Objective To summarize the operative methods and treatment results of lubar intervertebral disc protrusion . Methods From June 1988 to August 2004, were operated treatment 150 cases, L4/5 102 cases,L5/S1 36 cases, L3/4 12 cases, two lubar intervertebral disc protrusion in 6 cases, whole of laminectomy 36 cases, half of laminectomy 90 cases, window casement lamina of vertebral arch 24 cases. Results The patients were followed up from half to 3 years, The results were excellent in 132 cases, good in 15 cases,...