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Bone fracture

life science Maturity 11-13 Next article →

A bone fracture is a medical condition where a bone breaks. This can be a partial break or a complete break in the bone's continuity.

612 Types of Fractures
612 Types of Fractures

Sometimes, a bone breaks into several small pieces. This is called a comminuted fracture. If the broken bone breaks through the skin, it is called an open or compound fracture.

Offene Luxation
Offene Luxation

Most fractures happen from a high force impact or stress. However, some breaks happen because a disease makes bones weak. This is called a pathologic fracture. Common causes include osteoporosis, which makes bones brittle. Other causes are osteopenia, bone cancer, or osteogenesis imperfecta.

Your body has a very organized way to fix a broken bone. First, the injured area and tissues bleed to form a fracture hematoma.

613 Stages of Fracture Repair
613 Stages of Fracture Repair

This blood clot forms between the broken bone fragments. Within a few days, new blood vessels grow into this jelly-like clot. These vessels bring cells called phagocytes to clean up the area. They also bring fibroblasts, which are cells that produce collagen fibers. This creates a rubbery matrix that holds the fragments in place. Eventually, bone crystals called calcium hydroxyapatite deposit into this matrix. This process, called mineralization, turns the soft matrix into hard bone.

Healing is a long process that happens in stages. In adults, the new bone often shows up on an X-ray within 6 weeks.

Xraymachine
Xraymachine

This initial bone is called woven bone, and it is not as strong as mature bone. Over time, a process called remodeling replaces it with mature lamellar bone. This whole journey can take up to 18 months to finish. By 3 months, the strength of the healing bone is usually 80% of normal. Certain things can help or hinder this work. Good nutrition and calcium intake help the bone heal. However, tobacco smoking can slow down the healing process.

Doctors use many tools to find and name a fracture. They often use radiographic imaging, like X-rays, to confirm a break.

Xraymachine
Xraymachine

If an X-ray is not enough, they might use a CT scan or an MRI. Doctors also classify fractures by their pattern or location. A transverse fracture goes across the bone at a right angle. An oblique fracture goes in a diagonal direction. A spiral fracture happens when the bone is twisted. There are also many specific names for breaks in different body parts. For example, a Colles' fracture is a specific break in the radius bone of the wrist.

Understanding fractures helps us see how the body protects itself. Even though bone tissue has no pain receptors, a fracture is very painful. This pain comes from the periosteum, which is the layer around the bone. This layer has many pain receptors that react to the injury. Pressure from swelling and blood clots also causes pain. Sometimes, muscles will spasm to try and hold the bone pieces still. It is important to get medical help quickly to prevent complications. Without care, a bone might heal in a crooked way, which is called a malunion.

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🖼️ Images & Media (16)
File:Nonunion2010.JPG
Nonunion2010.JPG
File:613 Stages of Fracture Repair.jpg
613 Stages of Fracture Repair.jpg
File:Xraymachine.JPG
Xraymachine.JPG
File:612 Types of Fractures.jpg
612 Types of Fractures.jpg
File:Offene Luxation.jpg
Offene Luxation.jpg
File:Periprosthetic fracture of left femur, case 1, before treatment.jpg
Periprosthetic fracture of left femur,...
File:Laengsfraktur_D4-Endglied_-_Verlauf_25M_-_CR_ap_-_001.jpg
Laengsfraktur_D4-Endglied_-_Verlauf_25M_-_...
File:Kind_of_fractures_-_Closed_fracture_--_Smart-Servier.png
Kind_of_fractures_-_Closed_fracture_--_Sma...
File:Kind of fractures - Oblique -- Smart-Servier.png
Kind of fractures - Oblique -- Smart-Servier.png
File:Armbreak_-_Spiral_Fracture.jpg
Armbreak_-_Spiral_Fracture.jpg
File:Blausen_0250_CompressionFracture_Vertebrae.png
Blausen_0250_CompressionFracture_Vertebrae.png
File:MalletFinger.PNG
MalletFinger.PNG

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