534 - Thoracic Pedicle Subtraction Osteotomy in the Treatment of Severe Pedi...

#534 Thoracic Pedicle Subtraction Osteotomy in the Treatment of Severe Pediatric Kyphotic Deformities

Pediatric Spine

Poster Presented by: M.E. Inanmaz


M.E. Inanmaz (1)
K.C. Kose (1)
C. Isik (2)
H. Basar (1)
I. Caliskan (1)
E. Bal (1)

(1) Sakarya University, Adapazari, Turkey
(2) Bolu Izzet Baysal University, Bolu, Turkey


Introduction: The aim of this study is to determine the safety and efficacy of posterior thoracic pedicle subtraction osteotomy (PSO) in the treatment of severe kyphotic/kyphoscoliotic pediatric deformities.

Method: A retrospective review was performed on 6 consecutive pediatric patients (5 F, 1 M) treated by means of a posterior thoracic PSO between 2009 and 2011 in a single Institution.

Results: The average age was 11.8 years (range 7-14 years). Five patients had kyphoscoliosis and one had kyphosis alone. The average follow-up was 15.5 months (12-20). The average preoperative kyphosis and scoliosis angles were 82.1 (range 40-105) , 68.3 (range 8-132) respectively . ). The average last follow-up kyphosis and scoliosis angles were 38.3 (20-60) and 18.8 (0-40) respectively. There was 54% correction of kyphosis and 72.5% correction of scoliosis. There was one case with a temporary paraplegia which recovered near completely in 6 months. There were no neurological deficits in the remaining patients. There were no early superficial or late deep infections, instrument-related complications or pseudoarthrosis.

All patients were found to be well compensated regarding the overall sagittal contour and global coronal alignment at the last follow-up.

Conclusion: Posterior-based thoracic pedicle subtraction osteotomies should be done with neuromonitorization and represent a valuable tool in the surgical treatment of severe pediatric spinal deformities.