Chinese Journal of Clinical Anatomy ›› 2022, Vol. 40 ›› Issue (4): 377-382.doi: 10.13418/j.issn.1001-165x.2022.4.01

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Anatomical classification of posterior superior iliac spine and its clinical significance

Qi Ji1,2,3, Li Jing2, Wang Haizhou1, Chen Ping1, Lin Dingkun1, Chen Haiyun1, Ping Ruiyue2, Xu Yanxiao4, Li Yikai5*   

  1. 1.Department of Geriatric Fracture, Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou 510120, Guangdong Province, China; 2. The Second Clinical School of Guangzhou University of Chinese Medicine, Guangzhou 510006, Guangdong Province, China; 3. Wangjing Hospital, China Academy of Chinese Medical Sciences, Beijing 100020, China; 4. Suzhou Yongding Hospital, Suzhou 215200, Jiangsu Province, China; 5. Department of TCM Bone-Setting, Southern Medical University, Guangzhou 510515, Guangdong Province, China
  • Received:2020-11-09 Online:2022-07-25 Published:2022-07-25

Abstract:   Objective    To study the anatomical characteristics of posterior superior iliac spine and explore its clinical significance.    Methods    Two hundred and eighty dry hip specimens of humans were selected. The posterior superior iliac spine was point A, the anterior superior iliac spine was point B, the ischial tuberosity was point C, the highest point of the iliac spine was point D, the pubic tuberosity was point E, and the midpoint of the posterior edge of the articular surface was point F. The width of point A of the posterior superior iliac spine was W0, and the thickness of point A was H0. The maximum width of the posterior part of the iliac crest was Wmax, and the distance from point A to the posterior part of the iliac crest was D0. The width of the iliac crest was measured at 0.5 cm, 1.0 cm, 1.5 cm, and 2.0 cm from point A, which were recorded as W1, W2, W3, W4. The part of the iliac crest was taken as point G and the width of point G was denoted as W5. The lengths of AB, AC, AD, AE, AF, AG, and CD were measured, respectively.    Results    The morphology of the posterior superior iliac spine was roughly divided into the following 4 types: type I "V" (107 cases, accounting for 38.2%), type II "U" (121 cases, accounting for 43.2%), type III "W" (31 cases, accounting for 11.1%), type IV "Proliferative" (21 cases, accounting for 7.5%). The AB length of type Ⅰ was significantly shorter than that of type Ⅲ and Ⅳ, the AF distance of type Ⅰ was significantly shorter than that of type Ⅱ and Ⅲ. W0, W1 and H0 of type Ⅰ were significantly smaller than that of type Ⅱ, Ⅲ, and Ⅳ, and W0 of type Ⅲ was greater than that of type I, type II and type IV, all were statistically significant (P<0.05). Conclusions    There are 4 morphological variations of the posterior superior iliac spine, with a "U" shape as the main one, which has of certain clinical implication. 

Key words: Posterior superior iliac spine; ,  , Anatomy; ,  , Clinical significance

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