Presence of inflammatory cells in the disc and surrounding stroma
| Polybutylene | Polyester | ePTFE | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| UT | T | UT | T | UT | T | ||||||
| 6 weeks | +++ | ++ | +++ | ++ | + | + | |||||
| 12 weeks | +++ | ++ | +++ | ++ | + | + | |||||
-
UT = untreated; T = treated.
-
<10 inflammatory cells (+); 10–20 inflammatory cells (++); >20 inflammatory cells (+++).









