Hi my name is Niranjan Kavadi. I am a spine surgeon. The pathology can be better appreciated by looking at the images but if the stenosis is at so many levels as you have described, disc replacement is definitely not the best option. Your options depend on what your symptoms are. Cervical stenosis can lead to myelopathy, radiculopathy or both. Myelopathy is a compression of the spinal cord and leads to changes in the gait pattern. The gait becomes wide based and spastic. Fine hand functions decline and grip strength worsens over time. Radiculopathy is a symptom of nerve root compression and leads to pain and numbness in the arm. With multilevel stenosis like yours symptoms and signs usually point to myelopathy. Early surgery is recommended in myelopathy and has been shown to arrest the progression of myelopathy and worsening of symptoms. It is unlikely but if your symptoms are of radiculopathy you can chose to wait and tray pain management. Regarding surgical options, again viewing the images is necessary but generally if the cervical spine is lordotic which means the neck is swayed backwards with the convexity of the curvature in front and 3 or more levels are involved approach from the back of the neck is preferred. Again to be honest each case is different and the decision needs to be individualized based on evaluation of images.