Avulsion fracture

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An avulsion fracture is a bone fracture that occurs when bone fragments are torn from the major bone mass due to physical trauma. This can happen to the ligaments due to the strength of external applications to the body (such as falling or pulling) or on the tendon due to a stronger muscle contraction than the strength that holds the joint bone. Generally muscle avulsion is prevented because of neurological limitations placed on muscle contraction. Highly trained athletes can overcome the inhibition of these neurological forces and produce a much larger output of force that can break or lift bones.

Video Avulsion fracture

Treatment

If the fracture is small, it is usually enough to treat with rest and support bandages, but in more severe cases, surgery may be necessary. Ice can be used to remove swelling.

The fractured avulsion fracture is best managed by open reduction and internal fixation or reduction and a closed pin. Open reduction (using surgical incision) and internal fixation are used when pins, screws, or similar hardware are required to repair bone fragments.

Maps Avulsion fracture

Dental avulsion

Traumatic complete shifting of the tooth from the socket in the alveolar bone. This is a serious dental emergency where rapid management (within 20-40 minutes of injury) affects dental prognosis.

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avatsion metatarsal 5% tuberosity

The fracture of avulsion tuberosity (also known as pseudo-Jones fracture or fracture of the dancer is the general fracture of the fifth metatarsal (bone on the outer edge of the foot extending to the little toes) This fracture is probably caused by the lateral tape of plantar aponeurosis (tendon) Most of these fractures are treated with hard soled shoes or on foot.This is necessary until the pain is gone and then the patient can return to normal activity Healing usually finish within eight weeks.

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Tibial tuberosity Avastation

The tibial tuberosity avulsion fracture is an incomplete or complete separation of the tibial tuberosity of the tibia. This occurs as a result of cruel quadriceps muscle contractions, most often as a result of high power jumps. Incomplete fractures can usually be treated with traditional RICE (break, ice, compression, elevation) methods, but the most complete/displaced fractures most often require surgery to pin the tuberosity back into place. Tibial tuberosity avulsion occurs most often in adolescents who are involved in a large number of sporting activities, and many studies have shown history with Osgood-Schlatter disease to be associated with fractures.

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Other animals

Dinosaur

In 2001, Bruce Rothschild and other paleontologists published a study examining evidence of tendon spasms in theropod dinosaurs. Among the dinosaurs studied, avulsed lesions were recorded only between Tyrannosaurus and Allosaurus . The scars of this type of injury are limited to the humerus and shoulder blades. A divot on the humerus of Sue T. rex is one such avulsion. Divot seems to lie in the origins of deltoids or teres major muscles. Localization in the theropod scapula as evidenced by a tendon avulsion in Sue suggests that theropods may have more complex and functionally different muscles than their offspring, birds.

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See also

• Finger hammer
• Segond fracture

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References

Source of the article : Wikipedia