CN214761417U - Bone fracture plate for fixing posterior ankle fracture - Google Patents
Bone fracture plate for fixing posterior ankle fracture Download PDFInfo
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- CN214761417U CN214761417U CN202120361461.7U CN202120361461U CN214761417U CN 214761417 U CN214761417 U CN 214761417U CN 202120361461 U CN202120361461 U CN 202120361461U CN 214761417 U CN214761417 U CN 214761417U
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Abstract
A bone fracture plate for fixing the fracture of the back ankle belongs to the technical field of orthopedic surgical instruments and is used for fixing the fracture of the back ankle. The technical scheme is as follows: the tibia fixing plate is a longitudinal strip plate, the bending connecting plate is an oblique strip plate, the upper end of the bending connecting plate is connected to one side of the lower end of the tibia fixing plate, an included angle is formed between the surface of the bending connecting plate and the surface of the tibia fixing plate, the included angle is matched with the intersection angle of the front side surface of the tibia and the back side surface of the tibia, the lower end of the bending connecting plate is connected with the upper end of the rear ankle fracture fixing plate, the rear ankle fracture fixing plate is an arc-shaped plate, the circular radian of the surface of the rear ankle fracture fixing plate is matched with the surface of the rear ankle, the tibia fixing plate is fixedly connected with the front side surface of the tibia through fixing screws, and the rear ankle fracture fixing plate is tightly connected with the surface of a rear ankle fracture block. The utility model can complete the good fixation of the back ankle fracture under the condition of adopting a single inner side or outer side incision, and has the advantages of novel structure, short operation time, small wound and the like.
Description
Technical Field
The utility model relates to a bone fracture plate for fixing rear ankle fracture, belonging to the technical field of orthopedic surgery instruments.
Background
Posterior ankle fractures are often encountered in clinical work and are mostly caused by the combined action of high-energy vertical violence and low-energy rotational shear. Clinically, according to the horizontal CT image display of the distal tibial articular surface, the posterior ankle fracture is divided into two conditions, one is the posterior lateral ankle fracture, and the other is the posterior medial ankle fracture, wherein the posterior lateral ankle fracture is the most common fracture and accounts for about 67%, and the posterior lateral ankle fracture is often combined with the posterior medial ankle fracture at the same time. The posterior ankle fracture needs to be treated by operation, and the aim of the operation treatment is to fully restore the fracture block, restore the force line of the lower limb and the joint surface to be flat and rebuild the function of the ankle joint. The current clinical surgical approaches mainly include the following two approaches:
(1) conventional medial or lateral approaches. When a traditional medial or lateral approach is used for treating the posterior ankle fracture, the posterior ankle fracture is usually reduced indirectly, namely, screws are screwed in from the front to the back under the perspective of a C-shaped arm X-ray machine. Because the back ankle fracture mostly is the oblique fracture, the art person can't guarantee that the screw can pass through the fracture face perpendicularly, and when fracture piece thickness was not enough to hold screw thread length, then can't reach firm fixed, still probably takes place simultaneously because of the screw wear out back ankle bone piece and amazing tibialis posterior muscle tendon, leads to its function limited. Whether the rear side structure is exposed, the fracture reduction condition is evaluated, the internal fixation is implanted and the like are limited to a greater degree. Therefore, the traditional medial and lateral approaches are more suitable for cases in which the posterior ankle fracture block is smaller and can be indirectly reduced through ligament traction after the reduction and fixation of the medial and lateral ankle fractures. For the cases of large fracture blocks of the posterolateral ankle or comminuted fracture, the reduction and the existing internal fixation effects are poor.
(2) The posterior lateral approach of the ankle joint. Currently, many experts and surgeons prefer to treat complicated posterior ankle fractures using a posterolateral approach in combination with other approaches, which can fully expose the fracture and have good fixation effect, but when implanted into the posterior side bone plate, the peripheral anatomy is complicated due to the close proximity of the sural nerve and the sural artery, increasing the difficulty of the operation and the risks during the operation.
In summary, the currently used methods for posterior ankle fracture all have certain defects, and cannot achieve satisfactory operation effects, so that innovative design is necessary to develop a new instrument for fixing the posterior ankle fracture.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a coaptation board for fixing back ankle fracture is provided, this kind of coaptation board can accomplish the good fixed to back ankle fracture under the condition that adopts single inboard or outside incision, has novel structure, operation time weak point, the wound is little in the art, advantages such as treatment is showing.
The technical scheme for solving the technical problems is as follows:
a bone fracture plate for fixing rear ankle fracture, which comprises a tibia fixing plate and a bending connecting plate, the rear ankle fracture fixing plate is a longitudinal strip plate, the bending connecting plate is an oblique strip plate, the upper end of the bending connecting plate is connected to one side of the lower end of the tibia fixing plate, an included angle is formed between the surface of the bending connecting plate and the surface of the tibia fixing plate, the included angle is matched with the intersection angle of the front side surface of the tibia and the back surface of the tibia, the lower end of the bending connecting plate is connected with the upper end of the rear ankle fracture fixing plate, the rear ankle fracture fixing plate is an arc-shaped plate, the circular radian of the surface of the rear ankle fracture fixing plate is matched with the surface of the rear ankle, a plurality of fixing screws are distributed in the length direction of the surface of the tibia fixing plate, the screws fixedly connect the tibia fixing plate and the front side surface of the tibia through the fixing screws, and the rear ankle fracture fixing plate is closely connected with the surface of a rear ankle fracture block.
According to the bone fracture plate for fixing the rear ankle fracture, the fixing screw holes in the plate surface of the tibia fixing plate are of a double-hole connecting structure, the double holes are respectively a locking screw hole and a common screw hole, and the locking screw hole and the common screw hole are respectively screwed with the locking screw and the tension screw.
The above-mentioned bone fracture plate for fixing back ankle fracture, the shin bone fixed plate is shin bone outside fixed plate, and the connecting plate of buckling is the outer bending connecting plate, and back ankle fracture fixed plate is back ankle outside fracture fixed plate, and the face internal surface of shin bone outside fixed plate and the outer side shape looks adaptation before the shin bone, the face internal surface and the outer side shape looks adaptation of back ankle outside fracture fixed plate are connected by the outer bending connecting plate between shin bone outside fixed plate and the back ankle outside fracture fixed plate, and shin bone outside fixed plate and back ankle outside fracture fixed plate are connected with the surface of shin bone outside and back ankle outside fracture piece respectively.
Above-mentioned a coaptation board for fixing back ankle fracture, the shin bone fixed plate is the inboard fixed plate of shin bone, and the connecting plate of buckling is the internal bending connecting plate, and back ankle fracture fixed plate is the inboard fracture fixed plate of back ankle, and the face internal surface of the inboard fixed plate of shin bone and the preceding medial surface shape looks adaptation of shin bone, the face internal surface and the medial surface shape looks adaptation of back ankle inboard fracture fixed plate of back ankle are connected by the internal bending connecting plate between the inboard fixed plate of shin bone and the inboard fracture fixed plate of back ankle, and the inboard fixed plate of shin bone and the inboard fracture fixed plate of back ankle are connected with the surface of the medial surface before shin bone and the inboard fracture piece of back ankle respectively.
The utility model has the advantages that:
the utility model discloses a back ankle fracture fixed plate that shin bone fixed plate lower extreme is connected can realize only using under the condition that single inboard or outside standard entered the way, can put into the coaptation board, accomplishes the pressurization fixed to back ankle fracture. The placing mode is simple and easy. After the bone fracture plate is implanted, the structure of the bone fracture plate does not interfere or damage nerves and blood vessels around the ankle joint, and the bleeding amount and the risk of nerve injury in the operation are greatly reduced.
The utility model creatively provides a structure of multi-plane fixation, breaks the concept of single-plane fixation used in the conventional orthopedic surgery, provides a novel fixation mode of multi-plane and three-dimensional fixation in a breakthrough manner, and skillfully solves the clinical key and difficult problems of the back ankle fracture. When the back ankle fracture is accompanied with the external ankle or the internal ankle fracture, the fixation can be completed only through a single incision, the back ankle fracture is treated independently without adding an additional incision (a back side incision), the operation wound, the operation time and the incidence rate of intra-operative and post-operative complications are greatly reduced, the early healing of the fracture and the early functional exercise are facilitated, the better treatment effect is achieved, the operation burden of a clinician is greatly reduced, the win-win situation of medical care personnel and patients is realized, the obvious economic benefit and social benefit are achieved, and the popularization and use value in the back ankle fracture operation treatment is good.
Drawings
FIG. 1 is a schematic view of the present invention for fixing a fracture of the lateral posterior ankle;
FIG. 2 is a schematic view of the present invention for fixing the fracture of the medial malleolus;
FIG. 3 is a schematic view of the use of FIG. 1 to fix a lateral fracture of the posterior ankle;
FIG. 4 is a schematic view of the use of FIG. 2 to fix a fracture of the medial malleolus;
fig. 5 is a schematic view of the present invention in use for fixing both lateral and medial fractures of the posterior malleolus.
The figures are labeled as follows: the tibia fracture fixing plate comprises a tibia outer side fixing plate 1, an outer bending connecting plate 2, a tibia outer side fracture fixing plate 3, a tibia inner side fixing plate 4, an inner bending connecting plate 5, a tibia inner side fracture fixing plate 6, a fixing screw hole 7, a tibia 8, a tibia front outer side surface 9, a tibia front inner side surface 10, a tibia back surface 11, a tibia back outer side surface 12 and a tibia back inner side surface 13.
Detailed Description
The utility model consists of a tibia fixed plate, a bending connecting plate and a rear ankle fracture fixed plate.
Since the fracture of the posterior ankle may occur on the lateral or medial side of the posterior ankle, the posterior ankle fracture fixation plates need to be applied to the lateral and medial sides of the posterior ankle, respectively, and the corresponding tibial fixation plates need to be connected to the lateral and medial sides of the tibia. Therefore, the utility model discloses a back ankle fracture fixed plate just includes back ankle outside fracture fixed plate 3 and back ankle inboard fracture fixed plate 6, and the shin bone fixed plate that corresponds includes shin bone outside fixed plate 1 and shin bone inboard fixed plate 4, and the connecting plate of buckling includes outer bending type connecting plate 2 and the internal bending type connecting plate 5, is used for the fixed of back ankle outside fracture and back ankle inboard fracture respectively after their combination.
Fig. 1 shows, shin bone outside fixed plate 1 is fore-and-aft rectangular slab, the face internal surface of shin bone outside fixed plate 1 and the 9 looks adaptations of shin bone lateral surface 9 shape, outer bending connecting plate 2 is the diagonal rectangular slab, the lower extreme one side at shin bone outside fixed plate 1 is connected to the upper end of outer bending connecting plate 2, there is the contained angle between the face of outer bending connecting plate 2 and the face of shin bone outside fixed plate 1, contained angle and shin bone lateral surface 9 and the rear 11 angle phase-match at the back, the lower extreme of outer bending connecting plate 2 is connected with the upper end of ankle malleolus outside fracture fixed plate 3, ankle malleolus outside fracture fixed plate 3 is circular arc shaped plate, the face circular arc degree and the 12 looks adaptations of ankle malleolus outside fracture fixed plate 3.
Fig. 2 shows, shin bone inboard fixed plate 4 is fore-and-aft rectangular board, the face internal surface of shin bone inboard fixed plate 4 and the 10 looks adaptations of medial surface before the shin bone, the lower extreme one side at shin bone inboard fixed plate 4 is connected to the upper end of internal bending connecting plate 5, there is the contained angle between the face of internal bending connecting plate 5 and the face of shin bone inboard fixed plate 4, the contained angle and the anterior medial surface 10 of shin bone and the angle phase-match of the back of the shin bone 11, the lower extreme of internal bending connecting plate 5 is connected with the upper end of the medial malleolus fracture fixed plate 6, medial malleolus fracture fixed plate 6 is the circular arc board, the face circular arc degree and the medial malleus 13 looks adaptations of medial malleolus of medial fracture fixed plate 6.
Fig. 1 and 2 show that a plurality of fixing screw holes 7 are distributed in the length direction of the plate surfaces of the tibia outer side fixing plate 1 and the tibia inner side fixing plate 4, the fixing screw holes 7 are of a double-hole connecting structure, the double holes are respectively a locking screw hole and a common screw hole, and a locking screw and a tension screw are respectively screwed in the locking screw hole and the common screw hole.
Fig. 3 shows that the screw fixedly connects the tibia outer side fixing plate 1 with the tibia anterolateral surface 9 through the fixing screw hole 7, the posterior malleolus outer side fracture fixing plate 3 is located outside the posterior malleolus lateral surface 12, and the inner surface of the posterior malleolus outer side fracture fixing plate 3 is closely connected with the surface of the posterior malleolus outer side fracture block to fix the posterior malleolus outer side fracture block.
Fig. 4 shows that the screws fixedly connect the tibia inner side fixing plate 4 with the tibia anterior inner side surface 10 through the fixing screw holes 7, the posterior ankle inner side fracture fixing plate 6 is located outside the posterior ankle inner side surface 13, and the inner surface of the posterior ankle inner side fracture fixing plate 6 is closely connected with the surface of the posterior ankle inner and outer side fracture block to fix the posterior ankle inner side fracture block.
Fig. 5 shows that when a fracture occurs on both the lateral and medial sides of the posterior malleolus, fixation can be performed on both the lateral and medial sides of the posterior malleolus. On one hand, the tibia outer side fixing plate 1 is fixedly connected with the tibia anterior lateral surface 9, and the posterior malleolus outer side fracture fixing plate 3 fixes the posterior malleolus outer side fracture block; on the other hand, the tibia inner fixing plate 4 is fixedly connected to the tibia antero-medial surface 10, and the posterior malleolus inner fracture fixing plate 6 fixes the posterior malleolus inner fracture fragment.
The utility model discloses a use as follows:
the utility model discloses broken current internal fixation coaptation board design conventional theory, through looking up methods such as literature and autopsy, CT three-dimensional reconstruction, biomechanics analysis, obtained relevant data about shank back ankle is dissected, the characteristics of fracture, according to the special anatomical morphology design of ankle joint, used key data is for measuring the acquisition for the first time by oneself. The fracture of the ankle usually accompanies the fracture of the medial malleolus or the lateral malleolus at the same time, and the application of the steel plate can simultaneously solve the fracture of the double malleolus through a single incision, thereby reducing the injury in the operation.
The utility model discloses at the operation in-process, the fixed operation of three kinds of circumstances such as the back ankle outside fracture is fixed, the inboard fracture of back ankle is fixed, the back ankle outside is fixed with the back ankle inboard simultaneously.
When the medial malleolus fracture is fixed to be operated, put into the coaptation board at the ankle department opening in patient's shank distal end, place shin bone inboard fixed plate 4 and fix through the bolt after targetting in place, fixed back, the angle of the face slope of the medial malleolus fracture fixed plate 6 of back ankle and the medial surface looks adaptation of back ankle. The surgical incision is convenient and simple to place through the internal ankle, the risk of injury to nerves and blood vessels from the surgical incision beside the achilles tendon at the posterior ankle is avoided, and the resetting and fixing are reliable.
When the external fracture of the posterior malleolus is fixed for operation, the external fracture of the lower leg of a patient is opened at the external malleolus, the bone fracture plate is put into, the external tibial fixing plate 1 is fixed through the bolt after being placed in place, and after the external tibial fracture fixing plate is fixed, the inclined angle of the plate surface of the external tibial fracture fixing plate 3 is matched with the external curved surface of the posterior malleolus. The external malleolus surgical incision is convenient and simple to place, the risk of injury to nerves and blood vessels from the surgical incision beside the achilles tendon at the posterior malleolus is avoided, and the reduction and fixation are reliable. In the operation process, important anatomical structures such as fibula, tibial nerve and tibial artery which influence fracture reduction and fixation are avoided, and the possibility of injury is greatly reduced.
The utility model discloses an embodiment as follows:
the length of the tibia lateral fixing plate 1 is 70mm, the width is 12mm, and the thickness is 3 mm;
the length of the outer bending connecting plate 2 is 50mm, the width is 12mm, the thickness is 3mm, and the inclination angle with the vertical direction is 60 degrees;
the length of the fracture fixing plate 3 at the lateral malleolus posterior is 20mm, the width is 15mm, and the thickness is 2.5 mm;
the length of the tibia inner side fixing plate 4 is 60mm, the width is 12mm, and the thickness is 3 mm;
the length of the internal bending connecting plate 5 is 40mm, the width is 12mm, the thickness is 3mm, and the inclination angle with the vertical direction is 60 degrees;
the length of the medial malleolus fracture fixing plate 6 is 20mm, the width is 15mm, and the thickness is 3 mm.
Claims (4)
1. A bone plate for fixing posterior ankle fractures, characterized in that: the ankle fracture plate comprises a tibia fixing plate, a bending connecting plate and a rear ankle fracture fixing plate, wherein the tibia fixing plate is a longitudinal strip plate, the bending connecting plate is an oblique strip plate, the upper end of the bending connecting plate is connected to one side of the lower end of the tibia fixing plate, an included angle is formed between the surface of the bending connecting plate and the surface of the tibia fixing plate, the included angle is matched with the intersection angle of the front side of the tibia and the rear side (11) of the tibia, the lower end of the bending connecting plate is connected with the upper end of the rear ankle fracture fixing plate, the rear ankle fracture fixing plate is an arc-shaped plate, the circular radian of the surface of the rear ankle fracture fixing plate is matched with the surface of a rear ankle, a plurality of fixing screws (7) are distributed in the length direction of the surface of the tibia fixing plate, the screws fixedly connect the tibia fixing plate and the front side of the tibia through the fixing screws (7), and the rear ankle fracture fixing plate is attached to the surface of a rear ankle fracture block.
2. A bone plate for fixation of a posterior ankle fracture according to claim 1, wherein: the fixing screw hole (7) on the plate surface of the tibia fixing plate is of a double-hole connecting structure, the double holes are respectively a locking screw hole and a common screw hole, and a locking screw and a tension screw are screwed in the locking screw hole and the common screw hole respectively.
3. A bone plate for fixation of a posterior ankle fracture according to claim 1, wherein: the tibia fixing plate is a tibia outer side fixing plate (1), the bending connecting plate is an outer bending connecting plate (2), the rear ankle fracture fixing plate is a rear ankle outer side fracture fixing plate (3), the inner surface of the plate surface of the tibia outer side fixing plate (1) is matched with the shape of the front outer side surface (9) of the tibia, the inner surface of the plate surface of the rear ankle outer side fracture fixing plate (3) is matched with the shape of the rear ankle outer side surface (12), the tibia outer side fixing plate (1) and the rear ankle outer side fracture fixing plate (3) are connected through the outer bending connecting plate (2), and the tibia outer side fixing plate (1) and the rear ankle outer side fracture fixing plate (3) are respectively connected with the surfaces of the front outer side surface (9) of the tibia and the rear ankle outer side fracture block.
4. A bone plate for fixation of a posterior ankle fracture according to claim 1, wherein: the tibia fixing plate is an inner tibia fixing plate (4), the bending connecting plate is an inner bending connecting plate (5), the rear ankle fracture fixing plate is a rear ankle inner side fracture fixing plate (6), the surface inner surface of the inner tibia fixing plate (4) is matched with the shape of the front inner tibia side surface (10), the surface inner surface of the rear ankle inner side fracture fixing plate (6) is matched with the shape of the rear ankle inner side surface (13), the inner tibia fixing plate (4) and the rear ankle inner side fracture fixing plate (6) are connected through the inner bending connecting plate (5), and the inner tibia fixing plate (4) and the rear ankle inner side fracture fixing plate (6) are respectively connected with the surfaces of the front inner tibia side surface (10) and the rear ankle inner side fracture block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120361461.7U CN214761417U (en) | 2021-02-09 | 2021-02-09 | Bone fracture plate for fixing posterior ankle fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120361461.7U CN214761417U (en) | 2021-02-09 | 2021-02-09 | Bone fracture plate for fixing posterior ankle fracture |
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| Publication Number | Publication Date |
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| CN214761417U true CN214761417U (en) | 2021-11-19 |
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| CN202120361461.7U Active CN214761417U (en) | 2021-02-09 | 2021-02-09 | Bone fracture plate for fixing posterior ankle fracture |
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2021
- 2021-02-09 CN CN202120361461.7U patent/CN214761417U/en active Active
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