Femoral and sciatic nerves block (BiBlock) in orthopedic traumatologic lower limbs surgery in patients with multiple sclerosis.

Multiple sclerosis is a progressive demyelinating disease which affects large areas of the brain and of the spinal cord. Stressful events, surgical procedures, general anaesthesia and central blocks seem to be responsible for relapses, with worsening of the disease. So, when we scheduled 2 patients with multiple sclerosis for lower limbs orthopedic traumatologic surgery, we decided to use a peripheral block, and in particular a BiBlock. The patients' evaluation in the immediate postoperative course and 30 days after surgery has shown no relapses of the disease. In the literature, however, data about anaesthesia and multiple sclerosis are few and controversial, sometimes in contrast. Anyway, the use of peripheral blocks has neither anatomic, nor metabolic interferences with the lesion sites of multiple sclerosis. In conclusion, peripheral block is safe and it is the technique of choice for this type of patients, when surgery allows it.