Method for fixing finger extensor tendon avulsion fracture through kirschner wire

Abstract

The invention discloses a method for fixing a finger extensor tendon avulsion fracture through a kirschner wire, and relates to the technical field of medical treatment, the method for fixing the finger extensor tendon avulsion fracture through the kirschner wire comprises the following steps: step 1, driving a kirschner wire into a finger far-end interphalangeal joint (DIP) straightening position under C-shaped arm fluoroscopy, enabling the kirschner wire not to be driven into a fracture gap when the kirschner wire passes through the joint, and enabling the kirschner wire to be inserted into the fracture gap when the kirschner wire passes through the joint; the method comprises the following steps of: (1) fixing a fracture to avoid influence on reduction, (2) resetting a fracture broken end at the back side of a tail phalanx and near a nail root through C-shaped arm perspective, and fixing by using a 0.8 mm blocking kirschner wire, and (3) transversely driving a 0.8 mm kirschner wire at the near end of the tail phalanx to penetrate out of two sides of a finger, leaving 0.4 mm outside the skin, and bending towards the finger pulp side. The method has the advantages of being firm in fixation, closed in reduction, small in injury, fast in recovery and the like, extensor tendon injury can be effectively avoided, meanwhile, the extensor tendon does not penetrate out of the finger pulp, stimulation to the skin of the finger pulp can be effectively reduced, and discomfort of a patient is reduced.

Description

Technical Field

[0001] The invention relates to the field of medical technology, and in particular to a method for fixing a finger extensor tendon avulsion fracture with a Kirschner wire. Background Art

[0002] Avulsion fracture of the insertion point of the extensor tendon of the hand, also referred to as "bone (avulsion fracture)" of the hammer finger. Injury mechanism: When the distal phalanx is straightened and there is longitudinal axial stress, excessive dorsiflexion of the distal interphalangeal joint will cause a bony hammer finger, while excessive palmar flexion of the distal interphalangeal joint will cause a tendon hammer finger.

[0003] At present, the mainstream method is the Ishiguro method to fix bony mallet fingers. A Kirschner wire is fixed to the middle phalanx by 30-45° sagittal dorsal tilt from the distal side close to the periosteum of the distal phalanx, and then the PIP joint is dorsiflexed. A 0.8mm Kirschner wire is used to fix the DIP joint to achieve the purpose of reduction and fixation. However, the Ishiguro method has the following disadvantages: the extensor tendon in zone 1 is thin. The Kirschner wire used to fix the middle phalanx cannot be guaranteed to be fixed in place at one time, and it is often adjusted many times. Repeated fixation of the middle phalanx will damage the tendon and even relax the tendon. For every 1mm extension of the extensor tendon, the dorsiflexion is lost by 25°. Complete dorsiflexion cannot be achieved after surgery. There is a loss of about 8-10 degrees. Closed reduction and fixation will compress the skin and may cause skin necrosis. Summary of the invention

[0004] The present invention aims to provide a method for fixing finger extensor tendon avulsion fracture with Kirschner wire to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A method for fixing a finger extensor tendon avulsion fracture with a Kirschner wire comprises the following steps:

[0007] Step 1: Insert a Kirschner wire into the distal interphalangeal joint extension position;

[0008] Step 2: Fix the distal fracture end with a blocking Kirschner wire;

[0009] Step 3: Insert a Kirschner wire horizontally into the proximal end of the distal phalanx;

[0010] Step 4: bend the inserted blocking Kirschner wire;

[0011] Step 5: Use rubber band to tie it tightly.

[0012] A further improvement of the technical solution of the present invention is that: the step 1 of inserting a Kirschner wire into the extended position of the distal interphalangeal joint specifically comprises the following steps:

[0013] Under C-arm fluoroscopy, a Kirschner wire is inserted into the extended position of the distal interphalangeal joint (DIP) of the finger. When passing through the joint, the fracture gap should not be hit to avoid affecting the reduction.

[0014] The further improvement of the technical solution of the present invention is that the step 2, fixing the fracture end of the distal segment with a blocking Kirschner wire specifically comprises the following steps:

[0015] On the dorsal side of the distal phalanx, near the nail root, the fracture ends were reduced under C-arm fluoroscopy and fixed with a 0.8mm blocking Kirschner wire.

[0016] A further improvement of the technical solution of the present invention is that the step 3 of inserting a Kirschner wire transversely into the proximal end of the distal phalanx specifically comprises the following steps:

[0017] A 0.8mm Kirschner wire is inserted horizontally at the proximal end of the finger and then passed through both sides of the finger, leaving 0.4mm outside the skin and bending it with the bending direction toward the finger pulp.

[0018] The further improvement of the technical solution of the present invention is that the fourth step of bending and inserting the blocking Kirschner wire specifically includes the following steps:

[0019] Bend the blocking Kirschner wire in step 2 0.3 mm outside the skin. The bending length should be slightly longer than that of the horizontally fixed Kirschner wire, and bend it repeatedly left and right.

[0020] A further improvement of the technical solution of the present invention is that the step 5, using a rubber strip to tie up, specifically comprises the following steps:

[0021] Use rubber strips (rubber edge of sterile gloves) to tie the transverse Kirschner wires and the blocking fracture bends on both sides of the fingers to prevent them from being withdrawn.

[0022] Due to the adoption of the above technical solution, the present invention has the following technical advances compared with the prior art:

[0023] The present invention provides a method for fixing an avulsion fracture of the extensor tendon of a finger with a Kirschner wire. The method has the characteristics of firm fixation, closed reduction, small damage, fast recovery, etc., and can effectively avoid damage to the extensor tendon. At the same time, the method does not penetrate the finger pulp, and can effectively reduce stimulation to the skin of the finger pulp, thereby reducing the discomfort of the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of fixing the extensor tendon avulsion fracture of the finger with a Kirschner wire according to the present invention;

[0025] Figure 2 It is a schematic axial view of a Kirschner wire fixing an avulsion fracture of the finger extensor tendon of the present invention;

[0026] Figure 3This is a schematic structural diagram of a finger cutaway view after the structure of the present invention is installed;

[0027] Figure 4 It is a schematic diagram of the structure of the phalanx fixation of the present invention;

[0028] Figure 5 The present invention is a schematic flow chart of a method for fixing an avulsion fracture of the extensor tendon of the finger with a Kirschner wire. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with embodiments:

[0030] Example 1

[0031] like Figure 1-5 As shown, the present invention provides a method for fixing an avulsion fracture of the extensor tendon of the finger with a Kirschner wire, and the method for fixing an avulsion fracture of the extensor tendon of the finger with a Kirschner wire comprises the following steps:

[0032] Step 1: Insert a Kirschner wire into the distal interphalangeal joint extension position;

[0033] Step 2: Fix the distal fracture end with a blocking Kirschner wire;

[0034] Step 3: Insert a Kirschner wire horizontally into the proximal end of the distal phalanx;

[0035] Step 4: bend the inserted blocking Kirschner wire;

[0036] Step 5: Use rubber band to tie it tightly.

[0037] Step 1, inserting a Kirschner wire, specifically includes:

[0038] A further improvement of the technical solution of the present invention is that: the step 1 of inserting a Kirschner wire into the extended position of the distal interphalangeal joint specifically comprises the following steps:

[0039] Under C-arm fluoroscopy, a Kirschner wire is inserted into the extended position of the distal interphalangeal joint (DIP) of the finger. When passing through the joint, the fracture gap should not be hit to avoid affecting the reduction.

[0040] The further improvement of the technical solution of the present invention is that the step 2, fixing the fracture end of the distal segment with a blocking Kirschner wire specifically comprises the following steps:

[0041] On the dorsal side of the distal phalanx, near the nail root, the fracture ends were reduced under C-arm fluoroscopy and fixed with a 0.8mm blocking Kirschner wire.

[0042] A further improvement of the technical solution of the present invention is that the step 3 of inserting a Kirschner wire transversely into the proximal end of the distal phalanx specifically comprises the following steps:

[0043] A 0.8mm Kirschner wire is inserted horizontally at the proximal end of the finger and then passed through both sides of the finger, leaving 0.4mm outside the skin and bending it with the bending direction toward the finger pulp.

[0044] The further improvement of the technical solution of the present invention is that the fourth step of bending and inserting the blocking Kirschner wire specifically includes the following steps:

[0045] Bend the blocking Kirschner wire in step 2 0.3 mm outside the skin. The bending length should be slightly longer than that of the horizontally fixed Kirschner wire, and bend it repeatedly left and right.

[0046] A further improvement of the technical solution of the present invention is that the step 5, using a rubber strip to tie up, specifically comprises the following steps:

[0047] Use rubber strips (rubber edge of sterile gloves) to tie the transverse Kirschner wires and the blocking fracture bends on both sides of the fingers to prevent them from being withdrawn.

[0048] In summary, the effect of the present invention is: the present invention provides a method for fixing finger extensor tendon avulsion fracture with Kirschner wires, which can effectively avoid extensor tendon injury by having the characteristics of firm fixation, closed reduction, small damage, and fast recovery. At the same time, this method does not penetrate the fingertips, which can effectively reduce the irritation to the fingertips skin and reduce the patient's discomfort.

[0049] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A method for fixing an avulsion fracture of the extensor tendon of a finger with a Kirschner wire, characterized in that: The method for fixing an extensor tendon avulsion fracture with a Schirmer pin comprises the following steps: Step 1: Insert a Kirschner wire into the distal interphalangeal joint extension position; Step 2: Fix the distal fracture end with a blocking Kirschner wire; Step 3: Insert a Kirschner wire horizontally into the proximal end of the distal phalanx; Step 4: bend the inserted blocking Kirschner wire; Step 5: Use rubber band to tie it tightly.

2. The method for fixing an avulsion fracture of the extensor tendon of the finger with a Kirschner wire according to claim 1, characterized in that: The step 1 of inserting a Kirschner wire into the extended position of the distal interphalangeal joint specifically comprises the following steps: Under C-arm fluoroscopy, a Kirschner wire is inserted into the extended position of the distal interphalangeal joint (DIP) of the finger. When passing through the joint, the fracture gap should not be hit to avoid affecting the reduction.

3. The method for fixing an avulsion fracture of the extensor tendon of the finger with a Kirschner wire according to claim 2, characterized in that: The second step of fixing the distal fracture end with a blocking Kirschner wire specifically includes the following steps: On the dorsal side of the distal phalanx, close to the root of the nail, the fracture ends were reduced under C-arm fluoroscopy and fixed with a 0.8mm blocking Kirschner wire.

4. The method for fixing an avulsion fracture of the extensor tendon of the finger with a Kirschner wire according to claim 3, characterized in that: The step 3 of inserting a Kirschner wire transversely into the proximal end of the distal phalanx specifically comprises the following steps: A 0.8mm Kirschner wire is inserted horizontally at the proximal end of the finger and then passed through both sides of the finger, leaving 0.4mm outside the skin and bending it with the bending direction toward the finger pulp.

5. The method for fixing an avulsion fracture of the extensor tendon of the finger with a Kirschner wire according to claim 4, characterized in that: The fourth step of bending and inserting the blocking Kirschner wire specifically includes the following steps: Bend the blocking Kirschner wire in step 2 0.3 mm outside the skin. The bending length should be slightly longer than that of the horizontally fixed Kirschner wire, and bend it repeatedly left and right.

6. The method for fixing an avulsion fracture of the extensor tendon of the finger with a Kirschner wire according to claim 5, characterized in that: The step 5 of tightening with a rubber strip specifically includes the following steps: Use rubber strips (rubber edge of sterile gloves) to tie the transverse Kirschner wires and the blocking fracture bends on both sides of the fingers to prevent them from being withdrawn.

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