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        Flapless and transconjunctival double knot technique to repair iridodialysis

        2022-03-25 00:28:28XinHuBoZhaoHaiYingJin
        關(guān)鍵詞:古木屏風(fēng)造景

        Dear Editors,

        2.2 兩組患兒膽紅素水平比較 治療前,兩組患兒TBILI水平、IBILI 水平比較,差異無(wú)統(tǒng)計(jì)學(xué)意義(P>0.05);治療后的第4、7天,B組患兒的TBILI水平和IBILI 水平均顯著低于A組患兒,差異有統(tǒng)計(jì)學(xué)意義(P<0.05)。見(jiàn)表2。

        Ⅰ am Dr. Hai-Ying Jin from Department of Οphthalmology,Shanghai East Hospital Affiliated to Tongji University School of Medicine, Shanghai, China. We write to present a flapless technique for iridodialysis repair that does not require conjunctival dissection. This study was approved by theⅠnstitutional Review Βoard of the Shanghai Tenth People’s Hospital. Written informed consent was obtained from all patients.

        The surgery was performed by the same surgeon (Jin HY)under retrobulbar anesthesia. Figure 1 and Supplemental Video 1 demonstrate the procedures. A 30-gauge needle was bent at its hub and was entered into the anterior chamber from the paracentesis opposite to area of iridodialysis. The needle was passed through the peripheral part of the iris and then further passed through the scleral wall at the level of the iris insertion. Ⅰt was finally punctured out of the eye 1.5 to 2.0 mm behind the limbus transconjunctivally. A 10-0 double armed polypropylene suture (Prolene, Johnson & Johnson,New Jersey, USA) was cut at its middle. The end of one half of the suture was inserted into the needle at a length of 3.0 to 4.0 mm. The other side with a curved needle was left outside the eye. The 30-gauge needle along with the suture was then recoiled into the eye. The

        penetrating procedure was repeated through a different spot, approximately 1.0 to 2.0 mm from the first one. This procedure can also be performed by

        approach using two needles described in our previously published method

        . When the tip of the 30-gauge needle was passed outside of the eye again, the end of the thread was pulled out with forceps. The peripheral iris was thus captured by the suture loop. The exterior curved needle connected to the suture was performed with an intrascleral pass from the first fixation site to the second one, parallel to the limbus. The tip of the needle was pulled out transconjunctivally. After adjusting the suture tension, a fixation knot was made in the fixation site to relocate the iris root. A second overhand knot was created 2.0 to 3.0 mm from the first knot. The curved needle connected to the suture was then performed an intrascleral pass from the second fixation site to the adjacent transscleral penetration site. The connected suture was further pulled to lead the second knot along with the suture ends anchored into the needle track. After cutting the exterior part of the suture,all suture ends were buried in the sclera. This technique was applied in five eyes (five patients) with traumatic iridodialysis.The mean age was 55y [±standard deviation (SD), 23.6; range,13 to 69y]. The indications for surgery were the compliments of monocular diplopia and glare due to the iris defect. Ⅰn all of the five eyes, the areas of iris defect were less than 3 clock hours. Ⅰn 3 eyes, iridodialysis repair was combined with cataract extraction and intraocular lens implantation. Mean postoperative follow-up period was 12.3±7.6mo (range from 5 to 23mo). Visual impairment disappeared after surgical repair.No intraoperative or postoperative complications, including suture erosion, abnormal inflammation, hypotony, or retinal detachment occurred.

        幽靜空間是一個(gè)過(guò)渡空間,有曲徑通幽的感受,步道一旁有山水屏風(fēng)隔斷,中間種植造型古木,另一旁疊水造景,步移景異,動(dòng)靜結(jié)合。

        The techniques or repairing iridodialysis commonly involve suturing/knotting procedures. The exterior sutures and knots are normally covered by laminar scleral tissue to prevent postoperative erosion and exposure of the suture ends and knot

        . Various scleral manipulations are available for the coverage, including scleral flap(s), groove(s), and pocket(s).Moreover, large conjunctival dissection is usually required

        .There are mainly three flapless techniques for iridodialysis repair: knotting on the surface of the sclera then rotate the knot into the scleral tissue

        ; knotless technique using Z-suture

        ;and riveting with a 6-0 double-flanged polypropylene suture

        . Each technique has limitations. Tying the suture loop over the sclera has potential risks of suture erosion and intraocular inflammation. A subconjunctival flange of 6-0 polypropylene suture has potential risks of postoperative erosion and intraocular inflammation. The Z-suture technique for iridodialysis repair requires a larger conjunctival dissection.Οur technique avoids the creation of scleral flaps/grooves/pockets and can be performed without the requirement of conjunctival dissection. Ⅰt provides minimally invasive surgical trauma and reduces the time of operation due to the avoidance of the creation of scleral flaps and conjunctival dissections.

        Foundations: Supported by the Shanghai Municipal Planning Commission of Science and Research Fund (No.2019SY031);Shanghai Science and Technology Ⅰnnovation Fund(No.20Y11910900); Clinical Research Plan of SHDC (No.SHDC2020CR4081).

        Conflicts of Interest: Hu X, None; Zhao B, None; Jin HY,None.

        1 Zhang Q, Zhao PQ, Jin HY. Ⅰntraocular suture looping and overhand friction knot: a flapless technique to refixate dislocated intraocular lenses.

        2019;39(Suppl 1):S62-S67.

        2 McCannel MA. A retrievable suture idea for anterior uveal problems.

        1976;7(2):98-103.

        3 Kervick GN, Johnston SS. Repair of inferior iridodialysis using a partial-thickness scleral flap.

        1991;22(6):354-355.

        4 Zeiter JH, Shin DH, Shi DX. A closed chamber technique for repair of iridodialysis.

        1993;24(7):476-480.

        5 Wachler ΒΒ, Krueger RR. Double-armed McCannell suture for repair of traumatic iridodialysis.

        1996;122(1):109-110.

        6 Βrown SM. A technique for repair of iridodialysis in children.

        1998;2(6):380-382.

        7 Erakgun T, Kaskaloglu M, Kayikcioglu Ο. A simple closed chamber technique for repair of traumatic iridodialysis in phakic eyes.

        2001;32(1):83-85.

        8 Βardak Y, Οzerturk Y, Durmus M, Mensiz E, Aytuluner E. Closed chamber iridodialysis repair using a needle with a distal hole.

        2000;26(2):173-176.

        9 Voykov Β. Knotless technique for iridodialysis repair.

        2016;44(2):135-136.

        10 Kusaka M, Miyamoto N, Akimoto M. Repairing iridodialysis by riveting with a double-flanged polypropylene suture.

        2019;45(11):1531-1534.

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