Traumatic benign paroxysmal positional vertigo: personal experience and comparison with idiopathic BPPV.

T-BPPV resulted different from I-BPPV in the resolution rate, bilateral or multiple canal involvement and persistence rate. T-BPPV and I-BPPV does not differ for recurrence rate, suggesting that, after resolution, the natural course of post-traumatic and idiopathic BPPV is similar.