Primary interventions were done in NSIC, with no major complication, for 36 patients. Nineteen patients operated on in the referring hospital (non-specialised units) before transfer to our centre. Early corrective surgery required for 10 of the total 19 patients due to spinal instability in five patients, non-union in two patients, CSF leak, infection in two patients and wrong level in one patient. A comparison between primary and corrective surgery performed in NSIC by the same surgical team showed that the average length of corrective surgery was 240 minutes, with 150 minutes for primary procedure. Blood loss: 1750 mls on average for corrective surgery, compared to 600 mls for primary intervention. Post-op mobilisation started on average five days after primary surgery and 20 days after corrective surgery. Period of rehabilitation – 16 weeks on average after primary surgery in NSIC, compared to 40 weeks after corrective surgery.