Comparison of orbital prosthesis motility following enucleation or evisceration with sclerotomy with or without a motility coupling post in dogs.
OBJECTIVE
To evaluate motility of silicone orbital implants and corneoscleral prostheses, with and without use of a motility coupling post (MCP) in dogs.


METHODS
Eighteen mixed-breed dogs.


METHODS
The motility of an orbital silicone implant and corneoscleral prosthesis after enucleation (n = 6), evisceration (n = 6), or use of a MCP with evisceration (n = 6) in dogs were compared. One eye from each dog had surgery whereas the opposite eye was used as a control. Clinical evaluations were performed three times a week. Histopathology of the orbital tissues was performed 8 and 12 weeks after surgery.


RESULTS
Implant motility in dogs with evisceration (vertical movement [VM] 8.04 +/- 2.13; horizontal movement [HM] 11 +/- 3.05) and evisceration with MCP (VM 9.61 +/- 1.59); HM was significantly greater than the enucleation group (VM 0.51 +/- 0.5; HM 1.22 +/- 0.68) (P < 0.01). Prosthetic motility in dogs with evisceration with MCP was significantly greater than in dogs with evisceration; dogs with evisceration had significantly greater motility than dogs with enucleation (P < 0.01). No postoperative complications were observed in any of the groups. No significant abnormalities were noted on histopathology.


CONCLUSIONS
MCP placement in silicone orbital implants significantly enhanced the prosthetic motility in dogs. This study supports the use of MCP in silicone orbital implants to enhance corneoscleral prosthesis motility and cosmetics in dogs.
Yi
Na Young
NY
Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27607, USA.
Park
Shin Ae
SA
Jeong
Man Bok
MB
Kim
Won Tae
WT
Kim
Se Eun
SE
Kim
Ji Youn
JY
Chae
Je Min
JM
Jang
Kyoung Jin
KJ
Seong
Je Kyung
JK
Seo
Kang Moon
KM
D000818:Animals; D004285:Dogs; D015353:Eye Enucleation / Q000009:adverse effects / Q000662:veterinary*; D017234:Eye Evisceration / Q000009:adverse effects / Q000662:veterinary*; D005137:Eye, Artificial / Q000662:veterinary*; D005260:Female; D008297:Male