A modified laryngoplasty approach promoting XXXX of the cricoarytenoid joint.

@entity8482 @entity1641 @entity3947
OBJECTIVE: To perform a modification to the standard laryngoplasty procedure in vivo that would result in @entity3947 of the cricoarytenoid (CA) joint, and determine the stability provided to the abducted arytenoid in vitro. STUDY DESIGN: Experimental study. ANIMALS: @entity1641 (n=8). METHODS: @entity1641 were assigned to either control laryngoplasty (n=3) or modified laryngoplasty (5) procedure. Endoscopic upper airway evaluations were used to measure right:left quotients 1 day and 3 months postoperatively to assess maintenance of abduction. @entity1641 were euthanatized 3 months after surgery and larynges collected for measurement of translaryngeal impedance and histologic evaluation of @entity8482 . Each specimen was exposed to increasing negative pressure with the sutures intact or cut while translaryngeal impedance was recorded. Data were analyzed using ANOVA with significance set at P<.05. RESULTS: Loss of left arytenoid cartilage abduction at 3 months was greater in the control laryngoplasty group. Overall, impedance was significantly lower for the modified laryngoplasty group compared with the control laryngoplasty group and lower with the sutures intact than cut. Histologic evaluation of the joints confirmed fibrous bridging of the left CA joints of the modified laryngoplasty group. CONCLUSIONS: A modified laryngoplasty approach promotes @entity3947 joint and decreases the loss of abduction of the arytenoid.
