CN209996458U - Combined tibial plateau posterolateral dissection steel plate - Google Patents
Combined tibial plateau posterolateral dissection steel plate Download PDFInfo
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- CN209996458U CN209996458U CN201822180752.7U CN201822180752U CN209996458U CN 209996458 U CN209996458 U CN 209996458U CN 201822180752 U CN201822180752 U CN 201822180752U CN 209996458 U CN209996458 U CN 209996458U
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- plate body
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 14
- 239000010959 steel Substances 0.000 title claims abstract description 14
- 238000002224 dissection Methods 0.000 title abstract description 9
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 14
- 210000002303 tibia Anatomy 0.000 claims description 8
- 210000000426 patellar ligament Anatomy 0.000 claims description 3
- 208000010392 Bone Fractures Diseases 0.000 description 36
- 206010017076 Fracture Diseases 0.000 description 24
- 210000000629 knee joint Anatomy 0.000 description 7
- 210000002082 fibula Anatomy 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 208000014674 injury Diseases 0.000 description 3
- 210000005036 nerve Anatomy 0.000 description 3
- 241000131317 Capitulum Species 0.000 description 2
- 208000028389 Nerve injury Diseases 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 210000004204 blood vessel Anatomy 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008764 nerve damage Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000008733 trauma Effects 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 208000036487 Arthropathies Diseases 0.000 description 1
- 206010010149 Complicated fracture Diseases 0.000 description 1
- 208000005137 Joint instability Diseases 0.000 description 1
- 208000006735 Periostitis Diseases 0.000 description 1
- 206010048873 Traumatic arthritis Diseases 0.000 description 1
- 241001227561 Valgus Species 0.000 description 1
- 210000003484 anatomy Anatomy 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 210000003414 extremity Anatomy 0.000 description 1
- 210000003041 ligament Anatomy 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 210000003460 periosteum Anatomy 0.000 description 1
- 210000004345 peroneal nerve Anatomy 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
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Abstract
The utility model relates to a modular tibial plateau posterolateral dissection steel plate, by the bone plate board body, the place ahead stationary vane, side stationary vane and rear baffle are constituteed, place ahead stationary vane and side stationary vane are located the both sides of bone plate board body upper end respectively, 2 locking screw holes of place ahead stationary vane, 2 locking screw holes of side stationary vane, the direction of the locking screw hole in rear baffle middle part all is towards tibial plateau posterolateral, the rear end of rear baffle is connected with the rear end of side stationary vane, rear baffle rear end arranges 2 and the screw direction of place ahead stationary vane and the internal thread hole that matches, the locking screw hole of place ahead stationary vane is less than 1 screw hole diameter of the locking screw hole of side stationary vane, bone plate board body is located bone level has locking screws, the direction is towards tibial plateau inboard.
Description
Technical Field
The utility model belongs to the field of medical equipment used in orthopedic surgery, in particular to a combined tibial plateau back-outer dissection steel plate.
Background
The area on the tibial plateau is divided as shown in fig. 1: with O as the center, the area of AOB as the medial pole, the area of AOC as the lateral pole and the area of BOC as the posterior pole, fractures mostly affect the anterior-lateral and posterior-medial areas of the tibial plateau, with the posterior-lateral tibial plateau accounting for about 7%. The most common mechanism of such fracture injury is the bending of knee joint, which is caused by the impact of femoral condyle on the posterior tibial plateau due to the violence of axial and valgus. The specific expression is simple fracture, also can be complicated fracture, involve other quadrants of platform or be accompanied by fibula capitulum fracture, fracture form characteristics show splitting and collapse: the fracture is in an inverted cone shape, the joint surface is small, the broken fracture line is short, and the fracture is collapsed in different degrees.
The defects of the prior art are as follows:
, adopting anterolateral approach is that the fibula covers the posterior lateral quadrant of the tibial plateau and the adjacent common peroneal nerve and the blocking of the ligament structure of the posterior external corner of the knee joint, so that the type of bone can not be effectively reset and fixed;
secondly, although the fracture area can be exposed by adopting a posterior approach, the operation trauma is large, important vascular nerves are easy to be damaged, and the treatment of the fracture of the anterior-lateral tibial plateau cannot be considered.
And thirdly, selecting a multi-incision and multi-bone-plate fixation, if a back-inner side inverted L-shaped approach is matched with a back-side reconstruction support bone-plate fixation, the method has good fixation effect, but the operation trauma is large, and the functional recovery of the knee joint after the operation is seriously influenced. If the articular surface does not reach the anatomical reduction, complications such as knee joint instability, traumatic arthritis and the like occur after the operation, which leads to the knee joint dysfunction and the life quality of patients to be reduced.
Disclosure of Invention
The utility model aims at providing an modular tibial plateau back outside dissection steel sheet, to the regional splitting in the back outside of tibial plateau with collapse, can accomplish the good fixed to tibial plateau back outside platform fracture under the notched condition in the single outside of adoption, avoided traditional fixed method to have the wound big, bleed many, shortcomings such as operation time length.
The purpose of the utility model is realized through the following technical scheme:
combined tibial plateau posterolateral anatomic steel plate comprises a bone fracture plate body 2, a front fixing wing 4, a side fixing wing 3 and a rear baffle plate 1, wherein the bone fracture plate body 2 is a longitudinal strip-shaped plate surface, the front fixing wing 4 and the side fixing wing 3 are respectively positioned on two sides of the upper end of the bone fracture plate body 2, the front fixing wing 4, the side fixing wing 3 and the bone fracture plate body 2 are in a -body structure, the inner surface of the anatomic steel plate consisting of the bone fracture plate body 2, the front fixing wing 4, the side fixing wing 3 and the rear baffle plate 1 is matched with an anatomic structure of the front side, the outer side and the rear side of the proximal end of a tibia, 2 locking screw holes are arranged in the length direction of the front fixing wing 4 and are in a direction towards a tibial plateau posterolateral plateau, 2 locking screw holes are arranged in the length direction of the lateral fixing wing 3 and are in a direction towards the rear outer side of the tibial plateau, the front end of the rear baffle plate 1 and the rear end of the lateral fixing wing 3 are in a direction lower than the diameter of the locking screw holes of the locking wing plate body 54, the locking wing plate body, the locking screw holes are in a vertical direction towards the front end of the locking wing, locking wing plate, and a distance from the locking screw holes of the locking wing plate is smaller than that of the locking screw holes of the locking wing plate body is equal to the locking wing plate body of the locking wing plate 4.
As a more excellent technical solution of the utility model: the width of the arc-shaped part of the front fixing wing is 1.4-2.2cm, and the inner side edge does not exceed the patellar ligament; the width of the lateral fixed wing is 1.1cm, the length of the lateral fixed wing is 3.5-4.0cm, and the screw hole distance is 0.8-1.0 cm; the width of the rear baffle is 1.1cm, the length of the rear baffle is designed according to CT data, the screw hole spacing is 0.6-0.8cm, and the inner side edge does not exceed the center of the rear side column; the width of the bone fracture plate body is 1.1cm, the length is determined according to specific fracture types, the length is 7.0-15cm, and the distance between screw holes is 1.0 cm.
Advantageous effects
The utility model discloses can accomplish on the basis of the way is gone into in the front outside and merge the firm fixed of back outside platform fracture, put into mode simple accurate. After the implantation, the structure of the artificial limb does not interfere or damage nerves and blood vessels around the knee joint, so that the bleeding amount and the risk of nerve injury in the operation are greatly reduced.
Drawings
Fig. 1 is a schematic view of the area on the tibial plateau divided as shown in fig. 1;
FIG. 2 is a perspective view of the utility model in use;
fig. 3 is a plan view of the usage state of the present invention;
fig. 4 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will now be described in further detail at with reference to the accompanying drawings.
As shown in FIG. 4, the utility model provides a combined tibial plateau posterolateral dissection steel plate, which consists of a bone fracture plate body 2, a front fixing wing 4, a side fixing wing 3 and a rear baffle plate 1, wherein the bone fracture plate body 2 is a longitudinal strip-shaped plate surface, the front fixing wing 4 and the side fixing wing 3 are respectively positioned at two sides of the upper end of the bone fracture plate body 2, the front fixing wing 4 and the side fixing wing 3 are matched with the bone fracture plate body 2 in body structure, the bone fracture plate body 2, the front fixing wing 4, the side fixing wing 3 and the rear baffle plate 1 form an dissection steel plate with the inner surface matched with the anatomical structure of the front side, the outer side and the rear side of the proximal tibia, 2 locking screw holes are arranged in the length direction of the front fixing wing 4, the locking screw holes are in the direction towards the tibia posterolateral platform outer side platform for supporting and fixing the posterolateral fracture block, 2 locking screw holes are arranged in the length direction of the side fixing wing 3, the locking screw holes are in the direction towards the tibia platform outer side, the front fixing wing plate body and the bone fracture plate rear end of the locking wing plate, the locking screw holes are lower than the screw holes of the locking wing plate 2 locking screw holes of the lateral locking wing plate body, the locking wing plate body 2, the locking screw holes are arranged in the locking wing plate body, the locking screw holes of the locking wing plate body, the locking wing plate, the locking screw holes are lower than the locking screw holes of the locking wing plate, the locking screw holes of the locking wing plate, the locking screw holes of the locking wing plate body is equal to the locking screw holes of the locking wing plate, the locking wing.
The dissection steel plate of the utility model is formed by 3D printing, the width of the arc part of the front fixed wing is 1.4-2.2cm, and the inner edge does not exceed the patellar ligament; the width of the lateral fixed wing is 1.1cm, the length of the lateral fixed wing is 3.5-4.0cm, and the screw hole distance is 0.8-1.0 cm; the width of the rear baffle is 1.1cm, the length of the rear baffle is designed according to CT data, the screw hole spacing is 0.6-0.8cm, and the inner side edge does not exceed the center of the rear side column; the width of the bone fracture plate body is 1.1cm, the length is determined according to specific fracture types, the length is 7.0-15cm, and the distance between screw holes is 1.0 cm.
As shown in fig. 2 and 3, for the patients with combined lateral plateau fracture, the usage steps of the utility model are as follows:
1. taking an anterior-lateral incision of the tibial plateau, carrying out blunt separation to periosteum, carrying out osteotomy in a non-load bearing area of the anterior-lateral side of the tibial plateau, exposing a posterior-lateral fracture part of the tibial plateau, resetting and temporarily fixing the posterior-lateral fracture.
2. The rear baffle plate 1 is arranged behind the tibial platform, a thin Kirschner wire is used for temporary fixation, holes are drilled from outside to inside through locking screw holes of the rear baffle plate 1, the depth is measured, and 1 locking screw is arranged.
3. The reduction osteotomy piece is put into the 'tibial plateau posterolateral dissection steel plate', the screw hole at the front end of the rear baffle plate 1 is connected with the screw hole at the rear end of the lateral fixed wing 3 through screws, a thin Kirschner wire is used for temporarily fixing the steel plate, the lateral fixed wing 3 is drilled from the outside to the inside and is used for measuring the depth, 2 locking screws are selected to fix the posterolateral fracture piece, and the direction of the screw hole on the lateral fixed wing 3 is determined according to the position of the posterolateral fracture piece.
4. After the screw of the side fixed wing 3 is placed in the hole, the electric drill is used for drilling the hole through the front fixed wing and measuring the depth, 1-2 locking screws are selected to fix the back outer side fracture block, the direction of the screw hole on the front fixed wing 4 is determined according to the position of the back outer side fracture block, the direction of the screw hole is matched with the inner thread of the back baffle, and the pressurizing effect can be achieved.
5. After the front fixing wing screw is placed into the bone plate, the locking screw at the near end of the bone plate body 2 is placed into the bone plate, the direction of the locking screw faces to the inner side platform and is used for pressurizing and fixing the osteotomy block, and finally 2-3 locking screws are placed into the far end of the bone plate body 2 to complete fixation.
Compared with the improved anterior-lateral approach (Gerdy tubercle osteotomy, fibula osteotomy, biceps femoris fibula osteotomy, femoral external epicondyle osteotomy), the posterior-lateral approach (Carlson posterior-lateral approach, osteotomy through fibula neck and fibula capitulum) and the posterior-medial inverted L-shaped approach in the prior art, the utility model discloses an anterior-lateral single incision, lateral platform non-load area osteotomy can reset and fix the posterior-lateral fracture of tibial platform, and can also fix the lateral platform fracture at the same time, the implantation mode is simple and easy, and the structure does not interfere or destroy the nerve and blood vessel around the knee joint, greatly reduces the bleeding volume in the operation and the risk of nerve injury, and can reach satisfactory clinical treatment effect and postoperative function recovery.
Claims (2)
- The combined tibia platform rear outer side anatomical steel plate is characterized by comprising a bone plate body (2), a front fixing wing (4), side fixing wings (3) and a rear baffle plate (1), wherein the bone plate body (2) is a longitudinal strip-shaped plate surface, the front fixing wings (4) and the side fixing wings (3) are respectively positioned at two sides of the upper end of the bone plate body (2), the front fixing wings (4) and the side fixing wings (3) are in a body structure with the bone plate body (2), the inner surface of the anatomical steel plate consisting of the bone plate body (2), the front fixing wings (4), the side fixing wings (3) and the rear baffle plate (1) is matched with the structures of the front side, the outer side and the rear side surfaces of the proximal tibia, 2 locking screw holes are arranged in the length direction of the front fixing wings (4), the locking screw holes are arranged in the direction towards the tibia rear outer side platform, the locking screw holes are arranged in the length direction of the lateral side fixing wings (3), the locking screw holes are arranged in the direction towards the tibia rear outer side platform, the locking screw holes of the locking wings (3) are arranged in the longitudinal direction of the tibial platform rear side fixing wings, the locking screw holes are arranged in the longitudinal direction of the tibial platform, the locking screw holes of the tibial platform rear side fixing wings (3), the locking screw holes, the locking wings are arranged in the longitudinal direction of the locking wings, the locking screw holes, the locking wings, the locking screw holes of the locking wings (3) are arranged in the longitudinal locking wings, the longitudinal locking screw holes of the locking wings are lower than the locking wings, the locking screw holes of.
- 2. The combined tibial plateau posterolateral anatomical plate as defined in claim 1, wherein the anterior fixation wing (4) has an arc width of 1.4-2.2cm, the medial edge does not exceed the patellar ligament, the lateral fixation wing (3) has a width of 1.1cm, a length of 3.5-4.0cm, and a screw hole pitch of 0.8-1.0cm, the posterior flap (1) has a width of 1.1cm, and a length designed according to CT data, and a screw hole pitch of 0.6-0.8cm, and a medial edge does not exceed the center of the posterior lateral column, and the plate body (2) has a width of 1.1cm, and a length determined according to a specific fracture type, and a length of 7.0-15cm, and a screw hole pitch of 1.0 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822180752.7U CN209996458U (en) | 2018-12-25 | 2018-12-25 | Combined tibial plateau posterolateral dissection steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822180752.7U CN209996458U (en) | 2018-12-25 | 2018-12-25 | Combined tibial plateau posterolateral dissection steel plate |
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| Publication Number | Publication Date |
|---|---|
| CN209996458U true CN209996458U (en) | 2020-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822180752.7U Active CN209996458U (en) | 2018-12-25 | 2018-12-25 | Combined tibial plateau posterolateral dissection steel plate |
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| Country | Link |
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| CN (1) | CN209996458U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109480993A (en) * | 2018-12-25 | 2019-03-19 | 吉林大学第医院 | Combined tibial plateau posterolateral dissection steel plate |
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2018
- 2018-12-25 CN CN201822180752.7U patent/CN209996458U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109480993A (en) * | 2018-12-25 | 2019-03-19 | 吉林大学第医院 | Combined tibial plateau posterolateral dissection steel plate |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201201 Address after: No. 888, intersection of beiyuanda street and Baocheng Road, Beihu science and Technology Development Zone, Changchun City, Jilin Province Patentee after: Jilin dimai Intelligent Technology Co.,Ltd. Address before: 130000, 71 Xinmin Avenue, Changchun, Jilin, Chaoyang District Patentee before: The First Hospital of Jilin University |