Two-stage treatment of idiopathic scoliosis using the LSZ growing system with a 10-year follow-up: a case report

A clinical case of an 11-year-old patient with idiopathic scoliosis treatment using the LSZ growing system. The main thoracic curve was 88 degrees, with a lumbar curve of 52 degrees. The patient was at Risser stage 3. At the first stage, posterior correction and instrumentation (T1-L5) of the deformity using the LSZ growing system were performed. Residual deformity of the spine was 15 degrees. At a follow-up, the spine grew by 5 cm. As the second stage of surgical treatment, this system was removed and replaced with selective instrumentation at T4-T12. The patient was followed up for 10 years. On the control radiographs of the spine in the standing position in 2021, adequate correction is preserved. That described technique allowed to ultimately perform selective definitive instrumentation, preserving near full range of movement in the lumbar spine. Further studies are needed to determine the effectiveness of the described approach.