Original ResearchPublished 7 October 2026Flexible expansive tubular endoscopic (Flextube) spine surgery for lumbar disc herniation: a case series of 35 patients with 6-month follow-upZhipeng Wang · Bin Zhang · Zhishen Niu · Qi Wang · Kaiqiang Sun · Yuanzhen Li · Jiangang Shi · Jingchuan SunFrontiers in Surgerydoi 10.3389/fsurg.2026.1939957