Opisthotonus
From Biocrawler, the free encyclopedia.
The words Opisthotonos or opisthotonus stem from the Greek language, opistho for behind and tonos for tension. Opisthotonus is seen as a severe hyperextension and spasticitic tendency in which the individual enters a complete "bridging" or "arching" position in the spinal cord. This abnormal posturing is an extrapyramidal effect and is caused by spasm of the axial muscles along the spinal column. It is posturing seen in individuals with severe cerebral palsy or traumatic brain injury. In infants and children opisthotonos is exhibited more often and is also more exaggerated than in adults. Opisthotonus in infants may be apparent in the first hours of life. This marked extensor tone can cause infants to "rear backwards" and stiffen out as the mother or nurse attempts to hold or feed them. Opisthotonus can be induced by any attempt at movement such as smiling, feeding, vocalization, or by seizure activity. Individuals with opithotonus are quite challenging to position, especially in wheelchairs and car seats.
 | This medical article is a stub. You can help Biocrawler by expanding it (http://www.biocrawler.com/w/index.php?title=Opisthotonus&action=edit). |
