Lumbar lateral canal stenosis is a narrowing of the lumbar lateral canal. Lateral canal is a part of the nerve canal which runs from medial edge of the superior articular process to the foramen. This is usually acquired. We made nerve root infiltration and block for 19 cases who were diagnosed as lateral canal stenosis by clinical and radio-logic presentations. Nerve root block and a lasting effect on 5 cases, but did not have a much effect on cases which showed complete block of nerve root infiltration. There were not significant differences in clinical and physical presentations between effective and non-effective cases.
