Septal Cartilage is the best.

I have many patients over the past 30 years that I have used cartilage in their nose. It lasts forever and does not have warping issues if properly done. I never use foreign material. If their isn't enough cartilage in the septum I go to the ear, etc. 

I do not use man made material for nasal augmentation. I prefer the patient's own cartilage which will become incorporated into their surrounding tissue. Unfortunately, you are an example of the problems that can occur with alloplastic material.