What is treatment for a patient having following MRI result? (a) Vertebrae are normal in size, shape, outline, alignment and show diffuse low signal intensity? fluorosis. (b) Mild hypertrophy of ligmentum flavum is seen atD11-12, L1-2 & L2-3 levels and posterior annular hypertrophy at L1-2, L2-3 & L4-5 levels. (c) Mild effacement of bilateral lateral recesses is seen at L4-5 level.