The spinal cord is generally 8-9mm wide. There should be CSF (cerebral spinal fluid-water that the spinal cord floats in) of at least 1mm in front of and in back of the cord. The dural sac (which holds in the CSF) is 1mm wide and sits in front and back of the cord. That makes a minimum of 12mm of space that should be present to protect the cord.
7mm of space is a very narrowed space for the cord. I generally would find that unacceptable.
Dr. Corenman
PLEASE REMEMBER, THIS FORUM IS MEANT TO PROVIDE GENERAL INFORMATION ON SPINE ANATOMY, CONDITIONS AND TREATMENTS. TO GET AN ACCURATE DIAGNOSIS, YOU MUST VISIT A QUALIFIED PROFESSIONAL IN PERSON.
Donald Corenman, MD, DC is a highly-regarded spine surgeon, considered an expert in the area of neck and back pain. Trained as both a Medical Doctor and Doctor of Chiropractic, Dr. Corenman earned academic appointments as Clinical Assistant Professor and Assistant Professor of Orthopaedic Surgery at the University of Colorado Health Sciences Center, and his research on spine surgery and rehabilitation has resulted in the publication of multiple peer-reviewed articles and two books.