Growing Spine Case: 5-Year-old with Increasing Spinal Deformity

History
A 5-year-old male, with an uncharacterized congenital myopathy, presented for increasing spinal deformity. He was ambulatory, but was having some recent "balance" issues, which the parents reported as frequent falling due to spinal and trunk imbalance, although the patient was also afflicted with "unstable" knees, for which he wore braces to aid stability.

The patient's family history was notable for an older sibling with a similar myopathy, who was more severely involved and currently wheelchair bound. His review of systems was otherwise unremarkable, and there was no history of respiratory impairment, frequent upper respiratory infections, or other infections. A brace had been prescribed by another physician, but was not tolerated due to pain from pressure over the rib prominence.

102-degree thoraco-lumbar curve with significant kyphosis