The plantar fascia is a thickened fibrous aponeurosis that originates from the medial tubercle of the calcaneus and runs forward to form the longitudinal foot arch. The function of the plantar fascia is to provide static support of the longitudinal arch and dynamic shock absorption. Individuals with pes planus (low arches or flat feet) or pes cavus (high arches) are at increased risk for developing plantar fasciitis.
Plantar fasciitis generally occurs over time, rather than being the result of a single event. Micro trauma from repetitive stress to the tissue often combines with a biomechanical deficiency of the foot to produce the condition. In addition, arthritic and metabolic factors may contribute to the development of this injury, (though they are unlikely to affect young athletes). A variety of training errors commonly lead to plantar fasciitis, particularly a rapid increase in either volume or intensity of athletic activity. Volume refers to the distance or time an athlete performs, while intensity refers to the pace of activity and/or the recovery time allowed following performance.
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 may look at your feet and watch the way you stand, walk and exercise. He can also ask you questions about your health history, including illnesses and injuries that you had in your past. The symptoms you have such as the pain location or when does your foot hurts most. Your activity routine such as your job, exercise habits and physical activities preformed. Your doctor may decide to use an X-ray of your foot to detect bones problems. MRI or ultrasound can also be used as further investigation of the foot condition.
Non Surgical Treatment
Night splints usually are designed to keep a person’s ankle in a neutral position overnight. Most individuals naturally sleep with the feet plantar-flexed, a position that causes the plantar fascia to be in a foreshortened position. A night dorsiflexion splint allows passive stretching of the calf and the plantar fascia during sleep. Theoretically, it also allows any healing to take place while the plantar fascia is in an elongated position, thus creating less tension with the first step in the morning. A night splint can be molded from plaster or fiberglass casting material or may be a prefabricated, commercially produced plastic brace. Several studies have shown that use of night splints has resulted in improvement in approximately 80 percent of patients using night splints. Other studies found that night splints were especially useful in individuals who had symptoms of plantar fasciitis that had been present for more than 12 months. Night splints were cited as the best treatment by approximately one third of the patients with plantar fasciitis who tried them. Disadvantages of night splints include mild discomfort, which may interfere with the patient’s or a bed partner’s ability to sleep.
If treatment hasn’t worked and you still have painful symptoms after a year, your GP may refer you to either an orthopaedic surgeon, a surgeon who specialises in surgery that involves bones, muscles and joints, a podiatric surgeon, a podiatrist who specialises in foot surgery. Surgery is sometimes recommended for professional athletes and other sportspeople whose heel pain is adversely affecting their career. Plantar release surgery. Plantar release surgery is the most widely used type of surgery for heel pain. The surgeon will cut the fascia to release it from your heel bone and reduce the tension in your plantar fascia. This should reduce any inflammation and relieve your painful symptoms. Surgery can be performed either as, open surgery, where the section of the plantar fascia is released by making a cut into your heel, endoscopic or minimal incision surgery – where a smaller incision is made and special instruments are inserted through the incision to gain access to the plantar fascia. Endoscopic or minimal incision surgery has a quicker recovery time, so you will be able to walk normally much sooner (almost immediately), compared with two to three weeks for open surgery. A disadvantage of endoscopic surgery is that it requires both a specially trained surgical team and specialised equipment, so you may have to wait longer for treatment than if you were to choose open surgery. Endoscopic surgery also carries a higher risk of damaging nearby nerves, which could result in symptoms such as numbness, tingling or some loss of movement in your foot. As with all surgery, plantar release carries the risk of causing complications such as infection, nerve damage and a worsening of your symptoms after surgery (although this is rare). You should discuss the advantages and disadvantages of both techniques with your surgical team. Extracorporeal shockwave therapy (EST) is a fairly new type of non-invasive treatment. Non-invasive means it does not involve making cuts into your body. EST involves using a device to deliver high-energy soundwaves into your heel. The soundwaves can sometimes cause pain, so a local anaesthetic may be used to numb your heel. It is claimed that EST works in two ways. It is thought to, have a “numbing” effect on the nerves that transmit pain signals to your brain, help stimulate and speed up the healing process. However, these claims have not yet been definitively proven. The National Institute for Health and Care Excellence (NICE) has issued guidance about the use of EST for treating plantar fasciitis. NICE states there are no concerns over the safety of EST, but there are uncertainties about how effective the procedure is for treating heel pain. Some studies have reported that EST is more effective than surgery and other non-surgical treatments, while other studies found the procedure to be no better than a placebo (sham treatment).
Plantar fasciitis can be a nagging problem, which gets worse and more difficult to treat the longer it’s present. To prevent plantar fasciitis, run on soft surfaces, keep mileage increases to less than 10 percent per week, and visit a specialty running shop to make sure you’re wearing the proper shoes for your foot type and gait. It’s also important to stretch the plantar fascia and Achilles tendon.