Hypertonicity vs spasticity: Difference between revisions
No edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
= | <div class="editorbox"> | ||
'''Original Editors '''- [[User:Saeed Dokhnan|Saeed Dokhnan]] | |||
1-hypertonicity or spastic dystonia is a continues increase in the muscle tension without regarding to the movement and is dependent upon afferent information from feedback following movements of stretch , decorticat and decerbrate rigidity are a form of spastic dystonia, spastic dystonia is considered to be a form of sustained efferent muscular hyperactivity , dependent on continues supraspinal derive to the alpha motor neuron <ref>Clinical evaluation and management of spasticity, Jeffery et. al.2002</ref> | '''Top Contributors''' - {{Special:Contributors/{{FULLPAGENAME}}}} | ||
</div> | |||
== Hypertonicity or spastic dystonia == | |||
1-hypertonicity or spastic dystonia is a continues increase in the muscle tension without regarding to the movement and is dependent upon afferent information from feedback following movements of stretch , decorticat and decerbrate rigidity are a form of spastic dystonia, spastic dystonia is considered to be a form of sustained efferent muscular hyperactivity , dependent on continues supraspinal derive to the alpha motor neuron <ref>Clinical evaluation and management of spasticity, Jeffery et. al.2002</ref> | |||
<br> | <br> | ||
[[Image:Decorticate.jpg]]<br> | [[Image:Decorticate.jpg]]<br> | ||
= <br> = | = <br> = | ||
= Spasticity = | == Spasticity == | ||
- spasticity is a velocity dependent increase in muscle tone in regarding to passive movement | - spasticity is a velocity dependent increase in muscle tone in regarding to passive movement | ||
| Line 19: | Line 25: | ||
- pyramidal tract is the system which balance the muscle tone. | - pyramidal tract is the system which balance the muscle tone. | ||
== neural component of spasticity: == | === neural component of spasticity: === | ||
1-Dorsoreticulospinal tract (DRT) : Has inhibitory effect on MRT &VST | 1-Dorsoreticulospinal tract (DRT) : Has inhibitory effect on MRT &VST | ||
Revision as of 12:29, 20 March 2014
Original Editors - Saeed Dokhnan
Top Contributors - Saeed Dokhnan, Laura Ritchie, Lucinda hampton, Admin, Evan Thomas, Scott Buxton, Kate Sampson, Kim Jackson and Aya Alhindi
Hypertonicity or spastic dystonia[edit | edit source]
1-hypertonicity or spastic dystonia is a continues increase in the muscle tension without regarding to the movement and is dependent upon afferent information from feedback following movements of stretch , decorticat and decerbrate rigidity are a form of spastic dystonia, spastic dystonia is considered to be a form of sustained efferent muscular hyperactivity , dependent on continues supraspinal derive to the alpha motor neuron [1]
[edit | edit source]
Spasticity[edit | edit source]
- spasticity is a velocity dependent increase in muscle tone in regarding to passive movement
pyramidal tract lesions
-pyramidal tract injury doesn't give raise to spasticity the main symptoms are weakness and loss of dexterity which is greater in distal than in the proximal muscles
- pyramidal tract is the system which balance the muscle tone.
neural component of spasticity: [edit | edit source]
1-Dorsoreticulospinal tract (DRT) : Has inhibitory effect on MRT &VST
2-medial reticulospinal tract (MRT) &
3-vestibulospinal tract ( VST ):
-they have facilitatory effect on the extensor tone,
- all the three systems are though to inhibit flexor reflex afferents responsible for flexor spasm
References[edit | edit source]
- ↑ Clinical evaluation and management of spasticity, Jeffery et. al.2002
