Overview
You know when we walk in the sand on the beach? Well, that?s how nature meant us to walk! You will notice how the sand forms a complete support under the foot. Unfortunately, instead of soft natural surfaces, we walk mainly on hard surfaces like pavements and floors. These hard surfaces cause the foot to roll inwards and the arches to flatten to gain ground contact. This condition is called ?over-pronation? and it affects an estimated 70% of the population. Over-pronation can lead to various foot problems such as heel pain and ball of foot pain. Because our feet are the foundation of our body, poorly aligned feet may also cause problems in other parts of the body, resulting in shin pain, aching legs, knee pain, even lower back pain.
Causes
Overpronation often occurs in people with flat feet, whose plantar fascia ligament is too flexible or too long, and therefore unable to properly support the longitudinal arch of the foot. People tend to inherit the foot structure that leads to overpronation. In a normal foot the bones are arranged so that two arches are formed, the longitudinal and the transverse. Ligaments hold all the bones in their correct positions, and tendons attach muscles to bones. If the bones are held together too loosely, they will tend to move inwards as this is the easiest direction for them to go. Over time the soft tissue structures will adjust to the misalignment and the foot will become permanently over-flexible, with a flat arch.
Symptoms
Not all foot injuries affecting runners are necessarily down to a particular running gait; it is rarely that simple to diagnose how a foot problem developed . Simply being an overpronator does not mean that a foot injury has been caused by the running gait and it could be due to a number of factors. However mild to severe overpronators tend to be at a higher risk of developing musculoskeletal problems due to the increased stresses and strains which are placed on the body when the foot does not move in an optimum manner. The following injuries are frequently due to overpronation of the feet. Tarsal tunnel syndrome. Shin splints. Anterior compartment syndrome. Plantar fasciitis. Achilles tendonitis. Bunions. Sesamoiditis. Stress fractures. Back and hip pain. Ankle pain.
Diagnosis
Bunions, calluses and crooked toes may indicate alignment problems. So, it is important to ascertain the condition of a client's toes. Check the big toe to determine if the first joint of the toe is swollen, has a callus or bunion, and/or looks as though it abducts (i.e., hallux valgus) rather than pointing straight ahead. Also, look to see if the lesser toes seem to "curl up" (i.e., the person has hammer or claw toes). This may be indicative of damage to, or inflexibility of the plantar fascia caused by excessive flattening of the foot.
Non Surgical Treatment
Your podiatrist will look at your current footwear to ensure that it is both well-fitted and possessed of adequate cushioning to protect your feet. Firm heel support is advised for over-pronators, and a good fit is important to ensure that the foot as a whole is well supported as instability can exacerbate the existing problems caused by over-pronation.
Surgical Treatment
Calcaneal "Slide" (Sliding Calcaneal Osteotomy) A wedge is cut into the heel bone (calcaneus) and a fixation device (screws, plate) is used to hold the bone in its new position. This is an aggressive option with a prolonged period of non-weightbearing, long recovery times and many potential complications. However, it can and has provided for successful patient outcomes.
You know when we walk in the sand on the beach? Well, that?s how nature meant us to walk! You will notice how the sand forms a complete support under the foot. Unfortunately, instead of soft natural surfaces, we walk mainly on hard surfaces like pavements and floors. These hard surfaces cause the foot to roll inwards and the arches to flatten to gain ground contact. This condition is called ?over-pronation? and it affects an estimated 70% of the population. Over-pronation can lead to various foot problems such as heel pain and ball of foot pain. Because our feet are the foundation of our body, poorly aligned feet may also cause problems in other parts of the body, resulting in shin pain, aching legs, knee pain, even lower back pain.
Causes
Overpronation often occurs in people with flat feet, whose plantar fascia ligament is too flexible or too long, and therefore unable to properly support the longitudinal arch of the foot. People tend to inherit the foot structure that leads to overpronation. In a normal foot the bones are arranged so that two arches are formed, the longitudinal and the transverse. Ligaments hold all the bones in their correct positions, and tendons attach muscles to bones. If the bones are held together too loosely, they will tend to move inwards as this is the easiest direction for them to go. Over time the soft tissue structures will adjust to the misalignment and the foot will become permanently over-flexible, with a flat arch.
Symptoms
Not all foot injuries affecting runners are necessarily down to a particular running gait; it is rarely that simple to diagnose how a foot problem developed . Simply being an overpronator does not mean that a foot injury has been caused by the running gait and it could be due to a number of factors. However mild to severe overpronators tend to be at a higher risk of developing musculoskeletal problems due to the increased stresses and strains which are placed on the body when the foot does not move in an optimum manner. The following injuries are frequently due to overpronation of the feet. Tarsal tunnel syndrome. Shin splints. Anterior compartment syndrome. Plantar fasciitis. Achilles tendonitis. Bunions. Sesamoiditis. Stress fractures. Back and hip pain. Ankle pain.
Diagnosis
Bunions, calluses and crooked toes may indicate alignment problems. So, it is important to ascertain the condition of a client's toes. Check the big toe to determine if the first joint of the toe is swollen, has a callus or bunion, and/or looks as though it abducts (i.e., hallux valgus) rather than pointing straight ahead. Also, look to see if the lesser toes seem to "curl up" (i.e., the person has hammer or claw toes). This may be indicative of damage to, or inflexibility of the plantar fascia caused by excessive flattening of the foot.
Non Surgical Treatment
Your podiatrist will look at your current footwear to ensure that it is both well-fitted and possessed of adequate cushioning to protect your feet. Firm heel support is advised for over-pronators, and a good fit is important to ensure that the foot as a whole is well supported as instability can exacerbate the existing problems caused by over-pronation.
Surgical Treatment
Calcaneal "Slide" (Sliding Calcaneal Osteotomy) A wedge is cut into the heel bone (calcaneus) and a fixation device (screws, plate) is used to hold the bone in its new position. This is an aggressive option with a prolonged period of non-weightbearing, long recovery times and many potential complications. However, it can and has provided for successful patient outcomes.