Question
For seven month I have had a progressing symtom in my leg locking-knee gets stiff and won't bend.  Making if almost impossible to walk.  This started on the right side and now is also starting on the leg side.  I can still walk on my heels, stand on one foot, flex ankle.  I have back pain but have had MRI on back/knee (nothing showed), cortisone shots on back/knee and nothing has helped.  Any suggestions on where to look next would be welcomed as I can barely walk at this point.

Answer
Susan,
Since the nerves that pass through every part of your body including your legs are located in the brainstem this would be the best place to look.  Your Brainstem is referred to as "Houston Control" of the body, and if there is an Upper Cervical Subluxation ( C1-C2 gets locked in the wrong position and interferes with the mental impulse between the brain and somewhere in the body).  
The Brainstem is like the fusebox in your house, if you have a problem that is not an easy fix, you go to the fusebox to see whats out.  The fusebox can be in the basement and your problem can be in the bedroom upstairs.  
With leg problems such as Restless Leg Syndrome, Sciatica, or Neuropathy, we have found that over 90% of the time the problem was in the Upper Cervical Spine.
We need to find you an Upper Cervical Specific Doctor of Chiropractic if you are ever going to get well.
If you would send me your town and state, I will reply in a couple of days with at least one quality contact for you to make an appointment with.
If there is an interference at the brainstem level and as a result of this also at the lower lumbar level, this very well could be the cause of your leg problems.
Yours in Best Health,
Dr Rob Arnone, DC
Upper Cervical Doctor of Chiropractic
"Brainstem Specialist"
711 Old Ballas Road Suite 104
Creve Coeur, MO 63141
314.995.5719