Spinal fusion augmented by luque-rod segmental instrumentation for neuromuscular scoliosis.

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Abstract
Seventy-four patients who had deformity of the spine secondary to a neuromuscular disorder were treated using posterior fusion with Luque-rod segmental instrumentation. The mean curve was 73 degrees preoperatively and 38 degrees postoperatively. The mean loss of correction was 4 degrees at an average duration of follow-up of forty-two months (range, 2.0 to 7.3 years). Complications included one death, three deep wound infections, two pressure sores, six sets of broken rods, and one instance of distal rotation and migration of the rod. There were no major perioperative neurological complications. Failure of instrumentation occurred more frequently with 3/16-inch (4.8-millimeter) diameter than with 1/4-inch (6.4-millimeter) diameter stainless-steel rods. There was a tendency for cephalad progression of deformity when the fusion ended cephalad at or below the fourth thoracic vertebra. We concluded that Luque-rod segmental instrumentation with posterior spinal fusion is an effective treatment for patients who have neuromuscular scoliosis.

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