Ganesh Praveen, Nagarjuna Muralidhara, Boyina Kiran Kumar
Department of Cranio-Maxillofacial Surgery, Mazumdar Shaw Medical Center, Narayana Health, Bangalore, India.
J Craniofac Surg. 2017 Oct;28(7):e625-e627. doi: 10.1097/SCS.0000000000003630.
Introducing a horizontal osteotomy is the first and a critical step in sagittal split ramus osteotomy procedure. Identification of the lingula and medial displacement of the vital structures entering the inferior alveolar foramen are of paramount importance in ensuring a risk-free placement of the medial cut with bur or a saw. Quite often, identification of lingula and retrolingular fossa can be an arduous task owing to the thickness of the internal oblique ridge. Hence, placement of horizontal osteotomy depends on the experience of the operator.Here, the authors describe a simple, low profile instrument that aids in the identification of the lingula as well as provide a posterior stop for horizontal osteotomy during the sagittal split ramus osteotomy procedure.
在矢状劈开下颌支截骨手术中，引入水平截骨是第一步也是关键步骤。识别下颌小舌以及进入下颌孔的重要结构的内侧移位对于确保使用牙钻或锯进行内侧截骨时无风险操作至关重要。由于内斜嵴的厚度，识别下颌小舌和下颌小舌后窝常常是一项艰巨的任务。因此，水平截骨的操作取决于术者的经验。在此，作者描述了一种简单、外形低矮的器械，它有助于识别下颌小舌，并在矢状劈开下颌支截骨手术中为水平截骨提供后方止点。
