Removal of the right L4-5 free segment

Herniated disc disease occurs when a part of the disc, a structure located between the lumbar vertebrae, dislodges or breaks off and puts pressure on the nerve root. The dislodged part can compress the nerve from the back, shoulder, armpit, or by entering the canal through which the nerve passes.
This surgery shows a fragment of the disc that detached from the right L4-5 disc space compressing the L5 nerve root on its dorsum. The video shows the removal of the detached fragment compressing the L5 nerve root after removing the upper portion of the spinal canal, thus freeing the L4-5 disc space. For ease of understanding, I have marked the nerve root, the disc space, and the removed disc fragment on the video.