Related Experiment Videos
Nerve transfer versus Teflon injection for vocal cord paralysis: a comparison
R L Crumley1, K Izdebski, B McMicken
1Department of Otolaryngology--Head and Neck Surgery, University of California-Irvine.
The Laryngoscope
|November 1, 1988
Summary
Ansa hypoglossi-recurrent laryngeal nerve anastomosis offers superior voice restoration for unilateral vocal cord paralysis compared to Teflon injection. This surgical technique achieves excellent phonatory quality and may restore normal vocal function with minimal complications.
Area of Science:
- Otolaryngology
- Neurosurgery
- Speech Science
Background:
- Unilateral vocal cord paralysis often results in impaired voice quality.
- Teflon injection is a common treatment but frequently yields a breathy voice.
- Surgical reinnervation techniques offer potential for improved phonatory outcomes.
Observation:
- The ansa hypoglossi-recurrent laryngeal nerve (RLN) anastomosis was performed in five patients.
- Four patients with unilateral vocal cord paralysis were evaluated.
- The procedure involves sectioning the ansa hypoglossi nerve to suture it to the RLN.
- Gelfoam paste was injected for temporary voice rehabilitation during nerve regeneration.
Findings:
- Excellent phonatory quality was achieved in four patients.
- Electroacoustic analysis suggests potential for normal phonatory function restoration.
- Denervation of the sternothyroid muscle appeared to aid medial vocal cord positioning.
- No serious side effects or complications were observed in the five patients.
Implications:
- Ansa hypoglossi-RLN anastomosis provides superior speech results compared to Teflon injection, especially for younger patients or those with professional voice use.
- This nerve transfer technique represents a promising surgical option for functional vocal cord paralysis rehabilitation.
- Further research may validate this technique for achieving normal phonatory function in paralyzed larynges.