基于CT三维重建技术测量国人正常关节盂参数，探究关节盂宽度与高度相关性，并分析国人关节盂形态。

回顾性收集2020年3月至2022年5月间收治的96例（102肩）非骨性肩关节疾病患者基本信息及肩关节影像学CT数据。采用Mimics软件对肩胛骨进行三维建模并测量记录关节盂高度、宽度，同时记录关节盂形态。分析关节盂高度与宽度相关性，比较不同性别组及关节盂形态组的关节盂高度、宽度及宽高比值参数，分析关节盂各参数与年龄的相关性。

测量结果显示，国人关节盂宽度为（28.71±2.76）mm，高度为（36.89±3.15）mm，关节盂宽度/高度比值为0.78±0.05。关节盂宽度与高度之间存在显著相关性（R²=0.78，P<0.001），关节盂宽度=3.4 mm+0.68×关节盂高度。男女组间对比分析显示，关节盂高度、宽度存在显著差异（P<0.001），而宽度/高度比值差异无统计学意义（P=0.998）。不同关节盂形态组间宽度/高度比值差异无统计学意义（P=0.241）。与梨形关节盂组（27.61±2.47）mm相比，椭圆形（29.39±2.69）mm及倒置逗号形关节盂组（29.68±3.11）mm的宽度值更大，且差异具有统计学意义（P=0.004）。关节盂宽度及宽度/高度比值随着年龄的增长而增加（P=0.029，P=0.001）。

国人关节盂宽度/高度比值为0.78，建立了一个通过关节盂高度预测宽度的公式：关节盂宽度=3.4 mm+0.68×关节盂高度。倒置逗号形和椭圆形关节盂宽度值更大，且关节盂宽/高比值及宽度会随着年龄的增长而增加。

Recurrent anterior shoulder dislocation is a common shoulder condition, often occurring in young individuals engaged in contact or throwing sports. Research suggests that glenoid bone socket deficiency accounts for up to 90% of shoulder joint instability cases. Most experts agree that when bone loss exceeds 20%-25%, procedures such as labral repair and capsular tightening alone have a high failure rate, often necessitating bone repair surgeries. Hence, accurate assessment of glenoid bone defects is crucial in planning preoperative strategies and evaluating treatment outcomes for individuals with recurrent anterior shoulder dislocation. Currently, various methods are used in clinical practice to quantify glenoid bone defects, including X-rays, 2D and 3D CT scans, and MRI. 3D CT scans are the most commonly utilized among these due to their higher accuracy. A cadaveric study revealed a standardized circular shape in the lower part of the scapular glenoid, serving as a comparative reference for quantifying glenoid bone defects. Several techniques for quantifying glenoid bone defects exist, generally involving constructing the best-fit circle based on imaging views and further quantification through linear or surface area measurements. Many of these methods entail constructing the best-fit circle using the lower two-thirds of the healthy-side glenoid and applying this to the affected side to quantify bone defects. A consensus statement from experts suggests that modeling the lower two-thirds of the scapular glenoid as a standard circle on a 3D CT scan can effectively quantify glenoid bone defects.

To investigate the correlation between glenoid width and height and the analysis of the glenoid morphology based on the parameters of Chinese normal glenoid by CT 3D reconstruction technique.

A retrospective collection of essential information and shoulder joint imaging CT data was conducted on 96 cases (102 shoulders) of non-osseous shoulder joint disease patients treated between March 2020 and May 2022. The Mimics software was utilized for three-dimensional modeling of the scapula, and measurements were recorded for the height and width of the glenoid cavity, along with documentation of the glenoid cavity shape. Correlation analysis between the height and width of the glenoid cavity was performed. Comparison was made between different gender groups and glenoid cavity morphology groups in terms of glenoid cavity height, width, and width-to-height ratio parameters. The correlation between various glenoid cavity parameters and age was also analyzed.

Measurement results showed that the width of the glenoid cavity for the Chinese population was (28.71±2.76) mm, the height was (36.89 ± 3.15) mm, and the width-to-height ratio was 0.78 ± 0.05. There was a significant correlation between the width and height of the glenoid cavity (R²=0.78, P<0.001), with the formula for glenoid width being 3.4 mm + 0.68×glenoid height. Comparative analysis between male and female groups revealed significant differences in glenoid cavity height and width (P<0.001), while the width-to-height ratio showed no statistical difference (P= 0.998). There was no statistical difference in the width-to-height ratio among different glenoid cavity morphology groups (P=0.241). Compared to the pear-shaped glenoid cavity group (27.61 ± 2.47) mm, the width values were larger in the oval (29.39 ± 2.69) mm and inverted comma-shaped glenoid cavity groups (29.68±3.11) mm, with significant differences (P=0.004). The glenoid cavity width and width-to-height ratio increased with age (P=0.029, 0.001) .

The width-to-height ratio of the Chinese glenoid cavity is 0.78. We established a formula to predict the width through the glenoid cavity height: Glenoid Width = 3.4 mm + 0.68×Glenoid Height. The inverted comma-shaped and oval glenoid cavities have larger width values, and the glenoid cavity width-to-height ratio and width increase with age.