What is the risk of infection from using ear cartilage for Revision Rhinoplasty?

Using your own ear cartilage for a nose job is fairly common and
relatively risk-free. However, if you are experiencing the symptoms of
infection, it is important that you consult your surgeon(s) immediately
to track the root of the problem. In some cases, either the sutures that
bind together your new nose or the cartilage graft may become infected
post-operation. To prevent further infection and to address your current
situation, your surgeon may suggest the removal and re-application of
the sutures. Nevertheless, fearing infection should not stop you from
undergoing a nose job that poses other potential benefits. Those
present, the risk of infection should not be great enough to deter you
from a rhinoplasty procedure.

Cartilage grafts are amazingly resistant to infection in a proper rhinoplasty. While not impossible, it would be DISTINCTLY uncommon and should NOT be a lifetime risk as it regains a normal blood supply fairly quickly.

The risk of infection with cartilage grafting is extremely remote. It is irrelevant whether  the cartilage graft is harvested from the ear or inside the nose. On the rare chance that there is an infection, it would usually present itself in the first week after the procedure.

The risk of infection is same as in any other procedure. I don't see any reason why you should have risk of infection  with conchal cartilage graft in rest of your life. Artificial implants have this kind of risk,conchal cartilage is one of the most reliable graft material in Rhinoplasty.We have used ear cartilage in hundreds of patients over a 25 year ,not seen many infections

The risk of infection using ear cartilage in the nose is extremely low and should not really be a major concern.  Ear cartilage is communally used to refine the tip and is rarely an issue.However, my concern is that ear cartilage usually does not provide enough support for the septum.  If the ear cartilage is needed for spreader grafts or a columellar strut then it may not be up for the job.   Ideally you want to use cartilage from the septum itself and if you don't have enough because of prior surgery then rib cartilage is probably a better option.   You should be discussing all these possibilities with your surgeon if you are having a revision rhinoplasty.

Caritlage is used to restore the underlying structure of the nose or to augment the pre-existing structure.  Many different materials have been used for this- gore-tex, silicone, etc.  Using your body's own cartilage likely has the lowest rate of infection and extrusion.  There are no exact numbers to estimte your risk.

I don't believe you need to be overly concerned about infection with an ear graft.  An infection is rare and would most likely present itself within several days following surgery.  I have been using ear grafts for 20 years and haven't had an infection with it.