Spinal Fusions to the Pelvis Augmented by Cotrel-Dubousset Instrumentation for Neuromuscular Scoliosis

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Abstract
Eighteen patients with spinal deformity secondary to a neuromuscular disorder were treated with posterior fusion using Cotrel-Dubousset instrumentation (CDI) to the pelvis. The mean frontal plane curve was 70° preoperatively and 38° postoperatively. The mean loss of correction was 3° at an average follow-up of 28 months. Pelvic obliquity improved in nine patients from a pre-operative mean of 22° to 11° at follow-up. Lumbar lordosis was maintained with preoperative and postoperative means of −36°. Complications included perioperative hardware failure in one case and one late, deep infection. There were no neurologic complications, pseudarthroses, or rod breakage. Posterior spinal fusion with CDI to the pelvis is an effective treatment for patients with neuromuscular scoliosis.

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