Localization and infliction pattern of iatrogenic skull base defects following endoscopic sinus surgery at a teaching hospital

The obtained data confirm the safety of the endonasal sinus surgery according to Wigand's technique. The incidence of iatrogenic CSF leaks at a teaching hospital is not higher than at specialized rhinology departments. We observed a distinct pattern of inflicted skull base defects with different hot-spot areas, prone to damage in various stages of the surgeon's status of expertise.