Accidental Insertion of a Broken Needle into the Pterygoid Mandibular Space during Inferior Alveolar Nerve Block: A Case Report. (17th August 2022)

• Record Type: Journal Article
• Authors: Terada, Kazuhiro; Yamagata, Kenji; Uchida, Fumihiko; Fukuzawa, Satoshi; Ishibashi-Kanno, Naomi; Bukawa, Hiroki
• Other Names: Macan Darko Academic Editor.
• Is Part Of: Case reports in dentistry. Volume 2022(2022)
• Publication Date: 2022-08-17
• Subjects: Dentistry -- Case studies -- Periodicals; Oral medicine -- Case studies -- Periodicals; Oral Medicine; Dentistry; Dentistry; Oral medicine; Electronic journals; Periodical; Case studies; Periodicals; Case Reports; Fulltext; Internet Resources; Periodicals; 617.6
• DOI: 10.1155/2022/9626612
• Languages: English
• ISSNs: 2090-6447

Abstract

Abstract : The incidence of needle breakage is estimated to be 0.000007%, and most needle breaks occur during inferior alveolar nerve block (IANB) administration and are localized to the pterygomandibular space. Although immediate surgical intervention is recommended for the removal of the fracture needles, intraoperative localization of a broken injection needle fragment can be challenging. Here, we present the case of a 36-year-old woman who underwent dental extraction of the left lower wisdom tooth under local anesthesia at a private office. At that time, a disposable 33G needle was broken and accidentally inserted into the pterygomandibular space during IANB. A broken injection needle was presented at the base of the left coronoid process of the mandible on computed tomography (CT). We successfully removed the broken injection needle using fluoroscopy and assisted endoscopy under general anesthesia.