CN114557757A - Novel structure titanium plate of tibial plateau posterior column fracture - Google Patents
Novel structure titanium plate of tibial plateau posterior column fracture Download PDFInfo
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- CN114557757A CN114557757A CN202210073569.5A CN202210073569A CN114557757A CN 114557757 A CN114557757 A CN 114557757A CN 202210073569 A CN202210073569 A CN 202210073569A CN 114557757 A CN114557757 A CN 114557757A
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- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 30
- 239000010936 titanium Substances 0.000 title claims abstract description 30
- 210000003484 anatomy Anatomy 0.000 abstract description 11
- 210000002303 tibia Anatomy 0.000 abstract description 6
- 208000010392 Bone Fractures Diseases 0.000 description 23
- 210000000988 bone and bone Anatomy 0.000 description 7
- 210000005036 nerve Anatomy 0.000 description 7
- 210000004204 blood vessel Anatomy 0.000 description 6
- 210000001698 popliteal fossa Anatomy 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 230000002980 postoperative effect Effects 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 210000001519 tissue Anatomy 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 210000003275 diaphysis Anatomy 0.000 description 2
- 210000000629 knee joint Anatomy 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000004345 peroneal nerve Anatomy 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 210000002972 tibial nerve Anatomy 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 208000002658 Intra-Articular Fractures Diseases 0.000 description 1
- 208000016593 Knee injury Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 206010048873 Traumatic arthritis Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 210000001264 anterior cruciate ligament Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 210000004439 collateral ligament Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 210000003195 fascia Anatomy 0.000 description 1
- 210000002082 fibula Anatomy 0.000 description 1
- 230000000642 iatrogenic effect Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 210000001699 lower leg Anatomy 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000005499 meniscus Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000003387 muscular Effects 0.000 description 1
- 210000003137 popliteal artery Anatomy 0.000 description 1
- 210000002967 posterior cruciate ligament Anatomy 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8052—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded
- A61B17/8057—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded the interlocking form comprising a thread
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8061—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates specially adapted for particular bones
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- Orthopedic Medicine & Surgery (AREA)
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Abstract
The invention discloses a novel structure titanium plate for tibial plateau posterior column fracture, and relates to the technical field of medical instruments; a novel structure titanium plate for a tibial plateau posterior column fracture is characterized in that a curve-shaped transverse short plate, a long vertical plate and a torsion connecting plate are arranged, so that the novel structure titanium plate is attached to an anatomical structure at a joint of an inner condyle and an outer condyle of a human tibia and a backbone, an inclined left hole is formed in the transverse short plate, so that screws can be conveniently placed in the novel structure titanium plate, the screws can be conveniently guided by placing the screws in the novel structure titanium plate, a corresponding left cushion seat is arranged in the left hole, a corresponding right cushion seat is arranged in the right hole, the head of the screws is supported and matched, the stability of the screws is improved, the head of the screws is prevented from being left at the outer side of the novel structure titanium plate through matching of a middle step surface and a hole step surface with the head of the screws, a sharp fulcrum is formed, connected large holes and small holes are arranged to adapt to different screws, and the joint of the long vertical plate and the short transverse plate is not provided with through holes, so that the structural strength is enhanced.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a novel-structure titanium plate for tibial plateau posterior column fracture.
Background
The tibial plateau fracture is one of common knee injuries in trauma, has higher treatment requirements due to the fact that the tibial plateau fracture is related to intra-articular fracture, aims of treatment are to smooth the joint surface, good joint stability and normal lower limb force line, recover the activity range of the knee joint and avoid secondary traumatic arthritis;
the posterior medial inverted L-shaped approach is the most reasonable approach for fracture of the posterior column of the tibial plateau at present, draws nerves and blood vessels, protects the nerves and the blood vessels, works in the deep parts of the nerves and the blood vessels, can be taken out in the later stage of an operation, has the advantages of small damage, safety, full exposure and avoidance of important anatomical structures, and can complete the operation of fracture of the posterior medial and posterior lateral sides through one incision; if the operation is performed from the posterolateral side, the fibula needs to be cut off, the side injury is increased, the iatrogenic fracture is caused, the visual field is limited in the operation due to the physiological anatomical structures, the lateral common peroneal nerve, the middle blood vessel and the tibial nerve, the operation injury is too large after the second extraction, the joint replacement is blocked by the steel plate, and the operation is not suitable for the first-time treatment of young patients.
In the anatomical structure: anterior and posterior cruciate ligaments, collateral ligaments, meniscus, muscle group and the like maintain the stability of the inner, outer, front and back sides of the knee joint together; the popliteal artery, the tibial nerve and the common peroneal nerve pass through; the intertragic membrane of the lower leg, the muscular space, and the fascia are thick and solid.
To sum up, the following technical problems exist in the current posterior medial inverted L access surgical procedure: 1) the existing embedded supporting plate has similar shape structure and anatomical structure characteristics of human tibia bone, but a gap still exists between the inner side surface of the supporting plate and the anatomical structure of human tibia bone, particularly because the supporting plate is obliquely arranged between the inverted L-shaped supporting plates, because the supporting plate is in an arc shape and connects the upper part and the lower part of the supporting plate, the supporting plate is sunken between the inner condyle and the backbone, the supporting plate is not jointed with the backbone, only the transverse plate which is arranged in an arc shape is arranged on the supporting plate, the sunken area of the rear intercondylar area between the inner condyle and the outer condyle is not jointed, the inner condyle is in an inverted circular truncated cone shape, the oblique inclination of the inner condyle and the backbone is different, the supporting plate which is inclined along the backbone cannot be jointed with the inner condyle, so that the jointing is not tight, the adjustment is needed during the operation, the operation process is influenced, and the postoperative support effect is poor because of the jointing is not good; 2) the nail can not be vertically inserted from the back inner side of the access, the lift access is close to the back outer side, the existing supporting plate is provided with a through hole which is vertical to the surface of the supporting plate, the inserted nail is not guided and supported, the nail inserting direction at the back outer side is deviated, the nail inserting position is not ideal, the fixing of the supporting plate and the skeleton is unstable, the thickness of the supporting plate is in an arc shape by being attached to the bone, the thickness of the supporting plate can be made as small as possible in order to avoid forming abrasion thickness to the tissue, and when the axis of the through hole is not vertical, the locking nail in medical treatment and the through hole of the supporting plate can not be matched through threads; 3) as the fracture line is pressurized in the operation, most of the through holes arranged on the supporting plate are locking holes, and no pressurizing hole matched with the pressurizing nail exists, the fracture line can not be repaired in the operation process; 4) because the blood vessel nerve at the popliteal fossa is abundant, after the screw fixes the supporting plate, the head of the screw is left at the outer side of the supporting plate to form a sharp fulcrum, so that the blood vessel nerve at the popliteal fossa is pressed, the blood flow at the popliteal fossa is not smooth, and the postoperative rehabilitation of a patient is influenced; 5) the through hole that current backup pad set up in falling "L" corner not only because the position of adjacent screw does not have the space to go into the nail in clinical treatment, belongs to unnecessary technology preparation, simultaneously because unnecessary through hole department does not have corresponding screw fixation, influences the structural rigidity of tibial plateau postcolumnum fracture titanium board.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a novel structure titanium plate for tibial plateau posterior column fracture.
In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:
a novel structure titanium plate for tibial plateau posterior column fracture comprises a long vertical plate, a transverse short plate and a torsion connecting plate, wherein the vertical direction of the rear view of the long vertical plate comprises A, B, C and D four arc sections, the A arc section, the B arc section and the C arc section account for 8% -12% of the total length of the long vertical plate, the D arc section accounts for 64% -76% of the total length of the long vertical plate, the radius length of the A arc section is in the range of 100 plus 120mm, the radius length of the B arc section is in the range of 15-25mm, the radius length of the C arc section is in the range of 40-50mm, the radius length of the D arc section is in the range of 135 plus 145mm, the centers of the C arc section and the D arc section are on the same side of the long vertical plate, the centers of the A arc section and the B arc section are on the other side of the long vertical plate and are attached to the inner side of the backbone with sides with different slopes;
the vertical direction on the right view of the long vertical plate consists of E, F sections and G sections, wherein the E arc section accounts for 8-10% of the total length of the long vertical plate, the F arc section accounts for 10-12% of the total length of the long vertical plate, the G section is a vertical section, the G section accounts for 82-78% of the total length of the long vertical plate, the radius length of the E arc section is in the range of 60-65mm, the radius length of the F arc section is in the range of 80-85mm, the length of the G section is in the range of 90-100mm, the centers of the E arc section and the F arc section are arranged on two sides of the long vertical plate, so that the long vertical plate is connected with the transverse short plate and is attached to the side edges of the inner condyle and the backbone with different inclinations;
the transverse short plate comprises H, I, J and K four arc sections in the top view direction, wherein the H arc section accounts for 15-20% of the transverse short plate, the I arc section accounts for 5-10% of the transverse short plate, the J arc section accounts for 25-30% of the transverse short plate, the K arc section accounts for 35-40% of the transverse short plate, the radius length of the H arc section is within the range of 20-25mm, the radius length of the J arc section is within the range of 135 plus 140mm within the range of 25-30mm, the radius length of the K arc section is within the range of 25-30mm, the centers of the H arc section, the I arc section and the J arc section are at one side of the transverse short plate, and the center of the K arc section is at the other side of the transverse short plate and is attached to a concave region of a rear intercondylar region between the inner condyle and the outer condyle;
the lower side edge of the torsion connecting plate in the bottom view direction is composed of L, M, N, O and P sections, the L arc section accounts for 8-10% of the torsion connecting plate, the M arc section accounts for 35-40% of the torsion connecting plate, the N arc section accounts for 20-25% of the torsion connecting plate, the O arc section accounts for 8-10% of the torsion connecting plate, the P section is a vertical section, the P section accounts for 10-15% of the torsion connecting plate, the L arc section has a radius length within the range of 5-10mm, the M arc section has a radius length within the range of 15-20mm, the N arc section has a radius length within the range of 55-60mm, the O arc section has a radius within the range of 5-10mm, the P section has a length within the range of 3-5mm, the circle centers of the L arc section and the M arc section are arranged on one side of the torsion connecting plate, and the circle centers of the N arc section and the O arc section are arranged on the other side of the torsion connecting plate, the P section extends from the O arc section and is fixedly connected with the transverse short plate, the upper side edge of the torsion connecting plate is fixedly connected with the long vertical plate and the transverse short plate in a straight line and is jointed with the slope transition from the backbone to the medial condyle;
the middle hole is axially parallel to the overall sagittal plane of the screw, the middle step plane is arranged in the middle of the middle hole and matched with the head of the screw, the left side of the middle hole is provided with a plurality of left side holes, the left side hole close to the middle hole is axially inclined 40-60 degrees to the left side of the overall sagittal plane of the screw, the left side holes far away from the middle hole are axially parallel to the left side hole close to the middle hole, the left side of the left side hole is fixedly connected with a smooth left cushion seat, one side of the left cushion seat close to the corresponding left side hole is an inclined plane, and the left cushion seat is matched with the head of the screw to form a gentle inclined plane;
the right side of the middle hole is provided with a right side hole, the right side hole is axially parallel to the overall sagittal plane of the invention, the joint of the long vertical plate and the transverse short plate is not provided with the right side hole, the right side of the right side hole is fixedly connected with a right side cushion seat, one side of the right side cushion seat close to the corresponding right side hole is an inclined plane, and a gap between the head of the support screw of the right side cushion seat and the transverse short plate forms a gentle inclined plane;
the long vertical plate is provided with a plurality of small holes, one side of each small hole is provided with a large hole, the small holes are communicated with the large holes, hole step surfaces are arranged between the small holes and the large holes and matched with the head of a screw to be suitable for various screws, through holes are not formed in the joints of the long vertical plate and the short transverse plate, the small holes are locking holes, and the large holes are pressurizing holes.
Furthermore, the number of the left side holes is three, and the distance between the adjacent holes of the left side holes and the middle holes is consistent, so that the stress on the bone fixation is uniform.
Furthermore, the number of the right side holes is two, and the distance between the adjacent holes of the right side hole and the middle hole is consistent, so that the stress on the bone fixation is uniform.
Furthermore, the number of the small holes is eleven, and the distances between the adjacent small holes are consistent, so that the stress on bone fixation is uniform.
The invention has the beneficial effects that:
a novel structure titanium plate for a tibial plateau posterior column fracture is characterized in that a curve-shaped transverse short plate, a long vertical plate and a torsion connecting plate are arranged, so that the novel structure titanium plate is attached to an anatomical structure at a joint of an inner condyle and an outer condyle of a human tibia and a backbone, an inclined left hole is formed in the transverse short plate, so that screws can be conveniently placed in the novel structure titanium plate, the screws can be conveniently guided by placing the screws in the novel structure titanium plate, a corresponding left cushion seat is arranged in the left hole, a corresponding right cushion seat is arranged in the right hole, the head of the screws is supported and matched, the stability of the screws is improved, the head of the screws is prevented from being left at the outer side of the novel structure titanium plate through matching of a middle step surface and a hole step surface with the head of the screws, a sharp fulcrum is formed, connected large holes and small holes are arranged to adapt to different screws, and the joint of the long vertical plate and the short transverse plate is not provided with through holes, so that the structural strength is enhanced.
The invention relates to a curved torsion connecting plate which is formed by a plurality of sections of arcs with circle centers distributed on two sides of the torsion connecting plate, a long vertical plate and a transverse short plate are obliquely supported, the change of different inclinations between an inner condyle and a backbone is adhered, the force of one end of the transverse short plate far away from the long vertical plate is transmitted to the long vertical plate to form a triangle with stable structure, the triangle is more stable for supporting the back and the outer side, the curved transverse short plate which is formed by a plurality of sections of arcs with circle centers distributed on two sides of the transverse short plate is arranged, the concave area of the back intercondylar area between the inner condyle and the outer condyle is adhered while the inner condyle and the outer condyle are adhered, the curved long section which is formed by a plurality of sections of arcs with circle centers distributed on two sides of the long vertical plate is arranged, the backbone is adhered while the condyle is adhered, the change of different inclinations of the medial condyle is adapted, so that the main body shape structure of the invention is adhered to the inner side of the tibia of the human body through the curve instead of the arc, Anatomy at the junction of the lateral condyle and the diaphysis.
The invention meets the entering space of the oblique nail when entering the way from the back inner side in the operation by arranging the left hole with the oblique angle at the left side of the transverse short plate, the inclined left hole guides the inserted nail, so that the blocking of the inclined inserted nail by the through hole which is parallel to the overall sagittal plane of the invention or vertical to the surface of the transverse short plate is avoided, the ideal direction and position of the inserted nail are ensured, corresponding left and right cushion seats are arranged on the left and right holes corresponding to the oblique nails on the surface of the transverse short plate, the invention can stably fix the bone and form enough inner side surface threads through the left side cushion seat and the right side cushion seat, the locking screw is matched with the locking screw stably, and the screws are fixed to bones more stably through the left hole and the right hole which form angles with each other.
The small hole of the invention is matched with the locking nail, and the large hole beside the small hole is matched with the pressurizing nail, thereby avoiding the problem that the fracture line repair can not be carried out through the locking hole only by the locking hole on the existing supporting plate, and increasing the application range of the operation work.
The invention is provided with a left cushion seat which is inclined at one side close to the corresponding left hole, a right cushion seat which is inclined at one side close to the corresponding right hole, and a middle hole, wherein hole step surfaces are arranged at the positions of a large hole and a small hole, so that the head of a screw is not protruded suddenly at a long vertical plate and a short transverse plate, the compression of the head of the screw at a popliteal fossa on nerve vessels is avoided, the invention does not influence the surrounding tissues after the operation of a patient, and the recovery of the patient is promoted.
The invention does not arrange a through hole at the joint of the long vertical plate and the short transverse plate, avoids the conflict between the nail entering at the corner and the adjacent screw in clinical treatment, can reduce preparation work, is integrated at the joint of the long vertical plate and the short transverse plate, improves the structural rigidity of the invention and prolongs the service life of the invention.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic overall structural view of a novel structural titanium plate for tibial plateau posterior column fracture according to an embodiment of the present invention;
FIG. 2 is a schematic view of the structural connection of the posterior side of the titanium plate of the tibial plateau posterior column fracture new structure according to the embodiment of the present invention;
fig. 3 is a schematic view of a rear structure of a long riser according to an embodiment of the invention;
FIG. 4 is a right side view of a titanium plate with a novel tibial plateau posterior column fracture structure according to an embodiment of the present invention;
FIG. 5 is a schematic view of the structure of the lower side of a titanium plate with a novel structure of tibial plateau posterior column fracture according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of the upper side of a titanium plate with a novel structure for tibial plateau posterior column fracture according to an embodiment of the present invention;
FIG. 7 is a schematic structural view of the upper side of the transverse short plate according to the embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a transverse short plate according to an embodiment of the present invention;
fig. 9 is a schematic structural view of a long riser according to an embodiment of the invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1-long vertical plate, 101-big hole, 102-small hole, 103-hole step surface, 2-transverse short plate, 201-middle hole, 2011-middle step surface, 202-left hole, 203-left cushion seat, 204-right hole, 205-right cushion seat and 3-torsion connecting plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1-7
The invention relates to a novel structure titanium plate for tibial plateau posterior column fracture, which comprises a long vertical plate (1), a transverse short plate (2) and a torsion connecting plate (3), wherein the vertical direction of the rear view of the long vertical plate (1) consists of A, B, C and D four arc sections, the A arc section, the B arc section and the C arc section account for 8-12% of the total length of the long vertical plate (1), the D arc section accounts for 64-76% of the total length of the long vertical plate (1), the radius length of the A arc section is within the range of 100 plus 120mm, the radius length of the B arc section is within the range of 15-25mm, the radius length of the C arc section is within the range of 40-50mm, the radius length of the D arc section is within the range of 135 plus 145mm, the circle centers of the C arc section and the D arc section are on the same side of the long vertical plate (1), the circle centers of the A arc section and the B arc section are on the other side of the long vertical plate (1), the side edges with different slopes are attached to the medial condyle and the diaphysis;
the vertical direction of the right view of the long vertical plate (1) consists of E, F and G three sections, wherein an E arc section accounts for 8-10% of the total length of the long vertical plate (1), an F arc section accounts for 10-12% of the total length of the long vertical plate (1), a G section is a vertical section, a G section accounts for 82-78% of the total length of the long vertical plate (1), the radius length of the E arc section is in the range of 60-65mm, the radius length of the F arc section is in the range of 80-85mm, the length of the G section is in the range of 90-100mm, the circle centers of the E arc section and the F arc section are arranged at two sides of the long vertical plate (1), so that the long vertical plate (1) is connected with the transverse short plate (2) and is attached to the lateral sides of the medial condyle and the backbone with different slopes;
the transverse short plate (2) consists of H, I, J and K four arc sections in the top view direction, the H arc section accounts for 15-20% of the transverse short plate (2), the I arc section accounts for 5-10% of the transverse short plate (2), the J arc section accounts for 25-30% of the transverse short plate (2), the K arc section accounts for 35-40% of the transverse short plate (2), the radius length of the H arc section is within the range of 20-25mm, the radius length of the I arc section is within the range of 25-30mm, the radius length of the J arc section is within the range of 135 plus 140mm, the radius length of the K arc section is within the range of 25-30mm, the centers of the H arc section, the I arc section and the J arc section are at one side of the transverse short plate (2), the center of the K arc section is at the other side of the transverse short plate (2), and is attached to a rear intercondylar depressed area between the inner side and the outer side;
the lower side edge of the torsion connecting plate (3) in the bottom view direction is composed of L, M, N, O and P four sections, the L arc section accounts for 8-10% of the torsion connecting plate (3), the M arc section accounts for 35-40% of the torsion connecting plate (3), the N arc section accounts for 20-25% of the torsion connecting plate (3), the O arc section accounts for 8-10% of the torsion connecting plate (3), the P section is a vertical section, the P section accounts for 10-15% of the torsion connecting plate (3), the radius length of the L arc section is within the range of 5-10mm, the radius length of the M arc section is within the range of 15-20mm, the radius length of the N arc section is within the range of 55-60mm, the O arc section is within the range of 5-10mm, the length of the P section is within the range of 3-5mm, and the circle centers of the L arc section and the M arc section are positioned on one side of the torsion connecting plate (3), the circle centers of the N arc section and the O arc section are arranged on the other side of the torsion connecting plate (3), the P section extends from the O arc section and is fixedly connected with the transverse short plate (2), the upper side edge of the torsion connecting plate (3) is fixedly connected with the long vertical plate (1) and the transverse short plate (2) in a straight line manner, and the inclination from the backbone to the inner side condyle is in fit transition.
The invention relates to a curved bone fracture plate, which is characterized in that a curved torsion connecting plate consisting of a plurality of sections of arc sections with circle centers distributed at two sides of the torsion connecting plate is arranged, the change of different slopes between an inner condyle and a backbone is adhered to the inclined torsion connecting plate while the long vertical plate and a transverse short plate are supported in an inclined way, a curved transverse short plate consisting of a plurality of sections of arc sections with circle centers distributed at two sides of the transverse short plate is arranged, a depressed area of a rear intercondylar area between the inner condyle and the outer condyle is adhered to the inner condyle and the outer condyle while the inner condyle and the outer condyle are adhered to the inclined area, a curved long vertical plate consisting of a plurality of sections of arc sections with circle centers distributed at two sides of the long vertical plate is arranged, and the main shape structure of the invention is adhered to the anatomical structures of the inner condyle, the outer condyle and the backbone of the human body through curves instead of arcs.
Example 2
As shown in fig. 8
The transverse short plate (2) is provided with a plurality of holes, the middle of the transverse short plate (2) is provided with a middle hole (201), the middle hole (201) is axially parallel to the overall sagittal plane of the invention, the middle of the middle hole (201) is provided with a middle step plane (2011) matched with the head of a screw, the left side of the middle hole (201) is provided with a plurality of left side holes (202), the left side hole (202) close to the middle hole (201) is axially inclined to the left side of the overall sagittal plane of the invention by 40-60 degrees, the other left side holes (202) far away from the middle hole (201) are axially parallel to the left side hole (202) close to the middle hole (201), the left side of the left side hole (202) is fixedly connected with a smooth left side cushion seat (203), one side of the left side cushion seat (203) close to the corresponding left side hole (202) is an inclined plane, and the left side cushion seat (203) is matched with the head of the screw to form a gentle inclined plane;
the right side of the middle hole (201) is provided with a right hole (204), the right hole (204) is axially parallel to the overall sagittal plane of the invention, the right hole (204) is not arranged at the joint of the long vertical plate (1) and the transverse short plate (2), the right side of the right hole (204) is fixedly connected with a right cushion seat (205), one side of the right cushion seat (205) close to the corresponding right hole (204) is an inclined plane, so that a gap between the head of a supporting screw of the right cushion seat (205) and the transverse short plate (2) forms a gentle inclined plane.
The left side hole with an inclined angle is arranged on the left side of the transverse short plate, so that when the nail enters a path from the back inner side in an operation, the entering space of the inclined nail is met, the nail is guided through the inclined left side hole, the blocking of the inclined nail entering by a through hole parallel to the overall sagittal plane or vertical to the surface of the transverse short plate is avoided, the ideal direction and position of the nail entering are ensured, the corresponding left side cushion seat and right side cushion seat are arranged on the left side hole and the right side hole relative to the inclined nail entering of the surface of the transverse short plate, and the head part of the screw which is inclined and is left on the outer side of the transverse short plate is supported through the left side cushion seat and the right side cushion seat, so that the implantation of the screw is stable.
Example 3
As shown in fig. 9
The long vertical plate (1) is provided with a plurality of small holes (102), one side of each small hole (102) is provided with a punch hole, the small holes (102) are communicated with the large holes (101), the small holes are locking holes, and the large holes are pressurizing holes.
The small hole of the invention is matched with the locking nail, and the large hole beside the small hole is matched with the pressurizing nail, thus avoiding the problem that the fracture line repair can not be carried out through the locking hole because the existing supporting plate only has the locking hole, increasing the application range of the operation work, leading the bone repair of the patient to be tight and accelerating the recovery.
Example 4
As shown in fig. 8 and 9
It has well step face (2011) to open in the middle of mesopore (201), cooperates with the screw head, left side base (203) is close to corresponding left side hole (202) one side and is the inclined plane, makes left side base (203) and screw head cooperation form gentle inclined plane, right side base (205) are close to corresponding right side hole (204) one side and are the inclined plane, make right side base (205) support screw head and violently form gentle inclined plane in the space between short plate (2), all be equipped with hole step face (103) in the middle of aperture (102) and aperture (102), cooperate with the screw head, be fit for all kinds of screws.
The left cushion seat is arranged to be an inclined surface at one side close to the corresponding left hole, the right cushion seat is arranged to be an inclined surface at one side close to the corresponding right hole, the middle hole is provided with a middle step surface, and hole step surfaces are arranged at the positions of the large hole and the small hole, so that the head of the screw does not protrude suddenly from the long vertical plate and the short transverse plate, the compression of the head of the screw on nerve vessels at the popliteal fossa is avoided, the postoperative device does not affect the surrounding tissues of a patient, and the recovery of the patient is promoted.
Example 4
As shown in fig. 4
And no through hole is arranged at the joint of the long vertical plate (1) and the short transverse plate.
The joint of the long vertical plate and the short transverse plate is not provided with a through hole, so that the collision between a nail at a corner and an adjacent screw is avoided in clinical treatment, the preparation work can be reduced, the joint of the long vertical plate and the short transverse plate is integrated, the structural rigidity of the invention is improved, and the service life of the invention is prolonged.
In summary, the novel structure titanium plate for tibial plateau posterior column fracture is provided with the curved transverse short plate, the long vertical plate and the torsion connecting plate, so that the novel structure titanium plate is attached to an anatomical structure at the joint of the medial condyle and the lateral condyle of a human tibia and a backbone, the transverse short plate is provided with the inclined left hole, so that screws can be conveniently placed in the anatomical structure and can guide the placement of the screws, the left hole is provided with the corresponding left cushion, the right hole is provided with the corresponding right cushion, the head of the screw is supported and matched, the stability of the screws is improved, the head of the screw is prevented from being left at the outer side of the novel structure titanium plate by matching the middle step surface and the hole step surface with the head of the screw, a sharp fulcrum is prevented from being formed, the connected large hole and small hole are arranged to adapt to different screws, and the connecting part of the long vertical plate and the short transverse plate is not provided with the through hole, so that the structural strength is enhanced.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (4)
1. The utility model provides a novel structure titanium board of tibial plateau back post fracture which characterized in that: the vertical connecting plate comprises a long vertical plate, a transverse short plate and a torsion connecting plate, wherein the rear view of the long vertical plate is composed of A, B, C and D four arc sections in the vertical direction, the A arc section, the B arc section and the C arc section account for 8-12% of the total length of the long vertical plate, the D arc section accounts for 64-76% of the total length of the long vertical plate, the radius length of the A arc section is in the range of 100-120mm, the radius length of the B arc section is in the range of 15-25mm, the radius length of the C arc section is in the range of 40-50mm, the radius length of the D arc section is in the range of 135-145mm, the centers of the C arc section and the D arc section are on the same side of the long vertical plate, and the centers of the A arc section and the B arc section are on the other side of the long vertical plate;
the vertical direction of the right view of the long vertical plate consists of E, F sections and G sections, the E arc section accounts for 8-10% of the total length of the long vertical plate, the F arc section accounts for 10-12% of the total length of the long vertical plate, the G section is a vertical section, the G section accounts for 82-78% of the total length of the long vertical plate, the radius length of the E arc section is within the range of 60-65mm, the radius length of the F arc section is within the range of 80-85mm, the length of the G section is within the range of 90-100mm, and the circle centers of the E arc section and the F arc section are arranged on two sides of the long vertical plate;
the transverse short plate comprises H, I, J and K four arc sections in the top view direction, wherein the H arc section accounts for 15-20% of the transverse short plate, the I arc section accounts for 5-10% of the transverse short plate, the J arc section accounts for 25-30% of the transverse short plate, the K arc section accounts for 35-40% of the transverse short plate, the radius length of the H arc section is within the range of 20-25mm, the radius length of the J arc section is within the range of 135-140mm within the range of 25-30mm, the radius length of the K arc section is within the range of 25-30mm, the centers of the H arc section, the I arc section and the J arc section are on one side of the transverse short plate, and the center of the K arc section is on the other side of the transverse short plate;
the lower side edge of the torsion connecting plate in the bottom view direction consists of L, M, N, O and P, the L arc section accounts for 8-10% of the torsion connecting plate, the M arc section accounts for 35-40% of the torsion connecting plate, the N arc section accounts for 20-25% of the torsion connecting plate, the O arc section accounts for 8-10% of the torsion connecting plate, the P section is a vertical section, the P section accounts for 10-15% of the torsion connecting plate, the radius length of the L arc section is within the range of 5-10mm, the radius length of the M arc section is within the range of 15-20mm, the radius length of the N arc section is within the range of 55-60mm, the O arc section is within the range of 5-10mm, the length of the P section is within the range of 3-5mm, the circle centers of the L arc section and the M arc section are at one side of the torsion connecting plate, the circle centers of the N arc section and the O arc section are at the other side of the torsion connecting plate, the P section extends from the O arc section and is fixedly connected with the transverse short plate, and the upper side edge of the torsion connecting plate is fixedly connected with the long vertical plate and the transverse short plate in a straight line;
the transverse short plate is provided with a plurality of holes, the middle of the transverse short plate is provided with a middle hole, the middle hole is axially parallel to the overall sagittal plane of the invention, the middle of the middle hole is provided with a middle step plane, the left side of the middle hole is provided with a plurality of left side holes, the left side hole close to the middle hole is axially inclined to the left side of the overall sagittal plane of the invention by 40-60 degrees, the rest left side holes far away from the middle hole are axially parallel to the left side hole close to the middle hole, the left side of the left side hole is fixedly connected with a smooth left side cushion seat, and one side of the left side cushion seat close to the corresponding left side hole is an inclined plane;
the right side of the middle hole is provided with a right side hole, the right side hole is axially parallel to the overall sagittal plane of the invention, the joint of the long vertical plate and the transverse short plate is not provided with the right side hole, the right side of the right side hole is fixedly connected with a right side cushion seat, and one side of the right side cushion seat close to the corresponding right side hole is an inclined plane;
the long vertical plate is provided with a plurality of small holes, one side of each small hole is provided with a large hole, the small holes are communicated with the large holes, hole step surfaces are arranged between the small holes and the large holes, through holes are not formed in the joints of the long vertical plate and the short transverse plates, the small holes are locking holes, and the large holes are pressurizing holes.
2. The new structural titanium plate of tibial plateau posterior column fracture of claim 1, wherein: the number of the left side holes is three, and the distance between the left side holes and the adjacent holes of the middle hole is consistent.
3. The new structural titanium plate of tibial plateau posterior column fracture of claim 1, wherein: the number of the right side holes is two, and the distance between the right side holes and the adjacent holes of the middle hole is consistent.
4. The new structural titanium plate of tibial plateau posterior column fracture of claim 1, wherein: the number of the small holes is eleven, and the distance between the adjacent small holes is consistent.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210073569.5A CN114557757A (en) | 2022-01-21 | 2022-01-21 | Novel structure titanium plate of tibial plateau posterior column fracture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210073569.5A CN114557757A (en) | 2022-01-21 | 2022-01-21 | Novel structure titanium plate of tibial plateau posterior column fracture |
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| US20150327899A1 (en) * | 2014-05-15 | 2015-11-19 | Osteomed Llc | Ankle Tibia Plates |
| US20170209194A1 (en) * | 2016-01-21 | 2017-07-27 | Biomet Manufacturing, Llc | Anatomic plates for medial proximal tibia |
| US20180049785A1 (en) * | 2016-08-17 | 2018-02-22 | Globus Medical, Inc. | Stabilization systems |
| WO2019079856A1 (en) * | 2017-10-25 | 2019-05-02 | Monash University | Implant for tibial fractures |
| CN209032595U (en) * | 2017-08-17 | 2019-06-28 | 杨小华 | Tibial plateau rear pillar fracture titanium plate |
| CN111093541A (en) * | 2017-07-17 | 2020-05-01 | 梅约医学教育与研究基金会 | Optimization method for orthopedic component design |
| CN111658115A (en) * | 2020-05-27 | 2020-09-15 | 常州华森医疗器械有限公司 | Proximal tibia posterior lateral locking plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150327899A1 (en) * | 2014-05-15 | 2015-11-19 | Osteomed Llc | Ankle Tibia Plates |
| US20170209194A1 (en) * | 2016-01-21 | 2017-07-27 | Biomet Manufacturing, Llc | Anatomic plates for medial proximal tibia |
| US20180049785A1 (en) * | 2016-08-17 | 2018-02-22 | Globus Medical, Inc. | Stabilization systems |
| CN111093541A (en) * | 2017-07-17 | 2020-05-01 | 梅约医学教育与研究基金会 | Optimization method for orthopedic component design |
| CN209032595U (en) * | 2017-08-17 | 2019-06-28 | 杨小华 | Tibial plateau rear pillar fracture titanium plate |
| WO2019079856A1 (en) * | 2017-10-25 | 2019-05-02 | Monash University | Implant for tibial fractures |
| CN111658115A (en) * | 2020-05-27 | 2020-09-15 | 常州华森医疗器械有限公司 | Proximal tibia posterior lateral locking plate |
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