Abstract:Abstract: [Objective] To explore the effective of posterior spinal bone-disc-bone osteotomy (BDBO) for congenital spinal deformity in young children. [Methods]The clinical data of 32 young children with congenital spinal deformity treated with posterior BDBO method from January 2003 to June 2017 were analyzed retrospectively. These patients with a mean age of(4.38±3.97) years old (range: 15 days to 15 years old).The anteroposterior and lateral X-ray films of the whole spine in standing position or supine position were taken before operation,postoperative and the last follow-up.The correction of deformity was evaluated by measuring the angle of scoliosis and kyphosis (Cobb angle).The time of operations and intraoperative blood loss,the late complication were recorded.[Results]The mean operative duration and blood loss were (239.44±48.19)min and (304.38±150.10) ml. All the children were followed up for 2 to 13 years, with an average of (5.90±2.76)years. The mean preoperative, postoperative and the last follow-up Coronal Cobb angle were (40.13±18.27)°, (10.44±6.04)°, (8.84±6.98)°, kyphosis Cobb angle were (29.72±20.66)°, (8.84±12.67)°, (5.91±16.55)°.Statistical analysis showed that the differences between preoperative and postoperative were significant(P<0.05).No spinal cord injury or pedicle fracture occurred in all children. One case underwent internal fixation removal because of repeated incision infection and non-healing after operation. [Conclusions] Posterior spinal BDBO for congenital spinal deformities in children has a good effect. It is more suitable for early mild congenital spinal deformities and lumbosacral hemivertebra, and can avoid ilium fixation.