Department of Oral and Maxillofacial Surgery, Fakulti Pergigian, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
Department of Oral and Maxillofacial Surgery, Fakulti Pergigian, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia.
BMJ Case Rep. 2021 Mar 17;14(3):e239542. doi: 10.1136/bcr-2020-239542.
The mylohyoid ridges or lines are pairs of anatomical bony structures located on the internal or lingual surface of mandible. They are the origin for the mylohyoid muscle. These bony structures are distinct in the mandibular molar region, well protected and gradually become undiscernible towards anterior mandible. Bilateral, isolated fracture of the mylohyoid ridges without concomitant mandibular fracture is rare and, to the best of the authors knowledge, was never previously described. This case report describes an isolated bilateral mylohyoid groove fracture, where one side of a necrotic bone fragment at the fracture site progress to became a nidus of infection, which later caused submandibular space abscess requiring emergency surgical intervention. Diagnosis, possible theory to explain the occurrence of isolated mylohyoid groove fracture and management of these condition are explained in this report.
颏舌骨嵴或线是位于下颌骨内或舌面的成对解剖骨性结构。它们是颏舌肌的起点。这些骨性结构在下颌磨牙区很明显，受到很好的保护，并逐渐向颏部变得不可分辨。双侧、孤立的颏舌骨嵴骨折而无伴发的下颌骨骨折是罕见的，据作者所知，以前从未有过描述。本病例报告描述了一例孤立的双侧颏舌骨沟骨折，骨折部位的一个坏死骨片的一侧逐渐成为感染灶，随后导致颌下间隙脓肿，需要紧急手术干预。本报告解释了这种情况的诊断、可能的发生理论以及处理方法。
