Clinical Study of the Complications after Drilling in Anophthamic Patients with Hydroxyapatite Implantations.

Lee, Ho Sung; Kim, Sung Joo; Lee, Sang Yeul

Original Article

Journal of the Korean Ophthalmological Society 1997;38(7):1089-1096.
Published online July 1, 1997.

Clinical Study of the Complications after Drilling in Anophthamic Patients with Hydroxyapatite Implantations.

Ho Sung Lee, Sung Joo Kim, Sang Yeul Lee

¹Department of Ophthalmology, Seoul Adventist Hospital, Seoul, Korea.
²Department of Ophthalmology, College of Medicine Yonsei University.

Hydroxyapatite 를 삽입한 무안구증 환자에서 drilling후 발생한 합병증에 관한 임상적 연구

이호성(Ho Sung Lee),김성주(Seong Ju Kim),이상렬(Sang Yeul Lee)

Abstract

The hydroxyapatites were popularly been used as the ocular implant due to low incidence of post-operative exposure, infections, and excellent motility. For this purpose, it has been known that the drilling and peg implantations are performed after ingrowth of fibrovascularization tissue into the hydroxyapatites, so that ball and socket movement were occur. The authors reviewed 140 patients(140 eyes) who received enucleation or evisceration with the implantation of hydroxypapatite from Dec. 1991 to Jun. 1995. We performed that drilling after confirmation of the fiborvascularized hydroxyapatite by Technetium-99m-MDP bone scan, and investigated the method and complications. Among the 140 eyes(140 Patients), 39 eyes(28%) were found to have complications: 17 cases of peg extraction(44%), 10 cases of peg protrusion(26%), 4 cases of over-growth of granulation tissue(11%), 3 cases of poor motility(7%), 3 cases of hydroxyapatite exposure(7%) and 2 cases of malposition of peg(5%). Redrilling was performed in 20 eyes(51%) and exchanged by the screw peg due to re-extraction of peg in 4 eyes(20%). In a conclusion, overall the frequency of complications after drilling was about 28% and the most frequent complication was peg extraction.

Key Words: Hydroxyapatite;Drilling;Complication;Peg