Why Can A Bone Marrow Tap Go Through The Sternum?

Bone marrow aspiration is of great diagnostic value for hematologic diseases, especially leukemia. Different types of diseases can be diagnosed by bone marrow examination. It is also helpful for the diagnosis of certain parasitic and bacterial diseases.

In addition, for the long-term fever, liver, spleen, lymph node enlargement can be feasible bone marrow puncture examination for a clear diagnosis. Iliac crest puncture, sternum puncture, tibia puncture and spinous process puncture can be used for bone marrow puncture. Due to osteoporosis in the iliac crest, thin cortex and more bone marrow fluid, puncture is relatively safe and easy. Bone marrow aspiration is not recommended in cases of hemophilia, severe bleeding tendency, and local skin infection. Sternum and spinous process puncture can also be used for older children who can cooperate.

Many people think bone piercings are scary, but the solution is simple. First, select the puncture site, inject a small amount of anesthetic locally, and extract a small drop of bone marrow tissue with a bone needle. The whole process of bone piercing by a skilled doctor takes only a few minutes.

After the bone marrow was extracted, the child could get up and move after pressing the puncture site to stop bleeding. There may be local acid distension during the extraction of bone marrow, which can be tolerated by children. No harm to children's health, and will not cause long-term damage. Because bone marrow is a very strong regenerative tissue of the human body, and the amount of bone marrow extracted is very small, so there is no need to worry about damaging the "vitality", and there is no need to supplement supplements.

Why do you need a bone marrow biopsy?

A bone marrow biopsy, or a bone marrow biopsy, uses a special needle to take a small cylindrical piece of bone marrow about 0.5 to 1 centimeter long for pathological examination. The operation method is basically the same as that of bone marrow biopsy. The extracted material maintains the complete bone marrow tissue structure, which can make up for the deficiency of bone marrow puncture. It has the following advantages:

1) Maintain the natural structure of hematopoietic tissue, which is convenient to judge the proportion of red pulp and adipose tissue;

2) A more comprehensive understanding of the degree of bone marrow hyperplasia, nucleated cell density and its layout;

3) The dilution of sinusoidal blood can be avoided;

4) It can assist in the diagnosis of myelofibrosis, hair-cell leukemia, bone marrow necrosis, and bone marrow steatosis, and can indicate the transformation of myelodysplastic syndrome to acute myelogenous leukemia. It can differentiate "dry extraction". Therefore, bone marrow biopsy can not only understand the composition of bone marrow cells and the distribution of original cells, but also observe the cell morphology, which is convenient to make pathological diagnosis, and provide an important diagnostic basis for hard-to-diagnose diseases such as aplastic anemia, myelodysplastic syndrome, bone marrow aspiration dry extraction and so on.

Bone marrow aspiration and bone marrow biopsy have their own advantages and disadvantages. They are two important means of diagnosing hematological diseases which cannot be replaced by each other. Bone marrow biopsy is also relatively easy, for the elderly can cooperate with children can be carried out more smoothly, for infants and children have certain difficulties. The biopsy procedure may be slightly longer than the bone marrow aspiration, and there may be a sense of distension during the biopsy. After the puncture, the patient was treated with pressure bandage and hemostasis