Experience in navigation system use in surgical treatment of the traumatic dacryocystitis recurrence (clinical case)
The article presents a clinical case of surgical of a recurrent chronic purulent dacryocystitisof traumatic etiology. Under endoscopic control, the patient underwent a revisional endonasal laser dacryocystorhinostomy with bicanalicular silicone stent. All surgical steps were controlled on the navigation system display. Navigation equipment was used to accurately visualize the structures of the nasal cavity and lacrimal pathways, because the anatomy of this area was changed as a result of the midface trauma and preliminary unsuccessful surgical procedures. During surgery, the functional and anatomical patency of the lacrimal pathways was achieved. Thus, the navigation system is a useful supplementary equipment that allows identifying the lacrimal sac in complex surgical situations, to monitor the state of lacrimal passages and surrounding nasal structures, which ultimately increases the effectiveness and safety of the procedure.