Posts Tagged ‘spinal curvature’

ScoliScore April 21st, 2010

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There is an interesting new non invasive technique discussed in the news recently that can predict how badly the spine will worsen in a person diagnosed with scoliosis.  Previous methods are simply to have a doctor regularly monitor the spine about two or three times a year to see if the spine curvature is gradually increasing.  This new test would give much more insight as to just how severe a patient’s scoliosis might be.

The new non invasive method is known as ScoliScore.  This test uses a patient’s saliva to screen over 50 genetic markers that are known to be associated with the progression of scoliosis.  It uses the results of the screenings to assign a calculated score.  A very low score would imply that the curvature of the spine is not expected to rapidly grow worse, and that it does not need to be monitored so closely.  On the other hand, a really high score would require more attention and treatment options should be discussed much sooner.  ScoliScore has been shown to work for genetic markers in Caucasian children.  Currently, research is being done to verify that it also works in African and Asian children as well.

Brenda Hom is a young girl diagnosed with scoliosis participating in this new study.  When the doctor told the mother, Joyce Hom that her daughter had about a 30 degree curvature of the spine she could only hope for the best that future checkups will show that it is not getting worse.  Hopefully, ScoliScore will be able to give an accurate prediction of the progression of scoliosis, rather than playing the waiting game.

This can prove to be an extremely useful test, as tens of thousands of children are diagnosed with scoliosis every year.  Unfortunately, this is still very new to the medical field and is not widely accepted.  This also means that most insurance companies will not cover the expensive cost of about $3,000 dollars to perform the test.  Hopefully, this kind of test will be accepted in the future and allow for people to better assess spine curvature progression and to discuss possible scoliosis treatment options earlier.

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Cobb’s Angle April 21st, 2010

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The Cobb’s angle is an important measurement in diagnosing scoliosis and determining what kind of treatment is needed, if any at all.  It is the measure of curvature of the spine affected by scoliosis.

To determine the Cobb’s angle of the spine, the vertebrae that is most displaced and rotated, with the least tilted end plates.  This is known as the apical vertebrae.  The end vertebrae above and below the apical vertebrae are identified next.  These have minimum displacement and rotation, but are most tilted from its original position.

Cobb's Angle

After all of these are identified, a line is drawn parallel to the plates of the end vertebrae that are furthest away from the apical vertebrae.  Next, two lines perpendicular to the first pair of lines are drawn towards each other until they intersect and form an angle.  This is known as Cobb’s angle.  Because this only measures scoliosis in one plane, this is not useful for spinal deformities in three dimensions.  The picture to the right shows an example of an X-ray scan with lines drawn to determine the Cobb’s angle.

This measurement is used to determine what the best course of action for treatment is.  In general, scoliosis is only diagnosed with an angle of curvature of at least 10 degrees.  Anything between 10 – 20 degrees should be monitored regularly to see that it does not get worse.  Between 20 – 40 degrees, a brace is most likely recommended.  Over 40 degrees of curvature, scoliosis surgery is the best course of action.

To sum it all up, see the table below:

Cobb’s Angle Course of Action
Below 10 Not Scoliosis
10 – 20 Regular Checkups
20 – 40 Body Brace
40 and up Scoliosis Surgery/Spinal Fusion
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