abstracthyaluronic acid in the management of post-thyroidectomy vocal cord paralysis introduction: Thyroid surgery rates have tripled over the past 3 decades. Currently, the main postoperative complications of this surgery are vocal fold paralysis because of recurrent laryngeal nerve dysfunction and hypocalcemia. case report: We report the case of a 58 years old woman who presented with persistent dysphonia post total thyroidectomy. Laryngeal videostroboscopy evidenced unilateral vocal fold paralysis. We performed a percutaneous injection laryngoplasty with hyaluronic acid achieving significant improvement in voice. conclusions: Percutaneous injection laryngoplasty with hyaluronic acid is a safe and effective procedure in the management of post-thyroidectomy vocal cord paralysis.