A custom orthotic is much more than an arch support. Orthotics realign the joints of your foot and leg to reduce abnormal strain on muscles, tendons and ligaments. Small malalignments can cause significant discomfort. Over time, abnormal function can lead to problems such as bunions, hammer toes, heel pain, tendonitis, knee, hip and back pain. Once your foot is supported properly by the orthotic, it is consistently directed into the correct position for walking, running and standing.