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Comparison of orbital prosthesis motility following enucleation or evisceration with sclerotomy with or without a motility coupling post in dogs |
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| Authors: | Na Young Yi Shin Ae Park† Man Bok Jeong‡ Won Tae Kim† Se Eun Kim† Ji Youn Kim§ Je Min Chae¶ Kyoung Jin Jang Je Kyung Seong†† Kang Moon Seo† |
| Institution: | Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27607, USA;;Department of Veterinary Surgery and Ophthalmology, College of Veterinary Medicine, Seoul National University, San 56-1, Shillim 9 dong, Gwanak-gu, Seoul 151-742, Korea;;Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri-Columbia, Columbia, MO 65211, USA;;Hanna Animal Hospital, Bang bae dong 759-2, Seo cho gu, Seoul, Korea;;Department of Ophthalmology, School of Medicine, Johns Hopkins University, Baltimore, MD 21287, USA;;Han-Dok Artificial Eye Institute, 905, Hwha-Young B/D, Jongno sam-ga, Jongno-gu, Seoul, Korea;; Laboratory of Developmental Biology and Genomics, College of Veterinary Medicine, Seoul National University, San 56-1, Shillim 9-dong, Gwanak-gu, Seoul, 151-742, Korea |
| Abstract: | Objective To evaluate motility of silicone orbital implants and corneoscleral prostheses, with and without use of a motility coupling post (MCP) in dogs. Animals studied Eighteen mixed-breed dogs. Procedures 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. |
| Keywords: | dog evisceration motility coupling post orbital implant prosthesis sclerotomy |