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The 3D simulation of clothing design (3DS) is the process of textile fabrics that requires efficient mechanical simulation models to replicate their nonlinear mechanical properties. Developing 3D digital models allows pattern designers to inspect and experiment with them before creating physical prototypes. The main challenge comes from the multifunctionality of clothing simulation attributes. Computer-aided design (CAD) software enables designers to draw ideas, create patterns, model clothing, and customize according to specific body types and needs. The potential of CAD in fashion design makes design more inclusive and ecologically responsible. Therefore, in the proposed method, 3D simulation-assisted computer-aided design (3DS-CAD) has been used by manufacturers. Compared with traditional 3D manual pattern development, manufacturers can simulate the fit and behavior of clothing in a virtual environment, enhance visualization, and accelerate design iteration. CAD system is a software that helps create textile components, such as printed surface patterns and clothing. This system uses specialized computer software to generate, modify, analyze, and optimize designs. This program improves the efficiency of fashion designers by enhancing design quality. With the help of modern technologies such as 3D body scanners and virtual clothing simulation software, it is ensured that clothing perfectly fits the virtual human model in 3D space. Due to the trend of customization, clothing manufacturing can be completed faster and more accurately.

We report a patient with mature Madelung deformity who underwent radial and ulnar corrective osteotomy using three-dimensional (3D) simulation. An osteotomy model was created using the computer-aided design (CAD) software based on the computed tomography (CT) data. After correcting the ulna, the osteotomy angle of the radius was determined using the location of the lunate as a landmark in the 3D plane created by the longitudinal axis of the corrected ulna. Consequently, the ulna was flexed 3° and shortened by 5 mm, and the radius was extended at 36° and ulna deviated at 25° by open wedge osteotomy. The radial inclinations, volar tilt and ulnar variance were 25°, 45° and 5 mm preoperatively, and improved to 22°, 10° and 0 mm after surgery. At the 18-month follow-up, the patient reported no pain even during sports activity. The preoperative 3D simulation enabled precise preoperative planning and accurate correction of the Madelung deformity.

Level of Evidence: Level V (Therapeutic)