A 54 year old man presents with weakness and numbness of his left arm for 8 months. He also experienced some difficulty in walking, as he felt unbalanced and undexterous. His medical and family histories are unremarkable. He is not on any medications.
The X-ray shows decreased disc heights in the vertebrae C3 to C7, along with bony proliferation of the anterior bodies and articular processes, and varying degrees of foramen compromise.
There is cervical spinal stenosis affecting the vertebrae C3 to C7, with compression of the spinal cord
The color flow duplex scan of the left subclavian artery is completely normal.
Nerve conduction studies of the L/s ulnar and radial nerves are completely normal.