Overview
The plantar fascia is a thick, ligamentous connective tissue that runs from the heel bone to the ball of the foot. This strong and tight tissue helps maintain the arch of the foot. It is also one of the major transmitters of weight across the foot as you walk or run. Thus, tremendous stress is placed on the plantar fascia, often leading to plantar fasciitis- a stabbing or burning pain in the heel or arch of the foot. Plantar fasciitis is particularly common in runners. People who are overweight, women who are pregnant and those who wear shoes with inadequate support are also at a higher risk. Prolonged plantar fasciitis frequently leads to heel spurs, a hook of bone that can form on the heel bone. The heel spur itself is not thought to be the primary cause of pain, rather inflammation and irritation of the plantar fascia is the primary problem.
Causes
Your plantar fascia (fay-sha) supports the arch of your foot as you run or walk. It is a thick, inelastic, fibrous band that starts in your heel, runs along the bottom of your foot, and spreads out to your toes. Plantar fasciitis is an inflammation of this fibrous band. If you are female or have a job that requires a lot of walking or standing on hard surfaces you are more at risk for plantar fasciitis. Additional causes include Being overweight, Having flat feet or high arches, Wearing shoes with poor support, Walking or running for exercise, Tight calf muscles that limit how far you can flex your ankles, Running on soft terrain, Increase in activity level, Genetic predisposition.
Symptoms
Plantar fasciitis generally occurs in one foot. Bilateral plantar fasciitis is unusual and tends to be the result of a systemic arthritic condition that is exceptionally rare among athletes. Males suffer from a somewhat greater incidence of plantar fasciitis than females, perhaps as a result of greater weight coupled with greater speed and ground impact, as well as less flexibility in the foot. Typically, the sufferer of plantar fasciitis experiences pain upon rising after sleep, particularly the first step out of bed. Such pain is tightly localized at the bony landmark on the anterior medial tubercle of the calcaneus. In some cases, pain may prevent the athlete from walking in a normal heel-toe gait, causing an irregular walk as means of compensation. Less common areas of pain include the forefoot, Achilles tendon, or subtalar joint. After a brief period of walking, the pain usually subsides, but returns again either with vigorous activity or prolonged standing or walking. On the field, an altered gait or abnormal stride pattern, along with pain during running or jumping activities are tell-tale signs of plantar fasciitis and should be given prompt attention. Further indications of the injury include poor dorsiflexion (lifting the forefoot off the ground) due to a shortened gastroc complex, (muscles of the calf). Crouching in a full squat position with the sole of the foot flat on the ground can be used as a test, as pain will preclude it for the athlete suffering from plantar fasciitis, causing an elevation of the heel due to tension in the gastroc complex.
Diagnosis
Diagnosis of plantar fasciitis is based on a medical history, the nature of symptoms, and the presence of localised tenderness in the heel. X-rays may be recommended to rule out other causes for the symptoms, such as bone fracture and to check for evidence of heel spurs. Blood tests may also be recommended.
Non Surgical Treatment
Most health care providers agree that initial treatment for plantar fasciitis should be quite conservative. You’ll probably be advised to avoid any exercise that is making your pain worse. Your doctor may also advise one or more of these treatment options. A heel pad. In plantar fasciitis, a heel pad is sometimes used to cushion the painful heel if you spend a great deal of time on your feet on hard surfaces. Also, over-the-counter or custom-made orthotics, which fit inside your shoes, may be constructed to address specific imbalances you may have with foot placement or gait. Stretching: Stretching exercises performed three to five times a day can help elongate the heel cord. Ice: You may be advised to apply ice packs to your heel or to use an ice block to massage the plantar fascia before going to bed each night. Pain relievers: Simple over-the-counter nonsteroidal anti-inflammatory drugs (NSAIDs), such as ibuprofen, are often helpful in decreasing inflammation and pain. If you have stomach trouble from such drugs, your health care provider may prescribe an alternative. A night splint: A night splint is sometimes used to hold your foot at a specific angle, which prevents the plantar fascia from shortening during sleep. Ultrasound: Ultrasound therapy can be performed to decrease inflammation and aid healing. Steroid injections: Anti-inflammatory steroid injections directly into the tissue around your heel may be temporarily helpful. However, if these injections are used too many times, you may suffer other complications, such as shrinking of the fat pad of your heel, which you need for insulation. Loss of the fat pad could actually increase your pain, or could even rupture the plantar fascia in rare cases. Walking cast: In cases of long-term plantar fasciitis unresponsive to usual treatments, your doctor may recommend that you wear a short walking cast for about three weeks. This ensures that your foot is held in a position that allows the plantar fascia to heal in a stretched, rather than shortened, position. Shock wave therapy, Extracorporeal shock wave therapy which may be prescribed prior to considering surgery if your symptoms have persisted for more than six months. This treatment does not involve any actual incisions being made rather it uses a high intensity shock wave to stimulate healing of the plantar fascia.
Surgical Treatment
The most common surgical procedure for plantar fasciitis is plantar fascia release. It involves surgical removal of a part from the plantar fascia ligament which will relieve the inflammation and reduce the tension. Plantar fascia release is either an open surgery or endoscopic surgery (insertion of special surgical instruments through small incisions). While both methods are performed under local anesthesia the open procedure may take more time to recover. Other surgical procedures can be used as well but they are rarely an option. Complications of plantar fasciitis surgery are rare but they are not impossible. All types of plantar fasciitis surgery pose a risk of infection, nerve damage, and anesthesia related complications including systemic toxicity, and persistence or worsening of heel pain.
Prevention
Making sure your ankle, Achilles tendon, and calf muscles are flexible can help prevent plantar fasciitis. Stretch your plantar fascia in the morning before you get out of bed. Doing activities in moderation can also help.
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