Slight Crookedness and Swelling Normal After Septoplasty?

It is not uncommon for the nose to swell significantly after the cast or splint has been removed and for the appearance to change. If only a septoplasty was performed it is unlikely that the change in the external appearance will be permanent. However, if your nasal bones were broken, you should see your surgeon right away to make sure that the bones have not shifted.

After a septoplasty and rhinoplasty, you should expect to have swelling throughout your nose. You should notice some significant changes immediately after the surgery, however your final results will only be apparent after your swelling has resolved which is in 6 to 8 months after surgery. At this time, it's best to be patient and to await your final results.
 

In medicine terms are very precise and meaningful. A SEPTOPLASTY is an operation to straighten the nasal septum. The septum is a midline partition in the nose comprised of bone and cartilage. A SEPTORHINOPLASTY is a procedure to change the shape of the nose and includes a septoplasty, but also involves complex surgery on the structural support of the nose. A RHINOPLASTY is a procedure to change the shape of the nose, not involving any septal surgery.
From your description it is not clear that you did not have some procedure to straighten the nasal bones (since a septoplasty would not achieve this). It is not uncommon for some swelling after a nasal procedure. It is best to see your surgeon and outline you concerns. The surgeon can examine your nose and then determine if this swelling is normal or whether it represents a potential complication such as infection or hematoma.