Biomechanics in Podiatry

Podiatry is a branch of medicine that deals with the study, diagnosis, and treatment of foot and ankle conditions. There are various subdivisions in podiatry; biomechanics is one of them. Biomechanics is the way in which the bones, muscles, and joints of the feet and lower limb interact with each other.

Our feet play crucial roles in the way we move, and it is rare to have feet that are completely symmetrical. Common biomechanical issues include high or low arches or uneven leg heights. Excessive pronation often leads to fallen arches, or flat feet, and is a common cause of running injuries. People whose feet are over-pronated tend to have flexible and unstable feet. Pain is usually experienced during walking and running.

At times, people may be able to adapt to these abnormalities without any difficulties, but in other cases, these issues can cause a great deal of pain. This pain occurs because the joints, muscles, ligaments, and tendons are put under an excess amount of stress during movement. Common symptoms of biomechanical problems stemming from the feet include hip pain, knee pain, leg cramps, ankle pain, lower back pain, weak ankles, tripping, heel pain, Achilles pain, and shin splints.

Many biomechanical issues can be treated with orthotics. Orthotics are shoe insoles that are used to help control the way the foot operates.  They can provide relief from foot pain, heel pain, and knee pain. Depending on your specific case, you may need to purchase over-the-counter orthotics or custom orthotics to fit your feet. Your podiatrist will be able to prescribe the perfect orthotic for your feet to help you walk around with ease.

Gait is defined as the way we move our bodies from one point to another. This is usually done by either walking or running. Gait analysis is a method used to assess the way we walk or run to highlight biomechanical abnormalities. Gait analyses are a great way to take a detailed look at how you walk and how your foot moves while you walk. An examination of the feet will help your podiatrist understand why you are suffering pain in other parts of your body.

Athlete's Foot

Athlete’s foot is an extremely contagious infection caused by a fungus that results in itching, burning, dry, and flaking feet. The fungus that causes athlete’s foot is known as tinea pedis and thrives in moist, dark areas such as shower floors, gyms, socks and shoes, commons areas, public changing areas, bathrooms, dormitory style houses, locker rooms, and public swimming pools. Athlete’s foot is difficult to treat as well because of the highly contagious and recurrent nature of the fungus.

Tinea is the same fungus that causes ringworm, and is spread by direct contact with an infected body part, contaminated clothing, or by touching other objects and body parts that have been exposed to the fungus. Because the feet are an ideal place for tinea to grow and spread, this is the most commonly affected area.  It is, however, known to grow in other places. The term athlete’s foot describes tinea that grows strictly on the feet.

The most commonly infected body parts are the hands, groin, and scalp, as well as the feet. Around 70% of the population suffer from tinea infections at some point in their lives, however not all of these cases are athlete’s foot. Just like any other ailment, some people are more likely to get it than others, such as people with a history of tinea infections or other skin infections, both recurring and non-recurring ones. The extent to which a person experiences regrowth and recurrent tinea infections varies from person to person.

Sometimes people will not even know that they are infected with tinea or that they have athlete’s foot because of a lack of symptoms. However, most experience mild to moderate flaking, itching, redness, and burning. However, some of the more severe symptoms include cracking and bleeding skin, intense itching and burning, pain while walking or standing, and even blistering.

Because of the recurring nature of the tinea fungus and the athlete’s foot it causes, the best way to treat this condition is with prevention. You can take some preventative measures such as wearing flip flops or sandals in locker rooms and public showers to reduce contact with the floor. It also helps to keep clean, dry feet while allowing them to breathe. Using powders to keep your feet dry is a good idea, as well as keeping your feet exposed to light and cool air, to prevent the growth of tinea. If you do happen to get athlete’s foot, opt for using topical medicated creams, ointments or sprays. These treatments help eliminate and prevent it from coming back.

How to Care for Diabetic Foot

Millions of people are affected by diabetes each year. Diabetes damages blood vessels in all parts of the body, especially the feet. The legs and feet may develop slow blood flow, which causes neuropathy, or nerve damage. Once a diabetic patient develops neuropathy, it is important that the feet are well taken care of. Otherwise, the lower limbs may have to be amputated. This only happens in drastic cases, but it shows how seriously diabetic foot care should be taken.

It is very important to always wash and dry the feet thoroughly, especially in between the toes, if you’re a diabetic. Secondly, examining your feet and toes for redness or sores must be done, even if you do not feel pain.  You may also want to examine your feet from the bottom. Try to avoid wearing colored socks to prevent infections that may occur from the dye. Well-fitting socks are also highly recommended.

A diabetic’s physician should always monitor their blood levels to test how well blood sugars are being maintained. In addition to giving advice about everyday eating habits and foot care, a physician may prescribe medicine to help with the diabetic patient’s neuropathy. It is also advised to see a podiatrist if experiencing any feet conditions. Toenails may also need to be taken care of by a podiatrist. This prevents patients from cutting too deeply around their cuticles, which can lead to infection.

A person can take care of their feet at home by following the instructions of their physician. Using creams on one’s feet is also an effective way to heal dryness. Proceed with caution when using tools to remove calluses, as severe diabetics may not be able to feel pain on their feet. If any complications arise do not hesitate to contact a podiatrist.

On a daily basis, diabetic feet must be checked. If you are ever concerned about something, contact your health care professional. You never want to wait until a wound becomes too severe to treat. If left untreated, gangrene may develop. Gangrene is a serious infection that can lead to sepsis or amputation. It is also important for diabetics to be on the lookout for ulcers. Ulcers are sores that develop from tissue loss on the skin. They can be quite painful and require intensive treatment. Early treatment and everyday inspection are imperative to staying healthy.

Falls Prevention

Elderly Americans are very susceptible to falls as they get older. Everyone experiences decreases in flexibility, balance, strength, and the senses as they age. This correlates to some eye-opening statistics. 1 in 4 Americans aged 65 and older fall each year. An elderly American is being treated for a fall in an emergency room every 11 seconds. In light of these striking statistics, one can see the importance of taking steps to prevent falls.

Finding an exercise program for the elderly is an excellent way to reduce the likelihood of falls. Look for an exercise program that improves strength and balance. Elderly people who live a more sedentary lifestyle, with little physical activity, are at an increased risk of falling. Wearing well-fitted footwear that provides good foot support and cushion will help prevent falls from poorly fitted shoes. Talking to a podiatrist about your susceptibility to falls and about inspecting your prescriptions will help to avoid any medication that could make falls more likely. Due to a decline in the senses among the elderly, having your eyes and hearing checked is recommended.

Around half of all falls occur in the household. Removing tripping hazards in the home and making it more accommodating to older persons can significantly reduce falls. Some notable household changes include increasing lighting around the house, installing grab bars in the shower and bathroom, and making sure the floor is clear of clutter. Other smart options include installing a shower chair, using rubber-bottomed rugs, and placing railings on both sides of stairwells.  

Finally, discuss with a doctor and your family about your fear of falling. This will help to increase awareness among the population on the need for fall prevention. A lack of awareness on the matter, and a downplaying of importance are what increase the risks of falling. Following these tips can help to reduce the risk for yourself and your loved ones.

Foot Pain

The feet, being the foundation of the body, carry all of the body’s weight and are therefore prone to experiencing pain and discomfort. If you are experiencing foot pain, it is important to determine where in the foot you are experiencing this pain to help discover the cause of it. While pain can be experienced virtually anywhere in the foot, the most common sites of foot pain are in the heel and ankle.   

Heel pain can be due to a multitude of conditions including plantar fasciitis, Achilles tendinitis, and heel spurs. Pain experienced in the ankle can be a sign of an ankle sprain, arthritis, gout, ankle instability, ankle fracture, or nerve compression. In more serious cases, pain in the foot can be a sign of improper alignment or an infection.

Foot pain can be accompanied by symptoms including redness, swelling, stiffness and warmth in the affected area. Whether the pain can be described as sharp or dull depends on the foot condition behind it. It is important to visit your local podiatrist if your foot pain and its accompanying symptoms persist and do not improve over time.

Depending on the location and condition of your foot pain, your podiatrist may prescribe certain treatments. These treatments can include but are not limited to prescription or over-the-counter drugs and medications, certain therapies, cortisone injections, or surgery.

If you are experiencing persistent foot pain, it is important to consult with your foot and ankle doctor to determine the cause and location. He or she will then prescribe the best treatment for you. While milder cases of foot pain may respond well to rest and at-home treatments, more serious cases may take some time to fully recover.

Rare Foot Conditions

A podiatrist will be able to address a variety of rare foot conditions, particularly the ones that affect children. The most common are Kohler’s disease, Maffucci syndrome, and Freiberg’s disease. They can be properly diagnosed by having an X-ray taken, but in more serious cases an MRI may be needed. Kohler’s disease generally affects younger boys and bone deterioration may result from an interruption of blood supply. Children who have Kohler’s disease may find relief when the affected foot is rested, and a special boot is worn. Benign growths in the long bones of a child’s foot may lead to the development of bone lesions, and this is known as Maffucci syndrome. People who have this condition find mild relief when custom-made orthotics are worn. Freiberg’s disease targets the ball of the foot and can typically affect pre-teen and teenage girls. The metatarsal bone becomes deteriorated and flattened, and common symptoms include swelling and stiffness. A cast is often necessary to wear with this disease as it can help to reduce existing pain. Erythromelalgia is a rare foot condition, and its cause is unknown. Symptoms of this disease can include intense burning pain and the feet may appear red or feel warm. Relief may be found when the affected foot is immersed in ice water. It can also be beneficial to elevate the foot frequently. If your child complains of foot pain, it is strongly suggested that you consult with a podiatrist who can diagnose and treat rare foot conditions. 

Various Causes of Ankle Pain

Ankles are joints that connect bones in the feet with bones in the lower leg. They are comprised of bones, ligaments, muscles, tendons, blood vessels, and nerves. The ankle joint allows the foot to move side-to-side, as well as up-and-down.

Ankle pain can be caused by a variety of conditions, but is most commonly due to soft tissue injuries such as ankle sprains and strains. 

An ankle sprain occurs when one or more of the strong ligaments that support and stabilize the ankle become overly stretched or even torn if the ankle rolls, turns, or twists awkwardly. Depending on the grade of sprain (mild-moderate-severe), there will be varying degrees of pain, swelling, and restricted range of motion, along with tenderness, bruising, and ankle instability. There may even be an audible popping noise at the moment of injury.

Ankle strains can sometimes produce similar symptoms of pain, swelling, and loss of motion, however, they are due to overly stretched muscles and tendons—not ligaments. Ankle strains may also cause muscle cramps in the feet, calves and shins.

Ankle fractures are another common source of ankle pain and occur one or more of the three bones in the ankle become fractured (broken). These breaks can be stress fractures (due to repetitive stress) or traumatic fractures (due to an acute injury). Depending on where and how severe the fracture is, symptoms can include pain and swelling that can sometimes spread up to the knee, bruising or discoloration, and an inability to bear weight. A visible deformity or exposed bone may occur in severe fractures.

Various forms of arthritis may also cause ankle pain. Rheumatoid arthritis (RA) causes the immune system to attack healthy joints, like the ankle joint, by mistake, causing stiffness and swelling in both ankles. Osteoarthritis occurs when cartilage covering the ends of bones wears down, causing the bones to rub against each other. This results in pain, stiffness, and reduced range of motion in the ankle. Gout is a form of arthritis where excess amounts of uric acid in the bloodstream crystallize and build up on joints, causing severe pain and swelling. Reactive arthritis causes joint pain and swelling in the ankle in response to an infection in another part of the body.

Other forms of ankle pain include bursitis (an inflammation of a cushioning bursa sac between tendons and bone), scleroderma (a thickening of connective tissues), chronic ankle instability (caused by improperly healed ankle sprains), Achilles tendon injuriesflat feet, or an infection in the ankle.

Stress Fractures of the Foot and Ankle

Our bones are important aspects of our body and they are constantly changing. The heavier the workload for a bone, the more likely it is that calcium will be placed in it. When a bone isn’t used often, there won’t be much calcium within it. When stress from repetitive loads prevent the bone from being able to repair itself, cracks will start to form. Stress fractures are defined as cracks in a bone that result from repetitive force, such as overuse.

The most common cause of stress fractures is a sudden increase in intensity and duration of physical activity. For example, if you begin to run long distances without working your way into doing so, you will be more likely to develop a stress fracture.

Common symptoms of stress fractures are pain and swelling near the weight bearing area on the injured bone. When initial x-rays are performed, it is possible that the fracture will not show up. However, once the stress on the area continues, the damage will increase, and the fracture will be severe enough to show up on an x-ray. Certain parts of the foot are more likely to develop stress fractures than others. Areas that typically have these fractures are: the metatarsals, the navicular bone, the calcaneus, tibia, and fibula.

Since women are at an increased risk of developing osteoporosis, they are twice as likely as men to sustain a stress fracture. Additionally, old age causes a decrease in bone mineral density which is why elderly people are also likely to develop these fractures.

It is important for you to be professionally diagnosed by a podiatrist if you suspect you have a stress fracture, because there are other injuries that can easily be mistaken for a fracture.  Sprains, strains, shin splints, plantar fasciitis, and Morton’s neuroma can all easily be mistaken for stress fractures in the foot. Your podiatrist will likely ask you a series of questions to determine what type of pain you are experiencing. These questions will help your doctor identify whether you have a stress fracture.

The best method of treatment for a stress fracture is rest. Additionally, a walking boot, cast, or crutches, will help rest the area that is injured. The typical healing time for stress fractures is 4-12 weeks, however this depends on which bone is involved.

Ankle Sprains

Although ankle sprains may not be as serious as a broken ankle, they should be given immediate attention and care. An ankle sprain can lead to a significant amount of pain, as well as limited mobility. They are often characterized by the swelling and discoloration of the skin. This occurs when the ligaments are stretched beyond their limits.

The simple act of walking can sometimes cause a sprain, which makes ankle sprains a very common injury that can happen to anyone. They occur when the ankle twists in an awkward way or rolls over itself, causing a pop or snap in the tendons around the ankle. Some people are more at risk than others. These include athletes who continually push their bodies to the limits and also people who have previously suffered accidents to the feet, ankles, or lower legs.

Most of the time, an ankle sprain is not severe enough for hospital attention. There are many at-home treatment options available, including propping the leg up above your head to reduce blood flow and inflammation, applying ice packs to the affected area as needed, taking over-the-counter pain relievers and anti-inflammatory medication, using an ACE bandage to wrap and support the injured ankle, and most importantly, remaining off your feet until the ankle has fully healed.

Despite this, an ankle sprain can turn into a severe injury that might require hospitalization. If the ankle ligaments or muscles are damaged from a tear or rip, that is one sign that the sprain is severe enough for hospital attention and possibly for surgery. Even after the surgery, the recovery process can be long. You may need to have rehabilitation sessions administered by your podiatrist to get your ankle back to full health.

The severity of your sprain might become apparent if you are unable to stand or walk, consistent pain occurs over a prolonged period of time, swelling is much more severe than initially present, or if you start to experience tingling or numbness. These signs may indicate that your ankle sprain might actually be a broken ankle, an injury that requires immediate medical attention.

Although they are not completely avoidable, ankle sprains can be curbed with some preventative treatment measures. These include wearing appropriate-fitting shoes that not only provide a comfortable fit, but also ankle support. It is also recommended to stretch before doing any kind of physical activity, as this will help lower your body’s chance for an injury.

Rheumatoid Arthritis in the Feet

Although rheumatoid arthritis attacks multiple bones and joints throughout the entire body, ninety percent of people who actually develop this condition usually do so in the foot or ankle area. Those who develop this kind of arthritis in the feet usually develop symptoms around the toes and forefeet first, before anywhere else. Rheumatoid arthritis appears to have a genetic component. If it runs in the family, then you will be more likely to develop it as well.

Rheumatoid arthritis is an autoimmune disorder in which the body’s own immune system attacks the lining of the membranes surrounding the joints. This causes inflammation of the membrane lining, and the gradual destruction of the joint’s cartilage and even bone.

Some of the most common symptoms that are associated with RA include pain and swelling of the feet. Stiffness in the feet is also another common symptom that people experience. Those who have RA in the feet usually feel the pain in the ball or sole of their feet. This can get to be very painful at times. A person's joints can even shift and become deformed after a period of time.

In order to properly diagnose RA in the feet it is usually necessary for a doctor or podiatrist to evaluate the area. Your doctor will also question you about your medical history, occupation, etc., to determine whether anything in your lifestyle may have triggered the condition. There are a number of tests that may be performed to help diagnose RA, such as a rheumatoid factor test. There is, however, no one single test that will tell you for sure if you have RA. There are different X-rays that can be taken as well to determine if a person has RA in their feet.

There is a range of treatment options for rheumatoid arthritis. Treatment of RA is usually a lifelong process that includes a variety of methods of treatment and therapy. Your doctor can prescribe special shoes that should help with arch support as well as heel support. A physical therapist can help those with this condition learn exercises which will keep their joints flexible. Surgery may be needed to correct some of the issues with the feet, such as bunions, and hammertoes. Fusion is usually the most successful surgical option for rheumatoid arthritis. However, people need to keep in mind that there are some risks associated with these surgeries.

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