Comparison between motility of biointegratable and silicone orbital implants.
OBJECTIVE
To determine if there is a difference in motility between biointegratable orbital implants and silicone orbital implants in patients undergoing ocular evisceration.


METHODS
A retrospective comparative study.


METHODS
We compared motility measuring the excursion of a mark on the conjunctiva at the center of the implant in eviscerated patients with silicone implants and biointegratable implants after same evisceration technique.


RESULTS
Silicone implants had 0.5-mm increased movement in inferior and medial duction compared with biointegratable implants. The later had 0.1 mm of increased movement compared with silicone implants in lateral gaze. The greatest difference was in superior gaze, in which silicone implants had 1.5 mm more excursion than biointegratable implants. No significant difference was observed in horizontal and vertical movements between both groups.


CONCLUSIONS
In our analysis, there does not seem to be any advantage, in terms of motility, in using biointegratable implants if "pegging" is not planned. Further studies are required.
González-Candial
Miguel
M
Division of Orbital and Ophthalmic Plastic Surgery, Instituto de Microcirugía Ocular, Barcelona, Spain. mig1@excite.com <mig1@excite.com>
Umaña
Maria Andrea
MA
Galvez
Carlos
C
Medel
Ramon
R
Ayala
Eva
E
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001672:Biocompatible Materials; D017234:Eye Evisceration; D005133:Eye Movements / Q000502:physiology*; D005137:Eye, Artificial; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D020273:Orbital Implants; D011095:Polyethylenes; D019919:Prosthesis Implantation; D012189:Retrospective Studies; D012826:Silicone Elastomers
D001672:Biocompatible Materials; C084562:Medpor; D011095:Polyethylenes; D012826:Silicone Elastomers