👉 A surgical procedure in which a surgeon cuts away parts of the spine to relieve pain and improve function. It's called "capsulectomy" because it involves cutting out or removing a portion of the spinal cord from one side of the body, like a cap being cut off at the top. This is done to treat conditions such as herniated discs (in which nerves are pushed into the space between two vertebrae) and degenerative disc disease (which can cause pain in the spine).