Composite Spasticity Index (CSI): Difference between revisions

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== Objective ==
== Objective ==
The Composite Spasticity Index (CSI) is used for the quantification of [[spasticity]] in [[Hemiplegia|hemiparetic]] limbs.<ref name=":0">Calota A, Levin MF. Tonic stretch reflex threshold as a measure of spasticity: implications for clinical practice. Top Stroke Rehabil. 2009 May-Jun;16(3):177-88.</ref>
The Composite Spasticity Index (CSI) is used for the quantification of [[spasticity]] in [[Hemiplegia|hemiparetic]] limbs.<ref name=":0">Calota A, Levin MF. [https://pubmed.ncbi.nlm.nih.gov/19632962/ Tonic stretch reflex threshold as a measure of spasticity: implications for clinical practice.] Top Stroke Rehabil. 2009 May-Jun;16(3):177-88.</ref>


== Intended Population ==
== Intended Population ==
It is intended for use in patients with [[stroke]].<ref name=":0" />
It is intended for use in patients with [[stroke]]<ref name=":0" />, [[Spinal Cord Injury|spinal cord injury]] and [[Cerebral Palsy Introduction|cerebral palsy]]<ref name=":1">Stroke Engine. Composite Spasticity Index. Available from: https://strokengine.ca/en/assessments/composite-spasticity-index-csi/#:~:text=Index%20(CSI)%20provides%20a%20clinical,patients%20with%20hemiparesis%20following%20stroke (Accessed 21/08/2022)</ref>.


== Method of Use  ==
== Method of Use  ==
The CSI has three components:<ref name=":0" />
The CSI has three components:


# Tendon jerk
# Tendon jerk
# Resistance to passive flexion
# Resistance to passive flexion
# Clonus
# [[Clonus of the Ankle Test|Clonus]]


==== Tendon jerk ====
==== Tendon jerk ====
The [[Biceps Brachii|biceps]], [[Triceps brachii|triceps]], patellar, or [[Achilles Tendinopathy|Achilles]] tendon could be chosen for testing. Ensure sufficient force is used while tapping the tendon so as to elicit a 'maximal' [[Reflexes|reflex]] jerk and compare the result with the unaffected limb.<ref name=":0" />
The [[Biceps Brachii|biceps]], [[Triceps brachii|triceps]], [[Patellar tendon tear|patellar]], or [[Achilles Tendinopathy|Achilles]] tendon can be tested. Ensure sufficient force is used while tapping the tendon so as to elicit a 'maximal' [[Reflexes|reflex]] jerk and compare the result with the unaffected limb.<ref name=":0" />
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The resistance felt during this test allows the examiner to evaluate the hyperactivity of the tonic stretch reflex. The stretch must be performed at moderate speed (>100 degrees per second).<ref name=":0" />
The resistance felt during this test allows the examiner to evaluate the hyperactivity of the tonic stretch reflex. The stretch must be performed at moderate speed (>100 degrees per second).<ref name=":0" />


Note the presence of contractures and/or a clasp-knife response before examination.<ref name=":0" />
Note the presence of [[Contracture Management in Spinal Cord Injury|contractures]] and/or a clasp-knife response before examination<ref name=":1" />.
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|Maximally increased resistance
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This item is doubly weighted due to its close relation to hypertonus.<ref name=":0" />
This item is doubly weighted due to its close relation to hypertonus.


==== Clonus ====
==== Clonus ====
On rapid flexion of the wrist or [[Clonus of the Ankle Test|ankle]], the examiner notes the number of beats of clonus (if present).<ref name=":0" />
On rapid flexion of the [[Wrist & Hand|wrist]] or [[Clonus of the Ankle Test|ankle]], the examiner notes the number of beats of clonus (if present).<ref name=":0" />
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=== Reliability  ===
=== Reliability  ===
The CSI has excellent test-retest reliability (r = 0.87).<ref>Levin MF, Hui-Chan CW. Conventional and acupuncture-like transcutaneous electrical nerve stimulation excite similar afferent fibers. Arch Phys Med Rehabil. 1993 Jan;74(1):54-60.</ref>
The CSI has excellent test-retest reliability (r = 0.87)<ref>Levin MF, Hui-Chan CW. [https://pubmed.ncbi.nlm.nih.gov/8420521/ Conventional and acupuncture-like transcutaneous electrical nerve stimulation excite similar afferent fibers]. Arch Phys Med Rehabil. 1993 Jan;74(1):54-60.</ref>.


=== Validity  ===
=== Validity  ===
The CSI is valid for the examination of spasticity in elbow flexors.<ref>Levin MF, Feldman AG. The role of stretch reflex threshold regulation in normal and impaired motor control. Brain Res. 1994 Sep 19;657(1-2):23-30.</ref>
The CSI is valid for the examination of spasticity in elbow flexors.<ref>Levin MF, Feldman AG. [https://pubmed.ncbi.nlm.nih.gov/7820623/ The role of stretch reflex threshold regulation in normal and impaired motor control]. Brain Res. 1994 Sep 19;657(1-2):23-30.</ref>


=== Responsiveness  ===
=== Responsiveness  ===

Revision as of 12:18, 21 August 2022

Objective[edit | edit source]

The Composite Spasticity Index (CSI) is used for the quantification of spasticity in hemiparetic limbs.[1]

Intended Population[edit | edit source]

It is intended for use in patients with stroke[1], spinal cord injury and cerebral palsy[2].

Method of Use[edit | edit source]

The CSI has three components:

  1. Tendon jerk
  2. Resistance to passive flexion
  3. Clonus

Tendon jerk[edit | edit source]

The biceps, triceps, patellar, or Achilles tendon can be tested. Ensure sufficient force is used while tapping the tendon so as to elicit a 'maximal' reflex jerk and compare the result with the unaffected limb.[1]

0 No response
1 Normal response
2 Mildly hyperactive response
3 Moderately hyperactive response
4 Maximally hyperactive response

Resistance to passive stretch[edit | edit source]

The resistance felt during this test allows the examiner to evaluate the hyperactivity of the tonic stretch reflex. The stretch must be performed at moderate speed (>100 degrees per second).[1]

Note the presence of contractures and/or a clasp-knife response before examination[2].

0 No resistance (hypotonic)
2 Normal resistance
4 Mildly increased resistance
6 Moderately increased resistance
8 Maximally increased resistance

This item is doubly weighted due to its close relation to hypertonus.

Clonus[edit | edit source]

On rapid flexion of the wrist or ankle, the examiner notes the number of beats of clonus (if present).[1]

1 Clonus not elicited
2 1-3 beats of clonus elicited
3 3-10 beats of clonus elicited
4 Sustained clonus

Interpretation[edit | edit source]

The composite score (sum of scores from each component) is used to ascertain the severity of spasticity.[1]

0-9 Mild
10-12 Moderate
13-16 Severe

Evidence[edit | edit source]

Reliability[edit | edit source]

The CSI has excellent test-retest reliability (r = 0.87)[3].

Validity[edit | edit source]

The CSI is valid for the examination of spasticity in elbow flexors.[4]

Responsiveness[edit | edit source]

The responsiveness of the CSI has not been studied.

Links[edit | edit source]

A copy of the outcome measure can be found here.

References[edit | edit source]