Keles Ali, Ayturk Busra Gul
Department of Anatomy, Faculty of Medicine, Karamanoglu Mehmetbey University, 70200, Karaman, Türkiye.
Department of Anatomy, The Institute of Health Sciences, Karamanoglu Mehmetbey University, Karaman, Türkiye.
Anat Sci Int. 2025 Apr 25. doi: 10.1007/s12565-025-00843-4.
The suprascapular notch is one of the anatomical sites most commonly exposed to compressive and traction injuries of the suprascapular nerve. In this preliminary study, we aimed to evaluate the morphological and morphometric features of the notch to enhance the diagnostic accuracy and therapeutic outcomes of nerve compression. This retrospective study was conducted using computed tomography images of the scapula obtained between January 1, 2022, and August 30, 2024. A total of 852 scapulae were evaluated, of which 448 belonged to males and 404 to females. Morphometric measurements included superior transverse diameter, middle transverse diameter, and maximal depth of the notch. In addition, the notch was classified using both the Polguj and Rengachary classification systems. When the measurement parameters were compared between genders, the values were higher in males; however, only the maximal depth showed a statistically significant difference (p < 0.05). According to the Polguj classification, Type 3 was the most common (63.38%). Based on the Rengachary classification, the U-shaped form was the most frequently observed (65.02%), while the J-shaped form was the rarest (3.41%). The foramen shape was detected in 5.75% of cases. The J-shaped variant was found to be approximately four times more common in males than in females. Knowledge of the anatomical variations of the notch is likely to be beneficial for both endoscopic and open surgical interventions in the suprascapular region. In particular, three-dimensional computed tomography imaging may be useful in preoperative planning for arthroscopic resection of ossified ligament.
肩胛上切迹是肩胛上神经最常遭受压迫和牵拉伤的解剖部位之一。在这项初步研究中，我们旨在评估该切迹的形态和形态测量特征，以提高神经受压的诊断准确性和治疗效果。本回顾性研究使用了2022年1月1日至2024年8月30日期间获取的肩胛骨计算机断层扫描图像。共评估了852块肩胛骨，其中448块属于男性，404块属于女性。形态测量包括切迹的上横径、中横径和最大深度。此外，还使用了Polguj分类系统和Rengachary分类系统对切迹进行分类。当比较性别之间的测量参数时，男性的值更高；然而，只有最大深度显示出统计学上的显著差异（p<0.05）。根据Polguj分类，3型最为常见（63.38%）。根据Rengachary分类，U形最为常见（65.02%），而J形最为罕见（3.41%）。在5.75%的病例中检测到孔形。发现J形变异在男性中比在女性中常见约四倍。了解切迹的解剖变异可能对肩胛上区域的内镜和开放手术干预都有益。特别是，三维计算机断层扫描成像可能有助于骨化韧带关节镜切除的术前规划。
