Electromagnetic navigation-guided posterior hemivertebra resection in adult congenital spinal deformity

Hemivertebra is a congenital spinal anomaly often associated with unpredictable progression of spinal deformity, for which early conservative or surgical intervention is generally recommended. While well-documented in pediatric populations, literature on the management of symptomatic adult congenital spinal deformity remains limited. We report two consecutive cases of adult congenital scoliosis caused by an L3 hemivertebra, both successfully treated with one-stage, electromagnetic navigation (EMN)-guided posterior total hemivertebra resection and instrumented spinal fusion. EMN-guided posterior total hemivertebra resection offers a safe and accurate solution for managing symptomatic adult congenital scoliosis, while also minimizing intraoperative radiation exposure. This technique highlights its clinical utility in achieving precise resection, as evidenced by the two presented cases.