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Abstract
To describe and test the intraoperative integrity of triplanar sclerotomies.A prospective consecutive case series of 180 sclerotomies in 60 eyes was studied. After conjunctival dissection, triplanar transscleral wounds were created with a 23-gauge trocar using a standardized technique. At the conclusion of surgery, an air-fluid exchange was performed, and cannulas were removed. Then, unsutured scleral wound integrity was tested for permeability to vitreous, gas, and fluid by application of a cellulose sponge, observation of gas escape, and examination by the Seidel method, respectively. Postoperative intraocular pressure was recorded. Laboratory studies with fresh human donor globes were conducted to evaluate the histologic characteristics of triplanar sclerotomies.Unsutured triplanar wounds were closed to vitreous, gas, and fluid in 169 of 180 sclerotomies (93.9%). Eleven sclerotomies were open and showed positive results using only 1 testing method each. In these cases, vitreous was detected in 1 wound, gas escaped from 8 wounds, and Seidel test results were positive in 2 wounds. Complex retinal detachment repairs had a higher rate of wounds requiring suture placement. One patient had transient postoperative day 1 hypotony.It is possible to achieve high rates of unsutured wound closure with triplanar transscleral sclerotomies. No single method of evaluating wound leakage appeared to be the most sensitive. More complex cases requiring longer surgical times, more instrument passes, and increased wound manipulation resulted in higher rates of wound leakage. Leakage can be subtle, and surgeons should use multiple methods to adequately assess sclerotomy closure.
View details for Web of Science ID 000290437100007
View details for PubMedID 21555611