Spinal Surgery in Spinal Muscular Atrophy

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Abstract
Fifteen patients with surgical treatment of spinal muscular atrophy were reviewed. The curve pattern was thoracic in 3, thoracolumbar in 11, and double thoracic and thoracolumbar in 1. Follow-up averaged 31 mo. Eleven patients underwent posterior spinal fusion with Harrington instrumentation, with segmental wiring in 4 and 2 had Luque instrumentation. The average age at time of surgery was 14.4 yr. The average curve correction was 48%; that with the pelvic obliquity corrected, 63%. Surgery is best done when the curve is .apprx. 50.degree.-60.degree., and Luque sublaminar wiring of Harrington or Luque rods with no external support appears to be the procedure of choice.

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