KR20200050229A - Bow-leg revising structure - Google Patents

Abstract

According to the present invention, a corrector for a bent leg comprises: a fibula extending from an ankle of a bent leg toward a femur, and including a boundary separated, when viewed from a side, from the cartilage below the femur in the bent leg and obliquely facing the cartilage; a tibia disposed around the fibula, extending along the fibula to be in contact with the cartilage, including a wedge-shaped opening portion opened from the opposite side of the fibula to be gradually closed towards the fibula, and locating, when viewed from a side, an opened end portion of the opening portion in the periphery of the boundary of the fibula; and an implant bound to the tibia and connecting an upper portion and a lower portion of the opening to each other at the tibia. According to the present invention, the corrector for a bent leg can reduce a stress applied to the fibula, the cartilage and the femur.

Description

BOD-LEG REVISING STRUCTURE}

The present invention relates to a thigh correction structure that attaches an implant to the tibia of the thigh during the application of High Tibial Osteotomy (HTO) to the thigh of the human body.

Generally, the thigh of the human body is caused by at least one of congenital and acquired causes. The congenital causes may be genetic factors of parents, rickets caused by vitamin D deficiency, congenital cerebral palsy, congenital polio, or racial factors. The acquired causes may be bad postures maintained in life, bad gait habits during gait, or lack of exercise.

The thigh is divided into saddle legs (= 'X' legs) or field legs (= 'O' legs). Here, the normal leg of the human body 8 starts from the contact between the pelvis 6 and the femur 4, as shown in Fig. 1 (a), and the knee between the femur 4 and the tibia 2 starts. Gina is located along a reference line R extending vertically to the ankle (not shown in the figure) of the human body 8.

On the contrary, the long legs of the human body 8 are knees between the femur 4 and the tibia 2 from the reference line R of the normal leg as shown in Fig. 1 (b), both legs of the human body 8 It is formed by displacement (S1) inward. In addition, the saddle leg of the human body 8 is a knee between the femur 4 and the tibia 2 from the reference line R of the normal leg as shown in Fig. 1 (c) of both legs of the human body 8 It is formed by displacement (S2) outward.

When the spine (not shown in the figure) of the human body 8 is viewed from the side, the ribs (not shown in the drawing) of the human body 8 have cervical and lumbar vertebrae projecting upward and downward from the S-line. The long limb or saddle leg is only the front of the spine where the spine is excessively pushed to the front of the human body 6, or only the back of the spine where the spine is excessively pushed to the rear of the human body 8, or the spine is moved to the side of the human body 8 Excessively pushed to cause scoliosis.

These days, in order to correct the field limb or saddle leg, a High Tibial Osteotomy (HTO) is widely applied to the thigh of the human body 8. The proximal tibial fracture is performed by cutting the tibia 20 of the human body 8 and attaching a bone plate around the incision site of the tibia 2. Meanwhile, the bone plate is conventionally disclosed in Korean Patent Publication No. 10-1522158. It was disclosed as a technology.

In the prior art, the bone plate is used to stabilize bone fractures or damage, or weakened parts of the bone. To this end, the bone plate has a spatula shape and has a spatula jaw and a straight handle. The spatula jaw is located at one end of the straight handle and is fixed to the handle while facing one surface of the handle. However, when considering the shape of the tibia in the human body, the bone plate has a limitation in universal use in various parts of the tibia in the proximal tibial fracture of the tibia.

In addition, the bone plate is applied to the proximal tibial osteotomy and when used in the tibia of the human body, it receives a load from the human body and deforms itself by a static load or a fatigue load depending on the usage time or treats the tibia in a desired shape. It has difficulty in applying to the proximal tibial fracture. Thereafter, the present invention describes the correction of the field legs and the correction of the saddle legs can be developed with the same technique.

Korean Registered Patent Publication No. 10-1522158

The present invention,

It was devised to solve the conventional problems,

During the application of the proximal tibial osteotomy to the tibia of the human body, it is universally freely attached to various parts of the tibia according to the shape of the tibia,

After the application of the proximal tibial fracture, the initial shape of the human body is properly maintained even when the human body is intermittently treated, and the tibia is treated in the desired shape.

It is an object of the present invention to provide a thigh corrective structure comprising an implant suitable for minimizing the magnitude of a static load applied to other bone components located around the tibia, while under the load of the human body, after application of the proximal tibial fracture.

The thigh correcting structure according to the present invention extends from the ankle of the thigh toward the femur so as to be used to implement a high tibial osteotomy (HTO) on the thigh to correct the thigh of the human body, when viewed from the side , A fibular having a boundary line spaced apart from the cartilage under the femur in the thigh and facing the cartilage obliquely; It has a wedge-shaped opening that extends along the fibula around the fibula and contacts the cartilage, and opens from the opposite side of the fibula and gradually closes toward the fibula, when viewed from the side, around the perimeter of the fibula Tibial to position the opening end of the opening in (tibial); And an implant coupled to the tibia to connect the upper portion and the lower portion of the opening in the tibia, wherein the implant is made of a superelastic material comprising nickel (Ni) and titanium (Ti). It is characterized by rising, and rising from the opening of the tibia.

The fibula, when receiving a load from the human body through the femur, when having an acute angle between the individual sides of the isosceles and the base of the triangle while forming an isosceles of triangles in the tibia and the femur, before performing the proximal tibial osteotomy It is possible to have a small stress received after performing the stress compared.

The tibia, when viewed from the side, may position the opening end point of the opening at the same level as the boundary line at the fibula, or at a level lower than or above the boundary line.

The tibia extends more than the fibula based on the ankle of the thigh, and may have an opening of the opening below the boundary line of the fibula.

The tibia may cut the width of the tibia more than half through the opening around the fibula, and may have the opening inclined while having an opening of the opening below the boundary line of the fibula.

The tibia, when viewed perpendicular to the longitudinal direction of the implant, may be in greater contact with the implant in the upper portion than in the lower portion of the opening in the tibia.

The implant, when viewed along the extending direction of the tibia, rises from the lower portion of the opening in the tibia and forms an apex on the opening of the tibia, tilting toward the upper portion of the opening in the tibia. Can settle down.

The implant, when viewed along the extending direction of the tibia, includes a body portion, a neck portion, and a head portion that are sequentially arranged, and the body portion, the neck portion, and the head portion have a 'T' shape on the tibia, and the ' A convex curve vertically convex toward the upper side from the lower side of the T-shape and a convex curve horizontally convex at the upper side of the 'T' shape can be achieved.

When viewed along the extending direction of the tibia, the body portion and the neck portion may achieve a greater angle at the angle between the neck portion and the tibia than the angle between the body portion and the tibia.

The body portion may extend from the lower portion of the opening toward the opening in the tibia and partially overlap the opening, and may be smaller than the width of the tibia when viewed perpendicular to the extending direction of the tibia.

The neck may extend from the upper portion of the opening toward the opening in the tibia and partially overlap with the opening, and may have the same width as the body when viewed perpendicular to the extending direction of the tibia. .

The head portion may be located on the neck portion in the upper portion of the opening of the tibia, and may have a greater width than the body portion or the neck portion when viewed perpendicular to the extending direction of the tibia.

The head portion includes a left head portion, a middle head portion, and a postal head portion along the boundary line of the fibula around the fibula, and the left head portion and the postal head portion are in the middle. A predetermined angle with respect to the head portion is located along the curvature of the upper portion of the opening in the tibia to contact the tibia with the intermediate head.

The left head portion, the middle head portion and the post head portion, when viewed along the boundary line of the fibula, define an edge line at an end inclined toward the left head portion from the post head portion near the cartilage, and the implant When corresponding the edge line to the hypotenuse of the right-angled triangle extending toward the longitudinal direction of, form an acute angle of the right-angled triangle at the postal head, and under the bottom of the trapezoid extending perpendicular to the longitudinal direction of the implant. When the edge line corresponds to the other side of the trapezoid, both angles between the remaining sides of the trapezoid may be the same or different.

The body portion, the neck portion, and the head portion define a plurality of first coupling holes through the body portion, the neck portion, and the head portion, and define a second coupling hole through the body portion, and the plurality of agents 1 coupling hole, through the body portion and the neck portion and the head portion is opened in different directions from the body portion, the neck portion and the head portion, the second coupling hole is seen along the longitudinal direction of the implant At this time, the plurality of first coupling holes may have a larger diameter than the individual first coupling holes.

The body portion, the neck portion and the head portion, when viewed at right angles to the longitudinal direction of the implant, a first groove (groove) located between the two first coupling holes in the body; A second groove located between the body and the neck; And a third groove positioned between the neck and the head.

The body portion may further define a chamfering groove so as to gradually deepen while extending toward the central region of the body portion, starting from the vicinity of the neck portion individually at both edges of the body portion, along the longitudinal direction of the implant.

The hysteresis sheath curve of the implant may surround the hysteresis sheath curve of the bone around the hysteresis sheath curve of the bone in the human body when viewing a change in strain according to the stress of the human body.

The implant may include at least one of an alloy metal, a superelastic plastic, and a superelastic polymer in the superelastic material.

The thigh correcting structure according to the present invention, while applying a proximal tibial fracture to the tibia of the human body, forms an opening in the shape of a claw in the tibia, attaching an 'T'-shaped implant to the lower and upper portions of the opening in the tibia,' Proximal tibial osteotomy in the tibia of the human body by providing a body part, a neck part, and a head part from the lower side to the upper side of the T'-shaped to bend the body part and the neck vertically convexly on the tibia horizontally and convexly Depending on the shape of the tibia during the application of can be universally attached to various parts of the tibia.

An orthodontic structure according to the present invention is a candle including nickel (Ni) and titanium (Ti) in a 'T' shaped implant attached to the lower and upper portions of the opening in the tibia after application of the proximal tibial fracture to the tibia of the human body. Since the elastic material is applied to show a hysteresis curve similar to the bones of the human body, the initial shape of the implant itself is appropriate even when the human body is intermittently subjected to the load on the tibia by using the property without permanent deformation when removing the static or fatigue load from the implant. It can be maintained to treat the tibia in the desired shape.

The thigh correcting structure according to the present invention, when looking at the side of the fibula located around the tibia, the proximal tibia osteotomy is located in the tibia because the end point of the opening of the wedge-shaped opening positioned in the tibia is located around the perimeter of the fibula. After applying, it is possible to reduce the stress on the fibula, cartilage and femur by smoothly dispersing the maximum load generated at the opening end of the opening in the tibia while receiving the static load or fatigue load of the human body.

1 is a schematic diagram comparing the bone structure of a normal leg and a thigh of a human body in order to apply the prior art.
2 is a schematic diagram partially showing the bone structure of the thigh of the human body to which the thigh correction structure according to the present invention is applied.
3 is a graph showing the hysteresis characteristics of the implant in the thigh corrective structure of FIG. 2.
FIG. 4 is a front perspective view showing the implant in the thigh correction structure of FIG. 2.
5 is a rear view partially showing the implant of FIG. 4.
FIG. 6 is a rear perspective view showing the implant of FIG. 4.
7 is a front perspective view showing a first modification of the implant of FIG. 4.
8 is a front perspective view showing a second modified example of the implant of FIG. 4.
9 to 14 are schematic diagrams illustrating a method of applying the thigh correction structure according to the present invention to the bone structure of the thigh of the human body.

For a detailed description of the present invention, which will be described later, reference is made to the accompanying drawings that illustrate specific embodiments in which the present invention may be practiced. These embodiments are described in detail enough to enable those skilled in the art to practice the present invention. It should be understood that the various embodiments of the present invention are different, but need not be mutually exclusive. For example, the specific shapes, structures, and characteristics described herein can be implemented in other embodiments without departing from the spirit and scope of the invention in relation to one embodiment. In addition, it should be understood that the location or placement of individual components within each disclosed embodiment can be changed without departing from the spirit and scope of the invention. Therefore, the following detailed description is not intended to be taken in a limiting sense, and the scope of the present invention, if appropriately described, is limited only by the appended claims, along with all ranges equivalent to those claimed. In the drawings, similar reference numerals refer to the same or similar functions across various aspects, and length, area, thickness, and the like may be exaggerated for convenience.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings in order to enable those skilled in the art to easily implement the present invention.

1 is a schematic diagram comparing the bone structure of a normal leg and a thigh of a human body to apply the prior art, and FIG. 2 is a schematic view partially showing the bone structure of a thigh of a human body to which a leg correction structure according to the present invention is applied 3 is a graph showing the hysteresis characteristics of the implant in the thigh correction structure of FIG. 2.

In addition, FIG. 4 is a front perspective view showing the implant in the thigh correction structure of FIG. 2, FIG. 5 is a rear view partially showing the implant of FIG. 4, and FIG. 6 is a rear perspective view showing the implant of FIG. 4.

1 to 6, the thigh correction structure 70 according to the present invention is used to implement a high tibial osteotomy (HTO) on the thigh to correct the thigh of the human body. Here, the thigh correction structure 70 includes a fibular (10), a tibial (30), and an implant (50), as illustrated in FIG. 2.

The fibula 10, in FIG. 2, extends from the ankle of the thigh toward the femur 90, and when viewed from the side, the cartilage 80 is spaced apart from the cartilage 80 below the thigh 90 in the thigh And a boundary line (B in FIG. 12) facing the slope. The tibia 30, in FIG. 2, extends along the fibula 10 around the fibula 10 and contacts the cartilage 80.

2 and 12, the tibia 30 has a wedge-shaped opening 25 that opens from the opposite side of the fibula 10 and gradually closes toward the fibula 10, when viewed from the side , Position the opening end point (P in FIG. 12) of the opening 25 around the boundary line B of the fibula 10. More specifically, the tibia 30, when viewed from the side, has an opening at the same level as the boundary line B in the fibula 10 or a level lower than the boundary line B or a higher level than the boundary line B. The opening end point P of (25) is located.

The tibia 30, in FIG. 2, extends more than the fibula 10 based on the ankle of the thigh, and has an entrance to the opening 25 below the boundary B of the fibula 10. The tibia 30, in FIG. 2, cuts the width of the tibia 30 more than half through the opening 25 around the fibula 10, and opens the opening 25 below the boundary B of the fibula 10. The opening 25 is inclined while having an inlet of. The tibia 30, in FIG. 2, when viewed perpendicular to the longitudinal direction of the implant 50, contacts the implant 50 at a greater width than the lower portion of the opening 25 in the tibia 30 do.

On the other hand, the implant 50, in Figure 2, is coupled to the tibia 30 to connect the upper portion and the lower portion of the opening 25 in the tibia 30. Here, the tibia 30 and the implant 50 are coupled through a screw member 60. The implant 50 is made of a super-elastic material containing nickel (Ni) and titanium (Ti), and is raised as shown in FIG. 2 from the opening 25 of the tibia 30.

The implant 50 is a super-elastic material, and as shown in FIG. 3, preferably, may be nitinol made of nickel (Ni) and titanium (Ti). The hysteresis sheath curve of the implant 50 is, in FIG. 3, when viewing a change in strain according to stress while receiving a human body load, the hysteresis sheath of the bone around the hysteresis sheath curve of the human body Surround the curve. Therefore, the implant 50 exhibits an elongation similar to that of a human bone while receiving a load from the human body.

 The implant 50, in FIG. 2, as viewed along the extension direction of the tibia 30, rises from the lower portion of the opening 25 in the tibia 30 and peaks on the opening 25 of the tibia 30頂點) while forming the inclination from the tibia 30 toward the upper portion of the opening 25 is seated.

The implant 50 includes a body portion 42, a neck portion 44, and a head portion 49, which are sequentially arranged in consideration of FIGS. 2 and 4 when viewed along the extension direction of the tibia 30. do. 2 and 4, the body portion 42, the neck portion 44, and the head portion 49 have an 'T' shape on the tibia 30, and an upper portion from the lower side of the 'T' shape It forms a vertically convex curve toward the side and a horizontally convex curve from the upper side of the 'T' shape.

Here, the body portion 42 and the neck portion 44, as shown in FIG. 4, when viewed along the extension direction of the tibia 30, in the triangle (ΔA1A2A3), the body portion 42 and tibia ( The angle of the neck 44 and the tibia 30 is larger than the angle of angle 30 of α1. 2 and 4, the body portion 42 extends from the lower portion of the opening 25 toward the opening 25 in the tibia 30 and partially overlaps the opening 25, and the tibia ( When viewed at right angles to the extension direction of 30), it is smaller than the width of the tibia 30.

2 and 4, the neck 44 extends from the upper portion of the opening 25 toward the opening 25 in the tibia 30 and partially overlaps the opening 25, and the tibia 30 When viewed at right angles to the extending direction of), it has the same width as the body portion 42. 2 and 4, the head portion 49 is located on the neck portion 44 at the upper portion of the opening portion 25 of the tibia 30, and is viewed at right angles to the extending direction of the tibia 30 At this time, it has a larger width than the body portion 42 or the neck portion 44.

The head portion 49, in Fig. 5, along the boundary (B) of the fibula 10 around the fibula 10, the left (左 便) head 46 and the middle (中間) head 47 and Includes a postal head 48. The left head 46 and the postal head 48 form a predetermined angle with respect to the middle head 47 and are positioned along the curvature of the upper portion of the opening 25 in the tibia 30 to the middle head 47 ) In contact with the tibia 30.

Here, the left head 46, the middle head 47 and the post head 48, as shown in Figure 5, cartilage 80 when viewed along the boundary line B of the fibula 10 The edge line L is defined at an end that is inclined toward the left head 46 from the postal head 48 at close range.

The left-hand head 46, the middle head 47 and the post-head 48 are, in FIG. 5, hypotenuses B1, B3 of the right-angled triangle (ΔB1B2B3) extending toward the longitudinal direction of the implant 50. ), The acute angle β of the right-angled triangle ΔB1B2B3 is formed in the postal head portion 48 when the edge line L is associated with it.

The left head 46, the middle head 47, and the post head 48, in FIG. 6, a trapezoidal base (for example, a one-dot chain line that extends perpendicular to the longitudinal direction of the implant 50) C1, C4)) When matching the edge line L to the remaining sides of the trapezoid below (C1, C2, C3, C4), the angle (γ1) between the remaining sides of the trapezoid (C1, C2, C3, C4) , γ2).

In addition, the body portion 42, the neck portion 44 and the head portion 49, in Figure 4, the body portion 42, the neck 44 and the head portion 49 through a plurality of first coupling hole ( H1) is defined, and one second coupling hole H2 is defined through the body portion 42. The plurality of first coupling holes (H1), in Figure 4, through the body portion 42 and the neck 44 and the head portion 49, the body portion 42 and the neck portion 44 and the head portion 49 ) In different directions.

4, the second coupling hole H2 has a larger diameter than the individual first coupling holes H1 in the plurality of first coupling holes H1 when viewed along the longitudinal direction of the implant 50.

7 is a front perspective view showing a first modification of the implant of FIG. 4.

Referring to FIG. 7, the implant 50A has a structure similar to the implant 50 of FIG. 4. However, the body portion 42A, the neck portion 44A, and the head portion 49A in the implant 50A are two first in the body portion 42A when viewed at right angles to the longitudinal direction of the implant 50A. A first groove (41) located between the coupling hole (H1), the second groove (41) located between the body portion (42A) and the neck portion (44A), and the neck portion (44A) and head (49A) The third groove 41 located therebetween is further defined. The first to third grooves 41 add elasticity to the implant 50A.

8 is a front perspective view showing a second modified example of the implant of FIG. 4.

Referring to FIG. 8, the implant 50B has a structure similar to the implant 50 of FIG. 4. However, in the implant 50B, the body portion 42B starts at the edges of the body portion 42B individually near the neck portion 44B, depending on the length direction of the implant 50B, and the body portion 42B. The chamfering groove 43 is further defined to gradually deepen while extending toward the central region of. The chamfer groove 43 adds elasticity to the implant 50B.

9 to 14 are schematic diagrams illustrating a method of applying the thigh correction structure according to the present invention to the bone structure of the thigh of the human body.

9 to 14, in the thigh of the human body, for example, in a field leg, the tibia 30 and the femur 90 may form an isosceles triangle as shown in FIG. 9 using the cartilage 80 as a vertex. The isosceles triangle may have the same acute angle δ at the distal end of the tibia 30 and the distal end of the femur 90. In this case, the field limb may overload the cartilage 80 between the tibia 30 and the femur 90 while intermittently receiving a load from the human body, thereby causing wear of the cartilage 80 and destruction of the cartilage plate. .

Therefore, for the correction of the field limb, a proximal tibial osteotomy (HTO) may be performed using the thigh correction structure 70 on the tibia 30. The thigh correction structure 70 includes a fibula 10, a tibia 30, and an implant 50 under the thigh 90, as shown in FIG. 10, and the tibia 30 is brought into contact with the tibia 30 30) and the implant 50 may be formed as shown in FIGS. 11 and 12 by combining the screws 60.

While performing the proximal tibial fracture, a claw-shaped opening 25 is formed in the tibia 30 as shown in FIG. 11, and a plurality of screws are provided in the lower and upper portions of the opening 25 in the tibia 30. The receiving hole H3 may be formed as shown in FIG. 11. Here, the opening 25 of the tibia 30 may be positioned as shown in FIG. 12 in various embodiments around the boundary B of the fibula 10 using the bone structure of the thigh in the simulation.

That is, in the tibia 30, the opening end point P of the opening 25 is, for example, compared with the boundary line B of the fibula 10, in order to determine the position of the opening 25, the fibula 10 ) May be located at the same level as the boundary line B. In addition, in the tibia 30, the opening end point P of the opening 25 is, for example, compared with the boundary line B of the fibula 10 to determine the lower position of the opening 25, the fibula 10 ) May be located at -3.5 mm or -10 mm from the boundary (B) to below the boundary.

In addition, in the tibia 30, the opening end point P of the opening 25 is compared with, for example, the boundary B of the fibula 10 to determine the top position of the opening 25, the fibula 10 ) From the boundary line (B) to the boundary line (B) may be located at + 6mm. Therefore, in FIG. 13, before the proximal tibial fracture (HTO) -surgery, it belongs to a thigh correction structure according to a comparative example in which an opening is not formed in the tibia. After the proximal tibial fracture (HTO) -surgery, the opening end-right position, the opening end-bottom position (= -3.5 mm), the opening end-bottom position (= -10 mm), and the opening end-top position (= +6 mm) ) Belongs to the thigh correction structure according to the embodiment of the present invention.

The graph of FIG. 13 shows the tibia while receiving the self-weight condition (= 80 kgf) as a load on the human body when the isosceles triangle of FIG. 10 has an acute angle (δ) at the distal end of the tibia 30 and the distal end of the femur 90. It is the result obtained by using the simulator to apply stress to the fibula 10, cartilage 80, and ankle located around the tibia 30 along with the 30. In this case, the load of the human body is a static load in FIG. 13, but considering the movement of the human body, it can be extended to a fatigue load instead of a static load.

In the graph of FIG. 13, the fibula 10 forms a triangular isosceles in the tibia 30 and the femur 90 when a self-weight condition (= 80 kgf) is applied as a load on the human body through the femur 90. Having an acute angle (δ) between the individual sides of the isosceles side and the bottom side of the triangle, it is possible to have a smaller stress received after the performance compared to the stress received before the proximal tibial fracture. After performing the proximal tibial fracture, the small stress of the fibula 10 may reduce the pain of the patient with the thigh. Here, the stress (stree) is, as shown in Figure 14, von Mises equivalent stress (Von mises equivalent stress).

In addition, the fibula 10, as shown in Figure 13, when receiving a self-weight condition (= 80 kgf) as a load on the human body through the femur 90, the triangle in the tibia 30 and femur 90 Having an acute angle (δ) at an angle between the individual sides of the isosceles and the base of the triangle while forming an isosceles of, after performing the proximal tibial osteotomy, below the boundary line (B) of the fibula 10 or the boundary line of the fibula 10 (B) ) Has the opening end point (P) of the opening 25 of the tibia 30 at the same location as the stress applied to the boundary B of the fibula 10 against the applied stress (B) of the opening 25 of the opening 25 of the tibia 10 P) to have a small stress applied.

In addition, the tibia 30, when receiving the self-weight condition (= 80 kgf) as a load on the human body through the femur 90, the individual sides of the isosceles while forming an isosceles triangle in the tibia 30 and the femur 90 Having an acute angle (δ) at an angle between the and the base of the triangle, after performing the proximal tibial fracture, the opening end point P of the opening 25 of the tibia 30 is provided below the boundary line B of the fibula 10 By providing the end point P of the opening 25 of the tibia 30 on the boundary B of the fibula 10 compared to the applied stress, the applied stress may be small.

Here, the cartilage 80 and the ankle also have a phenomenon similar to the fibula 10 or tibia 30.

10; Fibula, 25; Opening
30; tibia. 50; Implant
60 thread member, 70; Thigh correction structure
80; Cartilage, 90; femur

Claims (19)

In the thigh correction structure that implements a High Tibial Osteotomy (HTO) on the thigh to correct the thigh of the human body,
A fibular extending from the ankle of the thigh toward the femur, and viewed from the side, spaced apart from the cartilage below the thigh in the thigh and facing obliquely with the cartilage;
It has a wedge-shaped opening that extends along the fibula around the fibula and contacts the cartilage, and opens from the opposite side of the fibula and gradually closes toward the fibula, and when viewed from the side, around the perimeter of the fibula Tibial to position the opening end of the opening in (tibial); And
It is coupled to the tibia and includes an implant connecting the upper portion and the lower portion of the opening in the tibia,
The implant is made of a superelastic material containing nickel (Ni) and titanium (Ti), and a thigh correction structure that rises from the opening of the tibia.
According to claim 1,
The fibula, when receiving a load from the human body through the femur, when having an acute angle between the individual sides of the isosceles and the base of the triangle while forming an isosceles triangle of the tibia and the femur, the proximal tibia fracture A tread correction structure that has a smaller stress received after the performance than the stress received before the performance.
According to claim 1,
The tibia, when viewed from the side, is positioned at the same level as the boundary line at the fibula, or at a level lower than or above the boundary line, or at a level higher than the boundary line.
According to claim 1,
The tibia extends more than the fibula based on the ankle of the thigh, and the orthodontic structure having an entrance to the opening below the boundary line of the fibula.
According to claim 1,
The tibia,
Cut the width of the tibia more than half through the opening around the fibula,
A thigh correction structure having an opening of the opening below the boundary line of the fibula and slanting the opening.
According to claim 1,
The tibia,
When viewed perpendicular to the longitudinal direction of the implant,
A thigh correction structure in contact with the implant at a greater width in the upper portion than in the lower portion of the opening in the tibia.
According to claim 1,
The implant,
When looking along the extending direction of the tibia,
A thigh correction structure that rises from the lower portion of the opening in the tibia and forms an apex on the opening of the tibia, while being seated inclined toward the upper portion of the opening in the tibia.
According to claim 1,
The implant,
When looking along the extending direction of the tibia,
It includes a body portion and a neck portion and a head portion that are sequentially arranged,
The body portion, the neck portion, and the head portion have a 'T' shape on the tibia and form a vertical convex curve from the lower side of the 'T' shape to the upper side, and the upper side of the 'T' shape Tread correction structures that form horizontally convex bends.
The method of claim 8,
The body portion and the neck portion,
When looking along the extending direction of the tibia,
A thigh correction structure that forms a greater angle at the angle between the neck and the tibia than the angle between the body and the tibia.
The method of claim 8,
The body portion,
Extending from the lower portion of the opening toward the opening in the tibia partially overlapping the opening,
A thigh correction structure smaller than the width of the tibia when viewed perpendicular to the extension direction of the tibia.
The method of claim 8,
The neck portion,
The tibia extends from the upper portion of the opening toward the opening and partially overlaps the opening,
A thigh correction structure having the same width as the body when viewed at a right angle to the extending direction of the tibia.
The method of claim 8,
The head portion,
Located on the neck in the upper portion of the opening of the tibia,
A thigh correction structure having a greater width than the body portion or the neck portion when viewed at a right angle to the extending direction of the tibia.
The method of claim 8,
The head portion includes a left head portion, a middle head portion, and a postal head portion along the boundary line of the fibula around the fibula,
The left head portion and the postal head portion form a predetermined angle with respect to the middle head and are positioned along the curvature of the upper portion of the opening in the tibia to contact the tibia with the middle head.
The method of claim 13,
The left head portion, the middle head portion and the postal head portion,
An edge line defined at an end inclined toward the left head from the postal head near the cartilage when viewed along the boundary line of the fibula,
When the edge line corresponds to the hypotenuse of the right triangle extending toward the longitudinal direction of the implant, an acute angle of the right triangle is formed at the postal head,
A thigh correction structure having the same or different angles between the remaining sides of the trapezoid when the edge line is mapped to the remaining sides of the trapezoid under the bottom of the trapezoid extending perpendicular to the longitudinal direction of the implant.
The method of claim 8,
The body portion, the neck portion and the head portion,
A plurality of first coupling holes are defined through the body, the neck, and the head,
A second coupling hole is defined through the body portion,
The plurality of first coupling holes, through the body portion and the neck portion and the head portion, are opened toward different directions from the body portion, the neck portion and the head portion,
The second coupling hole is a thigh correction structure having a larger diameter than an individual first coupling hole in the plurality of first coupling holes when viewed along the longitudinal direction of the implant.
The method of claim 15,
The body portion, the neck portion and the head portion,
When viewed perpendicular to the longitudinal direction of the implant,
A first groove located between two first coupling holes in the body;
A second groove located between the body and the neck; And
A thigh correction structure further defining a third groove located between the neck and the head.
The method of claim 15,
The body portion,
According to the longitudinal direction of the implant,
A thigh correcting structure further defining a chamfer groove so as to gradually deepen while starting toward the central region of the body portion, starting from close to the neck portion at both edges of the body portion individually.
According to claim 1,
The hysteresis curve of the implant,
When looking at the change in strain according to the stress of the human body,
A thigh correction structure surrounding the hysteresis curve of the bone around the hysteresis curve of the bone in the human body.
According to claim 1,
The implant is a thigh correction structure comprising at least one of an alloy metal, a superelastic plastic, and a superelastic polymer in the superelastic material.

Images