“…There are a number of disadvantages however with this technique: (1) at the point of correction the patient is given a brief anaesthetic thereby losing subjective spinal cord monitoring, (2) lack of airway control in the event of sudden emergencies, (3) risk of air embolism, and (4) difficulty in managing hypotension. Due to the advances in fibre optic intubation and somatosensory and motor evoked potential monitoring, general anaesthesia is now favoured by the patient, surgeon and the anaesthetist [5,7,9].…”