[Objective] To investigate the surgical method of transforminal lumbar interbody fusion(TLIF)technique in treatment of upper lumbar intervertebral disc herniation.

Clinical observation of lumbar interbody ectatic fusion cage for treatment of lumbar vertebrae;

Analysis of technique on double oblique positions of lumbar vertebrae;

Percutaneous expanding fusion of Interspace of lumbar vertebrae under local anaesthesia for the treatment of degenerative diseases of lumbar vertebrae;