STUDY DESIGN: Retrospective review of a large series of patients who underwent spinal surgery at a single institution during a 10-year period. OBJECTIVES: To further clarify the frequency of incidental durotomy during spine surgery, its treatment, associated complications, and results of long-term clinical follow-up.SUMMARY OF BACKGROUND DATA: Incidental durotomy is a relatively common occurrence during spinal surgery.ncidental durotomy occurred at the time of surgery in 66 patients (3.1% overall incidence). Incidence varied according to the specific procedure performed but was highest in the group that underwent revision surgery.
Dirty thermocouple: If you can light your pilot light, but the water heater pilot keeps going out, there are many possible causes. One of them is a dirty thermocouple. When you have a problem with your water heater not lighting, look at your water heater pilot light. Inspect the thermocouple to determine if it is dirty.
Check your water heater to make sure the pilot light is still on (check your ownerâs manual if you need helping finding the pilot light, as it is well hidden). If the pilot light is out, then you should follow the manufacturerâs instructions for how to re-light it. Gas hot water heaters.If you have a gas hot water heater, then your problem may be caused by a leak in the gas line leading to the appliance. If this is the case, you may notice a rotten egg smell around the water heater.This is a very dangerous problem and should only be handled by professionals, so call your plumber immediately.heck your water heater to make sure the pilot light is still on (check your ownerâs manual if you need helping finding the pilot light, as it is well hidden). If the pilot light is out, then you should follow the manufacturerâs instructions for how to re-light it. Gas hot water heaters.