There is No Remarkable Difference Between Pedicle Screw and Hybrid Construct in the Correction of Lenke Type-1 Curves.

AIM: To compare the deformity correction success of segmental pedicle screw and hybrid instrumentation for the treatment of Lenke type-1 adolescent idiopathic scoliosis (AIS) curves. MATERIAL and METHODS: Surgically treated Lenke type-1 scoliosis patients were retrospectively evaluated and data of 26 patients treated with hybrid instrumentation were included in the first group. In this group, all patients had been operated with hooks at the thoracic part and transpedicular screws at the lumbar part. The second group included 26 patients operated with all segment transpedicular screws. Cobb angles of curves, flexibility, apical vertebral translation (AVT), coronal body balance, kyphosis and lordosis were measured. All measurements and correction ratios were compared between the groups. RESULTS: There were no significant differences between the two groups for preoperative thoracic and lumbar Cobb angles, thoracic and lumbar curve flexibility, coronal balance, AVT, kyphosis and lordosis. However, the postoperative thoracic correction ratio was significantly different between the two groups. CONCLUSION: Segmental screw instrumentation had better results for thoracic curve correction than hybrid instrumentation for the treatment of Lenke type-1 curves. Good results may be achieved with both techniques to provide sagittal balance.