Combined posterior flap and anterior suspended flap dacryocystorhinostomy: a modification of external dacryocystorhinostomy

ABSTRACT

External dacryocystorhinostomy [DCR] remains a reliable surgical technique for the treatment of obstruction of lacrimal drainage system beyond the common canalicular opening. To describe a simple modified double flap external DCR technique. Ninety six consecutive cases of chronic dacryocystitis with or without mucocele were selected irrespective of age and sex. In a modification to routine external DCR, a modified technique was followed, where both anterior and posterior flaps of lacrimal sac and nasal mucosa are created and sutured. Two double armed sutures were used to join the edges of anterior flaps, and elevate them anteriorly to avoid adhesion or apposition with underlying sutured posterior flaps, and to approximate the deep plane of the wound. At the end of average follow-up period of 13 months, we observed 98.9% objective and 95.8% subjective success rates. The average operation time was 45 minutes. No significant intraoperative or postoperative complications were noticed. We believe that combined posterior flap and anterior suspended flap DCR technique is simple to perform and has the advantage of both double flap DCR and anterior suspension of anterior flaps. The results of the study showed the efficacy of this simple modification