羟基磷灰石义眼台钻孔及栓钉置入术

目的 观察羟基磷灰石义眼台植入后钻孔及栓钉置入术的效果和并发平。方法 ４５例植入羟基磷灰石义眼台的患者，于术后０．５ａ左右行义眼台钻孔及栓钉置入。正确定位后用电钻或手工钻孔，拧入 孔螺钉，将平头钉插入螺钉孔内，结膜水肿消退后换圆头钉，配装活动性义眼。平均随访１３．６ｍｏ。结果 一次手术成功率为８２．２％。并发症有钻孔偏位、偏斜、孔浅钻孔处慢性肉芽肿、感染等，发生率为２２．２％。经治疗后不影响活动性义眼片安装。结论 羟基磷灰石义眼台钻孔及栓钉置入术改善义眼外观。钻孔及栓钉置入术的时机定位和钻孔准确是手术成功的关键。

Hydroxyapatite orbital implant drilling and pegging

Objective To evaluate the efficacy and safty of pegging hydroxyapatite orbital implants.Methods Fourty five patients who received drilling and pegging of hydroxyapatite orbital implants were studied retrospectively, and all patients used the peg and sleeve system followed up 2 to 24 months.Results The rate of success of the first operations is 82.2%. Complications associated with pegging included peg hole drilled on an angle, drilling off center, drilled hole shallow, granuloma and infection, total complications occured in 22.2% in the review, most that are of a minor nature can be cured.Conclusions The hydroxyapatite orbital implants can be directly coupled to the prosthesis through a peg system, allowing a wide range of prosthesis movement and giving a more lifelike quality to the prosthesis. When and how to drill and exactly hole on implant is the key for pegging.