Growth friendly surgery for early onset scoliosis is meant to control spinal deformity, and allow for continued growth of the spine and chest, thereby providing the patient with as much lung function as possible. Once patients have completed their growth friendly surgery, they either undergo a final spinal fusion, or observation, and at this point are referred to as "graduates" of growth friendly surgery. Pulmonary function tests can objectively assess the pulmonary function of patients. PFTs are commonly performed in an outpatient clinic, but require a clinic appointment, transportation, test administration and insurance billing with or without a copay. Several home-based surrogates for PFTs are available on the market. These devices can be used within the convenience of the patients home, and are compatible with apps on most smartphones. The data can be uploaded to a clinician in real time for review and analysis.
The purpose of this study is to evaluate the ease of use and effectiveness of a home based PFT surrogate (Spirobank smart device) for "graduates" of growing programs with early onset scoliosis.

This study aims to study children with Early Onset Scoliosis who undergo implantations of a magnetic growing rod, to see if any differences that exist between lengthening the rod every 6 weeks or 4 months.