In a child with lumbar or sacral lesion and rapid scoliosis progression, which condition should be considered?

• A. Tethered Cord Or Hydromyelia
• B. Spinal Tumor
• C. Osteoarthritis
• D. Vitamin D Deficiency

Answer: (A)

When a child with a lumbar or sacral spinal lesion shows rapid progression of scoliosis, think about tethered cord syndrome (and hydromyelia). Tethering occurs when the spinal cord is abnormally attached or scarred, so as the child grows the cord experiences increasing stretch. That traction can drive worsening scoliosis and may bring new or worsening neurological symptoms in the legs or changes in bladder/bowel function. In kids with myelodysplasia or repaired myelomeningocele, tethered cord or related syringomyelia (hydromyelia) is a well-known, important cause of fast-developing spinal deformity, and recognizing it prompts MRI evaluation and often detethering surgery to prevent further deterioration.

Spinal tumors could cause scoliosis, but they’re less likely in this context of a known lumbar/sacral lesion and rapid progression tied to growth. Vitamin D deficiency and osteoarthritis don’t typically explain abrupt scoliosis progression in a child with a spinal lesion.