Risk of Progression


- See:
      - Unilateral Bar:
      - Segmented Vertebrae:
- Discussion:
     - many pts have mild curves that are stable for years and then suddenly become severe when the adolescent growth spurt begins;
     - approx 75% of pts w/ Congenital Scoliosis will show progression, & approx 50% will progress significantly and require treatment;
     - two or more hemivertebrae on the same side are likely to result in scoliosis that progresses as the child grows.
     - when 2 hemivertebrae exist on opposite sides, scoliosis may be slight.
     - failure of development of the anterior portion of one or more vertebrae results in Kyphosis.
- Prognosis for progression of Congenital Scoliosis depends on type of congenital deformity present, its location in the spine, & age of pt
    at presentation.
    - worst prognosis:  Unilateral Bar w/ contralateral hemivertebra;
    - followed by    :          Unilateral Bar
    - followed by    :          double hemivertebra on same side
    - followed by    :          single hemivertebra
    - followed by    :          wedged hemivertebra
    - best prognosis :       block  hemivertebra
         - progressive spinal deformity is rarely produced by block vertebrae, which are 2nd to bilateral failure of segmentation



Original Text by Clifford R. Wheeless, III, MD.

Last updated by Data Trace Staff on Tuesday, August 30, 2011 12:04 pm