CN111803194A - Bone marrow cement sleeve for chronic osteomyelitis operation and use method thereof - Google Patents

Abstract

The invention provides a bone marrow cement sleeve for chronic osteomyelitis surgery and a method for using the same. The inner diameter of the outer cylinder, one end of the inner cylinder extends into the outer cylinder, and one end of the inner cylinder is slidably arranged in the outer cylinder along the length direction of the outer cylinder. In order to solve the problems of low efficiency, many required operations, and inconvenient operation in the current osteotomy and bone transfer for osteomyelitis. It belongs to the field of chronic osteomyelitis treatment.

Description

A kind of bone marrow cement sleeve for chronic osteomyelitis surgery and using method thereof

technical field

The invention relates to a bone marrow cement sleeve for chronic osteomyelitis surgery and a method for using the same, belonging to the field of osteomyelitis treatment.

Background technique

At present, osteomyelitis is a relatively common orthopedic disease, which is mainly caused by infection. Osteomyelitis can cause damage to patients, and delaying treatment after the disease can cause systemic symptoms and manifestations in patients. Osteomyelitis is a curable chronic disease that often occurs in adults. After getting this disease, antibiotic treatment and surgical treatment should be actively taken. Effective treatment can reduce the mortality rate.

Surgical treatment is the best treatment for osteomyelitis. Surgical treatment can completely cure this disease. At present, the commonly used surgical treatment method is to cut off the diseased bone and then use bone transfer to make the cut part gradually complete. Methods During the implementation, in the first operation, a filler with antibiotics should be filled at the osteotomy site for antibacterial and anti-inflammatory. After a period of time, the filler was surgically removed and bone transfer was performed. During the process, the flesh and blood will also enter the osteotomy segment, and it is necessary to clean the flesh and new bone of the osteotomy segment, which requires many operations and is inconvenient to operate.

SUMMARY OF THE INVENTION

The present invention provides a bone marrow cement sleeve for chronic osteomyelitis surgery and a method of using the same, so as to solve the problems of low efficiency, many required operations, and inconvenient operation in the current osteotomy and bone transfer surgery for osteomyelitis.

In order to achieve the above purpose, it is proposed to adopt such a bone marrow cement sleeve for chronic osteomyelitis surgery, including an outer cylinder and an inner cylinder, the outer cylinder and the inner cylinder are both made of bone cement added with antibiotics, and the outer diameter of the inner cylinder is The inner diameter of the inner cylinder is smaller than the inner diameter of the outer cylinder, one end of the inner cylinder extends into the outer cylinder, and one end of the inner cylinder is slidably arranged in the outer cylinder along the length direction of the outer cylinder.

The aforementioned bone cement sleeve further includes a second inner cylinder, the outer diameter of the second inner cylinder is smaller than the inner diameter of the inner cylinder, and one end of the second inner cylinder is slidably arranged in the inner cylinder;

In the aforementioned bone cement sleeve, the outer diameter of the inner cylinder is 0.01-0.2 mm smaller than the inner diameter of the outer cylinder, that is, slightly smaller than the inner diameter of the outer cylinder, so that one end of the inner cylinder can just extend into the outer cylinder;

In the aforementioned bone cement sleeve, one end of the inner cylinder is further provided with a piston, and one end of the inner cylinder is slidably arranged in the outer cylinder through the piston;

In the aforementioned bone cement sleeve, the outer diameters of the outer cylinder and the inner cylinder respectively deviate by less than 10 mm from the diameters of the two sections of the osteotomy end.

It is used as follows:

During the operation, the osteomyelitis diseased bone was cut off, and the bone transfer technique was used to fix the traction frame first, and the transferred bone was cut off along the osteotomy line of the transferred bone. The outer ends of the tube and the inner tube touch the two cut surfaces of the diseased bone respectively. After the operation is completed, the new bone at the osteotomy line of the transferred bone gradually grows. The diseased bone is appropriately moved in the direction of osteotomy. During the moving process, the inner tube is gradually slid into the outer tube until the inner tube is completely slid into the outer tube, and then the outer tube and the inner tube are removed by surgery.

In the aforementioned method, before the outer and inner cylinders are implanted, the antibiotics in the bone cement sleeve need to be matched with the patient, and the antibiotics that are symptomatic of the patient are selected and placed in the bone cement to make the outer and inner cylinders.

Compared with the prior art, the present invention can replace the current filler at the osteotomy site for osteomyelitis surgery to fill the osteotomy site. When performing bone transfer, firstly, since the bone cement sleeve itself carries antibiotics, there is no need for postoperatively. Wait about a week before performing bone transfer. Instead, after surgery, appropriate bone transfer can be performed directly according to the growth of new bone. At the same time, there is no need to remove the bone cement sleeve after a week or so as in the existing method, but it can grow. Generally, antibiotic bone cement can release antibiotics continuously for about three months. However, due to the limitations of the prior art, it is currently placed for about one month at most, which results in a waste of antibiotics. However, this technology does not need to take out antibiotic bone cement early, so It can be placed in the body for about 3 months, the antibiotics can be released continuously for a longer time, and the continuous release of high-concentration antibiotics can improve the killing effect on bacteria; the number of operations is reduced, and after using the bone cement sleeve, only two In the process of bone transfer, the osteotomy segment is all replaced by the bone cement sleeve. Filling, the bone cement sleeve continuously releases antibiotics to the periphery, and blocks the flesh and blood from entering the osteotomy segment, so the operation effect is better.

Description of drawings

Fig. 1 is the structural representation after osteotomy for osteomyelitis and the installation of the traction frame of bone transfer;

Fig. 2 is the structural representation after implanting this bone cement sleeve;

Fig. 3 is the structural representation after the bone is moved for a certain distance;

Fig. 4 is the structural schematic diagram after implanting the bone cement sleeve under the state of three-segment sleeve;

Fig. 5 is a schematic view of the structure after the bone is moved for a certain distance in the state of the three-segment sleeve.

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 1

1 to 3, the present embodiment provides a bone marrow cement sleeve for chronic osteomyelitis surgery, including an outer cylinder 1 and an inner cylinder 2, both of which are made of bone cement added with antibiotics. The difference between the outer diameters of the outer cylinder 1 and the inner cylinder 2 and the diameters of the two sections of the osteotomy end is less than 10mm, and the outer diameter of the inner cylinder 2 is 0.1mm smaller than the inner diameter of the outer cylinder 1, that is, slightly smaller than the inner diameter of the outer cylinder 1. One end of the inner cylinder 2 extends into the outer cylinder 1, and one end of the inner cylinder 2 is slidably arranged in the outer cylinder 1 along the length direction of the outer cylinder 1. Preferably, one end of the inner cylinder 2 is also provided with a piston 3, One end of the cylinder 2 is slidably arranged in the outer cylinder 1 through the piston 3 to improve the sliding connection effect between the two.

During use, as shown in Figures 1-3, during the operation, the osteomyelitis diseased bone is cut off, and the bone transfer technique is used to fix the traction frame 4 as shown in Figure 1, and the transfer bone 5 is cut off along the transfer bone osteotomy line 6, The outer cylinder 1 and the inner cylinder 2 are implanted between the two cut surfaces of the diseased bone, and the outer ends of the outer cylinder 1 and the inner cylinder 2 touch the two cut surfaces of the diseased bone respectively. The new bone at the bone line 6 grows gradually, and the bone 5 can be appropriately distracted every day according to the growth of the new bone, and it can be appropriately moved to the osteotomy direction of the diseased bone. Until the inner cylinder 2 is completely slid into the outer cylinder 1, the outer cylinder 1 and the inner cylinder 2 can be removed surgically. Before the outer cylinder 1 and the inner cylinder 2 are implanted, the antibiotics inserted into the bone cement sleeve need to be checked with the patient. To match, select the antibiotics that are symptomatic of the patient and put them into the bone cement to make the outer cylinder 1 and the inner cylinder 2. During the bone transfer process, firstly, because the bone cement sleeve itself carries antibiotics, there is no need to wait for about a week after the operation. Instead, surgery can directly perform appropriate bone transfer according to the bone growth; the number of operations is reduced, and after using this bone cement sleeve, only two operations are required, namely the implantation of the bone cement sleeve and the removal of the bone cement sleeve That's it, while the existing method requires at least 3-4 operations to complete.

Example 2

1, 4 and 5, the present embodiment provides a bone marrow cement sleeve for chronic osteomyelitis surgery, comprising an outer cylinder 1, an inner cylinder 2 and a second inner cylinder 7, an outer cylinder 1, an inner cylinder 2 and the second inner cylinder 7 are all made of bone cement added with antibiotics, the outer diameters of the outer cylinder 1, the inner cylinder 2 and the second inner cylinder 7 are respectively less than 10mm apart from the diameters of the two sections of the osteotomy end, and the diameter of the inner cylinder 2 is less than 10mm. The outer diameter is 0.1mm smaller than the inner diameter of the outer cylinder 1, that is, slightly smaller than the inner diameter of the outer cylinder 1. One end of the inner cylinder 2 extends into the outer cylinder 1, and one end of the inner cylinder 2 is slidably arranged along the length of the outer cylinder 1. In the outer cylinder 1, preferably, one end of the inner cylinder 2 is also provided with a piston 3, and one end of the inner cylinder 2 is slidably arranged in the outer cylinder 1 through the piston 3 to improve the sliding connection effect between the two, and the second inner cylinder 7 The outer diameter of the second inner cylinder 7 is 0.1mm smaller than the inner diameter of the inner cylinder 2, that is, slightly smaller than the inner diameter of the inner cylinder 2. One end of the second inner cylinder 7 extends into the inner cylinder 2, and one end of the second inner cylinder 7 is along the inner cylinder 2. The longitudinal direction of the second inner cylinder 7 is slidably arranged in the inner cylinder 2 , preferably, one end of the second inner cylinder 7 is further provided with a piston 3 , and one end of the second inner cylinder 7 is slidably arranged in the inner cylinder 2 through the piston 3 .

During use, as shown in Figures 1, 4 and 5, during the operation, the osteomyelitis diseased bone is cut off, and bone transfer is used to fix the traction frame 4 as shown in Figure 1, and the transferred bone 5 is along the transfer bone osteotomy line 6. Cut off, implant the outer cylinder 1, the inner cylinder 2 and the second inner cylinder 7 between the two cut surfaces of the diseased bone, and the outer ends of the outer cylinder 1 and the second inner cylinder 7 respectively touch the two cut surfaces of the diseased bone After the operation is completed, with the gradual growth of the new bone at the osteotomy line 6 of the transferred bone, the transferred bone 5 can be appropriately distracted every day according to the growth of the new bone and moved to the direction of the osteotomy of the diseased bone. 2 Gradually slide into the outer cylinder 1, and the second inner cylinder 7 gradually slides into the inner cylinder 2 until the inner cylinder 2 completely slides into the outer cylinder 1, and the second inner cylinder 7 completely slides into the inner cylinder 2. The outer cylinder 1 and inner cylinder 2 are taken out during the operation. Before the bone cement sleeve is implanted, the antibiotics in the bone cement sleeve should be matched with the patient, and the antibiotics that are symptomatic of the patient should be placed in the bone cement to make the outer cylinder. 1. The inner cylinder 2 and the second inner cylinder 7. During the bone transfer process, firstly, because the bone cement sleeve itself carries antibiotics, there is no need to wait for about a week after the operation to perform the bone transfer, but the operation can be performed according to the bone growth. Appropriate bone transfer is directly performed; the number of operations is reduced, and after using the bone cement sleeve, only two operations are required, that is, the implantation of the bone cement sleeve and the removal of the bone cement sleeve, while the existing method requires at least 3 operations. - 4 operations to complete.

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 (7)

1. A bone marrow cement sleeve for use in chronic osteomyelitis procedures, comprising: including urceolus (1) and inner tube (2), urceolus (1) and inner tube (2) are made by the bone cement that adds the antibiotic, and the external diameter of inner tube (2) is less than the internal diameter of urceolus (1), and the one end of inner tube (2) extends in urceolus (1), just the one end of inner tube (2) is followed the length direction of urceolus (1) and is slided and set up in urceolus (1).

2. A bone marrow cement sheath for use in chronic osteomyelitis procedures as claimed in claim 1, wherein: the device is characterized by further comprising a second inner cylinder (7), wherein the outer diameter of the second inner cylinder (7) is smaller than the inner diameter of the inner cylinder (2), and one end of the second inner cylinder (7) is arranged in the inner cylinder (2) in a sliding mode.

3. A bone marrow cement sheath for use in chronic osteomyelitis procedures as claimed in claim 1, wherein: the outer diameter of the inner cylinder (2) is 0.01-0.2mm smaller than the inner diameter of the outer cylinder (1).

4. A bone marrow cement sheath for chronic osteomyelitis surgery as claimed in claim 3, wherein: one end of the inner cylinder (2) is provided with a piston (3), and one end of the inner cylinder (2) is arranged in the outer cylinder (1) in a sliding manner through the piston (3).

5. A bone marrow cement sheath for use in chronic osteomyelitis procedures as claimed in claim 1, wherein: the outer diameters of the outer cylinder (1) and the inner cylinder (2) are respectively less than 10mm from the diameters of the two sections of the osteotomy end.

6. The method of using the cement sleeve of claim 1, wherein the specific method is as follows:

during operation, a bone with osteomyelitis is cut off, a traction frame (4) is fixed by using a bone moving operation, a moving bone (5) is cut off along a moving bone cutting line (6), an outer cylinder (1) and an inner cylinder (2) are implanted between two disease bone cutting surfaces, the outer ends of the outer cylinder (1) and the inner cylinder (2) are respectively abutted against the two disease bone cutting surfaces, after the operation is completed, a new bone at the position of the moving bone cutting line (6) grows gradually, namely the moving bone (5) is properly moved towards the disease bone cutting direction by properly pulling the moving bone (5) every day according to the growth condition of the new bone, the inner cylinder (2) slides into the outer cylinder (1) gradually in the moving process until the inner cylinder (2) completely slides into the outer cylinder (1), and then the outer cylinder (1) and the inner cylinder (2) are taken out through the operation.

7. The method of claim 6, further comprising: before the outer cylinder (1) and the inner cylinder (2) are implanted, the antibiotics placed in the bone cement sleeve are matched with a patient, and the antibiotics corresponding to the patient are selected to be placed in the bone cement to form the outer cylinder (1) and the inner cylinder (2).

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