Kim Tae-Gon, Chung Kyu-Jin, Kim Yong-Ha, Lim Jong-Hyo, Lee Jun-Ho
From the Department of Plastic and Reconstructive Surgery, College of Medicine, Yeungnam University, Daegu, South Korea.
Ann Plast Surg. 2014 Feb;72(2):164-8. doi: 10.1097/SAP.0b013e31825c081d.
Telecanthus occurs because of the disruption of the medial canthal tendon (MCT). The deformity of medial canthus can result from nasoorbitoethmoid fractures, tumor resection, craniofacial exposure, congenital malposition, or aging. Repair of the MCT using transnasal wiring is regarded as a method of choice to treat telecanthus. We have introduced an oblique transnasal wiring using Y-V epicanthoplasty incision rather than the well-known classical bicoronal approach.
Eight patients with telecanthus were treated with this method. Through the medial canthal horizontal and periciliary incision, we could have an access to the medial orbital wall and the MCT. An oblique transnasal wiring was performed with the following steps: (1) after slit skin incision on the nasal recession of the contralateral frontoglabella area, 2 drill holes were made from this point to the superior and posterior region of the lacrimal fossa of the affected orbit; (2) a 2-0 wire was passed through the MCT and the holes; (3) the wire was pulled and tightened until the MCT was ensured and was twisted in the contralateral side. After the repositioning of the MCT, the skin was simply sutured. The excess skin was trimmed, and then the skin was sutured with nylon 7-0. The remaining "dog ear" in the lateral portion can be removed by additional periciliary skin incision and excision.
All the patients achieved an improvement and a prompt recovery. The interepicanthal distance was decreased by 6.3 mm on average compared with that in the preoperative condition. All patients had no complication associated with surgeries. Of posttraumatic telecanthus, 5 patients were much satisfied with the outcomes, and 1 patient had recurrence on postoperative month 3. In cases of congenital anomaly or neoplasm, the telecanthus was also improved.
An oblique transnasal wiring using Y-V epicanthoplasty incision could be a simple, safe method to correct the telecanthus with the following advantages: first, we could fix the MCT to the appropriate position with oblique transnasal wiring; second, a horizontal incision and a periciliary incision could be acquired with enough operative fields; third, Y-V epicanthoplasty incision is an effective method for minimizing unsightly scar formation.
睑裂增宽症是由于内眦韧带(MCT)断裂所致。内眦畸形可由鼻眶筛骨折、肿瘤切除、颅面暴露、先天性位置异常或衰老引起。经鼻钢丝固定术修复MCT被视为治疗睑裂增宽症的一种首选方法。我们采用Y-V内眦成形术切口而非著名的经典双冠状切口引入了一种斜行经鼻钢丝固定术。
8例睑裂增宽症患者接受了该方法治疗。通过内眦水平和睫毛下切口,可进入眶内侧壁和MCT。斜行经鼻钢丝固定术按以下步骤进行:(1)在对侧额眉间区域鼻侧凹陷处切开皮肤后,从此点向患侧眼眶泪囊窝的上方和后方钻2个孔;(2)用一根2-0钢丝穿过MCT和孔;(3)牵拉并收紧钢丝,直到确保MCT固定好,并在对侧扭转。MCT复位后,简单缝合皮肤。修剪多余皮肤,然后用7-0尼龙线缝合皮肤。外侧部分剩余的“狗耳”可通过额外的睫毛下皮肤切口和切除去除。
所有患者均有改善且恢复迅速。与术前相比,内眦间距平均减小了6.3毫米。所有患者均无手术相关并发症。在创伤后睑裂增宽症患者中,5例对结果非常满意,1例在术后第3个月复发。在先天性异常或肿瘤病例中,睑裂增宽症也得到了改善。
采用Y-V内眦成形术切口的斜行经鼻钢丝固定术可能是一种简单、安全的矫正睑裂增宽症的方法,具有以下优点:第一,通过斜行经鼻钢丝固定术可将MCT固定到合适位置;第二,水平切口和睫毛下切口可获得足够的手术视野;第三,Y-V内眦成形术切口是减少难看瘢痕形成的有效方法。