At Harbourside Chiropractic and Rehabilitation we also offer custom foot orthotics. Orthotics are used for people suffering from foot issues such as flat feet, plantar fasciitis, bunions and arch related issues. Foot function affects the entire body. Pain in the spine, hips, knees, and lower back can result of the foot not functioning correctly. An orthotic is a supportive device which is placed inside footwear to change the mechanical function of the foot.