Actress Jennifer Aniston Underwent Septoplasty Twice
Though not entirely recent news, actress Jennifer Aniston reportedly underwent septoplasty nasal surgery not just once, but twice. The first was done in 1994 and a revision septoplasty was performed in January 2007.
This type of surgery is performed to help improve nasal breathing, an issue that Jennifer Aniston apparently had.
Septoplasty, unlike rhinoplasty or nosejob, does NOT change the outside appearance of the nose. All the work is done internally.
The explanation for why the nasal appearance does not change after septoplasty is actually quite simple. The analogy would be a house where the appearance on the outside would not change even though you may knock down a wall between two rooms inside the home.
SO... Here is a side view of the septum. The blue arrow is pointing to the nostril opening and the red arrow is pointing to the lip.
In this picture below, the septum has been removed.
As you can see, the outside appearance of the nose remains unchanged as the rim of the nose is kept intact as shown by the red arrows here:
So that in a nutshell is the explanation for why deviated septum surgery does not change the outside nasal appearance.