Abstract
Purpose. The soft tissue adhesion to the porous polyethylene sheet implant (PPSI) raises concern for post-operative extraocular motility restriction after orbital blow-out fracture repairs using PPSI. A porous polyethylene sheet implant with a barrier surface (PPSI-B) has been developed to reduce the adhesion between the soft tissue and the implant. Methods Six porous polyethylene sheet implants with barrier surface (PPSI-B) and 6 conventional porous polyethylene sheet implants (PPSI) were implanted under the scalp of 3 New Zealand white rabbits. The implants were harvested at 2-, 4-, and 8-week intervals. Clinical and histological comparison was made between PPSI-B's and PPSI's in regard to the adhesion and fibrosis at the soft tissue/implant interface. Results. Clinically, PPSI-B demonstrated less adhesion between the soft tissue and the barrier surface compared to the conventional.PPSI. Both types of implants demonstrated adequate fibrovascular ingrowth by 8-week period. Conclusion. PPSI-B causes less adhesion at the soft tissue/implant interface. A consideration should be given to the use of PPSI-B in repairs of orbital blow-out fractures where extraocular muscle is exposed to the implant surface.
| Original language | English |
|---|---|
| Pages (from-to) | S616 |
| Journal | Investigative Ophthalmology and Visual Science |
| Volume | 37 |
| Issue number | 3 |
| State | Published - 15 Feb 1996 |
| Externally published | Yes |