摘要
为矫治眼球摘除或眼内容剜出术后上睑凹陷畸形,采用羟基磷灰石义眼台置入法,分两期手术完成。所用材料为美国进口及国产义眼台。第1期手术,沿球结膜原瘢痕处切开结膜及筋膜层,寻出4条直肌,暴露肌锥腔,置入适当大小的羟基磷灰石(下简称 HA)义眼台于剥出的肌锥腔内,用双层异体及自体巩膜覆盖义眼台前面,分层缝合筋膜、结膜。第Ⅱ期,于术后6～8个月后视情况行钻孔术。在所矫治的280例中,有190例随访已超过6个月,配戴义眼后外观满意,活动性较好,安全有效。
This work was to study the clinical effect and safety of hydroxyapatite(HA)implant for correction of anophthalmos after enucleation or evisceration.Two hundred and eighty patients have re- ceived the HA implant in our hospital,of whom 190 cases were followed-up for more than 6 months. During the operation,incision was made on the conjunctiva and fascia to expose the rectus muscles.A HA sphere of appropriate size was then inserted into the muscle cone.Two layers of homologous and au- tologous sclera were placed over half Of the anterior surface of the HA sphere before incision was su- tured. After six to eight months,drilling operation was performed.Clinical observations showed that the HA implant made the prosthesis fit more comfortably and with better movement.No extrusion or migra- tion of the implant or intraocular infection was found.It is concluded that HA is completely histocompat- ible,non-antigenic,nontoxic and has no absorption.The porous HA is quickly vascularized after implan- tation.HA is the safest and most effective material of orbital implant for correction of anophthalmos af- ter enucleation or evisceration.
