Yuan CS, et al. - Researchers investigated 3 cannulated screw insertions for subtalar fusion ie, screw insertion with the most uniform stress distribution (group A), lateral-medial parallel screw insertion (group B), and traditional longitudinally parallel screw insertion (group C) to obtain the ideal screw insertion and also to estimate its impact on the clinical efficacy of subtalar fusion by analyzing the effects of different cannulated screw insertions on the stress distribution, anti-rotary strength, and anti-inversion/eversion strength of subtalar joint. They observed group B, a safe and accurate one, with benefits like easy localization and operation during surgery, and a high fusion rate after surgery.