Sciatica is the common term for lower back pain that radiates down one leg.  It is a very frequent cause of missed work and disability.  Sciatica is almost always caused by a lumbar disk that has been pushed out of its normal location and is impinging on a nerve. The typical treatment for sciatica is anti-inflammatory pain medication and physical therapy.  Most patients recover entirely with this conservative therapy.  For those who continue to have pain, injections to numb the effected nerve f...