Yes, it is possible to repair a displaced nasal bone even after a few years. This condition can be corrected through a surgical procedure known as rhinoplasty or a nose job. During the surgery, the nasal bones are repositioned and reshaped to correct any asymmetry or deformity. The procedure can be performed under general anesthesia or local anesthesia with sedation, depending on the extent of the correction needed. Recovery time after the surgery can range from a few days to a few weeks, and the results are usually long-lasting.