How does amputation work on large blood vessels?

Direct ligation of the severed end. The large vessels branch all over the branches, and the more they branch to the distal end, and both arterial veins have branches into the surrounding tissues and through the capillaries.

They are connected to each other, so although the general circulation is annular, the circulation within the actual tissue is reticulated. The part below the severed end of the amputation is responsible for the blood supply and return of the amputated part, and the direct ligation of the capillary connection between tissues will not affect the blood supply and return above the incision. Of course, it is not completely unaffected, some arteriole interruptions will affect some tissues, so sometimes it is not a one-off thing, and it will also clean up the tissues above the section that have a risk of necrosis, and the interruption of small veins will only cause tissue edema, and the blood will adapt to flow direction and establish a new return pathway.

The subject doesn't think that blood vessels are like wires to the end, so the blood vessels are meaningless, in fact, they are similar to tree roots. Well, it's more like a ladder, a 30-meter-long ladder cuts off 10 meters, and the remaining 20 meters are still fully functional ladders. You have to know that the blood vessels in our human body are the same as fishing nets.

After amputation, all the large blood vessels are ligated at the severed end. Small local bleeding spots.

Just use an electric knife on the line, circulation, arterial blood downward, will be more and more fine, and finally converge into a vein, back to the lower lumen V, in which, whether it is an artery or a vein, their way and way is many, our professional name is called collateral circulation. There are some large arterial vessels and venous vessels in the human body, and there are also countless capillaries, and when amputated, the original large arteries and veins circulatory system.

With the recovery of the body, some capillaries connecting arteries or veins will gradually evolve into large veins or arterial vessels, thus forming a new blood circulation system to ensure the body's energy. <>

The real circulation is not only one cycle as shown in the schematic diagram, but the amputation of the circulation composed of n multiple arteries - capillary network --- veins is to remove part of the artery - capillary network --- vein circulation, and the other is not greatly affected, the body self-adjusts and repairs, and part of the blood vessels regenerates or thickens to adapt to the new situation. Ligature, suture, cover with the surrounding **, and the large vessels are connected by capillaries. In fact, after amputation, the epidermis, muscles, blood vessels, and nerves are on the same wound surface, and the bones will be shorter, and then the muscles and epidermis will be sutured.

The blood vessel has been ligated at the same time as the amputation. <>

Amputation is an operation for serious orthopedic diseases, and in the event of serious bone damage or bone infection, amputation is often chosen in order to protect the patient's life. However, amputation surgery also has a relatively high risk, so if patients want to have amputation, they should pay more attention not to burden their bodies.

What should I pay attention to when having amputation?

1. Early exercise.

Patients need to exercise early after stone surgery. If the joint is left in place for a long time after surgery, if you do not exercise, it will cause joint spasm. This is because in this case, after the wound is treated, the remaining muscles of the limbs cannot move effectively.

In addition, joint spasms can be more severe. Because, if you don't exercise enough, you may lose your mobility.

2. Treatment of local bleeding problems.

Generally speaking, the wound area at the amputation site is relatively large, and local bleeding care should be paid attention to at this time. Generally speaking, if the hemostasis is not completely stopped during the operation, or the stump falls off and causes bleeding, the patient should keep the drainage smooth, avoid the drainage tube being squeezed, and choose a reasonable treatment method when the amount of bleeding increases significantly. In addition, if you notice significant changes in the muscles or bones of the stump, you should explain it to your doctor.

3. Avoid infection.

Patients who have undergone amputation should avoid infection. Because the infection is very serious for patients after amputation. This is because the original amputation may be caused by a broken bone or an infection of the bone marrow.

Therefore, after the operation, care should be taken to prevent infection, not to aggravate the patient's symptoms, and to re-amputate the limb. In addition, the patient should effectively examine the wound to avoid extensive wound infection. Otherwise, systemic poisoning or organ failure can occur.

4. Carry out joint activity training.

After amputation, patients require joint mobility training. This is partly due to the inability of patients to adapt effectively after limb amputation surgery. Because joint mobility training can be done as close as possible, the joints can move in all directions. Helps patients adapt and regain function quickly.

5. Improve bone strength.

After surgery, patients should improve their bone strength. Because the patient's own surgery will cause great damage to the bones, and the primary disease will also have a certain impact on their bones, which can not only improve bone strength, prevent diseases, but also strengthen the recovery speed. The options are nutritional supplementation and functional exercises.

How are blood vessels treated when cut?

The treatment of blood vessels at the time of amputation is still very particular. Usually the cut is made with a tourniquet to stop the bleeding. We ligate and then suture the blood vessels in the aorta.

Do not let the ligature fall off after surgery. Of course, the accompanying vein of this artery also needs to be ligated. Moreover, after the tourniquet is loosened, some small blood vessels must also be strictly hemostasis.

Can blood vessels form a reverse flow after amputation?

In fact, the body's repair function is still very strong. In the repair of wounds in the limbs, the nascent capillaries form a lateral leg circulation with each other, communicating with each other, forming a new countercurrent. Therefore, there is no doubt that the blood vessels form a backflow after amputation.

If a countercurrent cannot be formed, the cut loses its meaning.

It should be possible to form reflux, because the body's repair ability is still relatively strong.

Blood vessels can form reflux, because people's ** tissue is very strong, it can be regenerated, and it will also grow well, because many people will have this kind of accident, and they will live well after amputation.

Don't worry, the arterial and venous systems are never directly connected, they are separated by a huge network of capillaries.