Injection of BIOPEX^® into the Vocal Fold Using a Trial Injector

Abstract

Thyroplasty, arytenoid adduction, and vocal fold injection are surgical treatment options for unilateral vocal fold paralysis. Injection laryngoplasty is performed without making an incision in the neck and gives less stress to the patient compared to other procedures. Thus injection laryngoplasty is appropriate treatment option for patients who have cosmetic requirements or whose general condition prefer the procedure which induce lowest stress on the patient. Recently, calcium phosphate bone paste (BIOPEX^®;) has been reported to be a good candidate as injection material which induces little tissue reaction and stabilizes for years after injection. We tentatively prepared an injector using commercial clamps to establish easy and consistent injection technique of BIOPEX^®. We used this injector in 5 cases and injection procedure could be smoothly performed with less stress on the operator than manual injection. Satisfactory results were obtained in all the cases with significantly improved maximum phonation time.