Lumbar Wedge Resection Osteotomy for Congenital Scoliosis due to a Sacral Malformation

Congenital scoliosis due to a sacral malformation is quite rare. To the best of our knowledge, most wedge resection osteotomies have been performed to correct a kyphotic deformity in ankylosing spondylitis. However, there is no report of a trapezoidal lumbar wedge resection osteotomy of the vertebral body in the surgical treatment of congenital scoliosis due to a sacral malformation. This paper reports a 41-year-old female with a 25-year history of lower back and buttock pain combined with radiating pain to the lower extremities. The coronal imbalance was 3.8 cm and the scoliosis angle using the Cobb method was 22°. A trapezoidal wedge resection osteotomy of the LS body was performed, and the scoliosis was corrected. We detail this modification of a vertebral osteotomy technique and show that a fixed coronal deformity could be corrected effectively using this technique.