KMID : 0360220230640121127
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Journal of the Korean Ophthalmological Society 2023 Volume.64 No. 12 p.1127 ~ p.1135
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Surgical Outcomes of Hammer-Chisel and Drill Techniques to Create Superior Bony Ostium During Endoscopic Dacryocystorhinostomy
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Lee Hye-Jin
Oh Jun-Ho Kang Yong-Koo Kim Dai-Woo Son Byeong-Jae
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Abstract
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Purpose: We introduce a ¡°cold steel¡± hammer-chisel technique for endoscopic dacryocystorhinostomy, then compare postoperative outcomes between this technique and a drill technique.
Methods: This study included 191 patients (297 eyes) with nasolacrimal duct stenoses or obstructions who underwent endoscopic dacryocystorhinostomy using the hammer-chisel or drill technique. Surgical outcomes were compared via follow-up screening for epiphora and anatomical complications such as granuloma and fibrous membrane formation, canalicular obstruction, and synechiae.
Results: Postoperative anatomical complications occurred in 29 eyes (18.6%) in the hammer-chisel group and 51 eyes (36.2%) in the drill group (p = 0.001). The anatomical failure rate was higher in the drill group [28 eyes (19.9%)] than in the hammer-chisel group [18 eyes (11.5%); p = 0.038]. Functional failure was observed in 13 eyes (8.3%) in the hammer-chisel group and 13 eyes (9.2%) in the drill group (p = 0.787). The mean operation time was significantly longer in the drill group (35.5 ¡¾ 10.4 minutes vs.
25.4 ¡¾ 9.1 minutes) (p < 0.001).
Conclusions: During endoscopic dacryocystorhinostomy, osteotomy with a hammer-chisel is more successful and leads to fewer complications than osteotomy with a drill.
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KEYWORD
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Cold steel, Dacryocystorhinostomy, Drill, Hammer-chisel
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