Anatomic classification of the acromial angle and its clinical significance

ZHOU An-Ping; YAN Hang; CHEN Yong-Hong; XIE Dong-Bo; ZHANG Yu-Ke; GUO Shi-Tao; WANG Jian-Xue

doi:10.16098/j.issn.0529-1356.2022.01.012

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Acta Anatomica Sinica ›› 2022, Vol. 53 ›› Issue (1) : 92-95. DOI: 10.16098/j.issn.0529-1356.2022.01.012

Anatomy

Anatomic classification of the acromial angle and its clinical significance

ZHOU An-ping¹ YAN Hang^2*CHEN Yong-hong² XIE Dong-bo² ZHANG Yu-ke² GUO Shi-tao² WANG Jian-xue¹ #br#

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Abstract

Objective To study the acromial angle morphologic type and measurement analysis based on CT 3D reconstruction. Methods Totally 278 cases of adult CT three-dimensional reconstruction of the shoulder morphological data were collected, and the measurement data of the different types was analyzed, its statistical significance was clarified, and the morphological characteristics to division the type of acromial angle were summarized, its diagnosis and treatment under the acromion impingement of guiding significance were discussed. Results The acromial angle was divided into three types (C shaped acromial angle, L shaped acromial angle, and double angle shaped acromial angle). Among them, L type was the most, accounting for 48.56%, followed by C type, and double angle type was the least. In comparison of the breadth of the acromion and the length of the acromion, L type was significantly longer than C type (P<0.05). The thickness of acromion at a point of the double angle shaped acromial angle was greater than that of the other two type (P<0.05). In the comparison of ∠a, the double-angle type was greater than the C type (P<0.05), and the C type was greater than the L type (P<0.05). Conclusion There are significant differences in the classification and anatomical parameters of acromial angle, and the differences are statistically significant. It has certain guiding significance to the etiology and clinical diagnosis and treatment of subacromial impingement syndrome.

Key words

Acromial angle / 3D reconstruction / Human

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ZHOU Anping YAN Hang CHEN Yong-hong XIE Dong-bo ZHANG Yu-ke GUO Shi-tao WANG Jian-xue. Anatomic classification of the acromial angle and its clinical significance[J]. Acta Anatomica Sinica. 2022, 53(1): 92-95 https://doi.org/10.16098/j.issn.0529-1356.2022.01.012

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