Corrigendum: Treatment of avulsion fracture of posterior cruciate ligament tibial insertion by a minimally invasive approach in the posterior medial knee - Guo, Huihui; Yao, Zhao; Gao, Liang; Wang, Chen; Shang, Xianbo; Fan, Haitao; Cheng, Wendan; Liu, Chang (Frontiers in Surgery, 2023)