Clinical results of arthroscopic tight fibrous band release for adult moderate-to-severe gluteal fibrosis using anterior and posterior portals: a retrospective analysis of 118 cons... oleh Shu-guang Gao, Wei-jie Liu, Ming Yang, Jing-ping Li, Chao Su, Shi-da Kuang, Jie-peng Xiong, Ke Chou, Zhi-yong He, Liang-jun Li