Answer to the letter to the editor of S. Etigunta, et al. concerning "Flexible posterior vertebral tethering for the management of Scheuermann’s kyphosis: correction by using growth modulation: clinical and radiographic outcomes of the first 10 patients with at least 3 years of 3 Follow-up" by M. Aydogan, et al. (Eur Spine J [2024]: doi: 10.1007/s00586-024–08297-4)