title: Dacryocystorhinostomy utilizing an anterior lacrimal sac flap to periosteum technique.
abstract: Dacryocystorhinostomy is used in the effective treatment of epiphora secondary to obstruction of the lacrimal drainage system. Common causes of obstruction include canalicular disruption, lacrimal sac fibrosis, and external and internal nasal trauma. Most techniques of dacryocystorhinostomy attempt to suture the lacrimal sac mucosa to the nasal mucosa. At best this is technically difficult, and the mucosa frequently tears. A technique is presented using an anteriorly based lacrimal sac pedicle flap sutured to the periosteum of the anterior lacrimal crest. The sutured flap is quite strong, and the procedure is technically simpler than others. A brief description of the causes of lacrimal obstruction is given. The Jones primary and secondary dye tests for lacrimal system patency are reviewed.
mesh_terms: D006801:Humans; D007765:Lacrimal Apparatus / Q000033:anatomy & histology / Q000502:physiology / Q000601:surgery*; D007766:Lacrimal Apparatus Diseases / Q000175:diagnosis / Q000601:surgery; D008722:Methods; D009295:Nasal Bone / Q000601:surgery*; D009297:Nasal Mucosa / Q000601:surgery; D010521:Periosteum / Q000601:surgery*; D013524:Surgical Flaps