With two purposes: Exploring the clinical characteristics and imaging of conventional X-ray, MRI of single-level lumbar spondylolisthesis in the indication for minimally invasive surgery using Caspar retractor system. Evaluating the results of treatment for single level lumbar spondylolisthesis by minimally invasive surgery with using Caspar retractor system.

Objectives: To assess results of transanal total mesorectal excision laparoscopic surgery for treatment of the middle and low rectal cancer. Subjects and method: Clinical intervention, prospective, follow-up study without comparison in 45 patients with middle and low rectal cancer underwent transanal total mesorectal excision in Gastrointestinal Surgery Department, 108 Millitary Central Hospital, from July 2017 to August 2018.

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Giant hepatic hydatid cyst with sub-fascial extension treated by open minimally invasive surgery: a case report