The use of porous polyethylene (Medpor) lower eyelid spacers in lid heightening and stabilisation.
OBJECTIVE
The management of lower eyelid retraction can be challenging, and established techniques to correct it are not always successful. Previous reports have suggested a role for the ultrathin high density porous polyethylene lower eyelid spacer (Medpor LES) in such patients. The authors report the experience of three surgeons implanting Medpor LES over 1 year, and ascertain whether such implants are a safe and effective alternative to autogenous spacers.


METHODS
A prospective, interventional, non-comparative case series of consecutive patients. Surgical indications for Medpor LES were noted. Preoperative and postoperative lower marginal reflex distance (L-MRD), vertical palpebral aperture (PA), lagophthalmos, and scleral show inferior to the limbus (LSS) were recorded, together with major and minor complications.


RESULTS
32 patients (35 eyelids) had a Medpor LES inserted, 22/32 under local anaesthetic, and nine with adjunctive procedures. Mean follow up was 22 months (range 15-28 months). The Medpor LES was effective in reducing the palpebral aperture (p<0.001) and lagophthalmos (p = 0.04) and raising the lower eyelid height by reducing both L-MRD (p = 0.006) and LSS (p<0.001). However there were major complications in 7/32 patients and minor complications in 8/32, most requiring further surgery. Final outcome was good in 24/35 eyelids and satisfactory in 5/35.


CONCLUSIONS
Despite a good or satisfactory final outcome in the majority of patients, the value of this technique is limited by complications, and should be reserved for those unsuitable for safer techniques.
Tan
J
J
Eye Department, Royal Victoria Infirmary, Queen Victoria Road, Newcastle upon Tyne NE1 4LP, UK.
Olver
J
J
Wright
M
M
Maini
R
R
Neoh
C
C
Dickinson
A J
AJ
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001672:Biocompatible Materials / Q000627:therapeutic use*; D019882:Blepharoplasty / Q000009:adverse effects / Q000379:methods*; D005141:Eyelid Diseases / Q000601:surgery*; D005143:Eyelids / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011095:Polyethylenes / Q000627:therapeutic use*; D011446:Prospective Studies; D019919:Prosthesis Implantation / Q000379:methods*; D016896:Treatment Outcome
D001672:Biocompatible Materials; C084562:Medpor; D011095:Polyethylenes