Bouloussa H, et al. - Researchers examined how preoperative rib cage parameters influence pulmonary function tests (PFT) using biplanar stereoradiography in patients with severe adolescent idiopathic scoliosis. Among 54 patients (45 girls and nine boys; aged 13.8 ± 1.2 years) with Lenke 1 or 2 thoracic scoliosis (> 50°) who required surgical correction, a high correlation was observed between rib cage volume (RCV) and all pulmonary capacities [total lung capacity, slow vital capacity and forced vital capacity]. Findings suggest a possible utility of rib cage volume measured by biplanar stereoradiography as a prediction tool for PFTs.