Hydroxyapatite implant secondary implantation for severe retraction of eye socket

Abstract

Objective To investigate the efficacy of secondary implantation of hydroxyapatite orbital implant for severe retraction of eye socket.Methods Twenty-six of twenty-six cases,half an year to thirty-eight years after enucleation or evisceration,were treated with secondary hydroxyapatite orbital implantation.Results After operation of secondary implantation of hydroxyapatite orbital implant,orbital motion works well.The eyes feature of the two sides was similar,it was difficult to distinguish true and false.There was no occurrence of rejection,any orbital translocation,prolapse or intraorbita[infection in postoperative follow-up of three years to five years.Conclusion Suitable size selection of hydroxyapatite implants according to the orbital volume size and conjunctival sac cavity size in secondary operation,and the need for homologous sclera fixation in four rectus attachment,which made the sclera covered on the orbital surface,can increase the orbital motion,and can prevent the possibility of orbital discharge. Key words: Implantation, hydroxyapatite ; Implantation, secondary ; Retraction, eye socket