Custom-made corrective shoes are one of the more effective interventions for children's flat feet, which can slowly relieve children's flat feet. Orthopedic insoles are made of polymer materials, which support patients' feet through certain flexibility and strength. Ordinary insoles are flat, while orthopedic insoles are placed at the arch of the foot. The patient's foot shape can be corrected by correcting insoles. Just like myopia needs optometry first, everyone's sole is unique, so orthopedic insoles need to be customized and will not be universal.

Flat feet:

Due to talus varus, calcaneus valgus and arch collapse, the load-bearing lines of lower limbs (femoral head midpoint, patella midpoint and webbed toes 1 2 between toes) move inward without passing through webbed toes 1 2. Those with valgus deformity and clinical symptoms are called flatfoot. The light person's ability to walk for a long distance decreases, and the heavy person often shows abnormal gait, ankle pain and swelling. Then it may cause pain and arthritis in knees, hips, waist and back.