Objective:To study the operative technique and effect of microsurgical discectomy in removing nucleus pulposus in protruding intervertebral discs.Mothods:A 3-centimeter median incision was made and the vertebral gap and part of the upper and lower vertebral plates were unfolded.Then the ligamentum flavum and a little vertebral plate were excised and the nerve root canal was enlarged and the nucleus pulposus in protruding intervertebral discs was removed.Results:The microsurgical discectomy for removal of nucleus pulposus in protruding intervertebral discs was performed on 42 patients

which showed a recovery rate of 95%

without any complications.Conclusions:The microsurgical discectomy for removal of nucleus pulposus in protruding intervertebral discs have the following advantages: smaller incision and hurt

less hemorrhage

convenience for operation

less physiological influence on spinal column

lower cost

and earlier recovery of the patients in motion and work.