| Scanning Electron Microscopic Findings of Removed Supramid Extra II(R) from Recurred Congenital Ptosis Patients. |
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Jee Ho Chang, Sang Yeul Lee, Jae Woo Jang |
1Department of Ophthalmology, Yonsei University College of Medicine, Seoul, Korea. sylee1009@yumc.yonsei.ac.kr
2The Institute of Vision Research, Yonsei University College of Medicine, Seoul, Korea.
3Department of Ophthalmology, Ajou University School of Medicine, Suwon, Korea. |
| 주사전자현미경 소견을 통한 Supramid Extra 2(R)를 사용 선천성 안검하수 수술의 재발원인 분석 |
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장지호 ( Jee Ho Chang ) , 이상렬 ( Sang Yeul Lee ) , 장재우 ( Jae Woo Jang ) |
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| Abstract |
PURPOSE
To identify the cause of frequent recurrence of ptosis after frontalis suspension with Supramid Extra II(R), we investigated the change occurring in the Supramid following implantation. METHODS: We examined the removed Supramid Extra II(R) from recurred congenital ptosis by scanning electron microscopy. RESULTS: Some cracks were noted on its sheath as well as hydrolytic remnant of internal polyfilament. In most cases, the longer the implantation time was, the more the sign of disintegration was observed. CONCLUSIONS: This study showed that hydrolysis and subsequent weakening of Supramid material might have caused the frequent recurrence of ptosis. |
| Key Words:
Supramid Extra II(R);Recurrence;Hydrolysis of nylon |
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