JP2005334139A - Bone fracture treatment method for animal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simply and precisely perform a bone reset surgery for an animal in a method for treating the bone fracture of the animal. <P>SOLUTION: The fracture treatment of the animal is performed by a step of inserting a nail 2 into the marrow of the segmented bone parts A and B, a step of connecting a tool 4 to the nail 2, a step of connecting one bone part A to a traction slider 5 to be fitted to the tool 4 slidably in parallel to the nail 2, a step of connecting the other bone part B to the tool 4 and the nail 2, a step of pulling one bone part A by the traction slider 5, separating the bone parts A and B to the positions before the fracture and resetting them, and a step of fixing the respective bone parts A and B to the nail 2 with a screw 8. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a method of treating fractures in animals.

  When an animal's arm, leg, or the like is broken, the arm contracts due to the contraction force of the muscle. To treat a fracture with this contraction, the soft tissue is incised, a nail is inserted into the bone marrow from one end of the bone to the other, and the fractured leg or the like is pulled by a pulling device or a human hand before the fracture. The bones on both sides of the fracture line are fixed to the nail by inserting a screw from the side of the bone toward the nail and screwing the screw into the hole of the nail. Thereafter, the incision is sutured and waiting for regeneration of the tissue at the fracture.

  However, according to the conventional fracture treatment method for animals, when towing after inserting a nail into a fractured bone, if the fracture part is a relatively large part such as a leg of a large animal, the existing pulling device is used. Although it can be towed, it is difficult to use the towing device when the fracture site such as a leg of a small animal is relatively small. Conventionally, in such a case, the animal must be fixed to the nail while manually pulling the leg of the animal, the operation becomes complicated, and accurate alignment between the nail and the bone may be difficult.

  In addition, when treating fractures, it is necessary to pass a piercing wire, screw, etc. through the bone toward the nail hole, but the operator cannot see the hole in the nail at that time, so drilling becomes inaccurate. Easy and complicated surgery.

  Therefore, an object of the present invention is to provide an animal fracture treatment method that can eliminate the above-mentioned problems.

  In order to solve the above-mentioned problem, the invention according to claim 1 includes a step of inserting the nail (2) into the bone marrow of the divided bone part (A, B), and a jig (4) in the nail (2). A step of connecting one bone portion (A) to a traction slider (5) attached to the jig (4) so as to be slidable in parallel with the nail (2), a jig (4) and a nail ( 2) connecting the other bone part (B) to the other, pulling one bone part (A) by the traction slider (5), separating the bone parts (A, B) to the position before the fracture, An animal fracture treatment method comprising a reduction step and a step of fixing each bone part (A, B) to the nail (2) with a screw (8) is adopted.

  Further, the invention according to claim 2 is a step of inserting a nail (2) in which a plurality of screw holes (1) are formed at predetermined intervals into the bone marrow of the divided bone parts (A, B); The jig (4) having a plurality of guide holes (3a, 3b) is connected to the nail (2), and the guide holes (3a, 3b) are directly opposed to the screw holes (1) of the nail (2). A first insertion wire (6) is mounted on a pulling slider (5) attached to a jig (4) so as to be slidable parallel to the nail (2), and the first insertion wire (6 ) In one bone part (A) and the second insertion wire (7) through the screw hole (1) of the nail (2) from the guide hole (3b) of the jig (4). And projecting the other bone portion (B) to the first bone wire (6) by the traction slider (5), A step of separating A, B) to the position before fracture, and a step of screwing each bone portion (A, B) with a screw (8) and screwing with each screw hole (1) of the nail (2). An animal fracture treatment method is adopted.

  The invention according to claim 3 is the animal fracture treatment method according to claim 1 or 2, wherein the nail (2) is held by the nail holder (9) and inserted into the bone part (A, B). Thereafter, the fracture treatment method for animals is adopted in which the nail holder (9) is connected to the jig (4).

  According to a fourth aspect of the present invention, in the animal fracture treatment method according to any one of the first to third aspects, each of the two bone portions (A, B) is firstly pulled after being pulled by the traction slider. And a method for treating fractures of animals wearing the second screw (8a, 8b).

  Further, the invention according to claim 5 is the animal fracture treatment method according to any one of claims 2 to 4, wherein the third insertion wire (25) is provided in one bone part (A or B). At the mark where the third screw (8c) was attached to the other bone (B or A) and then the third insertion wire (25) of one bone (A or B) was pushed A method for treating a fracture of an animal wearing the fourth screw (8d) is adopted.

  According to the invention according to claim 1, the step of inserting the nail (2) into the bone marrow of the divided bone part (A, B), the step of connecting the jig (4) to the nail (2), Connecting one bone part (A) to a traction slider (5) attached to the jig (4) so as to be slidable parallel to the nail (2), and the other to the jig (4) and the nail (2) A step of connecting the bone part (B), a step of pulling one bone part (A) by the traction slider (5), separating the bone parts (A, B) to the position before the fracture, and reducing; Since it is an animal fracture treatment method including the step of fixing each bone part (A, B) to the nail (2) with a screw (8), the bone part (A, B) can be simply returned to the original position. The bone (A, B) is removed with the screw (8) while maintaining the state of the bone (A, B). It can be fixed. Therefore, the bone reduction operation can be performed easily and accurately.

  According to the invention according to claim 2, a step of inserting a nail (2) in which a plurality of screw holes (1) are formed at predetermined intervals into the bone marrow of the divided bone parts (A, B); The jig (4) having a plurality of guide holes (3a, 3b) is connected to the nail (2), and the guide holes (3a, 3b) are directly opposed to the screw holes (1) of the nail (2). A first insertion wire (6) is mounted on a pulling slider (5) attached to a jig (4) so as to be slidable parallel to the nail (2), and the first insertion wire (6 ) In one bone part (A) and the second insertion wire (7) through the screw hole (1) of the nail (2) from the guide hole (3b) of the jig (4). And projecting the other bone portion (B) to the first bone wire (6) by the traction slider (5), A step of separating A, B) to the position before fracture, and a step of screwing each bone portion (A, B) with a screw (8) and screwing with each screw hole (1) of the nail (2). Therefore, the bone part (A, B) is simply pulled back to the original position and the bone part (A, B) is removed with the screw (8) while maintaining the state (2). ) Can be fixed. Therefore, the bone reduction operation can be performed easily and accurately. Moreover, since the guide hole (3a, 3b) of the jig (4) can be used as a guide, the screw (8), the insertion wire (6, 7), etc. can be passed, so that the nail passed through the bone marrow that cannot be seen from the outside The screw (8), the insertion wire (6, 7) and the like can be easily and accurately passed through the screw hole (1) of (2).

  According to the invention of claim 3, in the animal fracture treatment method of claim 1 or claim 2, the nail (2) is held by the nail holder (9) and inserted into the bone part (A, B). Then, since it is an animal fracture treatment method for connecting the nail holder (9) to the jig (4), the nail (2) passed through the bone can be easily connected to the jig.

  According to a fourth aspect of the present invention, in the animal fracture treatment method according to any one of the first to third aspects, each of the two bone portions (A, B) is first after being pulled by the pulling slider. And the second screw (8a, 8b), the fracture treatment method for the animal, so that the two bone parts (A, B) can be fixed to the nail with the minimum number of screws (8a, 8b).

  According to the invention which concerns on Claim 5, in the fracture treatment method of the animal in any one of Claim 2 thru | or 4, a 3rd penetration wire (25) is provided in one bone part (A or B). At the mark where the third screw (8c) was attached to the other bone (B or A) and then the third insertion wire (25) of one bone (A or B) was pushed Since this is a method for treating fracture of an animal wearing the fourth screw (8d), the two bone parts (A, B) can be appropriately fixed to the nail with two screws (8a, 8b).

  The best mode for carrying out the invention will be described below with reference to the drawings.

  As shown in FIG. 2, the bone to be reduced by the fracture treatment method according to this embodiment is a femur of a small animal, and this femur has a fracture in the center, and the proximal bone across the fracture line. It is divided into a part A and a distal bone part B, and the vicinity of the fracture line is broken to form a bone fragment (not shown).

  As shown in FIGS. 1 and 2, the device used in this fracture treatment method includes a nail 2 inserted into the bone marrow in which a plurality of screw holes 1 are formed at predetermined intervals, and a screw hole of the nail 2. A plurality of guide holes 3 a and 3 b formed so as to face each other, a jig 4 detachably connected to the nail 2, and a traction slider 5 attached to the jig so as to be slidable parallel to the nail 2. The first insertion wire 6 protruding from the traction slider 5 side to one bone portion A sandwiching the fracture line, and the other bone portion B sandwiching the fracture line from the guide hole 3a of the jig 4 The second insertion wire 7 to be inserted into the screw hole 1 and the second insertion wire 7 after the first insertion wire 6 is pulled by the pulling slider 5 from each bone portion A, B. A screw 8 to be screwed into each screw hole 1 of the nail 2.

  Nail 2 is inserted into the bone marrow of the femur on the bone axis. The nail 2 is selected from various sizes prepared according to the type and size of the bone, and the size suitable for the femur. As shown in FIGS. 3A and 3B, a plurality of screw holes 1 are formed in the nail 2 at predetermined intervals. All the screw holes 1 are formed so as to intersect with the axis of the nail 2 in the same direction. Insertion wires 6 and 7, screws 8 and the like to be described later are inserted into desired ones of these screw holes 1. At the rear end of the nail 2, a screw hole 10 for connecting to a nail holder 9 described later and a concave groove 11 for preventing rotation are formed.

  As shown in FIG. 3, the nail holder 9 includes a cylindrical shaft portion 9a that extends coaxially with the nail 2, an arm portion 9b that protrudes from the side surface of the cylindrical shaft portion 9a, and a needle 9d that is inserted into the cylindrical shaft portion 9a. Prepare. A projection 9c is formed at the tip of the cylindrical shaft portion 9a so as to fit into the groove 11 at the rear end of the nail 2. A needle 9d is inserted into the cylindrical shaft portion 9a, and a male screw 12 that engages with the screw hole 10 of the nail 2 is formed at the distal end of the needle 9d that protrudes from the distal end of the cylindrical shaft portion 9a. The needle 9d protrudes rearward of the cylindrical shaft portion 9a, and a handle 9e to be grasped by the operator is formed there. The projection 9c of the nail holder 9 is fitted in the groove 11 of the nail 2 and the male screw 12 of the needle 9d is screwed into the female screw of the coupling hole 10 of the nail 2 so that the nail 2 is fixed to the nail holder 9 in a fixed posture. Is done.

  The nail 2 is handled in a state of being held by the nail holder 9 shown in FIG. 3 before being connected to the jig 4, and the surgeon holds the handle 9e in the bone marrow of the femur as shown in FIG. Plug in.

  As shown in FIGS. 1 and 2, the jig 4 is formed in a square bar shape. As shown in FIGS. 2 and 6, the connecting pin 13 protrudes from the lower surface of the rear end of the jig 4, and the connecting pin 13 is inserted into the connecting hole 14 formed in the arm portion 9 b of the nail holder 9. A male screw 15 with a dial is screwed into the arm portion 9 b, and the tip of the male screw 15 is fitted into an annular groove 13 a formed at the tip of the connecting pin 13. The nail holder 9 can be attached to and detached from the jig 4 by moving the male screw 15 forward and backward. As described above, since the nail 2 is fixed to the nail holder 9 in a fixed posture, when the nail holder 9 is connected to the jig 4, the opening of the screw hole 1 of the nail 2 faces the lower surface of the jig 4. .

  As shown in FIGS. 1 and 2, a plurality of guide holes 3 a and 3 b are formed in the jig 4 so as to face the screw holes 1 of the nail 2. Since the nails 2 having different lengths and different numbers of screw holes 1 may be used, the guide holes 3a and 3b are formed in a larger number than the screw holes 1 at the same interval as the screw holes 1. The guide holes 3a and 3b are roughly divided into a rear group corresponding to one bone portion A and a front group corresponding to the other bone portion B of the fractured bone at the center, and as shown in FIG. A guide sleeve or the like is inserted into the guide holes 3a and 3b. Further, as shown in FIG. 1, a slot 16 extending in the front-rear direction of the jig 4 is formed at a position near the rear part of the jig 4, and the slot 16 crosses the plurality of guide holes 3a of the rear group. Yes. Accordingly, the traction sleeve 17 attached to the traction slider 5 shown in FIG. 2 can move in the longitudinal direction of the jig 4 across the plurality of guide holes 3 a in the slot 16 together with the slide of the traction slider 5.

  As shown in FIGS. 1, 2, 4, 5, and 6, the traction slider 5 is placed on the rear portion of the jig 4 so as to be slidable in the longitudinal direction. The pulling slider 5 has a rectangular frame portion 5a straddling the jig 4 at the front end thereof, and slide walls 5b in contact with the left and right side walls of the jig 4 on the left and right sides. A concave portion is formed in the longitudinal direction of the jig 4 at the rear portion of the jig 4, and a feed screw rod 18 for sliding the traction slider 5 is inserted into the concave portion. As shown in FIGS. 1, 2, and 5, the front portion of the feed screw rod 18 is rotatably supported by a bracket member 19 that is pivotally supported on the front wall of the recess and connected to the bottom wall of the recess. Further, the rear portion of the feed screw rod 18 is rotatably held on the rear wall of the jig 4 via a bush 20. A head 18 a at the rear end of the feed screw rod 18 protrudes from the rear wall of the jig 4. A nut 21 is screwed into an intermediate portion of the feed screw rod 18, and a coupling screw 22 that penetrates the left and right slide walls 5 b of the traction slider 5 is screwed into the nut 21. Thereby, when the feed screw rod 18 is rotated, the nut 21 is screwed back and forth in the front-rear direction, and the traction slider 5 slides on the jig 4 together with the nut 21 in the front-rear direction.

  A communication hole 23 communicating with the guide hole 3 a of the jig 4 is formed in the frame portion 5 a at the front end of the traction slider 5, and the first insertion wire 6 shown in FIG. 7 is inserted into the communication hole 23. The first insertion wire 6 is specifically Kirschner steel wire. Although it is possible to insert the first insertion wire 6 directly into the communication hole 23, it is preferably inserted through the traction sleeve 17 shown in FIG. A drill blade (not shown) is formed at the tip of the first insertion wire 6. As shown in FIG. 2, the traction sleeve 17 is inserted into the communication hole 23 of the traction slider 5 and protruded to one bone portion A sandwiching the fracture line, and the first insertion wire 6 is formed using the traction sleeve 17 as a guide. The bone part A is thrust.

  As shown in FIG. 2, the second insertion wire 7 shown in FIG. 8 is inserted into the guide hole 3 b of the front group of the jig 4. The second insertion wire 7 is specifically a Kirschner steel wire. A drill blade (not shown) is also formed at the tip of the second insertion wire 7. The second insertion wire 7 can be inserted directly into the guide hole 3b, but is preferably inserted through the inner and outer guide sleeves 24a and 24b shown in FIG. As shown in FIG. 2, the outer guide sleeve 24 b is inserted into the guide hole 3 b of the jig 4 and protrudes into the other bone B sandwiching the fracture line, and the inner guide sleeve 24 a is inserted into the outer guide sleeve 24 b. The second insertion wire 7 is thrust into the bone part B with the inner guide sleeve 24a as a guide by a drill (not shown).

  Further, as shown in FIG. 2, a third insertion wire 25 and inner and outer guide sleeves 26a and 26b are inserted into the guide hole 3a of the rear group of the jig 4 as necessary. The third insertion wire 25 and the inner and outer guide sleeves 26a and 26b have the same configuration as the second insertion wire 7 and the inner and outer guide sleeves 24a and 24b.

  The second and third insertion wires 7 and 25 cross the bones B and A so as to pass through the screw holes 1 of the nail 2, but are extracted during the later-described operation, and the trace is shown in FIG. Thus, the screw 8 is inserted, and the screw 8 is screwed into the screw hole 1 of the nail 2.

  Next, a method for treating a fracture using the fracture treatment apparatus having the above configuration will be described.

  (1) As shown in FIG. 9, a fracture of a femur of a small animal is to be treated, and a nail 2 that matches the femur is selected, and the nail 2 is attached to the nail holder 9.

  Further, the small animal is placed in the lateral position, the soft tissue is incised, the proximal bone part A sandwiching the fracture line is reamed from the proximal end by a medullary reamer (not shown), and the distal bone part B is also medullary from the proximal end Reaming is performed with an empty reamer, and a pilot hole is opened on the bone axes of both bone parts A and B.

  The operator grasps the handle 9e of the nail holder 9 and inserts the nail 2 into the prepared hole as shown in FIG. The nail 2 arrives at the bottom of the distal bone B of the femur and stops.

  (2) As shown in FIG. 10, the nail 2 is connected to the jig 4 via the nail holder 9. As a result, the jig 4 extends parallel to the nail 2, and the screw hole 1 of the nail 2 faces the guide holes 3 a and 3 b of the jig 4.

  (3) The feed screw rod 18 is rotated, and the traction slider 5 is moved to the advance position on the jig 4 as shown in FIG. The first piercing wire 6 is pushed as a trochanter portion of the proximal bone portion A as a piercing wire for traction.

  This work is performed as follows. First, the traction sleeve 17 is inserted into the communication hole 23 of the traction slider 5, and the tip of the traction sleeve 17 is pushed to the bone part A. Next, the first insertion wire 6 is inserted into the pulling sleeve 17, and the first insertion wire 6 is chucked and rotated with a drill (not shown) and inserted into the bone part A. As a result, the proximal bone portion A is connected to the traction slider 5.

  (4) As shown in FIG. 12, the second insertion wire 7 is inserted into the screw hole 1 of the nail 2 while protruding from the guide hole 3 b of the front group of the jig 4 to the distal bone part B.

  This work is performed as follows. First, the outer guide sleeve 24 b is inserted into the guide hole 3 b of the jig 4, the tip of the outer guide sleeve 24 b is protruded to the bone part B, and then the inner guide sleeve 24 a is inserted into the outer guide sleeve 24 b. The second insertion wire 7 is inserted into the inner guide sleeve 24a, rotated by a drill (not shown), and inserted into the bone B. Thereby, the bone part B on the distal side is connected to the jig 4 and temporarily fixed.

  Since this fracture treatment jig 4 has a plurality of guide holes 3a and 3b that respectively face the screw holes 1 of the nail 2 when connected to the nail 2, it is invisible from the outside by passing through the bone marrow. The insertion wire 7 can be easily and accurately inserted into the screw hole 1 of the nail 2.

  (5) As shown in FIG. 13, the feed screw rod 18 is rotated to slide the traction slider 5 backward on the jig 4. The feed screw rod 18 can be easily rotated by locking a tool such as a ratchet handle (not shown) to the head portion 18a. As a result, the first insertion wire 6 is pulled backward with respect to the second insertion wire 7, and the proximal bone part A with respect to the distal bone part B across the fracture line is the original position before the fracture. Pulled away. In this towing operation, various reduction operations are performed.

  (6) As shown in FIG. 14, the first screw 8 a is inserted into the proximal bone part A and screwed into the screw hole 1 of the nail 2.

  This operation is performed in substantially the same manner as in the case of (4). That is, the inner and outer guide sleeves 24a and 24b similar to the case of (4) are inserted into the guide hole 3a of the rear group of the jig 4, and the distal end of the outer guide sleeve 24b is pushed to the bone part A. A drill blade (not shown) is inserted into the inner guide sleeve 24a to open a pilot hole, and a depth gauge (not shown) is inserted into the trace where the inner guide sleeve 24a has been removed, and the required length of the screw 8 is measured. After the depth gauge is pulled out of the outer guide sleeve 24b, the inner guide sleeve 24a is inserted into the outer guide sleeve 24b again, and tapping is performed on the bone portion A by a tap (not shown). Thereafter, the inner guide sleeve 24a is extracted from the outer guide sleeve 24b, and the first guide screw 8a is inserted into the bone portion A with a driver (not shown) using the outer guide sleeve 24b as a guide, and is screwed into the screw hole 1 of the nail 2. Finally, the outer guide sleeve 24b is extracted from the guide hole 3a. The bone part A on the proximal side is permanently fixed to the nail 2 by the first screw 8a.

  (7) As shown in FIG. 15, the same operation as in (6) is performed, and the second screw 8 b is inserted into the bone B on the distal side and screwed into the screw hole 1 of the nail 2. The bone B on the distal side is permanently fixed to the nail 2 by the second screw 8b.

  (8) As shown in FIG. 16, the same operation as in (4) is performed, and the third insertion wire 25 is moved from the other guide hole 3a of the rear group of the jig 4 to the bone A on the proximal side. Push it up and insert it into the screw hole 1 of the nail 2. Thereby, the bone part A on the proximal side is connected to the jig 4 and temporarily fixed.

  (9) As shown in FIG. 17, the same operation as in (6) is performed, and the third screw 8 c is inserted into the bone B on the distal side and screwed into the screw hole 1 of the nail 2. The bone B on the distal side is firmly fixed to the nail 2 more firmly by adding the third screw 8c to the second screw 8b of (7). When the bone B on the distal side is fixed to the nail 2 by the third screw 8c, the nail 2 is temporarily fixed to the third insertion wire 25 in (8). It is screwed into the screw hole 1 of the nail 2 accurately.

  (10) As shown in FIG. 18, the same operation as in (6) is performed, and the fourth screw 8d is inserted into the proximal bone part A and screwed into the screw hole 1 of the nail 2. The proximal bone portion A is permanently fixed to the nail 2 by adding the fourth screw 8d to the first screw 8a of (6).

  (11) As shown in FIG. 19, after removing the jig 4 and the nail holder 9 from the nail 2, the coupling hole 10 of the nail 2 is closed with an end cap 27. Moreover, the broken bone fragment is inserted between fracture lines and fixed by a desired method.

  Thereafter, the soft tissue is sutured and the regeneration of the fracture is awaited. When the fracture portion is regenerated, the soft tissue is incised again as necessary, and the nail 2 is extracted from the femur.

  The present invention is not limited to the above-described embodiment. For example, in the above-described embodiment, the fracture treatment of the femur of a small animal has been described. However, the present invention is also applicable to the treatment of fractures of other parts such as the humerus and tibia. is there. In addition, the procedure of surgery can be changed as appropriate. Further, the connection between the nail and the jig or the bone can be made by other connection means other than the insertion wire.

It is a top view of the fracture treatment apparatus used with the fracture treatment method concerning the present invention. FIG. 2 is a partially cutaway front view of the entire fracture treatment device shown in FIG. 1. (A) is a partially cutaway front view of a nail holder of a fracture treatment device, and (B) is a bottom view. FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 1. In FIG. 1, it is a VV arrow directional cross-sectional view. FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. 2. It is sectional drawing which shows a 1st penetration wire with a pulling sleeve. It is sectional drawing which shows a 2nd penetration wire with the guide sleeve inside and outside. It is a figure which shows step (1) of a fracture treatment method. It is a figure which shows step (2) of the fracture treatment method. It is a figure which shows step (3) of a fracture treatment method. It is a figure which shows step (4) of the fracture treatment method. It is a figure which shows step (5) of the fracture treatment method. It is a figure which shows step (6) of the fracture treatment method. It is a figure which shows step (7) of the fracture treatment method. It is a figure which shows step (8) of a fracture treatment method. It is a figure which shows step (9) of the fracture treatment method. It is a figure which shows step (10) of the fracture treatment method. It is a figure which shows step (11) of a fracture treatment method.

Explanation of symbols

A, B ... bone part 1 ... screw hole 2 ... nail 3a, 3b ... guide hole 4 ... jig 5 ... traction slider 6 ... first insertion wire 7 ... second insertion wire 8 ... screw 9 ... nail holder

Claims (5)

  Inserting the nail into the bone marrow of the cut bone, connecting the jig to the nail, connecting one bone to a traction slider attached to the jig slidably parallel to the nail; , A step of connecting the other bone part to the jig and the nail, a step of pulling one of the bone parts by a traction slider, separating the bone parts to the position before fracture, and reducing each bone part with a screw. A method for treating fracture of an animal comprising the step of fixing to a nail.   A step of inserting a nail in which a plurality of screw holes are formed at predetermined intervals into a bone marrow of a divided bone portion, a jig in which a plurality of guide holes are formed is connected to the nail, and the guide hole is nail Attach the first insertion wire to one of the bones and attach the first insertion wire to the pulling slider attached to the jig so that it can slide parallel to the nail. A step of projecting the second insertion wire from the guide hole of the jig to the other bone so as to pass through the screw hole of the nail, and pulling the first insertion wire by a traction slider, A method for treating a fracture of an animal comprising the steps of: separating the bone to a position before the fracture; and screwing each bone portion with a screw hole of the nail.   The animal fracture treatment method according to claim 1 or 2, wherein the nail is held by a nail holder and inserted into a bone portion, and then the nail holder is connected to a jig.   The animal fracture treatment method according to any one of claims 1 to 3, wherein a first screw and a second screw are respectively attached to two bone portions after towing by the tow slider. Fracture treatment method.   The animal fracture treatment method according to any one of claims 2 to 4, wherein a third insertion wire is protruded from one bone portion and a third screw is attached to the other bone portion, A method for treating fracture of an animal, comprising mounting a fourth screw on a trace of a third insertion wire in the bone part of the animal.

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