Polytetrafluoroethylene as a Spacer Graft for the Correction of Lower Eyelid Retraction.
10.3341/kjo.2005.19.4.247
- Author:
Yong Jae LEE
1
;
Sang In KHWARG
Author Information
1. Department of Ophthalmology, College of Medicine, University of Ulsan, Asan Medical Center, Seoul, Korea.
- Publication Type:Original Article ; Comparative Study
- Keywords:
Expanded polytetrafluoroethylene (e-PTFE);
Lower lid retraction;
Lower lid retraction repair
- MeSH:
Treatment Outcome;
Rabbits;
*Prosthesis Implantation;
Prosthesis Design;
Prostheses and Implants;
*Polytetrafluoroethylene;
Eyelids/pathology/surgery;
Disease Models, Animal;
Blepharoptosis/pathology/*surgery;
Blepharoplasty/*methods;
Biological Dressings;
Animals
- From:Korean Journal of Ophthalmology
2005;19(4):247-251
- CountryRepublic of Korea
- Language:English
-
Abstract:
PURPOSE: To evaluate the efficacy of porous expanded polytetrafluoroethylene (e-PTFE, Goretex (R) ) containing large pores made with a 21-gauge needle as a graft for the correction of lower lid retraction. METHODS: e-PTFE grafts were implanted between the tarsus and lower lid retractor via a transconjunctival approach with/without amniotic membrane transplantation, or via a transcutaneous approach. Rabbits were examined and assessed for corneal and conjunctival complications and for e-PTFE graft status. Rabbits were sacrificed for a histological study at 8 weeks postoperatively. RESULTS: e-PTFE grafts were uniformly extruded 3 weeks postoperatively in eyelids operated on via the transconjunctival approach. However, rabbits operated on via the transcutaneous approach demonstrated e-PTFE graft retention; in addition, dense fibrovascular ingrowths into the large pores of e-PTFE were observed histologically. CONCLUSIONS: e-PTFE is a good substitute for other graft materials as a spacer in lower lid retraction operations, especially as an interpositional graft using a transcutaneous approach.
