HA义眼台眶内植入术后义眼台取出的原因分析

The Causes of the Extraction of Orbit Implant after Hydroxyapatite Implantation

目的分析羟基磷灰石（HA）义眼台眶内植入术后义眼台取出的原因，探讨预防义眼台取出的有效方法。方法对1995年9月～2009年6月在我院收治的所有HA义眼台植入术后义眼台取出的35例患者进行回顾性调查。针对不同的病因进行相应治疗，治疗无效后行义眼台取出术。结果共调查有完全随访资料的35例患者。最终导致义眼台取出的原因分为义眼台暴露20例，义眼台感染6例，脓性肉芽肿9例。其中，9例脓性肉芽肿患者义眼台均未完全血管化。结论HA义眼台眶内植入术后义眼台取出是严重并发症之一，是多种因素综合影响所致。义眼台血管化不足、义眼台暴露、义眼台感染及脓性肉芽肿是义眼台取出的常见原因。

Objective To analyze the causes of the extraction of orbit implant after hydroxyapatite implanta- tion,so as to explore preventive measures for avoiding the extraction of orbit implant. Methods Thirty-five cases subjec- ted to extraction of orbit implant after hydroxyapatite implantation in our hospital between September 1995 and June 2009 were reviewed retrospectively. Corresponding therapy was applied according to different causes. The implants should be removed finally due to ineffective medical therapy. Results Thirty-five HA implants were extracted, of which 20 cases had implant exposure,6 cases with implants infection,and 9 cases developed pyogenic granuloma with partial vasculariza- tion in HA implant. Conclusion The extraction of orbit implant was serious complication after HA implantation. The fol- lowing common factors lead to orbit implant extraction, partial vascularization in HA implant, implant exposure, implants infection and pyogenic granuloma.