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.
Details. A water heater pilot light is used to ignite the gas that heats the water. You may go for a long time and not realize that your pilot light has been faithfully serving you. When the pilot light stops working you do not have hot water.Then you notice. A malfunctioning pilot light may be a sign of another problem.hey don't have a pilot light at all. Gas water heaters are equipped with a thermocouple. The thermocouple senses when the pilot light is lit. When the thermocouple goes bad it will not send the right signals to the gas valve. When that happens the gas valve will turn off and the burner will night light.