Do I Have Over-Pronation Of The Foot

Overview

Overpronation is the most common abnormality found in the foot, and for this reason, is the most studied. The term that most people attribute to overpronation is ?flat feet.? Pronation is the rolling in of the foot and the collapse of the arch. Every person pronates to some extent and this is a necessary moment in the normal walking cycle as it allows the forefoot to make complete contact with the ground. A foot that overpronates acts like a loose bag of bones during the walking cycle. This makes this type of foot very flexible but inefficient. The foot has to work much harder to propel the body, fatiguing easily and placing mechanical stresses on the lower body. We like to use the analogy of digging a hole in the dirt. Overpronating feet are like using a broom to dig the hole. It won?t break down quickly, but you will be digging for a very long time, or until eventually wear and tear will take effect. Wouldn?t you rather have a shovel to work with. This is in essence what an orthotic can do for your feet. This is why orthotics have become an evidence based treatment for so many foot ailments, as they can effectively manage overpronation.Overpronation is when a person pronates too much and for too long. This places excess stress on the tendons and ligaments in the foot and ankle.Pronation

Causes

Excess stress on the inner surface of the foot can cause injury and pain in the foot and ankle. Repeated rotational forces through the shin, knee, thigh and pelvis also place additional strain on the muscles, tendons and ligaments of the lower leg.

Symptoms

Overpronation can lead to injuries and pain in the foot, ankle, knee, or hip. Overpronation puts extra stress on all the bones in the feet. The repeated stress on the knees, shins, thighs, and pelvis puts additional stress on the muscles, tendons, and ligaments of the lower leg. This can put the knee, hip, and back out of alignment, and it can become very painful.

Diagnosis

One of the easiest ways to determine if you overpronate is to look at the bottom of your shoes. Overpronation causes disproportionate wear on the inner side of the shoe. Another way to tell if you might overpronate is to have someone look at the back of your legs and feet, while you are standing. The Achilles tendon runs from the calf muscle to the heel bone, and is visible at the back of the ankle. Normally it runs in a straight line down to the heel. An indication of overpronation is if the tendon is angled to the outside of the foot, and the bone on the inner ankle appears to be more prominent than the outer anklebone. There might also be a bulge visible on the inside of the foot when standing normally. A third home diagnostic test is called the ?wet test?. Wet your foot and stand on a surface that will show an imprint, such as construction paper, or a sidewalk. You overpronate if the imprint shows a complete impression of your foot (as opposed to there being a space where your arch did not touch the ground).Over Pronation

Non Surgical Treatment

Adequate footwear can often help with conditions related to flat feet and high arches. Certified Pedorthists recommend selecting shoes featuring heel counters that make the heel of the shoe stronger to help resist or reduce excessive rearfoot motions. The heel counter is the hard piece in the back of the shoe that controls the foot?s motion from side-to-side. You can quickly test the effectiveness of a shoe?s heel counter by placing the shoe in the palm of your hand and putting your thumb in the mid-portion of the heel, trying to bend the back of the shoe. A heel counter that does not bend very much will provide superior motion control. Appropriate midsole density, the firmer the density, the more it will resist motion (important for a foot that overpronates or is pes planus), and the softer the density, the more it will shock absorb (important for a cavus foot with poor shock absorption) Wide base of support through the midfoot, to provide more support under a foot that is overpronated or the middle of the foot is collapsed inward.

Surgical Treatment

Subtalar Arthroereisis. Primary benefit is that yje surgery is minimally invasive and fully reversible. the primary risk is a high chance of device displacement, generally not tolerated in adults.

An implant is pushed into the foot to block the excessive motion of the ankle bone. Generally only used in pediatric patients and in combination with other procedures, such as tendon lengthening. Reported removal rates vary from 38% – 100%, depending on manufacturer.

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What Are The Causes Of Severs Disease?

Overview

Sever’s disease or Calcaneal apophysitis is a condition that affects children between the ages of 10 and 13 years. It is characterized by pain in one or both heels with walking. During this phase of life, growth of the bone is taking place at a faster rate than the tendons. Hence there is a relative shortening of the heel-cord compared to the leg bones. As a result, the tension the heel-cord applies to the heel bone at its insertion is very great. Moreover, the heel cord is attached to a portion of the calcaneus (heel bone) that is still immature, consisting of a mixture of bone and growing cartilage, called the calcaneal apophysis, which is prone to injury. Compounding to this is the fact that all these changes are happening in a very active child, prone to overuse. The end result is therefore an overuse syndrome of injury and inflammation at the heel where the heel cord (Achilles Tendonitis) inserts into the heel bone (Calcaneal apophysitis).

Causes

The large calf muscles attach to the heel via a large tendon called the Achilles tendon (See image below). The function of this tendon is to transmit forces produced by the calf muscles to the heel bone. In children, the portion of the heel bone into which the Achilles tendon inserts is separated from the bulk of the heel bone by a growth plate. This growth plate enables bone growth to occur. However, it also represents a site of weakness in the bone. Forcible and repeated contraction of the calf muscles can injure the growth plate. This commonly occurs during a period of rapid growth where the muscles and tendons become tighter as the bones grow. This leads to increased pulling of the calf muscles and Achilles tendon on the heel bone and growth plate.

Symptoms

A few signs and symptoms point to Sever?s disease, which may affect one or both heels. These include Pain at the heel or around the Achilles tendon, Heel pain during physical exercise, especially activities that require running or jumping, Worsening of pain after exercise, A tender swelling or bulge on the heel that is sore to touch, Calf muscle stiffness first thing in the morning, Limping, A tendency to tiptoe.

Diagnosis

Sever’s disease is diagnosed based on a doctor?s physical examination of the lower leg, ankle, and foot. If the diagnosis is in question, the doctor may order X-rays or an MRI to determine if there are other injuries that may be causing the heel pain.

Non Surgical Treatment

A physiotherapist will assess your pain, presentation and biomechanics. They can then treat your sever?s disease with hands on techniques which may include massage, manual therapy and taping. Your physiotherapist can then provide advice on what you can do at home to further progress your treatment, this may include stretching, strengthening and activity modification. In some cases orthotic prescription may be of benefit.