A new titanium peg system for hydroxyapatite orbital implants

Purpose: To evaluate a new hydroxyapatite-coated titanium sleeve and titani um peg system fur HA orbital implants. Methods: The authors followed 54 patients receiving an HA-coated titanium s leeve and peg system and analyzed the complications associated with this pe g system. The following data were recorded: type of surgery performed, size of implant used, type of HA used, time of pegging, follow-up duration, pro blems encountered, and treatment. Results: Fifty-seven patients received the HA-coated titanium peg and sleev e system. The average duration of follow-up war; 15 months (range, 3-30 mon ths). Three patients were lost to follow-up after 1 month. Complications as sociated with peg placement in 54 patients included: discharge (9.2%), pyog enic granulomas (14.8%), peg falling out during prosthesis removal (9.2%), poor transfer of movement (1.8%), clicking (3.7%), conjunctiva overgrowing peg (1.8%), part of sleeve shaft visible (9.2%), peg drilled on an angle (1 .8%), HA visible around peg hole (3.7%), and loose sleeve (3.7%). Conclusion: The HA-coated titanium sleeve and titanium peg is a new peg sys tem available for HA orbital implants, Many of the complications associated with this peg system are similar to the commonly used polycarbonate peg sy stem. Pyogenic granulomas and discharge, however, appear to be less frequen tly encountered with this new system. The HA-coated titanium sleeve and tit anium pegs were well tolerated and appeared quieter in the socket than most polycarbonate pegs.