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Objective. The aim of papewato develop and validate the accuracy and safety of thoracictranspediculascrew placemenwith patient-specifidrill template technique in scoliosis.Summary of Background Data. With the rapid increase in the use of thoracipedicle screwinscoliosis, accurate and safe placemenof screw within the pedicle icrucial step during thescoliosisurgery. To make thoracipedicle screw placemensafevarioutechniqueare used,Patient-specifidrill template with preplanned trajectory habeen thoughapromising solution,iicritical to assesthe efficacy, safety profile with thitechnique.