presents
Wheeless' Textbook of Orthopaedics
www.wmt.com
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Double Major Curves



- See: Scoliosis Menu:

- Discussion:
    - frequently double curves balance out & do not produce cosmetic deformity;
    - they do not tend to progress unless > 60 deg at skeletal maturity;
    - operative indications:
            - marked progression of curves;
    - disadvantages of surgery:
            - instrumentation must be applied to almost the entire spine;
            - long spinal fusions may lead to:
                  - degenerative changes below level of fusion leading to chronic pain;
                  - pseudarthrosis
                  - loss of lordosis;
                  - kyphotic deformity:
                        - develops secondary to degeneration of the discs;
                        - esp common in females approaching menopause;
                        - because kyphosis may narrow of spinal canal, secondary spinal stenosis may also develop as well;










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