CN103202725A - Tibia-astragalus-calcaneus joint fusion outer side dissection locking steel plate - Google Patents
Tibia-astragalus-calcaneus joint fusion outer side dissection locking steel plate Download PDFInfo
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- CN103202725A CN103202725A CN2012100071065A CN201210007106A CN103202725A CN 103202725 A CN103202725 A CN 103202725A CN 2012100071065 A CN2012100071065 A CN 2012100071065A CN 201210007106 A CN201210007106 A CN 201210007106A CN 103202725 A CN103202725 A CN 103202725A
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- fixed part
- calcaneus
- astragalus
- tibia
- steel plate
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 43
- 239000010959 steel Substances 0.000 title claims abstract description 43
- 230000004927 fusion Effects 0.000 title claims abstract description 22
- 238000002224 dissection Methods 0.000 title abstract description 5
- 210000000459 calcaneus Anatomy 0.000 claims abstract description 65
- 210000004233 talus Anatomy 0.000 claims abstract description 56
- 241001061264 Astragalus Species 0.000 claims abstract description 54
- 235000006533 astragalus Nutrition 0.000 claims abstract description 54
- 210000002303 tibia Anatomy 0.000 claims abstract description 52
- 238000005452 bending Methods 0.000 claims description 5
- 210000004872 soft tissue Anatomy 0.000 abstract description 3
- 210000000988 bone and bone Anatomy 0.000 description 10
- 210000000549 articulatio subtalaris Anatomy 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 208000037873 arthrodesis Diseases 0.000 description 4
- 210000003423 ankle Anatomy 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 210000000544 articulatio talocruralis Anatomy 0.000 description 2
- 230000037182 bone density Effects 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 231100000915 pathological change Toxicity 0.000 description 2
- 230000036285 pathological change Effects 0.000 description 2
- 206010058314 Dysplasia Diseases 0.000 description 1
- 208000035126 Facies Diseases 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 238000002591 computed tomography Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000004064 dysfunction Effects 0.000 description 1
- 210000002683 foot Anatomy 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
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Abstract
The invention provides a tibia-astragalus-calcaneus joint fusion outer side dissection locking steel plate, which comprises a plate-shaped tibia fixing part, an astragalus fixing part and a calcaneus fixing part, wherein the tibia fixing part, the astragalus fixing part and the calcaneus fixing part are fixedly connected in sequence; the astragalus fixing part and the calcaneus fixing part are bent into arc forms along the width direction of the tibia fixing part; an angle of 125-135 degrees is formed between the calcaneus fixing part and the tibia fixing part; the length of the astragalus fixing part is 2.5-3 centimeters; the length of the calcaneus fixing part is 4-5 centimeters; and the tibia fixing part, the astragalus fixing part and the calcaneus fixing part are provided with at least one steel nail fixing hole. The tibia-astragalus-calcaneus joint fusion outer side dissection locking steel plate provided by the invention is more consistent with the outer side dissection state of a tibia-astragalus-calcaneus joint, and is jointed with the distal end of the tibia as well as the surfaces of outer side skeletons of the astragalus and calcaneus; moreover, the space arrangement of screw holes is more reasonable, the steel plate is easier and more convenient to use, and the fixing strength is higher; and the steel plate has the advantages of convenience in surgical operation, reliable fixing strength, reduction in local soft tissue tension and the like.
Description
Technical field
The present invention relates to a kind of dissection locking steel plate, relate in particular to a kind of pollex and dissect locking steel plate with the joint fusion outside.
Background technology
Tibial astragaloid joint and subtalar joint are born the function of keeping loading by lower limbs, walking and keeping normal ankle and foot mobility as the important composition structure of ankle-metapedes complex.Diseases such as the wound of ankle joint or metapedes, dysplasia and chronic tendon dysfunction all may cause Secondary cases tibial astragaloid joint and subtalar joint pathological changes, cause serious pain, deformity and walking function obstacle, can't obtain the patient of satisfactory effect for expectant treatment, operative treatment is alleviating pain preferably, restore funcitons.Although also there is the scholar to propose to adopt tibial astragaloid joint displacement and this disease of subtalar joint fusion combined treatment, but its operation technique complexity, late result is imprecise, and adopt pollex with the arthrodesis determined curative effect, can recover patient's daily life function, be still the goldstandard that whole tibial astragaloid joint merging in latter stage subtalar joint pathological changes corrective surgery mode is treated at present, this art is gone through full-fledged over nearly 100 years, various apparatuses such as screw, exterior fixation bracket, gussets etc. all are used as setting tool and use, but itself or the loaded down with trivial details difficulty of operation technique maybe can't provide enough stability, use and be restricted gradually, internal fixation device commonly used at present comprises drive in the wrong direction interlocking intramedullary nail and locking steel plate etc., especially locking steel plate can provide best constant intensity, and operation technique is also comparatively simple and direct, is subjected to clinicist's favor.
Adopt outside approach to it is advantageous that with respect to other modus operandis with arthrodesis through external malleolus osteotomy row pollex: 1, ankle joint outside approach does not have important neurovascular structure, and tibial astragaloid joint and the good exposure of subtalar joint can be provided; 2, can be used as the bone grafting source in conjunction with distal fibular osteotomy distal fibular spongy bone, reduced the necessity of getting autologous bone transplanting; 3, can obviously simplify surgical operation step in conjunction with steel plate is fixing, shorten operating time.
But some traditional steel plates are not designed with arthrodesis for pollex specially, therefore do not meet the anatomic form in tibia-astragalus-calcaneus outside, occupy bigger space, need to give pre-bending in the middle of the operation, fixing simultaneously screw hole design can not meet clinical needs fully.
Along with the development of Spiral CT scan and three-dimensional reconstruction image and corresponding radiographic measurement software engineering, distal tibial and astragalus and the calcaneus outside the bone surface form can access clearly and shown.
Therefore, those skilled in the art is devoted to develop a kind of pollex that meets more with the locking steel plate that is applicable to fusion of the outside, joint form.
Summary of the invention
In view of above-mentioned the problems of the prior art, technical problem to be solved by this invention is to lack in the existing technology to be suitable for pollex with the locking steel plate of arthrodesis.
A kind of pollex provided by the invention is dissected locking steel plate with the joint fusion outside, comprise tabular tibia fixed part, astragalus fixed part and calcaneus fixed part, described tibia fixed part, the astragalus fixed part is connected successively with the calcaneus fixed part, described astragalus fixed part and calcaneus fixed part are crooked curved successively along the width of tibia fixed part, the angle that is 125 ~ 135 degree between described calcaneus fixed part and the tibia fixed part, the length of described astragalus fixed part is 2.5 ~ 3cm, the length of described calcaneus fixed part is 4 ~ 5cm, described tibia fixed part, at least be provided with a steel nail fixing hole on astragalus fixed part and the calcaneus fixed part.
In a preferred embodiments of the present invention, described tibia fixed part, astragalus fixed part and calcaneus fixed part are structure as a whole.
In another preferred embodiments of the present invention, be the angle of 22.5 ~ 27.5 degree between described tibia fixed part, astragalus fixed part, the calcaneus fixed part successively.
In another preferred embodiments of the present invention, the length of described tibia fixed part is 8 ~ 10cm.
In another preferred embodiments of the present invention, described tibia fixed part be shaped as straight plate shape.
In another preferred embodiments of the present invention, be the angle of 4 ~ 5 degree between described calcaneus fixed part and the plane, described tibia fixed part place.
In another preferred embodiments of the present invention, described calcaneus fixed part be shaped as straight plate shape, described astragalus fixed part bending is the angles of 4 ~ 5 degree.
In another preferred embodiments of the present invention, the length of described calcaneus fixed part is 2.5 ~ 3:2 ~ 2.5 with the ratio of width.
In another preferred embodiments of the present invention, the width of described tibia fixed part is 2 ~ 2.5:3 ~ 3.5 with the ratio of length.
In another preferred embodiments of the present invention, the hole axle of at least one described fixing hole not with the normal parallel on described tibia fixed part, astragalus fixed part or plane, calcaneus fixed part place.
Pollex of the present invention is dissected locking steel plate with the joint fusion outside and is met pollex more with the outside, joint anatomic form, the applying distal tibial, astragalus and calcaneus outside bone surface, and the spatial arrangement of screw hole is more reasonable, use more easyly, constant intensity is also more firm, and it is convenient to have an operation technique, constant intensity is reliable, reduces advantages such as local soft tissue tension force.
Description of drawings
Fig. 1 is the structural representation of embodiments of the invention;
Fig. 2 is the structural representation of the each several part angle of embodiments of the invention;
Fig. 3 is the user mode sketch map of embodiments of the invention;
Fig. 4 is the user mode sketch maps of embodiments of the invention when people's ankle fixed-site.
The specific embodiment
Below with reference to accompanying drawing the present invention is done concrete explaination.
Take the photograph sheet and the distal tibial-astragalus of the CT-measurement result of calcaneus outside anatomic form and the related data of external other scholar's research by the X line, can draw:
1, distal tibial is relative with the astragalus lateral surface smooth-going.Astragalus lateral surface and external malleolus associated section below are outstanding laterally.Calcaneus axis and pollex axis have certain angle of bend in crown position;
2, the bone trabecular growth of calcaneus has three groups: the oblique traveling to the back lower place from the subtalar joint rear portion, distribute along calcaneus below and forwards stretch from the tuber calcanei place.The loose zone of a bone density is arranged between three groups of bone trabecula, be positioned at the central authorities of calcaneus front portion, some patient even form the calcaneus hole at this.The calcaneus lateral surface is anterior because the existence of peroneal trochlea forms protuberance;
3, the astragalus joint is an irregular flat bone in shape, is divided into head, body, neck three parts, and head of talus occupy the front end of astragalus, and body of talus occupies the most of volume in astragalus back, the constriction zone of cervical region between head and body.
A kind of pollex of embodiments of the invention is as shown in fig. 1 dissected locking steel plate with the joint fusion outside, comprises tabular tibia fixed part 1, astragalus fixed part 2 and calcaneus fixed part 3.
Tibia fixed part 1, astragalus fixed part 2 and calcaneus fixed part 3 are connected successively.The length of tabular tibia fixed part is obviously greater than its width and thickness.Astragalus fixed part 2 and calcaneus fixed part 3 are crooked curved successively along the width of tibia fixed part 1.Namely along as shown in fig. 1 direction from left to right.And as shown in Figure 2, be the angle α of 125 ~ 135 degree between the calcaneus fixed part 3 that so is bent to form and the tibia fixed part 1.
The length of astragalus fixed part 2 is 2.5 ~ 3cm, and the length of calcaneus fixed part 3 is 4 ~ 5cm, thereby makes locking steel plate be fixed on calcaneus near the outside of astragalus one end, to avoid on the calcaneus reaching enough intensity away from the loose zone of bone density of the astragalus other end.At least be provided with a steel nail fixing hole on tibia fixed part 1, astragalus fixed part 2 and the calcaneus fixed part 3.
Pollex of the present invention is dissected locking steel plate with the joint fusion outside and is met pollex more with the outside, joint anatomic form, the applying distal tibial, astragalus and calcaneus outside bone surface, and the spatial arrangement of screw hole is more reasonable, use more easyly, constant intensity is also more firm, and it is convenient to have an operation technique, constant intensity is reliable, reduces advantages such as local soft tissue tension force.
As shown in fig. 1, in the locking steel plate of embodiments of the invention, tibia fixed part 1, astragalus fixed part 2 and calcaneus fixed part 3 are structure as a whole.Integrative-structure comparatively is convenient for carrying and installs.
As shown in Figure 2, in the locking steel plate of embodiments of the invention, between tibia fixed part and the astragalus fixed part, be angle β and the angle γ of 22.5 ~ 27.5 degree between astragalus fixed part and the calcaneus fixed part.Crooked also finally making forms 125 ~ 135 angle α that spend between calcaneus fixed part 3 and the tibia fixed part 1 so gradually.And form a level and smooth arc, be easy to be fixed on the bone.
In the locking steel plate of embodiments of the invention, the length of tibia fixed part is 8 ~ 10cm.The length of tibia fixed part is fixed as suitablely to be suitable for tibia, and present embodiment is not restricted this.
In addition, as shown in Fig. 1 and Fig. 2, in the locking steel plate of embodiments of the invention, tibia fixed part 1 be shaped as straight plate shape.Straight plate shape is fit to the anatomic form of lateral of tibia.
As shown in Figure 3, the angle δ that is 4 ~ 5 degree between calcaneus fixed part 3 and the plane, tibia fixed part 1 place.And the angle of preferred angle δ is 4.3 degree.Because astragalus lateral surface, external malleolus associated section and facies articularis calcanea posterior associated section below are outstanding laterally, calcaneus axis and pollex axis are angled on crown position.So, be certain angle between calcaneus fixed part 3 and the plane, tibia fixed part 1 place and be suitable apart from calcaneus outside anatomic form.
Shown in Fig. 3, calcaneus fixed part 3 be shaped as straight plate shape, 2 bendings of astragalus fixed part are the angles of 4 ~ 5 degree.By the bending of astragalus fixed part 2, make to be certain angle between calcaneus fixed part 3 and the plane, tibia fixed part 1 place.In the present embodiment, the side of astragalus fixed part 2 can be parallelepiped, as shown in Figure 3, connect with calcaneus fixed part 3 and parallel limit and is connected with astragalus fixed part 2 and parallel limit between be 175 ~ 176 angles of spending.And the angle of preferred 175.7 degree.
In addition, in the locking steel plate of embodiments of the invention, the length of calcaneus fixed part is 2.5 ~ 3:2 ~ 2.5 with the ratio of width.The width of tibia fixed part is 2 ~ 2.5:3 ~ 3.5 with the ratio of length.
In addition, in the locking steel plate of embodiments of the invention, the hole axle of at least one fixing hole not with the normal parallel on tibia fixed part, astragalus fixed part or plane, calcaneus fixed part place.As shown in fig. 1, in the locking steel plate of present embodiment, tibia fixed part 1 is provided with 5 fixing holes, and astragalus fixed part 2 is provided with 2 fixing holes, and calcaneus fixed part 3 is provided with 5 fixing holes.
The direction of the line between the fixing hole on the astragalus fixed part 2 not with tibia fixed part 1 on fixing hole between the direction of line parallel.Thereby forming intersection locks.Simultaneously, the hole axle of the fixing hole on the astragalus fixed part 2 also can be also not parallel, thereby further strengthen the intensity of locking.
As shown in Figure 4, in the locking steel plate of embodiments of the invention, pollex is dissected locking steel plate in people's ankle fixed-site with the joint fusion outside, tibia fixed part 1 usefulness screw is fixed on the distal tibial outside by fixing hole, astragalus fixed part 2 usefulness screws are fixed on the astragalus outside by fixing hole, and calcaneus fixed part 3 usefulness screws are fixed on calcaneus near the outside of astragalus one end by fixing hole.So, even for there being tangible calcaneus hole patient, the locking steel plate in the present embodiment obtains effectively fixing in that also can avoid should the zone.
More than specific embodiments of the invention are described in detail, but it is just as example, the present invention is not restricted to specific embodiment described above.To those skilled in the art, any equivalent modifications that the present invention is carried out and substituting also all among category of the present invention.Therefore, not breaking away from impartial conversion and the modification of doing under the spirit and scope of the present invention, all should contain within the scope of the invention.
Claims (10)
1. a pollex is dissected locking steel plate with the joint fusion outside, it is characterized in that, comprise tabular tibia fixed part, astragalus fixed part and calcaneus fixed part, described tibia fixed part, the astragalus fixed part is connected successively with the calcaneus fixed part, described astragalus fixed part and calcaneus fixed part are crooked curved successively along the width of tibia fixed part, the angle that is 125 ~ 135 degree between described calcaneus fixed part and the tibia fixed part, the length of described astragalus fixed part is 2.5 ~ 3cm, the length of described calcaneus fixed part is 4 ~ 5cm, described tibia fixed part, at least be provided with a steel nail fixing hole on astragalus fixed part and the calcaneus fixed part.
2. pollex as claimed in claim 1 is dissected locking steel plate with the joint fusion outside, it is characterized in that described tibia fixed part, astragalus fixed part and calcaneus fixed part are structure as a whole.
3. pollex as claimed in claim 1 is dissected locking steel plate with the joint fusion outside, it is characterized in that, is the angle of 22.5 ~ 27.5 degree between described tibia fixed part, astragalus fixed part, the calcaneus fixed part successively.
4. pollex as claimed in claim 1 is dissected locking steel plate with the joint fusion outside, it is characterized in that the length of described tibia fixed part is 8 ~ 10cm.
5. pollex as claimed in claim 1 is dissected locking steel plate with the joint fusion outside, it is characterized in that, described tibia fixed part be shaped as straight plate shape.
6. pollex as claimed in claim 5 is dissected locking steel plate with the joint fusion outside, it is characterized in that, is the angle of 4 ~ 5 degree between described calcaneus fixed part and the plane, described tibia fixed part place.
7. pollex as claimed in claim 6 is dissected locking steel plate with the joint fusion outside, it is characterized in that, described calcaneus fixed part be shaped as straight plate shape, described astragalus fixed part bending is the angles of 4 ~ 5 degree.
8. pollex as claimed in claim 1 is dissected locking steel plate with the joint fusion outside, it is characterized in that the length of described calcaneus fixed part is 2.5 ~ 3:2 ~ 2.5 with the ratio of width.
9. pollex as claimed in claim 1 is dissected locking steel plate with the joint fusion outside, it is characterized in that the width of described tibia fixed part is 2 ~ 2.5:3 ~ 3.5 with the ratio of length.
10. pollex as claimed in claim 1 is dissected locking steel plate with the joint fusion outside, it is characterized in that, the hole axle of at least one described fixing hole not with the normal parallel on described tibia fixed part, astragalus fixed part or plane, calcaneus fixed part place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210007106.5A CN103202725B (en) | 2012-01-11 | 2012-01-11 | Pollex dissects locking steel plate with outside joint fusion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210007106.5A CN103202725B (en) | 2012-01-11 | 2012-01-11 | Pollex dissects locking steel plate with outside joint fusion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103202725A true CN103202725A (en) | 2013-07-17 |
| CN103202725B CN103202725B (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210007106.5A Expired - Fee Related CN103202725B (en) | 2012-01-11 | 2012-01-11 | Pollex dissects locking steel plate with outside joint fusion |
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| Country | Link |
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| CN (1) | CN103202725B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105101898A (en) * | 2014-03-25 | 2015-11-25 | 瑞特医疗技术公司 | Posterior ankle fusion plate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201324284Y (en) * | 2008-11-27 | 2009-10-14 | 常州亨杰医疗器械有限公司 | Proximal tibia lateral angulation fixed bone collecting plate |
| US20090312760A1 (en) * | 2004-10-07 | 2009-12-17 | Zimmer, Inc. | Bone fracture fixation system |
| US20100057133A1 (en) * | 2008-08-26 | 2010-03-04 | Simon William H | Tibia-talus-calcaneus (T-T-C) locking plate |
| CN201831943U (en) * | 2010-11-01 | 2011-05-18 | 厦门大博颖精医疗器械有限公司 | Tibial fracture fixing mechanism |
| US20110282397A1 (en) * | 2009-12-11 | 2011-11-17 | Small Bone Innovations, Inc. | Ankle Fusion Device, Instrumentation and Methods |
-
2012
- 2012-01-11 CN CN201210007106.5A patent/CN103202725B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090312760A1 (en) * | 2004-10-07 | 2009-12-17 | Zimmer, Inc. | Bone fracture fixation system |
| US20100057133A1 (en) * | 2008-08-26 | 2010-03-04 | Simon William H | Tibia-talus-calcaneus (T-T-C) locking plate |
| CN201324284Y (en) * | 2008-11-27 | 2009-10-14 | 常州亨杰医疗器械有限公司 | Proximal tibia lateral angulation fixed bone collecting plate |
| US20110282397A1 (en) * | 2009-12-11 | 2011-11-17 | Small Bone Innovations, Inc. | Ankle Fusion Device, Instrumentation and Methods |
| CN201831943U (en) * | 2010-11-01 | 2011-05-18 | 厦门大博颖精医疗器械有限公司 | Tibial fracture fixing mechanism |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105101898A (en) * | 2014-03-25 | 2015-11-25 | 瑞特医疗技术公司 | Posterior ankle fusion plate |
| CN105101898B (en) * | 2014-03-25 | 2018-04-03 | 瑞特医疗技术公司 | Ankle fusion plate afterwards |
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| Publication number | Publication date |
|---|---|
| CN103202725B (en) | 2015-09-16 |
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