The plantar fascia is a thickened fibrous aponeurosis that originates from the medial tubercle of the calcaneus, runs forward to insert into the deep, short transverse ligaments of the metatarsal heads, dividing into 5 digital bands at the metatarsophalangeal joints and continuing forward to form the fibrous flexor sheathes on the plantar aspect of the toes. Small plantar nerves are invested in and around the plantar fascia, acting to register and mediate pain.
Identified risk factors for plantar fasciitis include excessive running, standing on hard surfaces for prolonged periods of time, high arches of the feet, the presence of a leg length inequality, and flat feet. The tendency of flat feet to excessively roll inward during walking or running makes them more susceptible to plantar fasciitis. Obesity is seen in 70% of individuals who present with plantar fasciitis and is an independent risk factor. Studies have suggested a strong association exists between an increased body mass index and the development of plantar fasciitis. Achilles tendon tightness and inappropriate footwear have also been identified as significant risk factors.
Plantar fasciosis is characterized by pain at the bottom of the heel with weight bearing, particularly when first arising in the morning; pain usually abates within 5 to 10 min, only to return later in the day. It is often worse when pushing off of the heel (the propulsive phase of gait) and after periods of rest. Acute, severe heel pain, especially with mild local puffiness, may indicate an acute fascial tear. Some patients describe burning or sticking pain along the plantar medial border of the foot when walking.
Your doctor will check your feet and watch you stand and walk. He or she will also ask questions about your past health, including what illnesses or injuries you have had. Your symptoms, such as where the pain is and what time of day your foot hurts most. How active you are and what types of physical activity you do. Your doctor may take an X-ray of your foot if he or she suspects a problem with the bones of your foot, such as a stress fracture.
Non Surgical Treatment
In the early stages of plantar fasciitis resting the foot may ease the pain. Medication to reduce inflammation should help but should only be used short term. Strapping may temporarily reduce the pain. All of the above therapies are only temporary measures and the pain is likely to reoccur if the cause of the abnormal pressure which has triggered the plantar fasciitis has not been identified. In order to establish the cause of the plantar fasciitis a biomechanical assessment may be required.
Surgery is usually not needed for plantar fasciitis. About 95 out of 100 people who have plantar fasciitis are able to relieve heel pain without surgery. Your doctor may consider surgery if non-surgical treatment has not helped and heel pain is restricting your daily activities. Some doctors feel that you should try non-surgical treatment for at least 6 months before you consider surgery. The main types of surgery for plantar fasciitis are Plantar fascia release. This procedure involves cutting part of the plantar fascia ligament . This releases the tension on the ligament and relieves inflammation . Other procedures, such as removing a heel spur or stretching or loosening specific foot nerves. These surgeries are usually done in combination with plantar fascia release when there is lasting heel pain and another heel problem. Experts in the past thought that heel spurs caused plantar fasciitis. Now experts generally believe that heel spurs are the result, not the cause, of plantar fasciitis. Many people with large heel spurs never have heel pain or plantar fasciitis. So surgery to remove heel spurs is rarely done.