Transconjunctival Entropion Repair Steven C
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Transconjunctival Entropion Repair Steven C. Dresner, MD, James W. Karesh, MD lower-eyelid entropion has three underlying correctable causes: eyelid laxity, over- riding of the orbicularis oculi muscle, and attenuation of the lower-eyelid retractors. We de- scribe a new technique for correcting this problem. A transconjunctival approach is used to Involutionaladvance or fortify the lower-eyelid retractors. The orbicularis oculi muscle can also be addressed through this approach. Combining this technique with lateral canthal resuspension anatomically cor- rects the entropion by addressing all three correctable causes. Transconjunctival blepharoplasty can also be performed in conjunction with this technique. Twenty-three eyelids of 18 patients successfully underwent this procedure. Six patients underwent simultaneous transconjunctival blepharoplasty. Follow-up ranged between 9 and 18 months. There were no postoperative recurrences, overcorrections, or lower\x=req-\ eyelid retraction. This approach yields a stable and definitive repair of involutional entropion with excellent postoperative cosmesis. (Arch Ophthalmol. 1993;111:1144-1148) Many procedures have been described for SURGICAL TECHNIQUE correcting involutional entropion.1"11 The development of these techniques has been The lower eyelid is anesthetized through based on an understanding of the various the inferior fomix with an injection of ap¬ correctable pathophysiologic processes un¬ proximately 2 mL of 1 % xylocaine hydro¬ derlying this condition: (1) horizontal eye¬ chloride with a 1:100 000 dilution of epi¬ lid laxity, (2) overriding of the preseptal nephrine. A 1- to 2-mL bolus of this same orbicularis oculi muscle, and (3) attenua¬ solution is instilled into the lateral can- tion of the lower-eyelid retractors. Invo¬ thus down to the periosteum. A protective lutional enophthalmos may also play a role eyelid plate is used over the globe during in the cause of involutional entropion; how¬ the dissection. ever, this factor cannot be safely or easily A lateral canthotomy is performed with managed.1 Definitive surgical correction of a straight tenotomy scissors (Figure 1, top involutional entropion needs to address all left). The inferior crus of the lateral can- three of the correctable causes. We have thai tendon is then incised (Figure 1, top developed a new technique to repair this right). A small retractor is placed in the condition that corrects these anatomic ab¬ lateral canthal incision. Beginning at the normalities and provides increased cosme¬ lateral canthus and extending just lateral sis through a transconjunctival approach. to the punctum, an incision is made with a cutting unipolar cautery just below the lower tarsal border through the conjunc¬ tiva and lower-eyelid retractors (Figure 1, From the Division Plastic and Department of Ophthalmology, of Ophthalmic bottom left). Little is en¬ Reconstructive Surgery, The Jules Stein Eye Institute, UCLA School Medicine, bleeding usually of countered in this bloodless Los Angeles, Calif (Dr Dresner); the Krieger Eye Institute, Sinai Hospital of Baltimore relatively plane. (Md) (Dr Karesh); and The Wilmer Ophthalmological Institute, The Johns Hopkins The orbital septum and the orbicularis oc¬ University, Baltimore (Dr Karesh). uli muscle are not violated during the dis- Downloaded from www.archophthalmol.com at SCELC - City of Hope National Medical Center, on April 23, 2012 Figure 1. Top left, A lateral canthotomy is performed with a straight tenotomy scissors. Top right, The inferior crus of the lateral cantbal tendon is incised. Bottom left, An incision is made with a unipolar cutting cautery just below the tarsal border through the conjunctiva and lower-eyelid retractors. Bottom right, A cutting cautery is used to excise a strip of orbicularis muscle along the full length of the incision. section. The conjunctiva and lower- entropion is unilateral, a limited fat the conjunctiva with the cutting cau¬ eyelid retractors are elevated and excision or none at all can be per¬ tery to create a free edge (Figure 2, separated from the anterior eyelid formed to ensure symmetry with the top left). This free edge is then re¬ lamella and orbicularis muscle. The other eyelid. inserted into the inferior and ante¬ surgical plane is carried inferiorly to¬ The lower tarsal border is then rior tarsal border with two buried 5-0 ward the inferior orbital rim be¬ pulled upward, everting the eyelid. Cut¬ polygalactin sutures (Figure 2, top tween the lower-eyelid retractors and ting cautery is used to excise a strip right). Reattaching the retractors to the fat pads. Downward traction on of orbicularis oculi muscle below the the anterior surface of the tarsus ap¬ the lower eyelid with either a rake tarsus along the full length of the in¬ preciably everts the eyelid margin. No or a small Desmarres retractor is used cision (Figure 1, bottom right). Since closure of the conjunctiva is neces¬ for improving exposure. the orbital septum fuses with the lower- sary since the conjunctiva readily re- Once the fat pads are identified, eyelid retractors approximately 5 mm attaches to the inferior tarsal border. a transconjunctival blepharoplasty can below the tarsal border, excision of The eyelid is then horizontally be performed when necessary. Gen¬ the orbicularis oculi in this area can shortened to correct all eyelid laxity tle pressure on the globe or upward be performed without violating the body and a tarsal strip is formed as a sub¬ traction on the lower-retractors is help¬ of the orbital septum. The lower-eyelid stitute lateral canthal tendon. The nee¬ ful for demonstrating the three lower- retractors are firmly adherent to the dle tip of the electrocautery unit is used eyelid fat compartments. The fine con¬ conjunctiva and immediately poste¬ to create this strip by dissecting the nective tissues covering the fat pads rior to the fat compartments. If there tarsus of the lateral eyelid from the an¬ can be incised with the cutting cau¬ is any uncertainty about their location, terior eyelid lamella and removing the tery. Each fat pad is excised with the the patient can be asked to look up¬ eyelid margin and epithelium from it. needle tip of the cutting cautery with¬ ward and downward to identify the Shortening of the strip before its re¬ out clamping. Small vessels in the fat edge of the retractors. attachment to the lateral orbital rim are cauterized when seen. When the The retractors are separated from periosteum prevents the formation of Downloaded from www.archophthalmol.com at SCELC - City of Hope National Medical Center, on April 23, 2012 a lateral subcutaneous lump after clo¬ pion (Figure 4) and in one patient COMMENT sure of the skin (Figure 2, bottom left). with unilateral entropion. Patients with The tarsal strip is reinserted into the cicatricial entropion were excluded from Most authors agree that there are three lateral orbital rim with two 4-0 poly¬ this study. elements responsible for involu¬ galactin sutures. The canthotomy in¬ All patients underwent horizon¬ tional entropion: lower-eyelid lax¬ cision can then be closed in standard tal eyelid shortening and lateral can- ity, attenuation of the lower-eyelid fashion (Figure 2, bottom right). thai resuspension as well as reinser¬ retractors, and overriding of the or¬ tion ofthe lower-eyelid retractors. Post¬ bicularis oculi muscle.12"15 There¬ RESULTS operative follow-up ranged from 9 to fore, a definitive procedure should 18 months. During this period there address all three of these elements. Transconjunctival entropion repair was were no entropion recurrences. No pa¬ The eyelids should be shortened hor¬ performed successfully on 23 eyelids tient had postoperative eyelid retrac¬ izontally; the lower-eyelid retractors of 18 patients with involutional en¬ tion or scierai show, and there were should be fortified or reinserted; and tropion (Figure 3). There were six no overcorrections. One patient had the orbicularis oculi muscle should men (33%) and 12 women (67%) rang¬ a postoperative stitch abscess, which be attended to, either weakening it ing in age from 63 to 94 years. The resolved with antibiotic treatment and or creating a scar barrier under the mean age was 78 years. Five patients removal of the suture. Postoperative tarsus to prevent overriding of the (28%) had bilateral entropion repair ecchymosis was minimal and gener¬ preseptal portion. and 13 (72%) had unilateral repair. ally resolved in 2 weeks. The conjunc¬ In the evolution of entropion re¬ Ofthe 13 unilateral repairs, nine (69%) tival incisions were all fused in the first pair, many techniques have been de¬ involved the right eyelid and four (31%) week after surgery, and persistent con¬ scribed. In general, some failed to ad¬ the left. Transconjunctival blepharo- junctival edema was not a problem. dress any of the causative factors plasties were performed concomitantly No patients had postoperative corneal underlying involutional entropion. in five patients with bilateral entro- stippling or epithelial defects. Most, however, corrected only one Figure 2. Top left, The retractors are separated from the conjunctiva with the cutting cautery to create a free edge. The tip of the cautery points to the lower-eyelid retractors. Top right, The lower-eyelid retractors are reinserted to the inferior anterior tarsal surface with two buried 5-0 polygalactin sutures. Bottom left, A horizontal eyelid shortening and eyelid resuspension through tarsal strip formation is then performed to tighten the eyelids. A small portion of tarsus extends from the horizontally shortened eyelid before its reattachment to periosteum of the inner aspect of the lateral orbital rim. Bottom right, The skin incision is then closed in standard fashion. Downloaded from www.archophthalmol.com at SCELC - City of Hope National Medical Center, on April 23, 2012 Figure 3. Left, Preoperative appearance of a patient with entropion of the right lower eyelid. Right, Postoperative appearance 6 weeks after transconjunctival entropion repair. or two of these factors. Ziegler2 de¬ lid laxity or abnormalities of the lower- effectively and permanently performed. scribed a technique using cautery to eyelid retractors.