Problems with callus formation? How long after a fracture does it take for a callus to form

Callus formation is the initial healing of a broken bone, as long as it does not heal, then the pain is normal, there are abundant nerves in the periosteum, plus you have an external fixator, of course it will be normal.

You can't make it up blindly, and you can't make it up if you don't make it up! It's okay to eat something.

Don't be afraid of the trouble, it's time to go and take a look at it, and if the recovery is good, it shouldn't be the same as it was at the beginning, as long as the fixed combination is correct, it won't be the same as at the beginning.

Early treatment is good, and if it is displaced, it must be detected as soon as possible, otherwise the two parts that are not connected to each other will not grow well.

good luck

Tell you something very important!! Prevents the formation of blood clots!! Ask your doctor for details!!

Is it serious? It's hard to say how little is a few days, and how much is too much.

Analysis: The healing process of the fracture.

The process of fracture healing is the process of "stasis, regeneration, and osseosynthesis", which is the process of removing necrotic tissue on the one hand, and regenerating and repairing on the other hand (completed by membrane internalized bone and cartilage internalized bone) The whole process is continuous and gradual. The process of fracture healing is also a process of temporary emergency connection to a permanent strong connection. Generally, fracture healing is divided into three stages, namely, hematoma organization stage, primitive callus formation stage, and callus transformation and shaping stage. According to the histological and physiological characteristics of the fracture healing process, it can also be divided into 6 different stages: impact stage, induction stage, inflammatory stage, cartilage callus stage, hard callus stage and reconstruction stage.

1 Hematoma mechanization.

After the fracture, a hematoma forms at the fracture site due to the rupture and bleeding of the blood vessels in the fracture itself and adjacent soft tissues, and the hematoma begins to coagulate into a blood clot 6 to 8 hours after the injury, causing aseptic inflammation with local necrotic tissue. The severed end of the fracture is interrupted by blood circulation, and necrosis gradually develops, which is about several millimeters long. With the exudation of fibrin, the proliferation of capillaries, the invasion of fibroblasts and phagocytic cells, the hematoma gradually organizes, forms granulation tissue, and then evolves into fibrous connective tissue, so that the broken ends of the fracture are initially connected together, which is called fibrous connection, which is completed within about 2 to 3 weeks after the fracture.

At the same time, the osteoblasts of the episteum near the fracture end are actively proliferating soon after injury, and after a week, they begin to form bone-like tissue parallel to the backbone, and gradually extend and thicken towards the fracture. The same changes occur in the endosteal, but only later.

2 Primitive callus formation.

Primitive callus formation or osteoblast hyperplasia of the endoperiosteum and episteum, and the gradual ossification of bone tissue formed inside and outside the fracture end to form new bone, called membrane endomelis. With the continuous increase of new bone, when the fracture is intrinsic to the bone cortex, these complications should be prevented, and if they have appeared, they should be diagnosed and properly diagnosed in time, so that most of the complications can be avoided or **. The outside gradually grows towards the fractured end, meeting each other to form a fusiform shape, called the inner and outer callus.

The fibrous tissue in the fracture end and the medullary cavity is also gradually transformed into cartilage tissue, and ossified with the proliferation and calcification of chondrocytes, which is called cartilage internalized bone, and the annular callus and intramedullary callus are formed at the fracture site. After the two callus parts meet, these original callus calcify and gradually strengthen, and when they are strong enough to resist muscle contraction and angulation, shear and rotational forces, the fracture has reached clinical healing, which usually takes about 4 to 8 weeks. X-rays may show fusiform callus shadows around the fracture, but the fracture line is still faintly visible.

Injuries to the episteum are detrimental to fracture healing.

Answer]: The fracture healing process is divided into three stages: the inflammatory and organic stage of blood pants swelling, the primitive callus formation stage, and the bone plate formation and shaping stage.

Among them, the inflammatory and mechanical period of hematoma lasts 2 weeks, the original callus formation takes 4 to 8 weeks, and the plate formation and shaping period takes 8 weeks and 12 weeks.