That depends on what your nose looks like and the anatomy of the nose

If you have a small hump and filing the hump does not cause your nose to be too wide after the hump is taken down, then you can avoid other procedures.  Most of the time, however, the hump will create an open area near the area of where the hump was located which will need to be closed.  To close the open area, oftentimes you need to break the nasal bones to fit the new level of the nasal bridge you were desiring.  I would be prepared to undergo something a little more involved than you were thinking. 

Without photos of your nose, it is impossible for any of us to comment specifically on the question you ask. However, IF all you need and want is a conservative dorsal hump removal, that should be possible through a closed approach.

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