Objective To study the beneficial effects of diminishing intraoperative bleeding by applying the reformative prone-positioning cushion in surgery on lumbar spine.

Influence of improved clinostatism on cleaning enema times and its clinical application;

Effects of high-chest prone position manipulation therapy in cervicals pondylopathy;

Influence of oxygen inhalation in prone position on oxygenation of patients with chronic obstructive pulmonary disease in attack period;

Effects of spinal operation at prone position on lower limb peripheral venous pressure;

Clinical study of the ways for the eye protection during spinal surgery in prone position.;

Treat lumbar discs herniation and lumbar spinal stenosi by microendoscopic discectomy on kneeling-bow position;