Your foot is made up of 26 bones, 33 joints, and more than 100 tendons. The heel is the largest bone in your foot. If you overuse or injure your heel, you may experience heel pain. This can range from mild to disabling. In many cases, if you have heel pain, you will need a doctor to diagnose the cause.
Plantar fasciitis can come from a number of underlying causes. Finding the precise reason for the heel pain is sometimes difficult. As you can imagine, when the foot is on the ground a tremendous amount of force (the full weight of the body) is concentrated on the plantar fascia. This force stretches the plantar fascia as the arch of the foot tries to flatten from the weight of your body. This is just how the string on a bow is stretched by the force of the bow trying to straighten. This leads to stress on the plantar fascia where it attaches to the heel bone. Small tears of the fascia can result. These tears are normally repaired by the body. As this process of injury and repair repeats itself over and over again, a bone spur (a pointed outgrowth of the bone) sometimes forms as the body's response to try to firmly attach the fascia to the heelbone. This appears on an X-ray of the foot as a heel spur. Bone spurs occur along with plantar fasciitis but they are not the cause of the problem. As we age, the very important fat pad that makes up the fleshy portion of the heel becomes thinner and degenerates (starts to break down). This can lead to inadequate padding on the heel. With less of a protective pad on the heel, there is a reduced amount of shock absorption. These are additional factors that might lead to plantar fasciitis. Some physicians feel that the small nerves that travel under the plantar fascia on their way to the forefoot become irritated and may contribute to the pain. But some studies have been able to show that pain from compression of the nerve is different from plantar fasciitis pain. In many cases, the actual source of the painful heel may not be defined clearly. Other factors that may contribute to the development of plantar fasciitis include obesity, trauma, weak plantar flexor muscles, excessive foot pronation (flat foot) or other alignment problems in the foot and or ankle, and poor footwear.
Plantar fasciitis is a condition of irritation to the plantar fascia, the thick ligament on the bottom of your foot. It classically causes pain and stiffness on the bottom of your heel and feels worse in the morning with the first steps out of bed and also in the beginning of an activity after a period of rest. For instance, after driving a car, people feel pain when they first get out, or runners will feel discomfort for the first few minutes of their run. This occurs because the plantar fascia is not well supplied by blood, which makes this condition slow in healing, and a certain amount of activity is needed to get the area to warm up. Plantar fasciitis can occur for various reasons: use of improper, non-supportive shoes; over-training in sports; lack of flexibility; weight gain; prolonged standing; and, interestingly, prolonged bed rest.
A podiatrist (doctor who specializes in the evaluation and treatment of foot diseases) will carry out a physical examination, and ask pertinent questions about the pain. The doctor will also ask the patient how much walking and standing the patient does, what type of footwear is worn, and details of the his/her medical history. Often this is enough to make a diagnosis. Sometimes further diagnostic tests are needed, such as blood tests and imaging scans.
Non Surgical Treatment
Once diagnosed, treatment for plantar fasciitis may include one or more of the following: advice on footwear, in particular use of arch-supportive footwear; avoid walking barefoot; stretching exercises, shoe modifications such as heel pads, taping and strapping, anti-inflammatories and orthotic devices to correct abnormal foot mechanics. Injection therapy with corticosteroids is only advisable if all the conservative treatment methods mentioned above have been exhausted due to undesired effects implicated with steroid infusion in the heels.
Surgery is a last resort in the treatment of heel pain. Physicians have developed many procedures in the last 100 years to try to cure heel pain. Most procedures that are commonly used today focus on several areas, remove the bone spur (if one is present), release the plantar fascia (plantar fasciotomy), release pressure on the small nerves in the area. Usually the procedure is done through a small incision on the inside edge of the foot, although some surgeons now perform this type of surgery using an endoscope. An endoscope is a tiny TV camera that can be inserted into a joint or under the skin to allow the surgeon to see the structures involved in the surgery. By using the endoscope, a surgeon can complete the surgery with a smaller incision and presumably less damage to normal tissues. It is unclear whether an endoscopic procedure for this condition is better than the traditional small incision. Surgery usually involves identifying the area where the plantar fascia attaches to the heel and releasing the fascia partially from the bone. If a small spur is present this is removed. The small nerves that travel under the plantar fascia are identified and released from anything that seems to be causing pressure on the nerves. This surgery can usually be done on an outpatient basis. This means you can leave the hospital the same day.
Before you get out of bed in the morning, and then periodically throughout the day, do the following exercises to increase flexibility and ease pain. Slowly flex your foot and toes to stretch the tissue on the bottom of your sore foot. Hold the stretch for 10 counts. Relax and repeat. Do gentle ankle rolls to keep the tissues around the ankle and on the back of the heel flexible. Sit on the edge of your bed and roll your foot back and forth over a tennis ball.