Pan C, et al. - In order to find out the relationships between the inflection point (IP) and spinal sagittal parameters and to establish the corresponding linear regressions in asymptomatic adults, researchers included a sum of 205 asymptomatic individuals older than 18 years between April 2017 and September 2019. They obtained a full-spine, standing x-ray for each individual. In asymptomatic adults, the IP was significantly associated with spinal sagittal alignment. Furthermore, they developed predictive formulae for sagittal parameters as a function of the IP, which are important for surgeons in comprehending the regulatory mechanisms of spinal sagittal alignment and designing an ideal therapeutic plan.