calcaneus medial wall screw gripping point.Meanwhile, easily pulverize in fracture calcaneus lateral wall, is difficult to for screw provides stable support point, but can solves this difficult problem by the screw hole of outside steel plate.Therefore, accurately fixingly in sustentaculum tali screw can provide strong gripping point, make fracture of calcaneus recover good, can avoid again the generation of artificial Iatrogenic Complications.
In routine operation, the location of sustentaculum tali screw is only determined with operative doctor experience, so just inevitably can produce the error of anthropic factor, causes sustentaculum tali screw location dissatisfied, thereby affects surgical effect, operative failure when serious.Improvement calcaneus outside " L " type otch is the main flow of current fracture of calcaneus operative approach, this approach can be posterior articular facet reduction sufficient exposure is provided, but be still difficult to appear sustentaculum tali through this approach, still need to rely on doctor's experience and technology from steel plate screw hole, calcaneus lateral wall during to sustentaculum tali drivescrew.
Application publication number is that the Chinese invention patent application of CN103169536A discloses a kind of " sustentaculum of talus screw guides ".It comprises support arm and inner support, described support arm is hinged and is connected with one end of inner support, the hinged place of described support arm and inner support is provided with securing member, the corresponding hinged place of described support arm is provided with the first adjusting keeper, the described support arm other end is provided with the second adjusting keeper, described first regulates keeper and second to regulate is provided with the spacing that confession human body ankle passes between keeper and both are on same straight line, the corresponding hinged place of described inner support is provided with the first pedicle screw guide pipe, the described inner support other end is provided with the second pedicle screw guide pipe, between described the first pedicle screw guide pipe and the second pedicle screw guide pipe, be provided with the spacing of passing for human body ankle and both are on same straight line.
Use this guider can improve to a certain extent the positioning precision of sustentaculum tali screw, still, its complex structure, regulates loaded down with trivial detailsly, need to provide location reference point by a large amount of fluoroscopy during operation the data obtaineds, and operation is wasted time and energy; The anglec of rotation of its inner side sustentaculum tali screw anchor point and screw guide pipe is still the same with prior art, need to rely on the experience of operative doctor.
Summary of the invention
Thereby technical problem to be solved in the utility model is to provide a kind of sustentaculum of talus screw guides that can avoid anthropic factor impact accurately to locate sustentaculum tali screw point for the present situation of prior art, thereby guarantee the success of operation, avoid the generation of artificial Iatrogenic Complications.
This utility model solves the problems of the technologies described above adopted technical scheme: this sustentaculum of talus screw guides, it is characterized in that comprising location-plate, thickness >=7 millimeter of described location-plate, on described location-plate, there is first side and the second side corresponding with the both sides at calcaneus Gissane angle, angle between described first side and second side is 120-140 °, described location-plate is provided with the pilot hole of perforation, distance between described pilot hole and described second side is 15-25 millimeter, corresponding to calcaneus neutral position state, the axis in described centre pilot hole is with respect to the horizontal plane inclined upwardly after 23-27 ° with respect to the vertical guide 28-32 ° of angle that turn forward again.
Preferably, described pilot hole has five, wherein has the central point of four pilot holes to connect successively rear formation rectangle, and, the central point line sustentaculum tali mid point of these four pilot holes is formed to rectangular pyramid structure; The central point of a remaining pilot hole is positioned at the position of this rectangle diagonal intersection point.This structure is adaptive different patients' skeletal structure better; Meanwhile, this structure also can be good at steel plate positions different in adaptive art, and the design of multiple pilot holes must make position, steel plate screw hole in the inner.
In such scheme, the aperture of each described pilot hole is 2.5-3.0 millimeter.
As improvement, can also on the first surface of calcaneus, be provided with the groove suitable with calcaneus at described location-plate, while being beneficial to perform the operation, location-plate coordinates with the docile of calcaneus, and this groove runs through described first surface, and described pilot hole is positioned at described groove.
Preferably, the angle between described first side and second side is 130 °, and under neutral position state, centre pilot axially bored line with respect to the horizontal plane upwards becomes forward 30 ° with respect to coronalplane after 25 ° again.
Can also on described location-plate, be provided with four for squeezing into the fixing hole of Kirschner wire location in submarginal position.Like this, in art, can first carry out after posterior articular facet reset, guider is put in and is applicable to position and squeezes into Kirschner wire, fixed guider and calcaneus in four fixing holes, make calcaneus and localizer fixing safe, avoid in operation process the location-plate pilot hole guiding causing that misplace to be offset.
Preferably, the aperture of described fixing hole is 1.0mm.
In order to facilitate the use of this guider, can on described location-plate, be provided with the handle that evagination grips in location-plate, while facilitating doctor to perform the operation.
When fixing in fracture of calcaneus, it is one of comparatively serious complication of calcaneus operation that the screw that the screw of fixation steel plate is especially fixed sustentaculum tali is strayed into subtalar joint.In prior art, main experience and the technology that relies on the image of radioscopy gained and coordinate operative doctor, determines the screw position on sustentaculum tali.This utility model has been avoided in prior art the necessary repeatedly radioscopy data of foundation of screw location institute and the problem such as experience and technology of operative doctor, this guider is set according to anatomical datas such as the lateral wall projections of sustentaculum tali, accurate, reduce fluoroscopy during operation to human injury, the generation of the artificial Iatrogenic Complications that minimizing sustentaculum tali screw position deviation causes, easy to use, be applicable to Ge Ceng hospital and be widely used popularization.
Accompanying drawing explanation
Fig. 1 to Fig. 3 is the perspective view of this utility model embodiment.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail this utility model.
Calcaneus is the shank of foot maximum, and the geometric shape that it is complicated and internal structure make it to bear complicated stress in the live and work of every day.Reset after fracture of calcaneus and fixed effect affect the operative effect of fracture of calcaneus.The ideal of fracture of calcaneus resets to require to reach and recovers the normal length of calcaneus, width and height, recovers the normal relation of talocalcaneal joint face, calcaneocuboid joint face.The function of suffering limb will be had a strong impact on if fracture of calcaneus can not get desirable reset, and complication can be followed.
In typical Calcaneus compression fracture, posterior articular facet is subject to the backward lower displacement of shearing force, and below spongy bone is subsided.And the anatomical structure of sustentaculum tali is special, when fracture, be difficult to the feature of displacement, be used as the gripping point of calcaneus reset screw.
According to dissecting statistics, the bone statistical result of different human body sustentaculum tali is as shown in table 1.
Table 1
| Project | X±s(min-max) |
| Sustentaculum tali long (mm) | 23.4±3.0(12.0～34.0) |
| Sustentaculum tali wide (mm) | 15.3±2.3（13.0～18） |
| Sustentaculum tali high (mm) | 9.6±1.2(8.0～13.0) |
| On turn over angle (°) | 25.7±6.4(15.0～40.0) |
| Top rake (°) | 30.1±5.7(20.0～40.0) |
In table 1, X represents assembly average, the minimum and maximum value of the Different Individual that the s value representation actual count in bracket arrives.
According to sustentaculum tali anatomical data, the medial surface of sustentaculum tali is similar to rectangle.According to the direction of turning over angle and top rake on sustentaculum tali and limiting, by each end points of sustentaculum tali medial surface along its axis reverse extending to the lateral wall of calcaneus, on calcaneus lateral wall, form approximate rectangular projection area.Diagonal is done in four of sustentaculum tali lateral surface summits, and two cornerwise intersection points are the central point of sustentaculum tali lateral surface, take sustentaculum tali central point as summit, connect sustentaculum tali and form quadrangular structure in four summits of projection on calcaneus lateral wall.
This utility model people by sustentaculum tali the projection area on calcaneus lateral wall transfer on location-plate.Simultaneously according in clinical use, veins of tarsal sinus place is difficult to the feature of displacement fracture, take the dissection statistical data at calcaneus Gissane angle as reference, the first side of this location-plate and second side are designed to the inclination suitable with the Gissane angle of calcaneus crossing, in the present embodiment, be set as 130 °, be that angle between first side 11 and the second side 12 that location-plate is adjacent is 130 °, make the Gissane angle resetting after fracture of calcaneus a little more than normal value, avoid postoperative calcaneus to continue to be subject to the loss of calcaneus Gissane angle due to shearing force.
Introduce in detail the structure of this guider below.
As shown in Figure 1 to Figure 3, this utility model is according to the anatomical features of sustentaculum tali: under neutral position state, by sustentaculum tali lateral surface each point with respect to sagittal plane downward 25 ° again with respect to coronalplane backward the reverse extending of 30 ° project on the first surface 16 of location-plate, four summits of sustentaculum tali corresponding subpoint on location-plate is H, I, J, K, and these 4 for being positioned at peripheral four pilot hole H, I, the central point of J, K on location-plate; These central points are connected to rear formation rectangle HIJK successively.By the center point P of H, I, J, K line sustentaculum tali, form rectangular pyramid.Second surface 17 by four rib reverse extendings of rectangular pyramid to location-plate, forms rectangle H ' I ' J ' K '.By the mid point P of mid point O ' the line sustentaculum tali of rectangle H ' I ' J ' K ', the mid point O of rectangle HIJK is positioned on O ' P line.The length of line segment OP is 50mm, and the length of this length and dog screw is suitable.
In the present embodiment, the thickness of location-plate is 10 millimeters, and this thickness volume in accurately leading is light and handy, and handled easily, also saves material.The thickness of location-plate conventionally >=7mm, the minimum thickness that limits location-plate is the accuracy leading when holing and to place screw.The length of line segment OP need to specifically be determined according to the thickness of dog screw and location-plate.
Take H ' P, I ' P, J ' P, K ' P and O ' P as axis, on location-plate, punch respectively, obtain the pilot hole 13 of five perforations, in the present embodiment, the aperture of each pilot hole is 2.5mm, for the diameter of adaptive drill bit.
And each pilot hole tilts to second side 12.
On the first surface of calcaneus, be provided with the groove suitable with calcaneus 14 at location-plate, this groove 14 runs through first surface, and four subpoint H, I, J, K are positioned on the bottom surface of groove 14.Arranging of groove is mainly in order to make the laminating between location-plate and calcaneus lateral surface more docile.
That is to say, the distance between each pilot hole 13 and second side is 15-25 millimeter, and above-mentioned five pilot holes are positioned at the projection area of sustentaculum tali at calcaneus lateral surface.
In order time to facilitate doctor to use this localizer in operation, on location-plate, be also provided with evagination facilitate doctor to perform the operation time the handle 2 that grips.
On location-plate, submarginal four vertex positions are also respectively equipped with four fixing holes 15 that aperture is 1.0mm, these fixing holes are used for squeezing into Kirschner wire positioning guide, make guider and calcaneus firmly fixing, thereby guiding is accurately, avoid in operating process guider move due to guider move and cause error.
The using method of this guider is described below:
After exposing in art, first carry out calcaneus reset: the recovery of posterior articular facet height is carried out at the Gissane angle becoming with second side according to the first side of this guider, then to squeezing into Kirschner wire in four fixing holes, locating guider and calcaneus are firmly fixed.
According to steel plate fixed position difference, choose a pilot hole coinciding with steel plate screw hole, to hole to sustentaculum tali by this pilot hole, bit diameter is 2.5mm.After punching, leave and take drill bit, will be applicable to steel plate screw hole and be inserted in steel plate is put in to calcaneus outside along drill bit, take out drill bit, after measurement length, by this hole, screw is screwed on sustentaculum tali.In the present embodiment, sustentaculum tali screw is selected 3.5mm os integumentale screw, and sustentaculum tali screw length is 50.16mm.So far sustentaculum tali screw positioning instant has been accused.
At present, substantially be all to carry out touch system according to radioscopy result in art for location sustentaculum tali screw, affected by C type arm perspective in art, or patient is to posterior articular facet reset degree difference, often sustentaculum tali screw fixed position is not satisfied, causes screw to depart from sustentaculum tali, if sustentaculum tali screw is too high, cause that subtalar joint destroys, cause iatrogenic arthritic complication to occur.If sustentaculum tali screw is too low, can Dao Zhi Hallux Flexor hallucis longus tendon and posterior tibial muscle tendon wear and rupture.
And the design of this guider is dissected statistical data as foundation take calcaneus, sustentaculum tali is carried out to projection, perspective plane is positioned on the medial surface (being groove surface) of location-plate, sustentaculum tali forms rectangle HIJK projection on the medial surface of location-plate, the central point O point of rectangle is the projection of sustentaculum tali central point, O point to the length setting of sustentaculum tali center point P is that 50mm is sustentaculum tali screw meansigma methods, and concrete length need to be accurate according to measuring institute in art.Because each locating hole is all centers of subtend sustentaculum tali, therefore, even in operation process slightly deviation of the location of guider, but under the guide effect of this guider, dog screw still can accurately be squeezed in sustentaculum tali.
In clinical, the collapsed and comminuted of facies articularis calcanea posterior, be difficult to find out the reference point of a projected area, this utility model is difficult to the feature of displacement according to calcaneus Gissane angular vertex place, take calcaneus Gissane angular vertex as reference position, the guide structure of the Projection Design in conjunction with sustentaculum tali on calcaneus lateral wall, makes all can be driven into reliably sustentaculum tali center by the screw of arbitrary locating hole, fixedly provides medial wall gripping point for dog screw.Meanwhile, this utility model can also guarantee to be positioned at after dog screw is squeezed into the below of facies articularis calcanea posterior, also provides good support to the reset at facies articularis calcanea posterior and Gissane angle, and these to be prior aries cannot accomplish.
Claims (7)
1. a sustentaculum of talus screw guides, it is characterized in that comprising location-plate, thickness >=7 millimeter of described location-plate, on described location-plate, there is first side and the second side corresponding with the both sides at calcaneus Gissane angle, angle between described first side and second side is 120-140 °, described location-plate is provided with the pilot hole of perforation, distance between described pilot hole and described second side is 15-25 millimeter, corresponding to calcaneus neutral position state, the axis of described pilot hole is with respect to the horizontal plane inclined upwardly after 23-27 ° with respect to the vertical guide 28-32 ° of angle that turn forward again.
2. sustentaculum of talus screw guides according to claim 1, it is characterized in that described pilot hole has five, wherein there are four pilot holes to connect successively rear formation rectangle, and, the central point line sustentaculum tali mid point of these four pilot holes is formed to rectangular pyramid structure; A remaining pilot hole is positioned at the point midway of this rectangle.
3. sustentaculum of talus screw guides according to claim 2, is characterized in that described location-plate is provided with the groove suitable with calcaneus towards the first surface of calcaneus, and this groove runs through described first surface, and described pilot hole is positioned at described groove.
4. sustentaculum of talus screw guides according to claim 3, is characterized in that the angle between described first side and second side is 130 °, and the axis of the pilot hole of center becomes 30 ° of angles with the vertical line of described location-plate thickness direction.
5. sustentaculum of talus screw guides according to claim 4, is characterized in that on described location-plate, submarginal position is provided with four fixing holes of locating described location-plate for squeezing into Kirschner wire.
6. sustentaculum of talus screw guides according to claim 5, the aperture that it is characterized in that described fixing hole is 1.0mm.
7. sustentaculum of talus screw guides according to claim 5, is characterized in that described location-plate is provided with the handle that evagination grips in the time that location-plate facilitates doctor to perform the operation.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320794100.7U CN203619664U (en) | 2013-12-04 | 2013-12-04 | Calcaneus sustentaculum tali screw guider |
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| CN201320794100.7U CN203619664U (en) | 2013-12-04 | 2013-12-04 | Calcaneus sustentaculum tali screw guider |
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| CN203619664U true CN203619664U (en) | 2014-06-04 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103622744A (en) * | 2013-12-04 | 2014-03-12 | 庞清江 | Calcaneus sustentaculum tali screw guider |
| CN107072677A (en) * | 2014-09-29 | 2017-08-18 | 拜欧米特制造有限责任公司 | Adjustable glenoid cavity pin inserts guiding piece |
| RU2676665C2 (en) * | 2017-02-20 | 2019-01-09 | Федеральное государственное бюджетное учреждение "Научно-исследовательский детский ортопедический институт имени Г.И. Турнера" Министерства здравоохранения | Method of determining the level of osteotomy of the healing bone during evans |
| RU2735214C1 (en) * | 2019-11-18 | 2020-10-28 | Общество с ограниченной ответственностью "ТИОС" | Method for performing calcaneal osteotomy and h-shaped reconstructive plate used for implementation of said method |
| RU2816788C1 (en) * | 2023-05-26 | 2024-04-05 | Федеральное государственное бюджетное учреждение "Национальный медицинский исследовательский центр травматологии и ортопедии имени Н.Н. Приорова" Министерства здравоохранения Российской Федерации (ФГБУ "НМИЦ ТО им. Н.Н. Приорова" Минздрава России) | Method for surgical treatment of planovalgus foot deformity in older children using osteotomy of calcaneal bone based on preoperative computer simulation |
-
2013
- 2013-12-04 CN CN201320794100.7U patent/CN203619664U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103622744A (en) * | 2013-12-04 | 2014-03-12 | 庞清江 | Calcaneus sustentaculum tali screw guider |
| CN107072677A (en) * | 2014-09-29 | 2017-08-18 | 拜欧米特制造有限责任公司 | Adjustable glenoid cavity pin inserts guiding piece |
| RU2676665C2 (en) * | 2017-02-20 | 2019-01-09 | Федеральное государственное бюджетное учреждение "Научно-исследовательский детский ортопедический институт имени Г.И. Турнера" Министерства здравоохранения | Method of determining the level of osteotomy of the healing bone during evans |
| RU2735214C1 (en) * | 2019-11-18 | 2020-10-28 | Общество с ограниченной ответственностью "ТИОС" | Method for performing calcaneal osteotomy and h-shaped reconstructive plate used for implementation of said method |
| RU2816788C1 (en) * | 2023-05-26 | 2024-04-05 | Федеральное государственное бюджетное учреждение "Национальный медицинский исследовательский центр травматологии и ортопедии имени Н.Н. Приорова" Министерства здравоохранения Российской Федерации (ФГБУ "НМИЦ ТО им. Н.Н. Приорова" Минздрава России) | Method for surgical treatment of planovalgus foot deformity in older children using osteotomy of calcaneal bone based on preoperative computer simulation |
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