1. Yusuke Oshita　Wrong-Site Surgery in Lumbar Spine Operations: A Nationwide Analysis of 69 Cases Reported to the Japan Council for Quality Health Care

1. Yusuke Oshita 　Assessment of Lumbar Intervertebral Disc Degeneration in Collegiate Rugby Players Using the Disc Signal Intensity Index (DSI2)

Kazumichi Yagura　Anterior wall perforation and cranially directed trajectory of pedicle screws are the risk factors for upper instrumented vertebral fracture after spinal fixation in patients with osteoporotic vertebral fracture

Shu Takahashi　Influence of Dorsal Root Ganglion Position on Outcomes of Microendoscopic Lumbar Foraminoplasty at L5/S1