Hi,
Thank you for posting your query.
The decision to do fusion versus
discectomy depends on your clinical symptoms,
MRI findings and the surgeon's experience.
In your case, since the spine is unstable, i would also prefer doing a fusion.
If done by experienced neurosurgeons, the success rate is more than 95%.
I hope it helps. Please get back if you require any additional information.
Wishing you good health,
Dr Sudhir Kumar MD (Internal Medicine), DM (Neurology)
Senior Consultant Neurologist
Apollo Hospitals, Hyderabad, India
Click on this link to ask me a DIRECT QUERY: http://bit.ly/Dr-Sudhir-kumar
My BLOG: http://bestneurodoctor.blogspot.in