Tendon transfer is a surgical procedure in which a tendon is detached from its original attachment and reattached to a different location in the body. This procedure is commonly performed to improve function and mobility in patients with muscle weakness or paralysis due to injury, disease, or congenital conditions. Tendon transfer surgery can help restore muscle function, improve joint stability, and correct deformities caused by muscle imbalances. It is often used to treat conditions such as cerebral palsy, stroke, spinal cord injury, and peripheral nerve injury. The success of tendon transfer surgery depends on careful assessment of the patient's anatomy, muscle strength, and joint range of motion, as well as the skill and experience of the surgeon. Post-operative rehabilitation and physical therapy are also essential for optimal recovery and outcomes. Overall, tendon transfer surgery can significantly improve a patient's quality of life by restoring function and mobility to affected limbs.