@ou812
though PMMA appears to have a fairly good record out 10+ years there really isn't data on 15, 20 or more years, I am still young enough to have the implant for 30+ years and without knowing how PMMA will react in the body that long I was not comfortable taking that risk. I figured I would go the Ellanse route and see how that played out and in the next 5-10 years if the data on PMMA long-term 20+ years looks good I could switch. Ellanse offered a longer lasting more affordable alternative to HA, without the permanant commitment of PMMA. Hope that helps.