Department of Orthopaedics, Chinese and Western Medicine Hospital of Yibing, Yibing, China.
School of Clinical Medicine, Southwest Medical University, Luzhou, China.
Folia Morphol (Warsz). 2023;82(2):325-331. doi: 10.5603/FM.a2022.0017. Epub 2022 Feb 21.
The purpose of this study was to examine the various shapes and record the morphometric data of the glenoid cavity in a Chinese population.
A total of 501 scapulae, 247 left and 254 right, were analysed. We classified the shape of the glenoid cavity as type I (pear-shaped), type II (oval-shaped), type III (teardrop-shaped), type IV (calabash-shaped) or type V (inverted comma-shaped). Four defined parameters, the superior-inferior glenoid diameter (AB), upper anterior-posterior glenoid diameter (CD), lower anterior-posterior glenoid diameter (EF) and glenoid index (GI), were measured, and five shapes were classified via three-dimensional reconstruction.
The mean AB, CD, EF and GI values of the glenoid were 3.51 ± 0.41 cm, 1.95 ± 0.28 cm, 2.60 ± 0.34 cm, and 1.35 ± 0.12 cm, respectively. The AB value of type II glenoid cavities was significantly smaller than that of type I and III glenoid cavities (p < 0.05), but the GI value of type II glenoid cavities was larger than that of type III cavities (p < 0.05). The CD value showed a difference between type I and type III glenoid cavities (p < 0.05). For the EF parameter, the values of type III glenoid cavities were significantly larger than those of type I and II glenoid cavities (p < 0.05).
Measuring and observing the variety of shapes and sizes of the glenoid cavity in Chinese people is conducive to for better understand its morphological features. This information can also guide surgeons in the design and selection of suitable prostheses for total shoulder arthroplasty in the Chinese population in order to reduce postoperative complications.
本研究旨在研究中国人的肩胛盂窝的各种形状并记录其形态计量学数据。
共分析了 501 例肩胛骨，其中 247 例为左侧，254 例为右侧。我们将肩胛盂窝的形状分为 I 型（梨形）、II 型（椭圆形）、III 型（泪滴形）、IV 型（葫芦形）或 V 型（倒逗号形）。测量了四个定义的参数，即肩胛盂上下径（AB）、肩胛盂前后径（CD）、肩胛盂下前后径（EF）和肩胛盂指数（GI），并通过三维重建对五种形状进行分类。
肩胛盂的平均 AB、CD、EF 和 GI 值分别为 3.51 ± 0.41cm、1.95 ± 0.28cm、2.60 ± 0.34cm 和 1.35 ± 0.12cm。II 型肩胛盂窝的 AB 值明显小于 I 型和 III 型肩胛盂窝（p < 0.05），但 II 型肩胛盂窝的 GI 值大于 III 型（p < 0.05）。CD 值在 I 型和 III 型肩胛盂窝之间存在差异（p < 0.05）。对于 EF 参数，III 型肩胛盂窝的值明显大于 I 型和 II 型肩胛盂窝（p < 0.05）。
测量和观察中国人肩胛盂窝的各种形状和大小有助于更好地了解其形态特征。这些信息还可以指导外科医生在为中国人进行全肩关节置换术时设计和选择合适的假体，以减少术后并发症。
