Wang Liang, Gun Ramazan, Youssef Ahmed, Carrau Ricardo L, Prevedello Daniel M, Otto Bradley A, Ditzel Leo
Department of Otolaryngology-Head and Neck Surgery, Wexner Medical Center, The Ohio State University, Columbus, Ohio, U.S.A; Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan, 450052, China.
Laryngoscope. 2014 Nov;124(11):2451-5. doi: 10.1002/lary.24676. Epub 2014 Aug 11.
OBJECTIVES/HYPOTHESIS: Endonasal approaches to the pterygopalatine fossa for epistaxis or as part of a transpterygoid approach have been popularized somewhat by the ability to control the terminal branches of the maxillary artery (MA). Surgical landmarks are useful to identify these arteries. Therefore, identification of surface features on the posterior wall of the antrum that reflect the position of deeper structures within the pterygopalatine fossa would help predict anatomical position and orientation.
Describe the incidence of identifiable markings on the posterior wall of the maxillary sinus and ascertain their nature.
An anatomical study of 18 cadaveric specimens noting and recording the presence, location, and number of prominences on the posterior wall of the antrum. After removing the bony wall, structure in the pterygopalatine fossa corresponding to the surface markings was noted.
Two prominences were identified. Prominence (P)1 extended from the upper part of the posterior wall of the maxillary sinus to the inferior orbit and corresponded to the infraorbital nerve. P2 was located at the middle part of the posterior wall, below P1, and corresponded to the MA. P2 was located medial to a vertical "drop line" where P1 connected to the posterior wall. P1 and P2 were found in 41.7% and 22.2%, respectively, of the specimens.
This study defines features on the maxillary sinus posterior wall from an endoscopic perspective. These landmarks may be useful to identify the MA and its branches during surgery within the pterygopalatine fossa.
N/A.
目的/假设：经鼻入路至翼腭窝治疗鼻出血或作为经翼突入路的一部分，因能够控制上颌动脉（MA）的终末分支而在一定程度上得到推广。手术标志有助于识别这些动脉。因此，识别上颌窦后壁上反映翼腭窝内更深层结构位置的表面特征，将有助于预测解剖位置和方向。
描述上颌窦后壁上可识别标记的发生率并确定其性质。
对18具尸体标本进行解剖学研究，记录上颌窦后壁上隆起的存在、位置和数量。去除骨壁后，记录翼腭窝内与表面标记相对应的结构。
识别出两个隆起。隆起（P）1从上颌窦后壁上部延伸至眶下，对应眶下神经。P2位于后壁中部，在P1下方，对应上颌动脉。P2位于P1与后壁相连的垂直“下降线”内侧。分别在41.7%和22.2%的标本中发现了P1和P2。
本研究从内镜角度定义了上颌窦后壁的特征。这些标志在翼腭窝手术中识别上颌动脉及其分支可能有用。
无。
