This video shows an intra-operative procedure of trans-spinous lumbar decompression.
This information has been taken from Results following lumbar decompression with and without discectomy: comparison of the transspinous and conventional approaches, a manuscript that can be read here: http://journals.lww.com/neurosurgery/… . It was submitted by corresponding author Lawrence S. Chin, M.D. of the Department of Neurosurgery at Boston Medical Center.