Foot orthotics Indications flat foot, plantar fasciitis, calcaneal spur, matatarsalgia, sports, valgus feet. Hallux valgus Over-pronation can lead to various foot problems such as heel pain and ball of foot pain. Because our feet are the foundation of our body, poorly valigned feet may also cause problems in other parts of the body, resulting in shin pain, aching legs, knee pain even lower back pain.