CN220175216U - Novel tibia platform external rear side anatomical locking bone fracture plate - Google Patents
Novel tibia platform external rear side anatomical locking bone fracture plate Download PDFInfo
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- CN220175216U CN220175216U CN202222936740.9U CN202222936740U CN220175216U CN 220175216 U CN220175216 U CN 220175216U CN 202222936740 U CN202222936740 U CN 202222936740U CN 220175216 U CN220175216 U CN 220175216U
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- 208000010392 Bone Fractures Diseases 0.000 title claims abstract description 28
- 210000002303 tibia Anatomy 0.000 title claims description 13
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 33
- 238000005452 bending Methods 0.000 claims abstract description 11
- 230000001054 cortical effect Effects 0.000 claims description 8
- 230000000399 orthopedic effect Effects 0.000 abstract description 2
- 210000003484 anatomy Anatomy 0.000 abstract 1
- 206010017076 Fracture Diseases 0.000 description 14
- 230000000149 penetrating effect Effects 0.000 description 6
- 210000003275 diaphysis Anatomy 0.000 description 3
- 210000004872 soft tissue Anatomy 0.000 description 3
- 206010053206 Fracture displacement Diseases 0.000 description 1
- 208000002658 Intra-Articular Fractures Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000000629 knee joint Anatomy 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding 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 utility model discloses a novel tibial plateau outer rear side anatomy locking bone plate, which is an inverted L-shaped bone plate and comprises a proximal transverse arm and a distal longitudinal arm, wherein the distal longitudinal arm is wide at the upper part and narrow at the lower part and comprises a metaphyseal part and a tibial part, the proximal transverse arm is wide at the front part and narrow at the rear part, two rows of locking screw holes and two Ke-shaped pinholes are arranged on the proximal transverse arm, first pre-bending grooves are respectively arranged on two sides of a joint of the proximal transverse arm and the metaphyseal part, an elliptic common screw hole and two Ke-shaped pinholes are respectively arranged on the metaphyseal part, second pre-bending grooves are respectively arranged on two sides of a joint of the metaphyseal part and the tibial part, and a sliding screw hole and five 8-shaped holes are sequentially arranged on the tibial part from top to bottom. The bone fracture plate can be fixed to a posterolateral fracture block from the outside, can be used for fixing when the tibial plateau fracture affects the anterolateral and posterolateral aspects, provides more convenience for orthopedics doctors, and is suitable for the technical field of tibial plateau fracture internal fixation instruments.
Description
Technical Field
The utility model relates to the technical field of tibial plateau fracture internal fixation instruments, in particular to a novel tibial plateau external rear side anatomic locking bone plate.
Background
Tibial plateau fracture is various in types and complex in morphology. The posterior tibial plateau fracture refers to the fracture of 1/3 of the posterior 1/3 of the medial and lateral tibial plateau. Among all tibial plateau fractures, the cumulative fractures of the outer posterior plateau account for approximately 7%. The fracture at the outer rear side of the platform belongs to intra-articular fracture, when the fracture displacement is more than 2mm, surgical treatment is the preferred mode, and the aims of restoring the flatness of the joint surface of the platform and restoring the normal force line of the lower limb and the stability of the knee joint are fulfilled. Because the tibia plateau posterolateral fracture is shielded by the fibular bone, popliteal tendon and gastrocnemius medial head, the exposure, reduction and fixation in operation are difficult, and the current anterolateral locking bone plate cannot fix the posterolateral fracture block, therefore, for the posterolateral plateau fracture which can be reduced through an external approach, development of a bone plate which can be fixed to the external posterolateral side on the outside is urgently needed.
Disclosure of Invention
The utility model aims to provide a novel tibial plateau external rear side anatomic locking bone plate so as to solve the problems in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a novel shin bone platform outside rear side dissects locking bone plate, bone plate is "L" type, bone plate includes proximal end xarm and distal end trailing arm, distal end trailing arm upper width is narrow down, including the section of doing so and shin bone section of doing so, proximal end xarm front and back is narrow, is equipped with two rows of locking screw holes and two k's pinholes on it, proximal end xarm and the both sides of the section of doing so junction are equipped with first preflex groove respectively, it is equipped with an oval ordinary screw hole and two k's pinholes on the section of doing so, it is equipped with the second preflex groove respectively to do so the both sides of the section of doing so with shin bone section junction, shin bone section from the top down is equipped with a piece of slip screw hole and five 8 word holes in proper order.
Preferably, the bone fracture plate is subjected to round edge and round corner treatment, the radius of the round edge is equal to 0.3mm, and the radius of the round corner is equal to 2mm.
Preferably, the proximal bridge has a forward width of 15mm, the proximal bridge has a length of 40mm, the distal longitudinal arm has a lower width of 15mm, the metaphyseal slope has a length of 30mm, and the tibial metaphyseal segment has a length of 55mm.
Preferably, the hole spacing of the two rows of locking screw holes on the proximal cross arm is 4mm, the first row is sequentially arranged into five rows from front to back, the second row is sequentially arranged into four rows from front to back, the diameters of the first to three rows of locking screw holes of the first row are 3.5mm, the diameters of the fourth to five rows of locking screw holes are 2.7mm, the direction of the fifth screw of the first row of locking screw holes points to the outer rear cortical bone edge of the tibia platform, the diameters of the first to three rows of locking screw holes of the second row of locking screw holes are 3.5mm, the diameter of the fourth row of locking screw holes is 2.7mm, the fourth direction of the second row of locking screw holes points to the outer rear cortical bone edge of the tibia platform, and the diameter of the two k-pin holes (11) on the proximal cross arm (1) is 1.5mm.
Preferably, the minor axis of the oval common screw hole is 3.5mm, the minor axis of the sliding screw hole is 3.5mm, the diameter of the 8-shaped hole is 3.5mm, the hole spacing among the oval common screw hole, the sliding screw hole and the 8-shaped hole is 4mm, and the directions of the oval common screw hole, the sliding screw hole and the 8-shaped hole are all perpendicular to the plane.
The principle and beneficial effect of this technical scheme are: because the bone fracture plate is processed by round edge and round corner, soft tissues of affected parts are not easy to be damaged. When the tibia locking device is used, the proximal transverse arm covers the front outer side and part of the rear outer side of the outer side platform, the longitudinal arm is attached to the front outer side of the upper tibial segment, then a medical Kirschner wire is used for penetrating through the Kirschner wire holes of the transverse arm and the metaphyseal segment, the anatomical locking bone plate at the rear outer side of the tibia platform is temporarily fixed, a medical screw is used for penetrating through a sliding screw hole to enable the bone plate to be tightly attached to the bone surface, the screw is used for penetrating through an oval common screw hole, a locking screw hole and an 8-shaped hole, the distal longitudinal arm is fixed on the front outer side of the upper tibial segment, and the proximal transverse arm is fixed on the outer side platform. The provision of the first pre-bent groove and the second pre-bent groove may facilitate molding of the bone plate. The directions of the first row of the fifth locking screw holes and the second row of the fourth locking screw holes on the proximal cross arm are all directed to the cortical rim of the rear side of the tibial lateral platform, so the novel external rear side anatomical locking bone plate can be fixed to the rear lateral fracture block from the outer side, and can be used for fixing when the tibial lateral platform fracture involves the front lateral side and the rear lateral side.
Drawings
Fig. 1 is a schematic view of the overall structure of a novel tibial plateau external posterior anatomic locking bone plate according to an embodiment of the present utility model;
fig. 2 is a schematic view of a first pre-curved slot of a novel tibial plateau external posterior anatomic locking bone plate according to an embodiment of the present utility model;
the labels in the drawings of this specification include: 1. a proximal crossbar; 2. a distal trailing arm; 3. metaphyseal segments; 4. a tibial diaphysis segment; 5. a first pre-bending groove; 6. a second pre-bending groove; 7. locking the screw hole; 8. oval common screw holes; 9. sliding screw holes; 10. 8-shaped holes; 11. a k-wire pinhole.
Detailed Description
The utility model is described in further detail below with reference to the attached drawings and embodiments:
as shown in fig. 1 to 2, the novel tibial plateau outer rear side anatomical locking bone plate comprises a proximal transverse arm 1 and a distal longitudinal arm 2, wherein the distal longitudinal arm 2 comprises a metaphyseal segment 3 and a tibial diaphysis segment 4, the bone plate is subjected to round edge and round angle treatment, soft tissues of affected parts can be prevented from being damaged, the round edge and the like have a radius of 0.3mm, and the round angle and the like have a radius of 2mm. The proximal cross arm 1 covers the anterolateral side and part of the posterolateral side of the tibial lateral platform, the width of the front part of the proximal cross arm 1 is 15mm, and the length is 40mm; the distal longitudinal arm 2 is fixed on the anterior and lateral sides of the upper tibial segment, the width of the lower part of the distal longitudinal arm 2 is 15mm, the slope length of the metaphyseal segment 3 is 30mm, and the length of the tibial diaphysis segment 4 is 55mm. Two Ke's pinholes 11 are arranged on the near-end cross arm 1, and the diameter of each Ke's pinhole is 1.5mm; the proximal cross arm 1 is provided with two rows of locking screw holes 7 with the hole spacing of about 4mm, the first row is sequentially provided with five locking screw holes 7 from front to back, wherein the diameters of the first to third locking screw holes are 3.5mm, the diameters of the fourth to fifth locking screw holes are 2.7mm, and the direction of the fifth locking screw holes points to the cortical bone edge at the rear side of the tibial lateral platform; the second row is provided with four rows from front to back, wherein the diameters of the first row to the third row are 3.5mm, the diameter of the fourth row is 2.7mm, and the fourth row is directed to the cortical bone edge of the rear side of the tibia lateral platform. The two sides of the joint of the proximal transverse arm 1 and the metaphyseal segment 3 of the distal longitudinal arm 2 are respectively provided with a first pre-bending groove 5, the metaphyseal segment 3 is provided with an elliptic common screw hole 8 with a short shaft of 3.5mm and two k-type pinholes 11, the two sides of the joint of the metaphyseal segment 3 and the tibial segment 4 are respectively provided with a second pre-bending groove 6, the tibial segment 4 is sequentially provided with a sliding screw hole 9 with a short shaft of 3.5mm and five 8-shaped holes with a diameter of 3.5mm from top to bottom, and the 8-shaped holes 10 are the combination of a locking screw hole and a common screw hole. The hole spacing of the oval common screw hole 8, the sliding screw hole 9 and the 8-shaped hole 10 is 4mm, and the directions of the oval common screw hole 8, the sliding screw hole 9 and the 8-shaped hole 10 are perpendicular to the plane.
The specific implementation process is as follows:
when the bone fracture plate is used by orthopedics doctors, the bone fracture plate is arranged in a round-edge and round-corner mode, so that soft tissues of affected parts are not easy to damage. Firstly, the proximal transverse arm 1 is supported on the front outer side and part of the rear outer side of the outer side platform, the distal longitudinal arm 2 is attached on the front outer side of the upper tibial segment, then a medical Kirschner wire is used for penetrating through a Kirschner wire hole 11 of the transverse arm and the metaphyseal segment, the novel bone plate is temporarily fixed on the outer rear side of the outer side of the tibial platform, a medical screw is used for penetrating through a sliding screw hole 9 to tightly attach the bone plate to the bone surface, a medical screw hole is used for penetrating through an elliptic common screw hole 8, a locking screw hole 7 and a 8-shaped hole 10, the distal longitudinal arm 1 is fixed on the front outer side of the upper tibial segment, and the proximal transverse arm 2 is fixed on the outer side platform. The two sides of the joint of the proximal transverse arm 1 and the metaphyseal segment 3 of the distal longitudinal arm 2 are respectively provided with a first pre-bending groove 5, the two sides of the joint of the metaphyseal segment 3 and the tibial metaphyseal segment 4 are respectively provided with a second pre-bending groove 6, the bone fracture plate can be molded according to the needs in the operation, and the bone fracture plate can be molded more easily due to the arrangement of the pre-bending grooves. The directions of the first row of the fifth locking screw holes 7 and the second row of the fourth locking screw holes 7 on the proximal transverse arm 1 are all directed to the cortical rim of the rear side of the tibial lateral platform, so that the novel external rear side anatomical locking bone fracture plate can be fixed to the rear lateral fracture block from the outer side, and can be used for fixing when the tibial lateral platform fracture involves the front lateral side and the rear lateral side.
The foregoing is merely exemplary of the present utility model, and specific technical solutions and/or features that are well known in the art have not been described in detail herein. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present utility model, and these should also be regarded as the protection scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the practical applicability of the patent. The protection scope of the present utility model is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (5)
1. The utility model provides a novel tibia platform outside rear side dissects locking bone plate which characterized in that: the bone fracture plate is of an inverted L shape, the bone fracture plate comprises a proximal cross arm (1) and a distal longitudinal arm (2), the distal longitudinal arm (2) is wide at the upper part and narrow at the lower part and comprises a metaphyseal segment (3) and a tibial stem segment (4), the proximal cross arm (1) is wide at the front part and narrow at the rear part, two rows of locking screw holes (7) and two Ke-shi pinholes (11) are formed in the proximal cross arm (1), first pre-bending grooves (5) are formed in two sides of a joint of the proximal cross arm (1) and the metaphyseal segment (3) respectively, an elliptic common screw hole (8) and two Ke-shi pinholes (11) are formed in the metaphyseal segment (3), second pre-bending grooves (6) are formed in two sides of the joint of the metaphyseal segment (3) and the tibial stem segment (4) respectively, and a sliding screw hole (9) and five 8 word holes (10) are formed in sequence from top to bottom.
2. The novel tibial plateau posterior-lateral anatomic locking bone plate of claim 1, wherein: the bone fracture plate is subjected to round edge and round corner treatment, the equal radius of the round edge is 0.3mm, and the equal radius of the round corner is 2mm.
3. The novel tibial plateau posterior-lateral anatomic locking bone plate of claim 1, wherein: the width of the front part of the proximal cross arm (1) is 15mm, the length of the proximal cross arm (1) is 40mm, the width of the lower part of the distal longitudinal arm (2) is 15mm, the slope length of the metaphyseal segment (3) is 30mm, and the length of the tibial metaphyseal segment (4) is 55mm.
4. The novel tibial plateau posterior-lateral anatomic locking bone plate of claim 1, wherein: the distance between holes of two rows of locking screw holes (7) on the proximal cross arm (1) is 4mm, the first row is five from front to back, the second row is four from front to back, the diameters of the first row of locking screw holes (7) from the first row to the third row are 3.5mm, the diameters of the fourth row to the fifth row of locking screw holes (7) are 2.7mm, the direction of the fifth screw of the first row of locking screw holes (7) points to the cortical bone edge at the outer rear side of the tibial plateau, the diameters of the first row of locking screw holes (7) from the first row to the third row of locking screw holes (7) are 3.5mm, the diameter of the fourth row of locking screw holes (7) points to the cortical bone edge at the outer rear side of the tibial plateau, and the diameters of two Ke's (11) on the proximal cross arm (1) are 1.5mm.
5. The novel tibial plateau posterior-lateral anatomic locking bone plate of claim 1, wherein: the short axis of the oval common screw hole (8) is 3.5mm, the short axis of the sliding screw hole (9) is 3.5mm, the diameter of the 8-shaped hole (10) is 3.5mm, the hole spacing of the oval common screw hole (8), the sliding screw hole (9) and the 8-shaped hole (10) is 4mm, and the directions of the oval common screw hole (8), the sliding screw hole (9) and the 8-shaped hole (10) are all perpendicular to the plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222936740.9U CN220175216U (en) | 2022-11-04 | 2022-11-04 | Novel tibia platform external rear side anatomical locking bone fracture plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222936740.9U CN220175216U (en) | 2022-11-04 | 2022-11-04 | Novel tibia platform external rear side anatomical locking bone fracture plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220175216U true CN220175216U (en) | 2023-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222936740.9U Active CN220175216U (en) | 2022-11-04 | 2022-11-04 | Novel tibia platform external rear side anatomical locking bone fracture plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220175216U (en) |
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- 2022-11-04 CN CN202222936740.9U patent/CN220175216U/en active Active
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