Distraction Osteogenesis is a surgical technique used to lengthen bones. It involves cutting a bone and gradually separating the two ends using a device called a distractor. As the bone segments move apart, new bone tissue forms in the gap, allowing for gradual lengthening. This method is commonly used in orthopedic surgery and craniofacial reconstruction. It can help correct deformities, lengthen limbs, or improve facial structures. The process requires careful monitoring and can take several months to achieve the desired results, but it is generally considered a safe and effective procedure.