Evaluation of superior rectus muscle attachment following hang-back recession in rabbit eyes
| Autor: | M. Rosner, Tamara Wygnanski-Jaffe, Abraham Spierer, Y Wysenbeek |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
medicine.medical_specialty
genetic structures business.industry Perforation (oil well) Suture Techniques Insertion site General Medicine eye diseases Surgery Strabismus 03 medical and health sciences Ophthalmology 0302 clinical medicine Suture (anatomy) Oculomotor Muscles 030221 ophthalmology & optometry Medicine Animals sense organs Rabbits business 030217 neurology & neurosurgery Strabismus surgery Superior rectus muscle |
| Zdroj: | European journal of ophthalmology. 14(6) |
| ISSN: | 1120-6721 |
| Popis: | The hang-back suture technique has been advocated to decrease the risk of scleral perforation during strabismus surgery. In this study, we evaluated the muscle insertion site in rabbits 4 weeks after a hang-back recession was performed.Twenty-five eyes of 13 rabbits underwent hang-back recessions of between 5 and 8 mm of the superior rectus muscle. Four weeks later, the attachment sites were examined.Four weeks following the surgery, 14 muscles (n=25, 56%) were anteriorly displaced. In the 5 mm recession group, one muscle was anteriorly displaced (n=7, 14.3%). In the 6 mm recession group, 50% of the muscles recessed were displaced anteriorly (n=8). The 7 mm hang-back recession group demonstrated forward displacement in five muscles operated (n=6, 83%) and in the 8 mm recession group, all four muscles (100%) were anteriorly displaced. The magnitude of displacement was positively correlated to the amount of the hang-back recession performed (Pearson correlation p0.001).Anterior displacement of muscles using the hang-back technique in the rabbit eye is unacceptably high and occurred in 56% of the cases. A positive, statistically significant correlation exists between the amount of recession performed and the number of muscles displaced from their new insertion. Therefore, when performing large recessions using the hang-back technique displacement should be anticipated. |
| Databáze: | OpenAIRE |
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