Analysis on the efficiency and therapeutic effect of anastomosis for canalicular laceration by using modified worst probe

Abstract

Objective To investigate the necessity of modifying the traditional Worst probe and eval-uate its efficiency and therapeutic effect on searching the nasal cut end of lacerated lacrimal canaliculus in anas-tomosis for canalicular laceration.Methods 87 patients (87 eyes)suffering from canalicular laceration were randomized into group A and B.During the reconstruction of the lacerated canaliculi, the traditional Worst probe and the modified Worst probe were used to seek for the nasal cut end of lacerated lacrimal canaliculi,re-spectively.PICC silicone tube with 0.95mm diameter was intubated as a stent for 4 to 6 months.Follow-up ranged from 3 to 6 months after stent removal.Results In group B using the modified Worst probe,the prima-ry success rate of searching the nasal cut end of lacerated lacrimal canaliculi was 93.48%(43/46)and the final success rate was 97.83%(45/46 ).No pseudo-passage was created in all 46 patients in group B.Compared with the primary success rate and pseudo-passage creating rate of Group A, statistical significances were found (P 0.05).The mean time of searching the nasal cut end of lacerated lacrimal canaliculi was (5.02±2.73)minutes and the mean time of operation was(33.90±4.84)minutes, both were significant shorter than that of group A (P 0.05).Totally, 2 patients(2.30%)were found absent of common canaliculus in the two group.Conclusion Worst probe is still an efficient and convenient apparatus for searching the nasal cut end of the lacerated lacrimal canaliculus in the reconstruction of canalicular laceration.Necessary or proper modifications to the Worst probe can minimize the risk of iatrogenic trauma or complication and enhance the efficiency of canalicular anastomosis operation. Key words: Canalicular lacerations; Intubation; Anastomosis; Lacrimal apparatus/surgery