2025 ISAKOS Biennial Congress ePoster
Anatomic Morphometry of the Coracoid Process and Lateral Clavicle for Management of Glenoid Bone Loss: A Three-Dimensional Analysis in the Korean Population
Du-Han Kim, Prof. , Daegu KOREA, REPUBLIC OF
Chul-Hyun Cho, MD, PhD, Deagu KOREA, REPUBLIC OF
Keimyung University, Daegu, KOREA, REPUBLIC OF
FDA Status Not Applicable
Summary
The morphologies of the coracoid process and the distal clavicle showed significant correlation with gender and height. The coracoid length tends to be smaller in Asians than Caucasians, thus, the distal clavicle might be a suitable option for reconstruction of instability-related glenoid bone loss in the Asian population.
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Abstract
Background
Proper sizing of the coracoid is an important factor when using the Latarjet procedure. However, several studies have reported that the Asian coracoid may not be large enough for the Latarjet. A distal clavicle has recently been suggested as a locally available osteoarticular graft for restoring glenoid bone loss. The objective of this study is to examine the anatomic morphometry of the coracoid and distal clavicle in the Korean population.
Methods
A total of 66 cadaveric coracoids and clavicles (32 males and 34 females) underwent continuous 1.0mm slice computed tomography (CT) scans. CT images were imported into Mimics® software for reconstruction of a 3D model of the coracoid process and clavicle. The length, width, and height of the coracoid process were measured. In addition, the width and height within 10mm of the lateral end of the clavicle were also measured. Analysis of correlation between measured parameters and demographics data was performed.
Results
The mean length of the coracoid was 19.2 ± 2.0 mm, the width of the coracoid was 15.5 ± 1.7 mm, and the height of the coracoid was 11.5 ± 1.6 mm. The width and height of the 10 mm point of the clavicle were 22.1 ± 3.7 mm and 12.0 ± 1.8 mm. The results showed that females had smaller measurements than males in all parameters (P < .05). Height showed significant positive correlation with all measured parameters (P < .05). An equation for estimating coracoid length using these findings is as follows: coracoid length (in mm) = 11.70 + (0.041 * height) + 1.86 (the last number is added for males), the width of 10 mm point of the clavicle = 0.16 x Height + 3.18 (the last number is added for males).
Conclusion
The morphologies of the coracoid process and the distal clavicle showed significant correlation with gender and height. The coracoid length tends to be smaller in Asians than Caucasians, thus, the distal clavicle might be a suitable option for reconstruction of instability-related glenoid bone loss in the Asian population.