JP2016152861A - Treatment tool for femur fracture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a treatment tool for a femur fracture which can better treat a proximal femur fracture even when a fracture occurs in the rear wall of the trochanteric region of the femur.SOLUTION: A treatment tool 1 includes: an intramedullary nail 2 which is inserted into the intramedullary cavity of a femur 10; a connection tool 3 which has a screw 30 on the tip part side and which penetrates the intramedullary nail 2 and is screwed obliquely upward toward a head 13 of the femur 10; a support plate 4 which is put on a rear wall 14 of a trochanteric region 12 of the femur 10; and a fixing tool 5 which fixes the support plate 4 to the rear wall 14 of the trochanteric region 12 of the femur 10. The support plate 4 has a bent shape through a bent part 40 and includes: a first part 41 and a second part 42 between which the bent part 40 is sandwiched as a boundary; and a first through-hole 43 which is formed in the bent part 40 and into which the connection tool 3 can be inserted. The first part 41 and the second part 42 are formed to cover at least a part of right and left side walls 16, 17 which extend from the rear wall 14 of the trochanteric region 12 of the femur 10, respectively.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a treatment tool for treating a fracture of a proximal femur.

  As a treatment method for treating a fracture of the proximal femur, a fixing operation method (intramedullary fixation method) using an intramedullary nail is conventionally known.

  In the intramedullary fixation method, a metal intramedullary nail is inserted into the intramedullary cavity from the proximal end of the femur, and the intramedullary nail is fixed to the femur with a fixing bolt. Then, the fractured bone pieces are fixed by driving a lag screw obliquely upward toward the bone head so as to penetrate the intramedullary nail (see, for example, Patent Document 1).

Republished Patent No. 2010-050252

  However, in the conventional intramedullary fixation method described above, when a fracture occurs in the rear wall of the trochanter and the trochanter is separated into left and right bone fragments, the left and right bone fragments are separated during treatment. The trochanter may be held in a state. In this case, the fusion between the bone fragments is inhibited, so that the conventional intramedullary fixation method has a problem that the fracture of the trochanter part of the femur cannot be treated well.

  The present invention has been made in order to solve the above-described problems, and even when a fracture has occurred in the rear wall of the trochanter of the femur, the femur capable of successfully treating the fracture of the proximal femur It aims at providing the treatment tool for bone fractures.

  The above object of the present invention is a treatment tool for treating a fracture of the proximal part of the femur, comprising an intramedullary nail inserted into the intramedullary cavity of the femur and a screw on the distal end side, A connector that penetrates the intramedullary nail and is screwed obliquely upward toward the femoral head, a support plate applied to the rear wall of the trochanter of the femur, and the support plate as the trochanter of the femur The support plate has a bent shape or a bendable shape via the bent portion, and the left and right first portions and the first portion with the bent portion as a boundary. 2 parts, and a first through hole into which the connector formed in the bent part can be inserted, each of the first part and the second part being from the rear wall of the trochanter part of the femur The thigh formed so as to be able to cover at least part of the left and right side walls It is accomplished by treatment instrument for fractures.

  In the treatment tool configured as described above, the fixing tool penetrates the intramedullary nail so as to extend obliquely upward above the connection tool, and the support plate is formed above the first through hole. Preferably, the fixture includes a second through hole into which the fixture can be inserted, and the fixture presses the support plate against the rear wall of the femur, so that the support plate is fixed to the rear wall of the femur. In this case, it is more preferable that the fixing device is formed so that the tip can reach the femoral head.

  Another object of the present invention is a treatment tool for treating a fracture of the proximal part of the femur, which has an intramedullary nail inserted into the intramedullary cavity of the femur and a screw on the distal end side. A connecting tool that penetrates the intramedullary nail and is screwed obliquely upward toward the head of the femur, and a first through hole into which the connecting tool can be inserted, and is applied to the rear wall of the trochanter part of the femur A support plate that is peeled off, wherein the support plate is formed such that the first through hole is formed in an elliptical shape, and is bent or bendable with respect to the major axis of the first through hole. This is achieved by a femoral fracture treatment device.

  Another object of the present invention is a treatment tool for treating a fracture of the proximal part of the femur, which has an intramedullary nail inserted into the intramedullary cavity of the femur and a screw on the distal end side. A first connector that penetrates the intramedullary nail and is screwed obliquely upward toward the femoral head; and a screw on the distal end side, penetrates the intramedullary nail and faces the femoral head. On the rear wall of the trochanter part of the femur, the second connecting tool screwed obliquely upward, and the first and second through holes into which the first connecting tool and the second connecting tool can be inserted, respectively. And a support plate to be applied, wherein the support plate is bent at a straight line connecting the center of the first through hole and the center of the second through hole, or is formed to be bendable. Achieved with a therapeutic tool.

  Another object of the present invention is a treatment tool for treating a fracture of the proximal part of the femur, which has an intramedullary nail inserted into the intramedullary cavity of the femur and a screw on the distal end side. A first connector that penetrates the intramedullary nail and is screwed obliquely upward toward the femoral head; and a screw on the distal end side, penetrates the intramedullary nail and faces the femoral head. On the rear wall of the trochanter part of the femur, the second connecting tool screwed obliquely upward, and the first and second through holes into which the first connecting tool and the second connecting tool can be inserted, respectively. A support plate to be applied, wherein the support plate has a length in a direction orthogonal to a straight line connecting the center of the first through hole and the center of the second through hole, and the first through hole and The thigh having at least a portion longer than the distance between the centers of the second through holes It is accomplished by treatment instrument for fractures.

  In the treatment tool having the above-described configuration, it is preferable that the second connection tool is a fixing tool that fixes the support plate to the rear wall of the trochanter portion of the femur. In this case, it is more preferable that the second connector is shorter than the first connector.

  In any of the treatment devices described above, the support plate can reach the topmost position where at least a part of the upper edge protrudes most to the side of the rear wall of the trochanter of the femur. It is preferable to be formed. The support plate is preferably made of a titanium alloy.

  According to the present invention, since the support plate holds the trochanter part of the femur from both left and right sides, the fracture of the proximal part of the femur is good even if a fracture occurs in the rear wall of the trochanter part of the femur Can be treated.

It is a perspective view showing the state where the treatment implement concerning one embodiment of the present invention was attached to the right femur. It is a rear view which shows the state by which the treatment tool which concerns on one Embodiment of this invention was attached to the right femur. It is a front view of a right femur. In FIG. 3, only the support plate of the treatment tool is displayed. It is a rear view of a right femur. In FIG. 4, only the support plate of the treatment tool is displayed. It is a front view of an intramedullary nail. In addition, in FIG. 5, a connection tool, a fixing tool, and a fixing bolt are also displayed. It is a right view of an intramedullary nail. It is a left view of a support plate. It is a front view of a support plate. It is a right view of a support plate. It is the cut part end elevation cut | disconnected in the part which has the maximum width of a support plate.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 and 2 show a state in which a femoral fracture treatment device 1 according to one embodiment of the present invention is attached to a femur (right femur in the illustrated example). 3 and 4 are explanatory views showing names of respective parts of the femur (right femur in the illustrated example). 3 and 4, only the support plate 4 of the treatment instrument 1 is displayed.

  The treatment tool 1 is used for treatment of a proximal femoral fracture such as a trochanteric fracture of the femur 10, and includes a hollow intramedullary nail 2 inserted into the intramedullary cavity of the femur 10, and a femur A connector 3 (also referred to as a “first connector”) 3 that is inserted obliquely upward toward the bone head 13, a support plate 4 applied to the rear wall 14 of the trochanter 12 of the femur 10, and a support At least a fixture (also referred to as a “second connector”) 5 for fixing the plate 4 to the rear wall 14 is provided. The treatment tool 1 further includes a fixing bolt 6 (shown in FIG. 5) for fixing the intramedullary nail 2 to the femur body 11 of the femur 10. Each component of the treatment tool 1 is formed of a biocompatible material such as a titanium alloy or stainless steel. Note that the rear wall 14 refers to a portion of the trochanter 12 of the femur 10 that protrudes in a convex manner on the side opposite to the head 13.

  As shown in FIGS. 5 and 6, the intramedullary nail 2 includes a proximal portion 20, a tapered portion 21, and a distal portion 22 in order from the upper side. The proximal portion 20 is formed in a substantially cylindrical shape, and an opening at the upper end is closed with a cap 23 so as to be freely opened and closed. Although not shown in the drawing, the proximal portion 20 is formed with a cap hole to which the cap 23 is attached and a connecting screw hole having a smaller diameter than the cap hole from the opening side of the upper end. On the inner peripheral surface of the cap hole, a female screw (not shown) to which a male screw (not shown) formed on the outer peripheral surface of the cap 23 is screwed is formed. A connection screw (not shown) for connecting the intramedullary nail 2 and an insertion device (not shown) for inserting the intramedullary nail 2 into the intramedullary cavity of the femur 10 is provided on the inner peripheral surface of the connection screw hole. A female screw (not shown) to which a screw (not shown) is screwed is formed.

  A first insertion hole 24 into which the connection tool 3 is inserted is formed in the proximal portion 20. The first insertion hole 24 passes through the proximal portion 20 so as to extend obliquely upward, whereby the first insertion hole 24 obliquely upwards the connection tool 3 toward the head 13 of the femur 10. Can be guided to. Further, a second insertion hole 25 having a smaller diameter than the first insertion hole 24 and having the fixture 5 inserted therein is formed in the proximal portion 20 above the first insertion hole 24. The second insertion hole 25 also penetrates the proximal portion 20 so as to extend obliquely upward, whereby the second insertion hole 25 obliquely upwards the fixing device 5 toward the head 13 of the femur 10. Can be guided to.

  The tapered portion 21 is formed in a substantially cylindrical shape, is integrally connected to the proximal portion 20, and is formed with a small diameter toward the lower side. The taper portion 21 is connected to the proximal portion 20 such that its axis (center line) is inclined at a slight angle (for example, about 4 degrees) with respect to the axis (center line) of the proximal portion 20.

  The distal portion 22 is formed in a substantially cylindrical shape with a slightly tapered lower end, and is continuous with the tapered portion 21. The distal portion 22 is connected to the tapered portion 21 so that its axis (center line) is collinear with the axis (center line) of the tapered portion 21.

  The distal portion 22 has one or a plurality (two in this embodiment) of fixing holes 26 into which the fixing bolts 6 are inserted. The fixing hole 26 penetrates the distal portion 22 so as to extend substantially horizontally, and thus the fixing hole 26 can guide the fixing bolt 6 toward the femur 10 substantially horizontally.

  As shown by a fracture line L1 in FIG. 2, the connection tool 3 includes a fracture piece (the head 13 of the femur 10 in the present embodiment) separated by the fracture and the femur 10 (the trochanter 12 in the present embodiment). It is for fixing to. As shown in FIGS. 2 and 5, the connection tool 3 is formed in an elongated substantially columnar shape or substantially cylindrical shape as a whole. The diameter of the connection tool 3 as a whole is slightly smaller than the diameter of the first insertion hole 24 and the diameter of a first through hole 43 of the support plate 4 to be described later, and the connection tool 3 is inside the first insertion hole 24 and the first through hole. The inside of the hole 43 can be slid. A screw 30 is formed on the outer peripheral surface on the distal end side of the connection tool 3. The distal end side of the connection tool 3 is screwed into the bone head 13 by the screw 30, and the separated bone head 13 (fracture piece) is engaged with the connection tool 3 and held by the connection tool 3, whereby the bone head 13 (fracture piece) ) Can be fixed to the trochanter 12 (femur 10). In addition, as such a connection tool 3, a well-known lag screw etc. can be illustrated.

  As shown in FIGS. 7 to 10, the support plate 4 has a plate shape having a predetermined thickness, and has a bent shape that is bent left and right via a bent portion 40. Therefore, the support plate 4 includes left and right first portions 41 and second portions 42 with the bent portion 40 as a boundary. In the support plate 4, the bent portion 40 hits the convex top portion 15 on the rear wall 14 of the trochanter portion 12 of the femur 10, and the left and right first portions 41 and the second portion 42 are separated from the rear wall 14. Around the left and right side walls 16 and 17, the rear wall 14 and a part of the side walls 16 and 17 are arranged so as to surround them. Note that the side walls 16 and 17 indicate portions of the trochanter 12 of the femur 10 that extend from the rear wall 14 to the neck 18.

  The support plate 4 is formed with a first through hole 43 into which the connector 3 can be inserted into the bent portion 40. A second through hole 44 into which the fixture 5 can be inserted is formed above the first through hole 43 of the support plate 4. The second through hole 44 has a smaller outer shape than the first through hole 43. The first through-hole 43 and the second through-hole 44 are inserted in the connecting tool 3 and the fixing tool 5 obliquely upward, so that the outer shape of the first through-hole 43 and the second through-hole 44 is in the vertical direction ( It is formed in an elliptical shape with the major axis extending in the vertical direction). In addition, it does not necessarily need to be an exact elliptical shape, and may be a substantially elliptical shape as long as it is a vertically long shape and has a curved outline. In other words, the support plate 4 is bent with a long axis of the elliptical first through hole 43, more specifically, a straight line L connecting the center C1 of the first through hole 43 and the center C2 of the second through hole 44 as a boundary. It has a cross section of shape.

  Although details will be described later, since the fixing tool 5 may be inserted into the bone head 13 in the same manner as the connection tool 3, the center C1 of the first through-hole 43 and the first one are prevented from contacting each other in the bone head 13. The center-to-center distance H from the center C2 of the two through holes 44 is preferably, for example, 0.8 cm to 1.5 cm. On the other hand, as shown in FIG. 8, when the support plate 4 is viewed from the vertical direction of the first through hole 43, the support plate 4 has a center C <b> 1 of the first through hole 43 and a center C <b> 2 of the second through hole 44. It is preferable for the reliable protection of the trochanter part 12 to have at least a portion whose length (width) in a direction orthogonal to the straight line C connecting the two is longer than the center-to-center distance H. For example, the maximum width D of the support plate 4 is preferably 1.0 cm or more, and more preferably 2.0 cm or more.

  The shape of the support plate 4 is not particularly limited, but the trochanter 12 can be pressed from both the left and right sides of the trochanter 12 of the femur 10 by the first portion 41 and the second portion 42. It has become a shape. Specifically, the first portion 41 and the second portion 42 are formed so as to be able to cover at least a part of the left and right side walls 16, 17 connected to the rear wall 14 of the trochanter 12 of the femur 10. In other words, the lengths L1 and L2 of the first portion 41 and the second portion 42 are such that the tip portions of the first portion 41 and the second portion 42 can extend to at least a part of the left and right side walls 16 and 17. Length is set.

  For example, the distal end portions of the first portion 41 and the second portion 42 exceed the side walls 16 and 17 of the femur 10 shown in FIGS. 2 and 3, and the intertrochanteric ridge 28 and the back surface on the front side of the femur 10. If the trochanter part 12 extends to the intertrochanteric line 29 on the side, the trochanter part 12 can be sufficiently sandwiched and pressed by the first part 41 and the second part 42 of the support plate 4. Can be supported. Note that the distal ends of the first portion 41 and the second portion 42 do not need to extend to the intertrochanteric ridge 28 or the intertrochanteric line 29 of the femur 10, for example, the lower position of the greater trochanter 19 (the thigh Even if the front side of the bone 10 extends to the rough gluteal muscle surface 32) shown in FIG. 2, the trochanter 12 can be firmly pressed by the first portion 41 and the second portion 42 of the support plate 4. The trochanter 12 can be sufficiently supported. In the present embodiment, the first portion 41 covering the side wall 16 on the front side of the femur 10 of the support plate 4 extends to the intertrochanteric ridge 28 of the femur 10, while the femoral 10 The tip of the second portion 42 covering the side wall 17 on the back side extends to a position below the greater trochanter 19 of the femur 10.

  Further, the support plate 4 effectively holds the trochanter part 12 by holding the trochanter part 12 of the femur 10 between the first part 41 and the second part 42 from the left and right sides as much as possible. Can be supported. Therefore, at least a part of the upper edge of the support plate 4 can reach at least the height of the top 15 </ b> A that protrudes most laterally at the top 15 of the rear wall 14 of the trochanter 12 of the femur 10. It is preferable to be formed as described above.

  In this embodiment, the shape of the support plate 4 is a shape in which the left and right first portions 41 and the second portion 42 are asymmetrical to the left and right, but the left and right first portions 41 and the second portion 42 are symmetric. The shape which becomes may be sufficient.

  Further, the shape of the support plate 4 is preferably such that the first portion 41 and the second portion 42 do not cover the greater trochanter 19 or the lesser trochanter 27 of the femur 10. Thereby, when attaching the support plate 4 to the trochanter part 12 of the femur 10, it can make it easy to fit. Further, in order to further fit the support plate 4 to the trochanter part 12 of the femur 10, the shape of the support plate 4 may be one of the rear wall 14 and the left and right side walls 16, 17 of the trochanter part 12 of the femur 10. It is preferable that the shape conforms to the shape of the surface of the part as much as possible.

  As shown in FIGS. 2 and 5, the fixture 5 is inserted into the femur 10 so as to penetrate the intramedullary nail 2. In the present embodiment, the length of the fixture 5 is set so that the tip reaches the head 13 of the femur 10 as with the connector 3. Note that the length of the fixture 5 is shorter than the length of the connector 3. The fixture 5 is formed in an elongated substantially columnar shape or substantially cylindrical shape as a whole. A screw head 51 is provided on the proximal end side, and a screw 50 is formed on the outer peripheral surface on the distal end side. Has been. The distal end side of the fixture 5 is screwed into the bone head 13 by the screw 50 and the separated bone head 13 (fracture piece) is engaged with the fixture 5, so that the bone head 13 (fracture piece) is also held by the fixture 5. Is done. Thus, the separated bone head 13 (fracture piece) is held by the fixture 5 together with the connector 3, thereby preventing the connector 3 from rotating in the first insertion hole 24. Therefore, the bone head 13 (fracture piece) separated during the treatment can be prevented from rotating with respect to the trochanter 12 (femur 10).

  The diameter of the fixture 5 is slightly smaller than the diameter of the second insertion hole 25 and the diameter of the second through hole 44 of the support plate 4 as a whole, except for the screw head 51. While the screw head 51 can be inserted into the second through hole 44, the diameter of the screw head 51 is larger than the diameter of the second through hole 44. As a result, when the fixing tool 5 is screwed into the femur 10, the screw head 51 presses the support plate 4 against the rear wall 14 of the femur 10, so that the support plate 4 is fixed to the rear wall 14 of the femur 10. can do.

  Note that the fixing device 5 is not necessarily used for two purposes of rotating the separated bone head 13 (fracture piece) and fixing the support plate 5, and may be used only for fixing the support plate 4. In this case, the length of the fixture 5 can be further shortened so that the tip does not reach the head 13 of the femur 10. However, in this case, the rotation of the connection tool 3 in the first insertion hole 24 is prevented by fixing the base end side of the connection tool 3 in the first insertion hole 24 of the intramedullary nail 2 so as not to rotate. It is preferable to prevent. Specifically, a plurality of grooves 31 extending in the longitudinal direction are formed at equal intervals along the circumferential direction on the outer peripheral surface on the proximal end side of the connector 3. And although illustration is abbreviate | omitted, for example, the processus | protrusion extended below is provided in the surface of the side inserted in the proximal part 20 of the cap 23, and it connects by engaging the said processus | protrusion with the groove | channel 31 of the connector 3. The rotation of the tool 3 in the first insertion hole 24 can be prevented. Thereby, it can prevent that the fracture piece (bone head 13) isolate | separated during the treatment rotates with respect to the trochanter part 12. FIG.

  Next, an operation procedure in a surgical operation using the treatment tool 1 according to the present embodiment will be briefly described. First, the intramedullary nail 2 is attached to a conventionally known insertion instrument (not shown) via a connecting screw (not shown). Then, the skin near the femur 10 is incised, a perforation is formed in the femur 10 with a drill (not shown), and the intramedullary nail 2 is inserted into the intramedullary cavity using an insertion device.

  Next, the skin near the rear wall 14 of the trochanter 12 of the femur 10 is incised, and the support plate 4 is applied to the rear wall 14 of the trochanter 12 of the femur 10 through the second through hole 44. The support plate 4 is fixed to the rear wall 14 by inserting the fixture 5 into the femur 10 so as to pass through the second insertion hole 25 of the intramedullary nail 2. Then, the connector 4 is inserted toward the head 13 so as to pass through the first insertion hole 24 of the intramedullary nail 2 through the first through hole 43 of the support plate 4. Finally, after fixing the intramedullary nail 2 by inserting the fixing bolt 6 into the femoral body 11 of the femur 10 through the fixing hole 26 of the intramedullary nail 2, the cap 23 is proximal to the intramedullary nail 2. It attaches to the cap hole (not shown) of the part 20, and cut | disconnects an incision part.

  According to the treatment tool 1 according to the present embodiment, the support plate 4 is applied to the rear wall 14 of the trochanter portion 12 of the femur 10, and the trochanter portion 12 is formed by the first portion 41 and the second portion 42 of the support plate 4. Can be pressed from both the left and right sides. Therefore, as shown by the fracture line L2 in FIG. 1, even if a fracture occurs in the rear wall 14 of the trochanter 12 and the trochanter 12 is separated into the left and right bone fragments 12A and 12B, the bone fragment 12A , 12B are held in contact with each other. Therefore, during treatment, the bone pieces 12A and 12B of the trochanter part 12 separated by the fracture are not held in a largely separated state until they are joined, and the fusion between the bone pieces 12A and 12B is inhibited. Therefore, the fracture of the proximal part of the femur can be treated well.

  As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the said embodiment, A various change is possible unless it deviates from the meaning. For example, in the above-described embodiment, the support plate 4 has a shape that is bent to the left and right via the bent portion 40, but may be bent so that it can be bent in accordance with the shape of the femur. Good. Moreover, it is good also as a shape which can bend | fold the support plate 4 to the right and left via the bending part 40 because the bending part 40 comprises a hinge.

  Moreover, in the said embodiment, the screw 50 is provided in the front-end | tip part side of the fixing tool 5, and the support plate 4 is being fixed to the rear wall 14 of the trochanter part 12 by screwing the screw 50 in the femur 10. FIG. On the other hand, without providing the screw 50, the fixing tool 5 is provided with a protrusion that can be projected and retracted from the outer peripheral surface, and a groove portion in which the protrusion can be engaged and disengaged is formed in the second insertion hole 25 of the intramedullary nail 2. The support plate 4 may be fixed to the rear wall 14 of the trochanter 12 by engaging the protrusion of the fixing member 5 with the groove.

  Moreover, in the said embodiment, although the fixing tool 5 is an elongate substantially columnar shape or substantially cylindrical shape which penetrates the intramedullary nail 2, a simple volt | bolt may be sufficient. In this case, a bolt hole for inserting a bolt is formed at an appropriate position on the peripheral edge of the support plate 4, and the bolt is screwed into the femur 10 through the bolt hole, whereby the support plate 4 is inserted into the trochanter portion 12. It can be fixed to the rear wall 14. In this case, the fixture 5 in the above embodiment can be used only for the purpose of preventing rotation of the fracture piece (bone head 13) separated from the trochanter 12 (femur 10). In this case, in the fixture 5 of the above-described embodiment, the diameter of the screw head 51 on the base end side is made smaller to be slightly smaller than the diameter of the second through hole 44 of the support plate 4. Can do.

  Moreover, although the treatment tool 1 attached to a right femur is demonstrated in the said embodiment, the treatment tool 1 can also be attached to a left femur. The shape of the support plate 4 for the right femur shown in FIGS. 7 to 9 is such that the first portion 41 on the left side of the bent portion 40 is longer than the second portion 42 on the right side. (L1> L2) However, when the treatment tool 1 is attached to the left femur, the shape of the support plate 4 is different from that for the right femur shown in FIGS. The right second portion 42 of 40 is longer than the left first portion 41 (L2> L1), that is, for the right femur shown in FIGS. It is preferable that the left and right are reversed (the shape of the right femur is reflected in a mirror).

DESCRIPTION OF SYMBOLS 1 Treatment tool 2 Intramedullary nail 3 Connection tool 4 Support plate 5 Fixation tool 30 Screw 40 Bending part 41 1st part 42 2nd part 43 1st through-hole 44 2nd through-hole

Claims (10)

A treatment tool for treating a fracture of the proximal femur,
An intramedullary nail inserted into the intramedullary space of the femur;
A connector having a screw on the distal end side, penetrating the intramedullary nail and screwed obliquely upward toward the femoral head; and
A support plate applied to the posterior wall of the trochanter of the femur;
A fixture for fixing the support plate to the rear wall of the trochanter part of the femur,
The support plate has a bent shape or a bendable shape via a bent portion, and the left and right first and second portions with the bent portion as a boundary, and the bent portion formed on the bent portion. A first through hole into which the connection tool can be inserted,
The therapeutic device for femoral fracture, wherein the first portion and the second portion are formed so as to be able to cover at least a part of the left and right side walls continuous from the rear wall of the trochanter portion of the femur. The fixture penetrates the intramedullary nail so as to extend obliquely upward above the connector;
The support plate includes a second through-hole into which the fixture formed above the first through-hole can be inserted,
The therapeutic tool for femoral fracture according to claim 1, wherein the support plate is fixed to the rear wall of the femur by pressing the support plate against the rear wall of the femur.   The treatment tool for femoral fracture according to claim 2, wherein the fixing tool is formed so that a tip portion can reach a femoral head. A treatment tool for treating a fracture of the proximal femur,
An intramedullary nail inserted into the intramedullary space of the femur;
A connector having a screw on the distal end side, penetrating the intramedullary nail and screwed obliquely upward toward the femoral head; and
A first through hole into which the connector can be inserted, and a support plate applied to the rear wall of the trochanter part of the femur,
The support plate is a therapeutic tool for femoral fractures in which the first through hole is formed in an elliptical shape, and is bent or bendable with the long axis of the first through hole as a boundary. A treatment tool for treating a fracture of the proximal femur,
An intramedullary nail inserted into the intramedullary space of the femur;
A first connector having a screw on the distal end side, penetrating through the intramedullary nail and screwed obliquely upward toward the femoral head;
A second connector having a screw on the distal end side, penetrating through the intramedullary nail and screwed obliquely upward toward the femoral head;
Comprising a first through hole and a second through hole into which the first connector and the second connector can be inserted, respectively, and a support plate applied to the rear wall of the trochanter part of the femur,
The support plate is a therapeutic tool for a femoral fracture that is bent or bendable with respect to a straight line connecting the center of the first through hole and the center of the second through hole. A treatment tool for treating a fracture of the proximal femur,
An intramedullary nail inserted into the intramedullary space of the femur;
A first connector having a screw on the distal end side, penetrating through the intramedullary nail and screwed obliquely upward toward the femoral head;
A second connector having a screw on the distal end side, penetrating through the intramedullary nail and screwed obliquely upward toward the femoral head;
Comprising a first through hole and a second through hole into which the first connector and the second connector can be inserted, respectively, and a support plate applied to the rear wall of the trochanter part of the femur,
The support plate has a length in a direction orthogonal to a straight line connecting the center of the first through hole and the center of the second through hole, based on a distance between the centers of the first through hole and the second through hole. A treatment tool for a femoral fracture having at least a long part.   The therapeutic tool for femoral fracture according to claim 5 or 6, wherein the second connecting tool is a fixing tool for fixing the support plate to the rear wall of the trochanter portion of the femur.   The said 2nd connection tool is a treatment tool for femoral fractures in any one of Claims 5-7 shorter than the said 1st connection tool.   The said support plate is formed so that at least one part of an upper edge can reach | attain the position of the topmost part which most protruded to the side of the rear wall of the trochanter part of a femur. The therapeutic tool for femoral fractures described in 1.   The said support plate consists of titanium alloys, The therapeutic tool for femoral fractures in any one of Claims 1-9.