The article "SMAS Repositioning Technique Utilizing Cog Thread: Anatomical Perspectives" by Gi-Woong Hong and Kyu-Ho Yi explores the anatomical principles behind thread lifting procedures, particularly focusing on the repositioning of the superficial musculoaponeurotic system (SMAS) layer. The authors highlight the importance of understanding the dynamic changes in facial anatomy during postural shifts, which can guide the placement of threads for effective lifting effects. Fresh cadaver studies have confirmed that threads can pass through the SMAS layer, emphasizing the need for proper insertion depth targeting this layer rather than superficial skin layers. The natural movement of tissues secured by threads results in lifting effects, but complications can arise if threads affect deeper facial muscles. Fibrous septa play a crucial role in guiding thread placement, with varying densities influencing tissue response during lifting. The authors conclude that procedures targeting SMAS repositioning using threads aim to maintain the new position of relocated tissues, and understanding structural variations in facial regions is essential for thread selection and placement. Balancing thread insertion depth and tissue traction is critical for successful outcomes, and modern thread lifting techniques prioritize SMAS repositioning to enhance lifting effects while ensuring safety and efficacy.The article "SMAS Repositioning Technique Utilizing Cog Thread: Anatomical Perspectives" by Gi-Woong Hong and Kyu-Ho Yi explores the anatomical principles behind thread lifting procedures, particularly focusing on the repositioning of the superficial musculoaponeurotic system (SMAS) layer. The authors highlight the importance of understanding the dynamic changes in facial anatomy during postural shifts, which can guide the placement of threads for effective lifting effects. Fresh cadaver studies have confirmed that threads can pass through the SMAS layer, emphasizing the need for proper insertion depth targeting this layer rather than superficial skin layers. The natural movement of tissues secured by threads results in lifting effects, but complications can arise if threads affect deeper facial muscles. Fibrous septa play a crucial role in guiding thread placement, with varying densities influencing tissue response during lifting. The authors conclude that procedures targeting SMAS repositioning using threads aim to maintain the new position of relocated tissues, and understanding structural variations in facial regions is essential for thread selection and placement. Balancing thread insertion depth and tissue traction is critical for successful outcomes, and modern thread lifting techniques prioritize SMAS repositioning to enhance lifting effects while ensuring safety and efficacy.