CN115005924A - A kind of femoral osteotomy shortening osteotomy guide plate - Google Patents

Abstract

The invention provides a femur osteotomy shortening osteotomy guide plate which comprises a wide plate and a narrow plate, wherein one ends of the wide plate and one end of the narrow plate are connected into a whole, one sides of the wide plate and one side of the narrow plate are flush, nail holes are uniformly distributed in the wide plate and the narrow plate, and scale marks are marked on the wide plate in the width direction. The problem that the angle of the femoral head can be adjusted only by the experience of a doctor in the existing treatment mode is solved. Belongs to the field of orthopedic surgery treatment.

Description

A kind of femoral osteotomy shortening osteotomy guide plate

technical field

The invention relates to a femoral osteotomy shortening osteotomy guide plate, which belongs to the field of orthopedic surgery treatment.

Background technique

Children with congenital dislocation of the hip or avascular necrosis of the femoral head generally require surgical treatment. The proximal femur is osteotomy and the angle of the femoral head is adjusted to an appropriate position before re-bonding to achieve the purpose of treatment. However, at present, due to auxiliary tools such as Restriction, the angle can only be adjusted by the doctor's experience when the femoral head is connected to the bone, and the human error is large, and once the error is too large, it will be very troublesome to complete the bone connection.

SUMMARY OF THE INVENTION

The invention provides a femoral osteotomy shortening osteotomy guide plate to solve the problem that the angle of the femoral head can only be adjusted by the doctor's experience in the existing treatment methods.

In order to achieve the above purpose, it is proposed to use such a femoral osteotomy shortening osteotomy guide plate, which includes a wide plate and a narrow plate. Nail holes are evenly distributed on the upper plate, and scale lines are marked along the width direction on the wide plate.

In the aforementioned femoral osteotomy shortening osteotomy guide, one side of the osteotomy guide is a concave smooth curved surface that fits with the anterior surface or side surface of the femur, so that the osteotomy guide can be very smooth along the length of the femur. Good fit and fixation on the anterior or lateral surface of the femur;

In the aforementioned femoral osteotomy shortening osteotomy guide, the two sides of the osteotomy guide are concave smooth curved surfaces that fit with the anterior or lateral surfaces of the femurs of both legs, so that the osteotomy guide runs along the length of the femur. The orientation can be well fitted and fixed to the anterior or lateral surface of the femur;

Due to the difficulty and high cost of manufacturing the two sides of the osteotomy guide to fit the anterior or lateral surface of the femur, the osteotomy guide can be designed as a concave with thick sides and a thin middle. The plate structure, although the fitting accuracy is slightly lower, can also fit well with the femur, which can meet the needs of surgery;

In the aforementioned femoral osteotomy shortening osteotomy guide plate, the two sides of the osteotomy guide plate have the same plate surface structure;

In the aforementioned femoral osteotomy shortening osteotomy guide plate, the osteotomy guide plate has a total length of 50mm, a wide plate with a length of 15mm and a width of 10mm, a narrow plate with a length of 35mm and a width of 5mm, and the thickness of the wide plate and the narrow plate is 2mm;

In the aforementioned femoral osteotomy shortening osteotomy guide plate, a length scale line is marked along the length direction on the narrow plate;

In the aforementioned femoral osteotomy shortening osteotomy guide, the pin hole is a gram pin hole with a diameter of 1.5 mm.

In the aforementioned femoral osteotomy shortening osteotomy guide, the scale line is accurate to millimeters.

Compared with the prior art, when the present invention is used, the circumference of the femur is first measured by preoperative CT to determine the angle that the femur should be rotated and adjusted, so as to determine the adjustment distance of the outer surface when the femur is rotated and adjusted, and then the operation is performed. First, the wide plate of the osteotomy guide plate is attached to the femur along the length of the femur, and the position of the osteotomy guide plate is adjusted so that the junction of the wide plate and the narrow plate is flush with the osteotomy line. It is fixed on the femur, and then the osteotomy guide plate is cut together with the femur, and then the angle is adjusted according to the adjustment distance of the outer surface of the femur when the femur is rotated and adjusted. After reaching the predetermined distance, the osteotomy can be performed. After completion, the osteotomy guide can be removed. The whole process is simple and convenient, which greatly simplifies the difficulty of the operation, ensures the accuracy of the angle adjustment, and avoids the risk of secondary surgery caused by the deviation of the adjustment angle. It is suitable for large-scale promotion and application.

Description of drawings

Figure 1 is a schematic structural diagram of the present invention.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not intended to limit the present invention. .

Example

Referring to FIG. 1, the present embodiment provides a femoral osteotomy shortening osteotomy guide plate, including a wide plate 1 and a narrow plate 2, the wide plate 1 and one end of the narrow plate 2 are connected as one, and the two sides are flush, and the width is wide. The plate 1 and the narrow plate 2 are distributed with nail holes 3. The wide plate 1 is marked with a scale line 11 along the width direction. The total length of the osteotomy guide plate is 50mm, the width of the wide plate 1 is 15mm, and the width is 10mm. The length of the narrow plate 2 is 35mm. , the width is 5mm, the thickness of the wide plate 1 and the narrow plate 2 is 2mm, the narrow plate 2 is marked with a length scale line 21 along the length direction, and the nail hole 3 is a gram pinhole with a diameter of 1.5mm.

The optimal choice of the two sides of the osteotomy guide is that the two sides of the osteotomy guide are concave smooth curved surfaces that fit with the anterior or lateral surfaces of the femurs of both legs, so that the osteotomy guide can follow the femur. The length direction can be well fitted and fixed to the anterior or lateral surface of the femur. However, due to the difficulty in making the two sides of the osteotomy guide to fit the anterior or lateral surface of the femur, the cost is high, so it is also possible to take the second place. The concave plate surface structure, the two sides of the osteotomy guide plate have the same structure, as shown in Figure 1, although the fitting accuracy is slightly lower, it can also fit well with the femur, which can meet the needs of surgery.

The specific method of use is as follows: When using, first measure the circumference of the femur through preoperative CT and determine the angle that the femur should be rotated and adjusted. Since the cross-section of the femur is approximately circular, the radius can be determined by the circumference, and then according to the angle that the femur should be rotated and adjusted And the radius of the femur can determine the adjustment distance of the outer surface when the femur is rotated and adjusted, and then the operation can be performed. During the operation, the wide plate 1 of the osteotomy guide should be fitted on the femur along the length of the femur, and the cutting guide should be adjusted. Position the bone guide plate so that the junction of the wide plate 1 and the narrow plate 2 is flush with the osteotomy line, fix the osteotomy guide plate on the femur with a gram needle, etc., and then cut the osteotomy guide plate together with the femur, and remove the cut part. Then, adjust the angle according to the adjustment distance of the outer surface of the femur when the femur is rotated and adjusted. At the same time, the distance is controlled by the scale line 11 on the wide plate 1. After the rotation reaches a predetermined distance, the bone can be connected, and it can be removed after completion. The osteotomy guide.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.

Claims (9)

1. The utility model provides a thighbone cuts bone shortening and cuts bone conduction board which characterized in that: including wide board (1) and narrow board (2), the one end of wide board (1) and narrow board (2) is connected as an organic wholely, and two one side parallel and level, and the nail hole (3) have been seted up to evenly distributed on wide board (1) and narrow board (2), has scale mark (11) along the width direction scale mark on wide board (1).

2. The femoral osteotomy shortening osteotomy guide of claim 1, wherein: the bone cutting guide plate is of a concave plate surface structure with thick two sides and thin middle.

3. A femoral osteotomy shortening osteotomy guide as defined in claim 2, wherein: the two side plate surfaces of the osteotomy guide plate are respectively concave smooth curved surfaces which are jointed with the front surface or the side surface of the thighbone of the two legs.

4. A femoral osteotomy shortening osteotomy guide as defined in claim 2, wherein: and the surface of one side of the bone cutting guide plate is a concave smooth curved surface which is attached to the front surface or the side surface of the femur.

5. A femoral osteotomy shortening osteotomy guide as defined in claim 2, wherein: the two side plate surfaces of the bone cutting guide plate have the same structure.

6. The femoral osteotomy shortening osteotomy guide of claim 4, wherein: the total length of the bone cutting guide plate is 50mm, the length of the wide plate (1) is 15mm, the width of the wide plate is 10mm, the length of the narrow plate (2) is 35mm, the width of the narrow plate is 5mm, and the thickness of the wide plate (1) and the thickness of the narrow plate (2) are 2 mm.

7. The femoral osteotomy shortening osteotomy guide of claim 1, wherein: the narrow plate (2) is marked with length scale lines (21) along the length direction.

8. The femoral osteotomy shortening osteotomy guide of claim 1, wherein: the nail hole (3) is a gram-type pinhole with the diameter of 1.5 mm.

9. The femoral osteotomy shortening osteotomy guide of claim 1, wherein: the graduation marks (11) are accurate to millimeters.

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