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BACKGROUND Myofibromas are benign mesenchymal tumors, classically presenting in infants and young children in the head and neck region. Perineural involvement, especially in peripheral nerves within the upper extremity, is extremely rare in myofibromas. OBSERVATIONS The authors present the case of a 16-year-old male with a 4-month history of an enlarging forearm mass and rapidly progressive dense motor weakness in wrist, finger, and thumb extension. Preoperative imaging and fine needle biopsy confirmed the diagnosis of a benign isolated myofibroma. Given the dense paralysis, operative management was indicated, and intraoperative exploration showed extensive involvement of tumor within the radial nerve. The infiltrated nerve segment was excised along with the tumor, and the resulting 5-cm nerve gap was reconstructed using autologous cabled grafts. LESSONS Perineural pseudoinvasion can be an extremely rare and atypical feature of nonmalignancies, resulting in dense motor weakness. Extensive nerve involvement may still necessitate nerve resection and reconstruction, despite the benign etiology of the lesion.

To compare in vitro failure loads of nerve coaptations using fibrin glue alone, a suture alone, and a combination of fibrin glue and a suture.The median, radial, and ulnar nerves of 15 fresh-frozen cadaveric upper extremity specimens (45 nerves in total) were dissected in vitro and transected 5 cm proximal to the wrist crease to simulate an injury requiring coaptation. Three coaptation techniques were used: fibrin glue alone, a suture alone, and a suture augmented with fibrin glue. The load to failure of each repair was measured using a linear servo-actuator with an in-line force sensor. The results were analyzed using 2-way repeated measures analysis of variance tests and pairwise comparisons with Bonferroni correction.Both the nerve coaptation technique and the specific nerve that was repaired had a significant effect on failure load. Suture-glue repair had the highest load to failure, 11.2 ± 2.9 N, and significantly increased the load to failure by 2.9 ± 1.7 N compared with glue repair alone. There was no significant difference between suture-glue repair and suture repair alone or between glue repair alone and suture repair alone.In this in vitro cadaveric model, nerve injury coaptation using both a suture and fibrin glue resulted in the strongest repair. The addition of fibrin glue may provide some benefit when used to augment suture repair, but when used in isolation, it is inferior to combined suture-and-glue constructs.Combined suture-and-glue nerve coaptations might be useful in the early postoperative period in increasing nerve repair strength and potentially reducing rupture rates.

Nontechnical skills (NTS) are essential to emergency crisis management. Due to the rarity of true emergencies, they are challenging to teach and assess within a competency-based curriculum. Our purpose is to evaluate the utility of the Non-Technical Skills in Surgery (NOTSS) scale in NTS assessment in simulated otolaryngology and head and neck surgery (OTO-HNS) emergencies and identify common challenges that residents encounter.Mixed methods analysis of 15 junior OTO-HNS resident teams in four simulated emergency scenarios. Six raters rated resident NTS performance using the NOTSS score. Constructivist-grounded theory was used to analyze scenario video transcripts to identify areas of learner difficulty to guide future simulation development.Residents scored highest in situational awareness and lowest in leadership domains. Raters showed good consistency and reliability overall (Cronbach's alpha = 0.885). There was no statistical difference in ratings between surgical experts and nonexperts. Qualitative analysis demonstrated challenges with closed-loop communication and handling transitions of leadership with the scenarios.Simulation-based training is an effective modality to teach NTS in crisis resource management. The NOTSS rating scale is a reliable instrument for assessing NTS in simulated OTO-HNS emergencies. Incorporating the NOTSS scale for NTS assessment within a competency-based curriculum is recommended.NA. Laryngoscope, 128:2301-2306, 2018.