Avulsion fracture: Difference between revisions
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==Overview== | ==Overview== | ||
An '''avulsion fracture''' is a [[bone fracture]] which occurs when a fragment of bone tears away from the main mass of bone as a result of [[physical trauma]]. This can occur at the [[ligament]] due to the application forces external to the body (such as a fall or pull) or at the [[tendon]] due to a muscular contraction that is stronger than the forces holding the bone together. Generally muscular avulsion is prevented due to the neurological limitations placed on [[muscle contraction]]s. Highly trained athletes can overcome this neurological inhibition of strength and produce a much greater force output capable of breaking or avulsing a bone. | |||
If the fracture is small, it is usually sufficient to treat with rest and [[Splint (medicine)|support bandage]], but in more severe cases [[surgery]] may be required. Ice may be used to relieve [[swelling]]. | |||
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Image:Avulsionfracture.jpg|Schematic diagram of an avulsion fracture | Image:Avulsionfracture.jpg|Schematic diagram of an avulsion fracture | ||
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'''Avulsion fracture of anterior superior iliac spine''' | |||
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== See also == | == See also == | ||
Revision as of 02:07, 1 August 2012
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
An avulsion fracture is a bone fracture which occurs when a fragment of bone tears away from the main mass of bone as a result of physical trauma. This can occur at the ligament due to the application forces external to the body (such as a fall or pull) or at the tendon due to a muscular contraction that is stronger than the forces holding the bone together. Generally muscular avulsion is prevented due to the neurological limitations placed on muscle contractions. Highly trained athletes can overcome this neurological inhibition of strength and produce a much greater force output capable of breaking or avulsing a bone.
If the fracture is small, it is usually sufficient to treat with rest and support bandage, but in more severe cases surgery may be required. Ice may be used to relieve swelling.
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Schematic diagram of an avulsion fracture
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Avulsion fracture off lunate bone
Avulsion fracture of anterior superior iliac spine
