Department of Orthopaedics, Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou 510120, China.
Wang Jing Hospital, China Academy of Chinese Medical Sciences, Beijing 100102, China.
Biomed Res Int. 2022 Aug 8;2022:6290133. doi: 10.1155/2022/6290133. eCollection 2022.
The posterior superior iliac spine (PSIS) is an important anatomical landmark often involved in spinal manipulation and surgical bone harvest. Hence, knowledge of variations in the PSIS may be predictive and valuable in clinical settings. Taking the complex morphology into account, the study is aimed at proposing a classification of PSIS in the Chinese population.
An anatomical study was undertaken on 288 human ilia. First, the morphological features of variations in the PSIS were noted following visual inspection. Then, 12 variable anatomical parameters were measured in order to determine the differences based on morphology, side, and sex.
Overall, four types of PSIS were found among 288 bones, including type I "V-shape" (106, 36.8%), type II "U-shape" (121, 42.0%), type III "W-shape" (36, 12.5%), and type IV "ossification-shape" (25, 8.7%). There were no significant sex or bilateral differences in the morphological distribution of the PSIS ( > 0.05). Furthermore, the measurements showed that type I was the narrowest and type III the broadest ( < 0.05). Moreover, female specimens had an overall larger distance and width of surrounding landmarks ( < 0.05), and a significant difference was found in the width of the PSIS between the left and right sides ( < 0.05).
The PSIS samples displayed multiple morphological variations and could be classified into four types. In addition, sex-based or bilateral differences existed in the size and relative positions. It is thus likely that differences in the morphology and asymmetry of the PSIS provide references for palpation, bone harvest, and other clinical settings.
髂后上棘（PSIS）是一个重要的解剖学标志，常涉及脊柱推拿和外科取骨。因此，对 PSIS 变异的了解可能具有预测价值，并在临床实践中有重要意义。考虑到其复杂的形态，本研究旨在提出中国人 PSIS 的分类方法。
对 288 个人的髂骨进行解剖学研究。首先，通过肉眼观察记录 PSIS 变异的形态特征。然后，测量 12 个可变解剖学参数，以确定基于形态、侧别和性别差异。
在 288 块骨骼中，总体发现 4 种类型的 PSIS，包括 I 型“V 形”（106 个，36.8%）、II 型“U 形”（121 个，42.0%）、III 型“W 形”（36 个，12.5%）和 IV 型“骨化形”（25 个，8.7%）。PSIS 的形态分布在性别或双侧之间无显著差异（>0.05）。此外，测量结果显示，I 型最窄，III 型最宽（<0.05）。此外，女性标本周围标志的整体距离和宽度更大（<0.05），PSIS 的左右两侧宽度存在显著差异（<0.05）。
PSIS 样本显示出多种形态变异，可以分为 4 种类型。此外，大小和相对位置存在基于性别的或双侧差异。因此，PSIS 的形态和不对称性差异可能为触诊、取骨等临床应用提供参考。
