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.
This guide is not meant to be a comprehensive trouble shooting document, just a general guide to common water heating problems. Before trouble shooting your gas water heater check for the odor of gas. If you smell gas call your gas supplier immediately and have them check for leaks. Problem: No hot water. Remove the inner and outer burner access covers and Check to see if the pilot light is lit. If pilot light is not lit. Attempt to re-light pilot light following the instructions posted on your water heater.