Plantar fasciitis was previously believed to be inflammation of the fascia near its insertion on the heel bone. The suffix (-itis) means inflammation. Studies, however, reveal that changes in the tissue associated with the injury are degenerative and not related to inflammation, at least not in the way most people typically think of inflammation. Sudden onset of heel pain may indeed be related to acute inflammation. For persistent heel pain the condition more closely resembles long-standing degeneration of the plantar fascia near its attachment than inflammation. This could explain why anti-inflammatory medications and injections have been unsuccessful at treating it. But there is more to heel pain than just the plantar fascia.
Plantar fasciitis is the most common injury of the plantar fascia and is the most common cause of heel pain. Approximately 10% of people have plantar fasciitis at some point during their lifetime. It is commonly associated with long periods of standing and is much more prevalent in individuals with excessive inward rolling of the foot, which is seen with flat feet. Among non-athletic populations, plantar fasciitis is associated with obesity and lack of physical exercise.
The heel pain characteristic of plantar fasciitis is usually felt on the bottom of the heel and is most intense with the first steps of the day. Individuals with plantar fasciitis often have difficulty with dorsiflexion of the foot, an action in which the foot is brought toward the shin. This difficulty is usually due to tightness of the calf muscle or Achilles tendon, the latter of which is connected to the back of the plantar fascia. Most cases of plantar fasciitis resolve on their own with time and respond well to conservative methods of treatment.
Your GP or podiatrist (a healthcare professional who specialises in foot care) may be able to diagnose the cause of your heel pain by asking about your symptoms and examining your heel and foot. You will usually only need further tests if you have additional symptoms that suggest the cause of your heel pain is not inflammation, such as numbness or a tingling sensation in your foot, this could be a sign of nerve damage in your feet and legs (peripheral neuropathy) your foot feels hot and you have a high temperature (fever) of 38C (100.4F) or above – these could be signs of a bone infection, you have stiffness and swelling in your heel, this could be a sign of arthritis. Possible further tests may include blood tests, X-rays – where small doses of radiation are used to detect problems with your bones and tissues, a magnetic resonance imaging (MRI) scan or ultrasound scan, which are more detailed scans.
Non Surgical Treatment
If you protect your injured plantar fascia appropriately the injured tissues will heal. Inflammed structures will settle when protected from additional damage, which can help you avoid long-standing degenerative changes. Plantar fasciitis may take from several weeks (through to many months) to heal while we await Mother Nature to form and mature the new scar tissue, which takes at least six weeks. During this time period you should be aiming to optimally remould your scar tissue to prevent a poorly formed scar that may become lumpy or potentially re-tear in the future. It is important to lengthen and orientate your healing scar tissue via massage, gentle stretches, and light active exercises. In most cases, your physiotherapist will identify stiff joints within your foot and ankle complex that they will need to loosen to help you avoid plantar fascia overstress.A sign that you may have a stiff ankle joint can be a limited range of ankle bend during a squat manoeuvre. Your physiotherapist will guide you.
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).