CN111513810A - Osteotomy guider - Google Patents
Osteotomy guider Download PDFInfo
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- CN111513810A CN111513810A CN202010358611.9A CN202010358611A CN111513810A CN 111513810 A CN111513810 A CN 111513810A CN 202010358611 A CN202010358611 A CN 202010358611A CN 111513810 A CN111513810 A CN 111513810A
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- 210000002082 fibula Anatomy 0.000 claims abstract description 14
- 238000003780 insertion Methods 0.000 claims description 38
- 230000037431 insertion Effects 0.000 claims description 38
- 210000002303 tibia Anatomy 0.000 claims description 21
- 210000000988 bone and bone Anatomy 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims 1
- 210000000845 cartilage Anatomy 0.000 description 6
- 230000000399 orthopedic effect Effects 0.000 description 4
- 210000000629 knee joint Anatomy 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 208000010300 Genu Varum Diseases 0.000 description 2
- 206010061218 Inflammation Diseases 0.000 description 2
- 241000469816 Varus Species 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000004054 inflammatory process Effects 0.000 description 2
- 210000000281 joint capsule Anatomy 0.000 description 2
- 210000003041 ligament Anatomy 0.000 description 2
- 210000003141 lower extremity Anatomy 0.000 description 2
- 201000008482 osteoarthritis Diseases 0.000 description 2
- 208000024891 symptom Diseases 0.000 description 2
- 206010058314 Dysplasia Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 206010003246 arthritis Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002594 fluoroscopy Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000005499 meniscus Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 238000012546 transfer Methods 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
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1732—Guides or aligning means for drills, mills, pins or wires for bone breaking devices
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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
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1739—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body
- A61B17/1764—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the knee
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Heart & Thoracic Surgery (AREA)
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Abstract
The present invention provides an osteotomy guide comprising: a frame having a main bar, a first branch bar and a second branch bar, and forming a letter-shaped structure; the positioning structure is arranged on the second supporting rod and is suitable for being positioned at the small head of the fibula; the first guide sleeve is arranged on the first support rod and is provided with a first central guide hole, and the central axis of the first central guide hole penetrates through the central position of the positioning structure; the positioning column is rotatably sleeved on the first guide sleeve and is provided with a plurality of through holes; and the second guide sleeve is detachably arranged in one through hole and is provided with a second central guide hole, and the central axis of the first central guide hole is parallel to that of the second central guide hole. The osteotomy guider can limit the needle inserting position and the needle inserting direction of the kirschner wire by using the first guide sleeve and the second guide sleeve after the osteotomy position is determined, does not deviate, completes high-quality osteotomy at one time, and has high operation efficiency.
Description
Technical Field
The invention relates to the technical field of auxiliary tools for orthopedic osteotomy, in particular to an osteotomy guider for auxiliary positioning of proximal high-position osteotomy of tibia.
Background
When a patient with the genu varus deformity, in particular to a young genu varus patient with the proximal tibial dysplasia has pain on the inner side of the knee joint, the proximal tibial high osteotomy orthopedic operation is needed. The therapeutic mechanism of the proximal high-position osteotomy of the tibia is that a load-bearing force line is transferred from an inner compartment of a knee joint which is subjected to inflammation and abrasion to a relatively normal outer compartment through proximal tibial osteotomy, so that the aim of relieving arthritis symptoms is fulfilled.
Specifically, the knee joint with normal force lines generally has a large medial load and a small lateral load. If there is some degree of varus deformity in the tibia, the pressure exerted on the cartilage in the medial compartment is significantly increased beyond the range to which the cartilage is subjected, thereby triggering a series of vicious cycles of cartilage wear and inflammation, leading to medial osteoarthritis. Before osteoarthritis has not developed to the outside, proximal tibial high osteotomy can properly transfer a lower limb force line to a normal lateral compartment by correcting tibial varus deformity, so that the pressure of the medial compartment is obviously reduced, and the medial compartment is restored to a normal range which can be borne by cartilage, so that the wear of the cartilage can be effectively prevented, pain symptoms can be relieved, and even the worn cartilage and the injured meniscus can be self-repaired.
Open osteotomy needs to be carried out on the inner side of the tibia in the proximal tibia high-position osteotomy orthopedic surgery to correct the proximal tibia inversion angle, so that the whole lower limb load bearing line is corrected. Specifically, a measurement position is fixed from the inner side of the proximal tibia, a bone is cut in the direction of the fibula small head, then the opening operation of a cut bone area is carried out, and the angle between the proximal tibial articular surface and the force line of the tibia is corrected. The traditional bone cutting method is generally to perform blind striking after fluoroscopy, i.e. to drive two pairs of parallel kirschner wires, and then to use an oscillating saw to tightly attach the pair of parallel kirschner wires to cut bones. The traditional method for driving the kirschner wire has the advantages that the kirschner wire is not assisted by tools, the deviation is easy to occur, the perspective is needed after the kirschner wire is driven, and once the deviation occurs, the correction is needed, so that the operation efficiency is low.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the technical defect that the operation efficiency is low because the deviation is easy to occur and the deviation needs to be corrected once the deviation occurs because no special tool is used in the prior art during the proximal high tibial osteotomy orthopedic operation, and the operation efficiency can be improved.
To this end, the present invention provides an osteotomy guide comprising:
the frame is provided with a main rod, a first branch rod fixedly connected with one end of the main rod and a second branch rod slidably sleeved on the main rod, and the first branch rod is parallel to the second branch rod and forms a character-shaped structure together with the main rod;
the positioning structure is arranged on the second supporting rod and is suitable for being positioned at the small head position of the fibula;
the first guide sleeve is fixedly arranged on the first support rod and provided with a first central guide hole, and the central axis of the first central guide hole penetrates through the central position of the positioning structure;
the positioning column is rotatably sleeved on the first guide sleeve and is provided with a plurality of through holes;
the second guide sleeve is detachably mounted inside one of the through holes and provided with a second central guide hole, and the central axis of the first central guide hole is parallel to the central axis of the second central guide hole.
Preferably, the positioning structure is a positioning bowl and is suitable for being buckled at the small head position of the fibula.
Preferably, the main rod is a polygonal prism structure, and the second branch rod can move along the axial direction of the main rod but cannot rotate around the circumferential direction of the main rod.
Preferably, the second guide sleeve comprises a second guide sleeve body and an annular flange arranged at one end of the second guide sleeve body, and the outer diameter of the second guide sleeve body is consistent with the inner diameter of the through hole.
As a preferable scheme, the bone cutting device further comprises a position determining part, one end of the position determining part is rotatably installed on the positioning column, the other end of the position determining part is provided with a reference end, the central axis of the first central guide hole and the central axis of the second central guide hole determine an osteotomy reference surface, and the reference end is a set distance away from the osteotomy reference surface.
Preferably, the control end is provided with an insertion plate, and the insertion plate is parallel to the osteotomy reference surface.
Preferably, the insertion plate is provided with a plurality of insertion guide holes, and the central axes of the insertion guide holes are parallel and coplanar and parallel to the osteotomy reference plane.
As a preferred scheme, the position determination piece includes the base, the one end of base forms U type structure, two relative side faces of U type structure have rotatable cover and establish the mounting hole on the reference column, the other end of base is equipped with the instruction pole, the position bending of instruction pole along inboard shin bone near-end, the top of instruction pole is the comparison end.
Preferably, the first guide sleeve is located on the inner side of the U-shaped structure, and all the through holes are located on the outer side of the U-shaped structure.
As a preferable scheme, the main rod is provided with scales, and the 0-scale position of the scales is flush with the end part of the first guide sleeve facing the positioning structure; the scale increases from the 0 scale position toward a direction away from the first strut.
The technical scheme provided by the invention has the following advantages:
1. the osteotomy guider comprises a frame, a positioning structure, a first guide sleeve, a positioning column and a second guide sleeve; the first guide sleeve is arranged on the frame and provided with a first central guide hole, and the central axis of the first central guide hole penetrates through the central position of the positioning structure and is used for guiding the nailing of the first kirschner wire; the positioning column is rotatably sleeved on the first guide sleeve, the second guide sleeve is arranged in the through hole of the positioning column and is provided with a second central guide hole, the central axis of the first central guide hole is parallel to the central axis of the second central guide hole, so that the osteotomy reference surface is determined, and because the osteotomy is performed by cutting the bone by the edge of the Kirschner wire tightly attached to the oscillating saw, the difference between the osteotomy reference surface and the actual osteotomy surface is about the distance of the radius of the Kirschner wire.
When open osteotomy is carried out, after the osteotomy position is determined, a first guide sleeve of the osteotomy guide is abutted against the position to be osteotomy, the osteotomy position is tangent to a first central guide hole, a second support rod is slid to enable a positioning structure to be abutted against the small head of a fibula, a second guide sleeve is inserted into a proper through hole position of a positioning column, the direction of the positioning column is adjusted to enable the plane determined by the central axis of a second central guide hole and the central axis of a first central guide hole to be consistent with the backward tilting angle of a tibial platform, then a second Kirschner wire is nailed into the tibia after penetrating through the second central guide hole at the determined position, after two Kirschner wires are nailed, the osteotomy guide is removed, and a swing saw is used for clinging to the two Kirschner wires to carry out osteotomy until the osteotomy is cut to the opposite side and the cortex on one side is remained to form a hinge, so that the osteotomy position can be heal.
The osteotomy guider can limit the needle inserting position and the needle inserting direction of the Kirschner wire by using the first guide sleeve and the second guide sleeve after determining the osteotomy position, does not deflect, can cut bones with high quality at one time, and has high operation efficiency; in addition, the first guide sleeve, the second guide sleeve and the positioning column are matched with each other, so that the first Kirschner wire and the second Kirschner wire can be kept parallel after the needle is inserted, and the swing saw can be conveniently and closely attached to the first Kirschner wire and the second Kirschner wire for bone cutting.
2. The invention relates to an osteotomy guider, wherein a positioning structure is a positioning bowl and is suitable for being buckled at the small head of a fibula; the bowl-shaped structure is convenient to press and fix and is convenient to operate.
3. According to the osteotomy guider, the main rod is of the polygonal prism structure, the second supporting rod can only move along the axial direction of the main rod but cannot rotate around the circumferential direction of the main rod, so that the positioning structure can only move back and forth in the direction close to or far away from the first guide sleeve, and the positioning structure is always opposite to the first guide sleeve in the moving process, so that the adjusting efficiency can be improved.
4. According to the osteotomy guider, the second guide sleeve comprises the second guide sleeve main body and the annular flange, and the second guide sleeve is pressed towards the direction of the positioning structure after being inserted into the through hole in the positioning column, so that the second guide sleeve is prevented from being totally immersed into the through hole, and the osteotomy guider is convenient to operate.
5. The osteotomy guider further comprises a position determining piece, one end of the position determining piece is rotatably arranged on the positioning column, the other end of the position determining piece is provided with a reference end, the central axis of the first central guide hole and the central axis of the second central guide hole determine an osteotomy reference surface (the radius of one central guide hole is higher or lower than the actual osteotomy surface), then the distance between the reference end and the osteotomy reference surface is set, the distance between the actual osteotomy position and an inner tibial platform is ensured to be about 3.5cm, and accordingly the related surgical requirements are met (generally, the osteotomy position is required to be about 3.5cm below the tibial platform on the side far away from the fibula).
6. The osteotomy guider is provided with an inserting plate at the reference end, and the inserting plate is parallel to an osteotomy reference surface; when cutting the bone, the cutting surface is required to be the same as the back inclination angle of the tibial plateau; after the insertion plate parallel to the osteotomy reference surface is arranged, the insertion plate is inserted to the tibial plateau position in the operation process, so that the back inclination angle of the insertion plate and the tibial plateau is the same, the first guide sleeve and the second guide sleeve can be ensured to be the same with the back inclination angle for guiding the Kirschner wire, and the bone plane cut by clinging to the Kirschner wire is also ensured to be the same with the inclination angle.
7. The osteotomy guider is characterized in that the inserting plate is provided with a plurality of inserting guide holes, and the central axes of the plurality of inserting guide holes are parallel and coplanar and are parallel to an osteotomy reference surface; because of the influence of the joint capsule and the ligament at the position of the inner tibial plateau, the insertion of the insertion plate is hard, at the moment, the insertion plate can be fixed by inserting at least two Kirschner wires at the position of the insertion guide hole, and the inclination angle of the insertion plate is the same as the back inclination angle of the tibial plateau, so that the insertion difficulty of the insertion plate is reduced.
8. The osteotomy guider comprises a base, wherein one end of the base forms a U-shaped structure, and two opposite side surfaces of the U-shaped structure are rotatably arranged on a positioning column through mounting holes; the other end of the base is provided with an indicating rod, the indicating rod is bent along the position of the proximal end of the inner tibia, and the top end of the indicating rod is a comparison end; this kind of structural design can adapt to the human skeleton texture of tibial plateau to shin bone near-end position, and the convenience is compared with the reference end, also makes things convenient for leaning on of the first uide bushing in reference column position and second uide bushing.
9. According to the osteotomy guider disclosed by the invention, the first guide sleeve is positioned on the inner side of the U-shaped structure, the through hole is positioned on the outer side of the U-shaped structure, the whole osteotomy guider is compact in structure, the second guide sleeve is convenient to disassemble, the indication rod is positioned in the middle position, and the comparison of the comparison end is convenient.
10. The osteotomy guider is characterized in that the main rod is provided with scales, and the 0-scale position is flush with the end part of the first guide sleeve facing the positioning structure; when the kirschner wire is nailed, the kirschner wire with scales can be adopted, the approximate position of the kirschner wire which is nailed can be known by observing the scales on the kirschner wire, and the shin bone is prevented from being penetrated.
Drawings
To more clearly illustrate the technical solutions in the prior art or the embodiments of the present invention, the drawings used in the description of the prior art or the embodiments are briefly introduced below.
Figure 1 is a schematic view of the overall construction of the osteotomy guide of the present invention.
Fig. 2 is another perspective view of fig. 1.
Fig. 3 is a modified structure view of the position determining member of fig. 1.
Reference numerals: 1. a frame; 10. a main rod; 11. a first support bar; 12. a second support bar; 2. a positioning structure; 31. a first guide sleeve; 310. a first central guide hole; 32. a second guide sleeve; 320. a second central pilot hole; 321. a second guide sleeve body; 322. an annular flange; 4. a positioning column; 41. a through hole; 5. a position determining member; 50. a base; 51. a comparison end; 52. an insert plate; 53. mounting holes; 54. an indication lever; 55. a side surface; 56. the guide hole is inserted.
Detailed Description
The technical solution of the present invention is described in detail below with reference to the accompanying drawings.
Examples
The present embodiment provides an osteotomy guide, as shown in fig. 1-2, comprising: the frame 1 is provided with a main rod 10, a first branch rod 11 fixedly connected with one end of the main rod 10 and a second branch rod 12 slidably sleeved on the main rod 10, wherein the first branch rod 11 is parallel to the second branch rod 12 and forms a character-shaped structure together with the main rod 10; the positioning structure 2 is arranged on the second supporting rod 12 and is suitable for being positioned at a fibula small head position; the first guide sleeve 31 is fixedly arranged on the first support rod 11 and is provided with a first central guide hole 310, and the central axis of the first central guide hole 310 penetrates through the central position of the positioning structure 2; the positioning column 4 is rotatably sleeved on the first guide sleeve 31, and a plurality of through holes 41 are formed in the positioning column 4; and a second guide sleeve 32 detachably mounted inside one of the through holes 41, the second guide sleeve 32 having a second central guide hole 320, the central axis of the first central guide hole 310 being parallel to the central axis of the second central guide hole 320.
The central axis of the first central guide hole 310 is parallel to the central axis of the second central guide hole 320, so that an osteotomy reference surface can be determined, and the osteotomy reference surface is different from an actual osteotomy surface by a distance of about one Kirschner wire radius size because the osteotomy is the osteotomy of which the edge of the Kirschner wire is tightly attached by the oscillating saw.
When the open osteotomy is performed, after the osteotomy position is determined, the first guide sleeve 31 of the osteotomy guide of the embodiment is pressed against the position to be osteotomy, so that the osteotomy position is tangent to the first central guide hole 310, the second support rod 12 is slid, so that the positioning structure 2 is pressed against the fibula small head position, inserting the second guiding sleeve 32 into the proper through hole 41 of the positioning column 4, adjusting the direction of the positioning column 4, making the plane defined by the central axis of the second central guiding hole 320 and the central axis of the first central guiding hole 310 consistent with the retroversion angle of the tibial plateau, then, in the determined position, the second kirschner wire is inserted into the tibia after passing through the second central guide hole 320, and after the two kirschner wires are inserted, and removing the osteotomy guider, and using an oscillating saw to cling to the two Kirschner wires for osteotomy until the osteotomy guider is cut to the opposite side, wherein the osteotomy guider cannot be completely cut, and the cortex on one side is kept to form a hinge, so that the osteotomy part can be healed as soon as possible.
The osteotomy guide of the embodiment can limit the needle inserting position and the needle inserting direction of the kirschner wire by using the first guide sleeve 31 and the second guide sleeve 32 after determining the osteotomy position, does not deflect, completes high-quality osteotomy at one time, and has high operation efficiency; in addition, the first guide sleeve 31, the second guide sleeve 32 and the positioning column 4 are matched with each other, so that the first Kirschner wire and the second Kirschner wire can be kept parallel after the needle is inserted, and the swing saw can be conveniently and closely attached to the first Kirschner wire and the second Kirschner wire for osteotomy.
The positioning structure is a positioning bowl and is suitable for being buckled at the small head of the fibula; the bowl-shaped structure is convenient to press and fix and is convenient to operate.
The main rod 10 has a polygonal prism structure, and the second pole 12 can move along the axial direction of the main rod 10 but cannot rotate around the circumferential direction of the main rod 10. Specifically, in the present embodiment, the main rod 10 is a quadrangular prism, and the second supporting rod 12 is slidably sleeved on the main rod 10 through a sliding sleeve having a quadrangular inner cavity.
So set up for location structure 2 can only be in the direction round trip movement that is close to or keeps away from first uide bushing 31, and at the removal in-process, location structure 2 is relative with first uide bushing 31 all the time, thereby can improve regulation efficiency.
The second guide sleeve 32 comprises a second guide sleeve body 321 and an annular flange 322 arranged at one end of the second guide sleeve body 321, and the outer diameter of the second guide sleeve body 321 is consistent with the inner diameter of the through hole 41. After the second guiding sleeve 32 is inserted into the through hole 41 of the positioning column 4, it is pressed towards the direction of the positioning structure 2, so that the whole part is not submerged into the through hole 41, and the operation is convenient.
The bone osteotomy device further comprises a position determining piece 5, wherein one end of the position determining piece 5 is rotatably arranged on the positioning column 4, the other end of the position determining piece is provided with a reference end 51, the central axis of the first central guide hole 310 and the central axis of the second central guide hole 320 determine an osteotomy reference surface (the radius of one central guide hole is higher or lower than the actual osteotomy surface), and the distance between the reference end 51 and the osteotomy reference surface is set to ensure that the actual osteotomy position is about 3.5cm away from the tibial plateau; thereby meeting the relevant surgical requirements (typically, on the side away from the fibula, the osteotomy position is required to be about 3.5cm below the tibial plateau).
The control end 51 is provided with an insertion plate 52, the insertion plate 52 being parallel to the osteotomy reference plane. When in osteotomy, the osteotomy surface is required to have the same inclination angle with the tibial plateau; after the insertion plate 52 parallel to the osteotomy reference plane is provided, the insertion plate 52 is inserted to the tibial plateau position during the operation, so that the insertion plate 52 has the same posterior inclination angle with the tibial plateau, and at this time, the first guide sleeve 31 and the second guide sleeve 32 can ensure that the direction of the kirschner wire is the same as the inclination angle, thereby ensuring that the plane of the bone resected by clinging to the kirschner wire is also the same as the inclination angle.
As a modification, referring to FIG. 3, a plurality of insertion guide holes 56 are formed on the insertion plate 52, and the central axes of the plurality of insertion guide holes 56 are parallel and coplanar and parallel to the osteotomy reference plane. The insertion of the insertion plate 52 is laborious due to the influence of the joint capsule and ligaments at the medial tibial plateau, and the insertion plate 52 can be fixed by inserting at least two k-wires at the insertion guide holes 56, and the inclination angle of the insertion plate 52 is the same as that of the bone plateau, thereby reducing the difficulty of inserting the insertion plate 52.
The position determining member 5 includes a base 50, one end of the base 50 forms a U-shaped structure, two opposite side surfaces 55 of the U-shaped structure have mounting holes 53 rotatably sleeved on the positioning column 4, the other end of the base 50 is provided with an indicating rod 54, the indicating rod 54 is bent along the position of the proximal end of the medial tibia, and the top end of the indicating rod 54 is the comparison end 51. This kind of structural design can adapt to the human skeleton texture of tibial plateau to the shin bone near-end position, and the comparison of convenient reference end also makes things convenient for leaning on of first uide bushing 31 and second uide bushing 32 in reference column 4 position.
The first guide sleeve 31 is located on the inner side of the U-shaped structure, and all the through holes 41 are located on the outer side of the U-shaped structure. Make whole osteotomy director compact structure, make things convenient for the dismantlement of second uide bushing 32, and make the indicator rod 54 be located the position placed in the middle, make things convenient for the comparison of comparison end.
The main rod 10 is provided with scales, and the 0 scale position of the scales is flush with the end part of the first guide sleeve 31 facing the positioning structure 2; the scale increases from the 0 scale position toward a direction away from the first strut 11. When the kirschner wire is nailed, the kirschner wire with scales can be adopted, the approximate position of the kirschner wire which is nailed can be known by observing the scales on the kirschner wire, and the shin bone is prevented from being penetrated. In addition, when the kirschner wire is inserted into the first guide sleeve 31 or the second guide sleeve 32 until the tip part is flush with the 0 scale, the position of the kirschner wire, which is just not inserted, at the other end of the first guide sleeve 31 or the second guide sleeve 32 is set to be the 0 scale, and then the scale value is increased towards the direction far away from the first guide sleeve 31 or the second guide sleeve 32, so that the nailing depth of the kirschner wire can be more conveniently known when the kirschner wire is nailed.
The method of use of the osteotomy guide of this embodiment is as follows:
the osteotomy site is first determined, the insertion plate 52 of the osteotomy guide of the present embodiment is placed flush with the tibial plateau, and then the insertion plate 52 is secured through the insertion guide holes 56 using two k-wires, with the angle of inclination of the insertion plate 52 being the same as the posterior angle of inclination of the tibial plateau;
the first guide sleeve 31 is abutted against the tibia, the second support rod 12 is slid, the positioning structure 2 is abutted against the small head of the fibula, the second guide sleeve 32 is inserted into the proper through hole 41 of the positioning column 4, the second kirschner wire is screwed into the tibia after passing through the second central guide hole 320 of the second guide sleeve 32, the osteotomy guide is removed after the two kirschner wires are screwed into the tibia, and the swing saw is used for clinging the two kirschner wires to perform osteotomy until the osteotomy is performed to the opposite side.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. An osteotomy guide, comprising: the method comprises the following steps:
the frame (1) is provided with a main rod (10), a first branch rod (11) fixedly connected with one end of the main rod (10) and a second branch rod (12) slidably sleeved on the main rod (10), wherein the first branch rod (11) is parallel to the second branch rod (12) and forms a character-shaped structure together with the main rod (10);
the positioning structure (2) is arranged on the second strut (12) and is suitable for being positioned at a fibula small head position;
the first guide sleeve (31) is fixedly arranged on the first support rod (11) and is provided with a first central guide hole (310), and the central axis of the first central guide hole (310) penetrates through the central position of the positioning structure (2);
the positioning column (4) is rotatably sleeved on the first guide sleeve (31), and a plurality of through holes (41) are formed in the positioning column (4);
a second guide sleeve (32) detachably mounted inside one of the through holes (41), the second guide sleeve (32) having a second central guide hole (320), a central axis of the first central guide hole (310) being parallel to a central axis of the second central guide hole (320).
2. The osteotomy guide of claim 1, wherein: the positioning structure (2) is a positioning bowl and is suitable for being buckled at the small head of the fibula.
3. The osteotomy guide of claim 1, wherein: the mobile jib (10) is polygon prism structure, second branch (12) can follow the axial displacement of mobile jib (10), but can not wind the circumferential direction of mobile jib (10).
4. The osteotomy guide of claim 1, wherein: the second guide sleeve (32) comprises a second guide sleeve main body (321) and an annular flange (322) arranged at one end of the second guide sleeve main body (321), and the outer diameter of the second guide sleeve main body (321) is consistent with the inner diameter of the through hole (41).
5. The osteotomy guide of any one of claims 1-4, wherein: the bone cutting device is characterized by further comprising a position determining part (5), one end of the position determining part (5) is rotatably installed on the positioning column (4), the other end of the position determining part is provided with a reference end (51), the central axis of the first central guide hole (310) and the central axis of the second central guide hole (320) determine a bone cutting reference surface, and the distance between the reference end (51) and the bone cutting reference surface is a set distance.
6. The osteotomy guide of claim 5, wherein: the reference end (51) is provided with an insertion plate (52), and the insertion plate (52) is parallel to the osteotomy reference surface.
7. The osteotomy guide of claim 6, wherein: the insertion plate (52) is provided with a plurality of insertion guide holes (56), and the central axes of the insertion guide holes (56) are parallel and coplanar and are parallel to the osteotomy reference surface.
8. The osteotomy guide of claim 7, wherein: the position determining piece (5) comprises a base (50), one end of the base (50) forms a U-shaped structure, two opposite side faces (55) of the U-shaped structure are provided with mounting holes (53) which are rotatably sleeved on the positioning columns (4), the other end of the base (50) is provided with an indicating rod (54), the indicating rod (54) is bent along the position of the proximal end of the inner tibia, and the top end of the indicating rod (54) is the comparison end (51).
9. The osteotomy guide of claim 8, wherein: the first guide sleeve (31) is located on the inner side of the U-shaped structure, and all the through holes (41) are located on the outer side of the U-shaped structure.
10. The osteotomy guide of claim 1, wherein: scales are arranged on the main rod (10), and the 0 scale position of the scales is flush with the end part, facing the positioning structure (2), of the first guide sleeve (31); the scale increases from the 0 scale position in a direction away from the first strut (11).
Priority Applications (1)
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| CN202010358611.9A CN111513810A (en) | 2020-04-29 | 2020-04-29 | Osteotomy guider |
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| CN202010358611.9A CN111513810A (en) | 2020-04-29 | 2020-04-29 | Osteotomy guider |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112842454A (en) * | 2020-12-31 | 2021-05-28 | 福州市第二医院（福建省福州中西医结合医院、福州市职业病医院） | Guider for osteotomy around knee joint and application of guider |
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| US20100087824A1 (en) * | 2008-10-03 | 2010-04-08 | Howmedica Osteonics Corp. | High tibial osteotomy instrumentation |
| CN206576942U (en) * | 2016-12-02 | 2017-10-24 | 于野 | A kind of High Tibial Osteotomy guider |
| CN212382704U (en) * | 2020-04-29 | 2021-01-22 | 山东大学齐鲁医院(青岛) | Auxiliary positioning guider for high-position proximal tibia osteotomy |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100087824A1 (en) * | 2008-10-03 | 2010-04-08 | Howmedica Osteonics Corp. | High tibial osteotomy instrumentation |
| CN206576942U (en) * | 2016-12-02 | 2017-10-24 | 于野 | A kind of High Tibial Osteotomy guider |
| CN212382704U (en) * | 2020-04-29 | 2021-01-22 | 山东大学齐鲁医院(青岛) | Auxiliary positioning guider for high-position proximal tibia osteotomy |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112842454A (en) * | 2020-12-31 | 2021-05-28 | 福州市第二医院（福建省福州中西医结合医院、福州市职业病医院） | Guider for osteotomy around knee joint and application of guider |
| CN112842454B (en) * | 2020-12-31 | 2022-05-10 | 福州市第二医院（福建省福州中西医结合医院、福州市职业病医院） | Guider for osteotomy around knee joint and application of guider |
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