CN110584762B - Osteotomy reduction device for femur and tibia - Google Patents
Osteotomy reduction device for femur and tibia Download PDFInfo
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- CN110584762B CN110584762B CN201810603501.7A CN201810603501A CN110584762B CN 110584762 B CN110584762 B CN 110584762B CN 201810603501 A CN201810603501 A CN 201810603501A CN 110584762 B CN110584762 B CN 110584762B
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- 210000000689 upper leg Anatomy 0.000 title claims abstract description 33
- 210000002303 tibia Anatomy 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 description 15
- 210000000988 bone and bone Anatomy 0.000 description 8
- 210000003141 lower extremity Anatomy 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000002271 resection Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 210000002391 femur head Anatomy 0.000 description 3
- 210000005056 cell body Anatomy 0.000 description 2
- 206010010356 Congenital anomaly Diseases 0.000 description 1
- 241000469816 Varus Species 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000003090 exacerbative effect Effects 0.000 description 1
- 230000002068 genetic effect Effects 0.000 description 1
- 210000000528 lesser trochanter Anatomy 0.000 description 1
- 230000036244 malformation Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000012488 skeletal system development Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- A61B17/686—Plugs, i.e. elements forming interface between bone hole and implant or fastener, e.g. screw
-
- 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
- A61B2017/681—Alignment, compression, or distraction mechanisms
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Neurology (AREA)
- Surgical Instruments (AREA)
Abstract
The invention provides an osteotomy resetting device for femur and tibia, which comprises a base plate, wherein the front end of the base plate is provided with an adjusting block capable of overturning and locking back and forth, the adjusting block is provided with a centering through hole and at least one first positioning through hole which are arranged in parallel, and the rear end of the base plate is provided with an angle scale which is perpendicular to the base plate along the left-right direction; the angle scale is characterized in that an arc-shaped track extending along the distribution direction of the scale marks is arranged on the angle scale, the central line of the angle scale is perpendicular to the base plate, a sliding block capable of moving and positioning along the arc-shaped track is arranged on the angle scale, a second positioning through hole is formed in the sliding block, the central line of the centering through hole and the central line of the angle scale are always in the same plane, and the central line of the second positioning through hole is always parallel to one scale mark on the angle scale. The invention can accurately ensure the rotation reset angle of the femur and is easy to operate.
Description
Technical Field
The invention relates to a medical appliance for femur osteotomies and tibia osteotomies, in particular to an osteotomies resetting device for femur and tibia.
Background
Due to genetic or congenital developmental problems, some children have malformations in their lower limbs after birth, resulting in the need for lower limb osteotomy reposition at a certain age to restore normal physiological structure.
For children with lower limb growth deformity, the common surgical treatment includes four modes of proximal femur osteotomy reduction, distal femur osteotomy reduction, proximal tibia osteotomy reduction and distal tibia reduction, and in some cases, a combined surgical mode of the four modes is also possible.
For children with serious skeletal development deformity of lower limbs, the conventional osteotomy reposition also needs to rotationally reposition the bones. Currently, the proximal femur rotation and varus osteotomy methods are more and common methods include a line drawing method and an angle measuring method. Research shows that when the femoral rotation osteotomy is performed by adopting the line drawing method, the suture used in the process of measuring the perimeter of the osteotomy position has certain elasticity and different thickness, and especially for children, the femoral development of the children is not mature, the perimeter of the femoral shaft of the osteotomy position is smaller, so that the correction angle of the line drawing method is larger than the deviation of the pre-operation predicted value. Most osteotomy planes are near the level of the lesser trochanter, and morphological irregularities have some effect on the circumference measurement, exacerbating errors. When the angle measurement method is adopted to perform femur rotation osteotomy, the accuracy is theoretically increased, but when the Kirschner wire is positioned in actual operation, the distal femur condyle and the proximal two Kirschner wires are difficult to be just intersected with the center of the osteotomy surface, and larger errors can occur when deviation (especially young doctors with insufficient experience) occurs. The aim is to break through the space in the technology.
As described above, in the prior art, there is no clear solution to the above problem clinically, and still a conventional empirical operation is used, and there is no accurate method for treating rotational reduction of a lower limb growth deformity of a child, which brings a lot of inconveniences to the operation, so how to solve the technical problem of low rotational reduction precision is a subject to be studied by those skilled in the art.
Disclosure of Invention
The invention aims to provide the osteotomy resetting device for the femur and the tibia, which is accurate in rotation resetting and simple in operation, so as to overcome the defects in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme: the osteotomy resetting device for the femur and the tibia comprises a base plate, wherein an adjusting block capable of being turned back and forth and locked is arranged at the front end of the base plate, a centering through hole and at least one first positioning through hole which are arranged in parallel are formed in the adjusting block, and an angle scale perpendicular to the base plate is arranged at the rear end of the base plate along the left-right direction; the angle scale is characterized in that an arc-shaped track extending along the distribution direction of the scale marks is arranged on the angle scale, the central line of the angle scale is perpendicular to the base plate, a sliding block capable of moving and positioning along the arc-shaped track is arranged on the angle scale, a second positioning through hole is formed in the sliding block, the central line of the centering through hole and the central line of the angle scale are always in the same plane, and the central line of the second positioning through hole is always parallel to one scale mark on the angle scale.
Preferably, the front end of the base plate is provided with a plurality of clamping grooves along the front-back direction, the adjusting block is provided with a clamping block matched with the clamping grooves, and the clamping block is connected with the adjusting block through bolts.
Preferably, the adjusting block is provided with a slide way, a movable part is matched with the slide way, and the centering through hole and the first positioning through hole are both arranged on the movable part.
Further, a handle is arranged on the movable part.
Preferably, the circular arc track is a groove body arranged on the angle disc, and the sliding block moves along the groove body.
Further, the slider includes first splint and the second splint through bolted connection, and first splint and second splint are located the both sides of cell body, are equipped with the cooperation portion of inserting the cell body on the first splint, and the second location through-hole is seted up on first splint.
Preferably, two first positioning through holes are formed and are respectively positioned at the left side and the right side of the centering through hole.
Preferably, the angle scale is in plug-in fit with the base plate.
As described above, the osteotomy resetting device for femur and tibia of the present invention has the following advantageous effects:
The invention is suitable for osteotomy reposition of femur and tibia, can accurately ensure the rotation reposition angle of femur by the cooperation of the base plate, the adjusting block, the angle scale and the sliding block, and has easy operation. The invention mainly plays a role in assisting rotation and positioning, has no strict requirements on material selection and has low cost. The invention has versatility to patients in need of femoral reduction.
Drawings
Fig. 1 is a structural diagram of the present invention.
Fig. 2 is a partial structural view of the present invention.
Fig. 3 is a reference view of the present invention in combination with a k-wire.
Fig. 4 is a first reference view of a femoral resection procedure.
Fig. 5 is a second reference view of a femoral resection procedure.
Fig. 6 is a third reference view of a femoral resection procedure.
Fig. 7 is a fourth reference view of a femoral resection procedure.
Fig. 8 is a fifth reference view of a femoral resection procedure.
In the figure:
1. base plate 2 regulating block
3. 4 Sliding blocks of angle scale
11. Centering through hole of clamping groove 21
22. First positioning through hole 23 fixture block
24. Slide 25 movable part
26. Arc-shaped track of handle 31
41. Second positioning through hole 42 bolt
43. First clamping plate 44 second clamping plate
51. First Kirschner wire 52 second Kirschner wire
53. Third Kirschner wire 54 fourth Kirschner wire
100. Proximal femur 101
102. Distal 200 bone plate
Detailed Description
The structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the disclosure of the present invention, and are not intended to limit the scope of the invention, which is defined by the claims, but rather by the terms of modification, variation of proportions, or adjustment of sizes, without affecting the efficacy or achievement of the present invention, should be construed as falling within the scope of the present invention. In the meantime, the terms such as "left", "right", "front", "rear", "middle" and the like are also used in the present specification for convenience of description, but are not intended to limit the scope of the present invention, and the relative relation changes or modifications thereof are considered to be within the scope of the present invention without substantial modification of the technical content.
As shown in fig. 1-3, the osteotomy resetting device for femur and tibia of the present invention comprises a base plate 1, wherein an adjusting block2 capable of being turned back and forth and locked is arranged at the front end of the base plate 1, a centering through hole 21 and at least one first positioning through hole 22 are arranged in parallel on the adjusting block2, and an angle scale 3 perpendicular to the base plate 1 is arranged at the rear end of the base plate 1 along the left-right direction. The angle scale 3 is provided with a circular arc track 31 extending along the distribution direction of the scale marks, the central line of the angle scale 3 is perpendicular to the base plate 1, the angle scale 3 is provided with a slide block4 capable of moving and positioning along the circular arc track 31, and the slide block4 is provided with a second positioning through hole 41. The center line of the centering through hole 21 and the center line of the angle disc 3 are always in the same plane, and the center line of the second positioning through hole 41 is always parallel to one scale line on the angle disc 3. The angle dial 3 can also be called a circular dial, the graduation marks of the angle dial 3 extend and then intersect at a point, and the central line of the angle dial 3 passes through the intersection point; i.e. in practice, the centre line of the second positioning through-hole 41 is parallel to one of all graduation marks when the slider 4 is adjusted in position along the circular arc track 31. The present invention is generally known in the art in which the front-rear direction and the left-right direction are perpendicular to each other. Referring to fig. 3, the centering through hole 21, the first positioning through hole 22 and the second positioning through hole 41 are all used for penetrating the k-wire in actual use.
Taking osteotomy reposition of femur as an example, the structural principle and the use method of the invention are described with reference to fig. 1-8, and the method is as follows:
(1) Referring to fig. 1 and 4, the femur 100 of a human body is dissected, according to the operation position requirement, the hand-held base plate 1 is placed on the femur 100, one side of the adjusting block 2 is positioned on one side of the femur head, for convenience of description, the proximal end 101 is positioned on one side of the femur head, the distal end 102 is positioned on the opposite side of the femur head, and the angle scale 3 is positioned on the distal end 102. The adjustment block 2 is turned into position and locked according to the actual position situation, with particular reference to fig. 4.
(2) Referring to fig. 1 and 4, a first k-wire 51 is inserted into the centering through hole 21, a second k-wire 52 is inserted into the first positioning through hole 22, and the first and second k-wires 51 and 52 are both driven into the front end 101 to achieve positioning. Preferably, the first k-wire 51 is a 2.0 x 80mm k-wire and the second k-wire 52 is a 2.8 x 200mm k-wire.
(3) Referring to fig. 1 and 4, according to the angle of the rotation and the reset of the proximal end 101 and the distal end 102 required in the operation plan, the slider 4 is adjusted to a required position and locked, and then the third k-wire 53 is inserted through the second positioning through hole 41, and the third k-wire 53 is driven into the distal end 102. Preferably, the third k-wire 53 is a 2.0 x 80mm k-wire. At this time, the first k-wire 51 and the third k-wire 53 are not coplanar with each other, but the extension line of the third k-wire 53 is always parallel to one of the scale lines of the angle scale regardless of the displacement of the slider 4, as shown in fig. 4 and 5.
(4) The angle dial 3, the adjusting block 2 and the basic 1 of the present invention are all removed, and as shown in fig. 5, only the first, second and third k-wires 51, 52, 53 remain.
(5) The femur 100 is osteotomy, as shown in fig. 6, after which the proximal end 101 or the distal end 102 is rotated to perform anatomic reduction, and when the first k-wire 51 on the proximal end 101 and the third k-wire 53 on the distal end 102 are on the same plane, the reduction is initially completed, and the proximal end 101 and the distal end 102 are positioned by using specialized equipment, so that the relative positions of the first k-wire 51 and the third k-wire 53 are ensured to be stable. In this step, after the proximal end 101 and the distal end 102 relatively rotate, the third k-wire 53 is moved to the center line of the angle disc 3, and because the center line of the centering through hole 21 and the center line of the angle disc 3 are always in the same plane, the first k-wire 51 and the third k-wire 53 are coplanar, and the rotation angle meets the requirement.
(6) As shown in fig. 7, the bone plate 200 is mounted on the proximal end 101 of the femur 100 by the first and second k-wires 51, 52, and the fourth k-wire 54 of 2.8 x 80mm is implanted into the distal end 102 in the tail groove of the bone plate 200, where the first k-wire 51, the third k-wire 53 and the fourth k-wire 54 are all on the same plane, and the position of the bone plate 200 is also defined.
(7) As shown in fig. 8, bone screws are implanted through the through holes of the bone plate 200 into the proximal and distal femur 101 and 102, and all the k-wires are removed from the proximal and distal femur 101 and 102 one by one, with the reduction of the femur completed and the wound sutured, in accordance with conventional methods.
In a preferred embodiment, as shown in fig. 2, the front end of the base plate 1 is provided with a plurality of clamping grooves 11 along the front-back direction, the adjusting block 2 is provided with a clamping block 23 matched with the clamping grooves, and the clamping block 23 is connected with the adjusting block 2 through bolts. Specific: all clamping grooves 11 are formed along the circular arc direction so as to be matched with the clamping blocks 23. When the adjusting block 2 is used, the bolt is unscrewed, the adjusting block 2 can be freely turned over with the clamping block 23, the clamping block 23 can be inserted into different clamping grooves 11, when the clamping block 23 is inserted into the clamping groove 11, the bolt is screwed, the clamping block 23 can not move any more, and the position of the adjusting block 2 is locked. In other embodiments, a front-back direction hole plate may be disposed on the base plate 1, a plurality of through holes are formed on the hole plate, a positioning hole is formed on the adjusting block 2, and a bolt passes through the through hole on the hole plate to be matched with the positioning hole, so as to realize adjustment and locking of the position of the adjusting block 2.
In a preferred embodiment, for the convenience of the doctor, as shown in fig. 2, the adjusting block 2 is provided with a slide 24, and in combination with fig. 1-3, a movable portion 25 is provided in cooperation with the slide 24, and the centering through hole 21 and the first positioning through hole 22 are both provided on the movable portion 25. The movable portion 25 and the adjusting block 2 are detachably provided, so that the storage and preservation can be facilitated. The movable part 25 is provided with a rod-shaped handle 26 so as to be convenient for operation and use during operation.
In a preferred embodiment, the circular arc-shaped rail 31 is a groove body formed on the angle scale 3, and the sliding block 4 moves along the groove body. The sliding block 4 comprises a first clamping plate 43 and a second clamping plate 44 which are connected through bolts 42, the first clamping plate 43 and the second clamping plate 44 are positioned on two sides of the groove body, a matching part for inserting the groove body is arranged on the first clamping plate 43, and the second positioning through hole 41 is formed in the first clamping plate 43.
In the preferred embodiment, referring to fig. 1, the first positioning through holes 22 are formed in two and are located on the left and right sides of the centering through hole 21, respectively.
In a preferred embodiment, the angle plate 3 is in a plug-in fit with the base plate 1 for ease of use.
The central line of the angle dial 3 in the invention is a zero degree line, the scales of the angle dial form 50 degrees to two sides respectively, namely 100 degrees integrally, and the sliding block 4 can move in an arc-shaped range of 100 degrees. Other angular ranges may be devised as desired.
In the design process of the angle scale, in order to ensure the accuracy of the rotation angle during tibia reposition, the diaphyseal axis with the diameter of 20mm is taken as the rotation center, namely, the intersecting point after all scale marks on the angle scale 3 are extended is on the center of the diaphyseal section, and the intersecting point is a virtual point, and the actual effect is not influenced because the thicknesses of human bones are different but are within the allowable deviation range.
In summary, the osteotomy resetting device for the femur and the tibia effectively solves the practical problems in the prior art, and has high utilization value and use significance.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. The present invention is capable of modifications in the foregoing embodiments, as obvious to those skilled in the art, without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (6)
1. An osteotomy reposition device for a femur and tibia, characterized by: the device comprises a base plate (1), wherein an adjusting block (2) capable of being turned back and forth and locked is arranged at the front end of the base plate (1), a centering through hole (21) and at least one first positioning through hole (22) which are arranged in parallel are formed in the adjusting block (2), and an angle scale (3) perpendicular to the base plate (1) is arranged at the rear end of the base plate (1) along the left-right direction; the angle dial (3) is provided with a circular arc track (31) extending along the distribution direction of the scale marks, the central line of the angle dial (3) is perpendicular to the base plate (1), the angle dial (3) is provided with a sliding block (4) capable of moving and positioning along the circular arc track (31), the sliding block (4) is provided with a second positioning through hole (41), the central line of the centering through hole (21) and the central line of the angle dial (3) are always in the same plane, and the central line of the second positioning through hole (41) is always parallel to one scale mark on the angle dial (3); the front end of the base plate (1) is provided with a plurality of clamping grooves (11) along the front-back direction, the adjusting block (2) is provided with a clamping block (23) matched with the clamping grooves, and the clamping block (23) is connected with the adjusting block (2) through bolts; the adjusting block (2) is provided with a slide way (24), a movable part (25) is matched with the slide way (24), and the centering through hole (21) and the first positioning through hole (22) are both arranged on the movable part (25).
2. Osteotomy repositioning device for femur and tibia as in claim 1, wherein: the movable part (25) is provided with a handle (26).
3. Osteotomy repositioning device for femur and tibia as in claim 1, wherein: the circular arc-shaped track (31) is a groove body arranged on the angle disc (3), and the sliding block (4) moves along the groove body.
4. An osteotomy repositioning device for a femur and tibia as in claim 3, wherein: the sliding block (4) comprises a first clamping plate (43) and a second clamping plate (44) which are connected through bolts (42), the first clamping plate (43) and the second clamping plate (44) are located on two sides of the groove body, the first clamping plate (43) is provided with a matching part inserted into the groove body, and the second positioning through hole (41) is formed in the first clamping plate (43).
5. Osteotomy repositioning device for femur and tibia as in claim 1, wherein: the first positioning through holes (22) are formed in two and are respectively positioned at the left side and the right side of the centering through hole (21).
6. Osteotomy repositioning device for femur and tibia as in claim 1, wherein: the angle scale (3) is in plug-in fit with the base plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810603501.7A CN110584762B (en) | 2018-06-12 | 2018-06-12 | Osteotomy reduction device for femur and tibia |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810603501.7A CN110584762B (en) | 2018-06-12 | 2018-06-12 | Osteotomy reduction device for femur and tibia |
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| Publication Number | Publication Date |
|---|---|
| CN110584762A CN110584762A (en) | 2019-12-20 |
| CN110584762B true CN110584762B (en) | 2024-04-26 |
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| CN201810603501.7A Active CN110584762B (en) | 2018-06-12 | 2018-06-12 | Osteotomy reduction device for femur and tibia |
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| CN104983454A (en) * | 2015-07-23 | 2015-10-21 | 柳州铁道职业技术学院 | Extracorporeal measuring and controlling device for closed reduction in human femur fracture operation |
| KR20170089116A (en) * | 2016-01-26 | 2017-08-03 | 김정엽 | Iron core assembly for the treatment of fractures |
| CN205903300U (en) * | 2016-05-05 | 2017-01-25 | 颉强 | Improved generation children epiphysis blocks 8 word steel sheets |
| GB201705917D0 (en) * | 2017-04-12 | 2017-05-24 | Davidson Craig | Femoral trialling kit and assembly |
| CN209153929U (en) * | 2018-06-12 | 2019-07-26 | 颉强 | Osteotomy resetting apparatus for femur and shin bone |
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| CN110584762A (en) | 2019-12-20 |
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