Polytetrafluoroethylene as a Spacer Graft for the Correction of Lower Eyelid Retraction
Korean Journal of Ophthalmology
;
: 247-251, 2005.
Article
in English
| WPRIM
| ID: wpr-146524
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.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Polytetrafluoroethylene
/
Prostheses and Implants
/
Prosthesis Design
/
Biological Dressings
/
Blepharoptosis
/
Treatment Outcome
/
Blepharoplasty
/
Prosthesis Implantation
/
Disease Models, Animal
/
Eyelids
Limits:
Animals
Language:
English
Journal:
Korean Journal of Ophthalmology
Year:
2005
Type:
Article
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