There is at least 4mm of CSF anterior to the cord which give plenty of room and the canal measures 1.4 cm which is normal. Yes, there is a posterior protrusion of ligamentum flavum but the cord lies on this without compression. If the MRI was performed with you lying on your stomach, the cord wound not have contact with that “mound” but lie on the disc spaces without compression. I would not consider you to have stenosis and would not feel compelled to perform a posterior decompression.
Dr. Corenman