[Dacryocystorhinostomy. Retrospective study of 165 cases. Indications. Technic. Results. Comparative study of 25 cases of injury with 165 cases including all etiologies]. / La dacryocystorhinostomie. Etude rétrospective de 165 cas. Indications. Technique. Résultats. Etude comparée de 25 cas traumatiques à 165 cas toutes étiologies confondues.

A retrospective study of 165 cases of dacryocystorhinostomy (DCR) has been performed in order to establish a relationship between the results and the delay between the initial symptoms and the DCR. The study compares the results obtained in 25 cases of DCR performed for post traumatic injury to those obtained in 165 cases of DCR performed for various etiologies (traumatic cases included). Traumatic cases are more frequent in men 19/ 25 cases (73%); infectious etiologies are more frequent in women 98/ 118 cases. The results are nearly the same for all the etiologies: 87% good results for the overall (147 cases), 88% good results for the traumatic cases (24 cases). The stenosis occurs within the first month in 72% and before the fourth month in all the cases. There is no difference in the results according to the surgical technique however the small number of each group does not allow a statistical analysis. The results are better when the delay between the initial traumatism or the first surgical repair and the DCR is more than six months (15 good results for 15 cases). The results were worse when the delay is less than 6 months (6 success for 9 cases), with p = 0.07 in the statistical analysis.