Department of Periodontology, University of Alabama at Birmingham, Birmingham, AL.
Clin Adv Periodontics. 2021 Mar;11(1):22-26. doi: 10.1002/cap.10104. Epub 2020 Apr 13.
Branches of the posterior superior artery (PSA) are often found within the lateral wall of the maxillary sinus. Most vessels are small and laceration of the blood vessel during sinus augmentation is not uncommon. Such lacerations can result in intra-surgical bleeding complicating the augmentation procedure, otherwise they are typically non-life threatening. The purpose of the present case report is to document a maxillary sinus floor augmentation procedure involving displacement of large artery from its bony canal using a piezoelectric device.
A maxillary sinus floor augmentation procedure was performed in a 58-year-old healthy female planned for a future implant supported fixed prosthesis. The preoperative computed tomography scan revealed a bony canal within the lateral maxillary sinus wall of the alveolar ridge. The artery tracing obvious on the lateral wall was elevated along with the Schneiderian membrane without any complication or hemorrhage using a piezoelectric device system. The postoperative healing was uneventful.
Elevation of a large diameter PSA branch with the Schneiderian membrane significantly minimizes the risk of vessel laceration and hemorrhagic complications.
上颌窦外侧壁常有后上动脉分支（PSA）。大多数血管较小，在窦腔增大过程中血管撕裂并不少见。这种撕裂会导致术中出血，使增大过程复杂化，但通常不会危及生命。本病例报告的目的是记录使用压电设备将大血管从其骨管中移位的上颌窦底增大过程。
对一名计划未来植入物支持固定义齿的 58 岁健康女性进行了上颌窦底增大术。术前 CT 扫描显示牙槽嵴上颌窦外侧壁有一个骨管。使用压电设备系统，沿 Schneiderian 膜抬高外侧壁上明显的动脉，无任何并发症或出血。术后愈合顺利。
Schneiderian 膜抬高大直径 PSA 分支可显著降低血管撕裂和出血并发症的风险。
