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Abstract：
BACKGROUND: The lamina papyracea is the thin line between the ethmoid sinus and the medial orbital wall. Knowledge of the presence of the lamina papyracea dehiscence (LPD) bears critical importance to prevent misdiagnosis of fractures at this level and to define the anatomy before sinonasal surgery, including Functional Endoscopic Sinus Surgery (FESS). The present study is therefore intended to determine the incidence of LPD in paranasal computed tomography, to identify its imaging characteristics in CT, and to compare with the literature.
METHODS: The current study included patients who underwent paranasal CT scanning for any reason in our clinic between January 2018 and January 2022. Patients were evaluated in terms of age, gender, and presence of LPD. Patients with dehiscence were evaluated in terms of age, gender, dehiscence localization (right, left), tissue at the level of dehiscence, dehiscence size, and dehiscence grade.
RESULTS: 1000 patients with a mean age of 32. ± 16.3 (min = 18-max = 79) were included in the study. 20 patients (2%) were found to have LPD. Of those with LPD, 14 (70%) were grade 1, 4 (20%) were grade 2 and 2 (10%) were grade 3. Again of those with LPD, 14 (70%) had LPD localized on the right and 6 (30%) had LPD on the left. In 12 (60%) of the patients with LPD, herniated tissue was detected. Among these patients with herniation, fatty tissue herniation was observed in 10 (83.3%) and medial rectus muscle herniation was observed in 2 (16.7%).
CONCLUSIONS: Comprehensive evaluation for and identification of LPD are very important before possible sinus surgery.
METHODS: The current study included patients who underwent paranasal CT scanning for any reason in our clinic between January 2018 and January 2022. Patients were evaluated in terms of age, gender, and presence of LPD. Patients with dehiscence were evaluated in terms of age, gender, dehiscence localization (right, left), tissue at the level of dehiscence, dehiscence size, and dehiscence grade.
RESULTS: 1000 patients with a mean age of 32. ± 16.3 (min = 18-max = 79) were included in the study. 20 patients (2%) were found to have LPD. Of those with LPD, 14 (70%) were grade 1, 4 (20%) were grade 2 and 2 (10%) were grade 3. Again of those with LPD, 14 (70%) had LPD localized on the right and 6 (30%) had LPD on the left. In 12 (60%) of the patients with LPD, herniated tissue was detected. Among these patients with herniation, fatty tissue herniation was observed in 10 (83.3%) and medial rectus muscle herniation was observed in 2 (16.7%).
CONCLUSIONS: Comprehensive evaluation for and identification of LPD are very important before possible sinus surgery.
摘要：
背景：板纸是筛窦和眶内壁之间的细线。了解层板纸莎草裂开（LPD）的存在对于防止该水平骨折的误诊以及在鼻窦手术前定义解剖结构至关重要。包括功能性鼻内窥镜手术（FESS）。因此，本研究旨在确定鼻旁计算机断层扫描中LPD的发生率，为了识别其在CT中的成像特征，并与文献进行比较。
方法：目前的研究包括2018年1月至2022年1月在我们的诊所因任何原因接受鼻旁CT扫描的患者。根据年龄对患者进行评估，性别,还有LPD的存在.对裂开患者的年龄进行了评估，性别,开裂定位(右，左),组织处于开裂水平，开裂的大小，和开裂等级。
结果：1000名患者，平均年龄32岁。±16.3（min=18-max=79）纳入研究。发现20例患者（2％）患有LPD。在那些有LPD的人中，14（70％）为1级，4（20％）为2级，2（10％）为3级。同样是LPD的人，14（70％）的LPD位于右侧，6（30％）的LPD位于左侧。在12例(60%)LPD患者中,检测到疝组织。在这些疝患者中，10例（83.3％）观察到脂肪组织疝，2例（16.7％）观察到内侧直肌疝。
结论：在可能的鼻窦手术之前，对LPD的综合评估和识别非常重要。
方法：目前的研究包括2018年1月至2022年1月在我们的诊所因任何原因接受鼻旁CT扫描的患者。根据年龄对患者进行评估，性别,还有LPD的存在.对裂开患者的年龄进行了评估，性别,开裂定位(右，左),组织处于开裂水平，开裂的大小，和开裂等级。
结果：1000名患者，平均年龄32岁。±16.3（min=18-max=79）纳入研究。发现20例患者（2％）患有LPD。在那些有LPD的人中，14（70％）为1级，4（20％）为2级，2（10％）为3级。同样是LPD的人，14（70％）的LPD位于右侧，6（30％）的LPD位于左侧。在12例(60%)LPD患者中,检测到疝组织。在这些疝患者中，10例（83.3％）观察到脂肪组织疝，2例（16.7％）观察到内侧直肌疝。
结论：在可能的鼻窦手术之前，对LPD的综合评估和识别非常重要。
