Background: The most frequent postthyroidectomy complication is recurrent laryngeal nerve (RLN) damage with subsequent vocal cord palsy.
Methods: We have undertaken an intraoperative study aimed to determine the course, distribution, and RLN's anatomical relationships with adjacent structures. Only its identification and its careful exposure allow prevention of iatrogenic injuries.
Results: The RLN was always routinely exposed and identified in 1,543 thyroidectomies. All patients underwent laryngoscopic evaluation before surgery and at the time of discharge. A total of 2,626 RLN were observed. The number of nerves exposed to risk was 673 (25.6%). In the whole series, of 2626 nerves controlled, there were 11 (0.4%) permanent palsies.
Conclusions: Our study confirms that damage to the RLN or to one of its branches may be avoided only by identification and careful exposure of the nerve itself. An experienced surgeon with good knowledge of the anatomy of the RLN and its anatomical variations is required for uncomplicated treatment of thyroid disease.
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