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Case Review #A: 13 year old female with Adolescent Idiopathic Scoliosis


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A 13 year old girl presented with 59° left lumbar curve. Dr. Pashman treated her with an anterior spinal fusion L1-L3.

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Case Review #A: 13 year old female with Adolescent Idiopathic Scoliosis

  1. 1. Case Review: Adolescent Idiopathic Scoliosis Lumbar curve treated with an anterior spinal fusion59° Robert S Pashman, MD Scoliosis and Spinal Deformity Surgery
  2. 2. Patient history13-year-old female59º left lumbar curve with apex L2.The patient has a stiff lumbrosacral fractional curvewhich bends out to approximately 17º preoperatively.The thoracic curve is compensatory bending out to15º. There is a marked rotation of the lumbar spineand decompensation to the left.
  3. 3. Indications for Surgery Progressive Adolescent Idiopathic Scoliosis. Primary lumbar compensatory thoracic fractional lumbrorsacral curve. 59º curve Left decompensation.59°
  4. 4. Bending X-rays Bending x-rays are taken to reveal how flexible the curve is and can give some prediction of the amount of correction that can be obtained with surgery. Note minimal correction of fractional lumbrosacral curve on right side bending. R
  5. 5. Surgical StrategyThe operative strategy was a short segment instrumentation aroundthe apex, L1 to L3 which depended on the intraoperative stretchand bending x-rays. Especially worrisome is the fixed lumbrosacralfraction curve with inability to correct. Therefore, the overall correctionwill not surpass 17 º because of the fear of decompensating the patientto the left. There was a possibility that repeat instrumentation fordecompensation would be required and the family was advised of thispre-op.1. T11 retropleural, retroperitoneal thoracabdominal approach to the thoracolumbar spine was utilized2. Complete discectomy at L1-2 and L2-3.3. Segmental spinal instrumentation L1 to L3 using the Kass double screw staple rod construct for correction.4. Anterior interbody fusion, L1-2, L2-3 with autogenous T11 rib bone graft.
  6. 6. Surgical Outcome Surgical Strategy 1. Short instrumentation 2. Instrumented curve completely corrected, although overall lumbar curve corrected to 40º (47% correction). 3. Over correction avoided to lessen the chances of exacerbating the left decompensation.40°
  7. 7. Pre-op/Post-op X-ray comparison A 19º correction obtained. 32% correction) Coronal balance improved. (decompensation is less) Curve stabilized. 59° Minimal vertebra 40° fused.
  8. 8. Pre-op/Post-op X-ray comparison Note that there is no loss of lumbar lordosis.