dislocation

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dislocation

dislocation displacement of a body part, usually a bone. When a bone is dislocated, the ends of opposing bones are usually forced out of connection with one another. In the process, bruising of tissues and tearing of ligaments may occur. The condition may be congenital, but usually it is the result of injury. In some persons recurrent dislocation, usually of the jaw or of the knee, is brought on by only slight provocation. Manipulation, bandages, splints, and other appliances are used to reposition the dislocated part. Occasionally corrective surgery may be required.

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dislocation

A Dictionary of Earth Sciences | 1999 | | Â© A Dictionary of Earth Sciences 1999, originally published by Oxford University Press 1999. (Hide copyright information) Copyright

dislocation
1. The relative displacement to either side of a fracture.

2. Imperfections developed along a line of atoms within a crystal structure, which may displace or add a row of atoms into the regular structure. Edge dislocations add rows of atoms; screw dislocations displace rows of atoms along a plane.

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AILSA ALLABY and MICHAEL ALLABY. "dislocation." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 16 Dec. 2009 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "dislocation." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (December 16, 2009). http://www.encyclopedia.com/doc/1O13-dislocation.html

AILSA ALLABY and MICHAEL ALLABY. "dislocation." A Dictionary of Earth Sciences. 1999. Retrieved December 16, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-dislocation.html

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