Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India.
Eur J Ophthalmol. 2021 May;31(3):1417-1421. doi: 10.1177/1120672120974285. Epub 2020 Nov 23.
We describe a simple technique for achieving radial and equally spaced sutures by novice corneal surgeon in cases of large penetrating keratoplasties.
A simple mathematical equation was derived for precise calculation of spacing between interrupted sutures in large grafts ( = 50). The ubiquitous and easily available Castroviejo calipers were used to mark the donor cornea according to the derived formula. Interrupted sutures were passed over the pre-marked points and tied. Radiality was assessed in the post-operative period.
A total of 50 eyes undergoing therapeutic keratoplasty with graft size between 9 and 12 mm were enrolled. Equally spaced and radially aligned sutures were achieved in all cases postoperatively with watertight apposition of the graft host junction using our simple technique.
The Castroviejo caliper can be effectively used for equidistant spacing of interrupted sutures in large therapeutic grafts by a novice surgeon thereby simplifying the procedure and reducing the surgical time.
我们描述了一种简单的技术,可帮助初出茅庐的角膜外科医生在进行大穿透性角膜移植时实现放射状和等距缝线。
针对较大移植物(=50),我们推导出了一个简单的数学方程,用于精确计算间断缝线之间的间距。根据推导的公式,使用无处不在且易于获得的 Castroviejo 卡钳对供体角膜进行标记。在预先标记的点上穿过间断缝线并系紧。术后评估放射状。
共有 50 只接受大小在 9 至 12mm 之间的治疗性角膜移植的眼睛被纳入研究。使用我们的简单技术,所有病例均在术后实现了等距和放射状排列的缝线,并且移植物与宿主交界处的吻合紧密,防水。
Castroviejo 卡钳可有效地用于初出茅庐的外科医生对大治疗性移植物进行等距间断缝线,从而简化手术过程并减少手术时间。