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This Concept Map, created with IHMC CmapTools, has information related to: Laryngeal tie back, Tie-back corrects Unilateral paralysis of arytenoids, Unilateral paralysis of arytenoids due to Neurogenic atrophy of muscles (cricoarytenoideus dorsalis, Unilateral paralysis of arytenoids due to Toxicity, Unilateral paralysis of arytenoids due to Trauma, Make a 10-12cm skin incision parallel and ventral to the linguofacial vein (from the surface of the cricoid cartilage to beyond the junction of the thyroid cartilages) Expose the thyropharyngeus and cricopharyngeus. Identify the cleavage plane, and plae a malleable retractor dorsally for surgical exposure, General anesthesia & in dorsal recumbency Clip and aseptically prepare surgical area, Prosthetic Laryngoplasty Prognosis*, Prosthetic Laryngoplasty Indications, Complications Post-op, Standing animal sedated, local anesthetic of surgical site Clip and aseptically prepare surgical area, Tie-back corrects Laryngeal hemiplegia, Tie the sutures Suture the thyropharyngeus and cricopharyngeus muscles using 2-0 absorbable suture material, Place a second suture 10mm lateral to the first Tie the sutures, Prosthetic Laryngoplasty Procedure, Expose the thyropharyngeus and cricopharyngeus. Identify the cleavage plane, and plae a malleable retractor dorsally for surgical exposure Blunty divide the fascial septum between those two muscles to expose the muscular process of the arytenoid cartilage, Blunty divide the fascial septum between those two muscles to expose the muscular process of the arytenoid cartilage Expose the most axial point of the cricoid cartilage by bluntly dissecting the fascia over the caudodorsal portion of the cricoid cartilage, Cranially advance the needle 2-3mm from the caudal edge of the dorsal midline, but ensure the larynx is not penetrated Rotate the needle to penetrate the cricoid cartilage 2-3 cm cranial to its caudal border and 1cm lateral to the dorsal ridge., Unilateral paralysis of arytenoids due to Damage/dysfunction of (left) reccurent laryngeal nerve, Suture the thyropharyngeus and cricopharyngeus muscles using 2-0 absorbable suture material Close the skin using non-absorbable suture material in a continuous pattern, Unilateral paralysis of arytenoids due to Progressive loss of large myelinated fibres