Bui Dang Minh Tri; Nguyen Ha Ngoc; Tran Quoc Viet; Bui Duc Thanh & Nguyen Thanh Van
The glenoid labrum is a fibrocartilaginous structure surrounding the rim of the glenoid cavity, playing a crucial role in stabilizing the shoulder joint by deepening the glenoid fossa and increasing the contact area with the humeral head. This study aimed to determine the morphological and anatomical characteristics of the glenoid labrum and glenoid cavity in the shoulder joint of adult Vietnamese cadavers, as well as to assess the differences between sexes and between the right and left sides. The sample consisted of 30 shoulder joints (22 males and 8 females) from 15 adult cadavers, preserved at the Department of Anatomy, Pham Ngoc Thach University of Medicine, Ho Chi Minh City, Vietnam. The parameters, including the width and height of the glenoid labrum and the anteroposterior and superoinferior dimensions of the glenoid cavity, were measured using a caliper with an accuracy of 0.01 mm and processed using SPSS v.26.0 software. The results showed that the average superoinferior dimension of the glenoid cavity was 29.00 ± 3.92 mm, and the average anteroposterior dimension was 16.27 ± 3.08 mm. The most common morphological shape of the glenoid cavity was oval (66.7 %). The average width of the glenoid labrum at the 6 o'clock position was significantly higher in males than in females (p = 0.002). However, there was no significant difference in the average height of the glenoid labrum between sexes (p > 0.05). The most common attachment site of the long head of the biceps tendon (LHB) was at the 11 o'clock position (56.7 %). The superior glenohumeral ligament was most commonly attached from the 12 o'clock to 1 o'clock position (66.7 %). These findings provide important information to support clinical research and surgical reconstruction of the shoulder joint.
KEY WORDS: Glenoid Labrum; Shoulder Joint; Anatomy.
MINH TRI, B. D.; HA NGOC, N.; QUOC VIET, T.; DUC THANH, B. & THANH VAN, N. Anatomical characteristics of the glenoid labrum and glenoid cavity in the shoulder joint of Vietnamese adult. Int. J. Morphol., 43(4):1253-1259, 2025.
