Treatment of lumbar spondylolisthesis with neurological injury by regrafted laminae and transpedicular screw!system integrated fixation;

Clinical evaluation of replantation of lamina and spinous process during laminoplasty in posterior thoracolumbar operation;

Individualized localization of the lumbar pedicle screw entrance points by vertebral plate borderline;

Radiographic anatomy study and clinical significance of relationship between superior level and lateral border of vertebral plate to pedicle of vertebral arch in thoracic and lumbar spine;