Overview
Pes planus is the scientific term that describes low arch or "flat" feet. As podiatric physicians, we are very interested not only in structure but also in function of the feet. While very few people have 20-20 vision, it is also true that very few people have perfect arch structure. High and low arch feet are just the two ends of the spectrum of foot structure. The more deviation from what is considered perfect, the worse the function becomes. We describe deviation from "the ideal" as imbalance in structure. It is the imbalance in structure that leads to abnormal function. Abnormal function causes pain and/or deformity. Deformity can manifest itself in a variety of foot problems such as bunions or hammertoes. Likewise, pain can manifest itself in a variety of ways such as heel pain ( plantar fasciitis or heel spur), corns or calluses, metatarsalgia or pain in the ball of the foot ( neuromas, stress fractures, or tendonitis), or even in pediatric problems. Invariably, we can treat most foot imbalance or biomechanical insufficiencies with orthotic therapy.
Causes
Arch pain is most often caused by plantar fasciitis, which can affect the heel, arch, or both. Plantar fasciitis treatment is the same, regardless of the location of foot pain (see above). For persistent plantar fasciitis, an injection with a mixture of a steroid and local anesthetic can be helpful. Fallen arches or flat feet occur when the arches of the feet flatten out (often when standing or walking), causing foot pain and other problems. Flat feet can be treated with shoe inserts (orthotics), shoe adjustments, rest/ice, using a walking cane or brace, or physical therapy. Occasionally, surgery is necessary.
Symptoms
The muscle imbalance around the foot and ankle gives rise to a typical pattern of deformity in addition to the high arch (known as cavus). The bone under the big toe (called the first metatarsal) can become very prominent and the toes can curl or clench like a fist (called claw toes). Excessive amount of weight may be placed on the ball and heel of the foot, which can lead to the ankle weakening and giving way (this is referred to as ankle instability) and soreness. Calluses and sometimes stress fractures may occur where the foot is exposed to extra friction or pressure, such as on the outer (or lateral) border of the foot.
Diagnosis
In people with flat feet, the instep of the foot comes in contact with the ground when standing. To diagnose the problem, the health care provider will ask you to stand on your toes. If an arch forms,the flat foot is called flexible. You will not need any more tests or treatment. If the arch does not form with toe-standing (called rigid flat feet), or if there is pain, other tests may be needed, including a CT scan to look at the bones in the foot. MRI scan to look at the tendons in the foot. X-ray of the foot.
Non Surgical Treatment
If you have arch pain, you need proper arch support. You can get arch support by purchasing custom shoe inserts that are made to support your feet. If you have flat feet or high arches, you can certainly benefit from arch support inserts. Take a look at your wet footprint; if you notice that your footprint is completely filled in, then you have flat feet. On the other hand, if there is a large crescent shape missing from your footprint, then you have high arches. Both of these conditions require proper support from a shoe insert. Foot Solutions You can also take care of your feet by avoiding high heels and flip-flops. If you must wear high heels, choose a heel that is two inches or less, and try to wear them only for short periods of time. Flip-flops provide very little support, so wear them only if you won?t be doing very much walking.
Surgical Treatment
In adults, the most common cause of collapse is due to the posterior tibial tendon tear. In such cases, the tendon must be repaired and a second tendon may be added to the posterior tibial tendon for strength and added support. If the foot is found to be very flat, bone realignment procedures or possible bone fusion procedures may be used to realign the foot. If the calf or Achilles tendon are found to be tight, they may be lengthened to allow better motion at the ankle and less arch strain. The forefoot may also be in a poor position and stabilization of the arch may be necessary to increase forefoot contact to the ground.
Prevention
People who run regularly should replace shoes every six months, more frequently if an avid runner. Avoid running or stepping on uneven surfaces. Try to be careful on rocky terrain or hills with loose gravel. Holes, tree stumps and roots are problems if you are trail running. If you have problems with the lower legs, a dirt road is softer than asphalt, which is softer than concrete. Try to pick a good surface if possible. However, if you're racing, be sure to train on the surface you'll eventually run on. Be careful running too many hills. Running uphill is a great workout, but make sure you gradually build this up to avoid injuries. Be careful when running downhill too fast, which can often lead to more injuries than running uphills. Prevent recurrent injuries. Athletes who have experienced ankle injuries previously may benefit from using a brace or tape to prevent recurrent ankle injuries.
Stretching Exercises
Achilles stretch. Stand with the ball of one foot on a stair. Reach for the step below with your heel until you feel a stretch in the arch of your foot. Hold this position for 15 to 30 seconds and then relax. Repeat 3 times. Balance and reach exercises. Stand next to a chair with your injured leg farther from the chair. The chair will provide support if you need it. Stand on the foot of your injured leg and bend your knee slightly. Try to raise the arch of this foot while keeping your big toe on the floor. Keep your foot in this position. With the hand that is farther away from the chair, reach forward in front of you by bending at the waist. Avoid bending your knee any more as you do this. Repeat this 15 times. To make the exercise more challenging, reach farther in front of you. Do 2 sets of 15. While keeping your arch raised, reach the hand that is farther away from the chair across your body toward the chair. The farther you reach, the more challenging the exercise. Do 2 sets of 15. Towel pickup. With your heel on the ground, pick up a towel with your toes. Release. Repeat 10 to 20 times. When this gets easy, add more resistance by placing a book or small weight on the towel. Resisted ankle plantar flexion. Sit with your injured leg stretched out in front of you. Loop the tubing around the ball of your foot. Hold the ends of the tubing with both hands. Gently press the ball of your foot down and point your toes, stretching the tubing. Return to the starting position. Do 2 sets of 15. Resisted ankle dorsiflexion. Tie a knot in one end of the elastic tubing and shut the knot in a door. Tie a loop in the other end of the tubing and put the foot on your injured side through the loop so that the tubing goes around the top of the foot. Sit facing the door with your injured leg straight out in front of you. Move away from the door until there is tension in the tubing. Keeping your leg straight, pull the top of your foot toward your body, stretching the tubing. Slowly return to the starting position. Do 2 sets of 15. Heel raise. Stand behind a chair or counter with both feet flat on the floor. Using the chair or counter as a support, rise up onto your toes and hold for 5 seconds. Then slowly lower yourself down without holding onto the support. (It's OK to keep holding onto the support if you need to.) When this exercise becomes less painful, try doing this exercise while you are standing on the injured leg only. Repeat 15 times. Do 2 sets of 15. Rest 30 seconds between sets.
Pes planus is the scientific term that describes low arch or "flat" feet. As podiatric physicians, we are very interested not only in structure but also in function of the feet. While very few people have 20-20 vision, it is also true that very few people have perfect arch structure. High and low arch feet are just the two ends of the spectrum of foot structure. The more deviation from what is considered perfect, the worse the function becomes. We describe deviation from "the ideal" as imbalance in structure. It is the imbalance in structure that leads to abnormal function. Abnormal function causes pain and/or deformity. Deformity can manifest itself in a variety of foot problems such as bunions or hammertoes. Likewise, pain can manifest itself in a variety of ways such as heel pain ( plantar fasciitis or heel spur), corns or calluses, metatarsalgia or pain in the ball of the foot ( neuromas, stress fractures, or tendonitis), or even in pediatric problems. Invariably, we can treat most foot imbalance or biomechanical insufficiencies with orthotic therapy.
Causes
Arch pain is most often caused by plantar fasciitis, which can affect the heel, arch, or both. Plantar fasciitis treatment is the same, regardless of the location of foot pain (see above). For persistent plantar fasciitis, an injection with a mixture of a steroid and local anesthetic can be helpful. Fallen arches or flat feet occur when the arches of the feet flatten out (often when standing or walking), causing foot pain and other problems. Flat feet can be treated with shoe inserts (orthotics), shoe adjustments, rest/ice, using a walking cane or brace, or physical therapy. Occasionally, surgery is necessary.
Symptoms
The muscle imbalance around the foot and ankle gives rise to a typical pattern of deformity in addition to the high arch (known as cavus). The bone under the big toe (called the first metatarsal) can become very prominent and the toes can curl or clench like a fist (called claw toes). Excessive amount of weight may be placed on the ball and heel of the foot, which can lead to the ankle weakening and giving way (this is referred to as ankle instability) and soreness. Calluses and sometimes stress fractures may occur where the foot is exposed to extra friction or pressure, such as on the outer (or lateral) border of the foot.
Diagnosis
In people with flat feet, the instep of the foot comes in contact with the ground when standing. To diagnose the problem, the health care provider will ask you to stand on your toes. If an arch forms,the flat foot is called flexible. You will not need any more tests or treatment. If the arch does not form with toe-standing (called rigid flat feet), or if there is pain, other tests may be needed, including a CT scan to look at the bones in the foot. MRI scan to look at the tendons in the foot. X-ray of the foot.
Non Surgical Treatment
If you have arch pain, you need proper arch support. You can get arch support by purchasing custom shoe inserts that are made to support your feet. If you have flat feet or high arches, you can certainly benefit from arch support inserts. Take a look at your wet footprint; if you notice that your footprint is completely filled in, then you have flat feet. On the other hand, if there is a large crescent shape missing from your footprint, then you have high arches. Both of these conditions require proper support from a shoe insert. Foot Solutions You can also take care of your feet by avoiding high heels and flip-flops. If you must wear high heels, choose a heel that is two inches or less, and try to wear them only for short periods of time. Flip-flops provide very little support, so wear them only if you won?t be doing very much walking.
Surgical Treatment
In adults, the most common cause of collapse is due to the posterior tibial tendon tear. In such cases, the tendon must be repaired and a second tendon may be added to the posterior tibial tendon for strength and added support. If the foot is found to be very flat, bone realignment procedures or possible bone fusion procedures may be used to realign the foot. If the calf or Achilles tendon are found to be tight, they may be lengthened to allow better motion at the ankle and less arch strain. The forefoot may also be in a poor position and stabilization of the arch may be necessary to increase forefoot contact to the ground.
Prevention
People who run regularly should replace shoes every six months, more frequently if an avid runner. Avoid running or stepping on uneven surfaces. Try to be careful on rocky terrain or hills with loose gravel. Holes, tree stumps and roots are problems if you are trail running. If you have problems with the lower legs, a dirt road is softer than asphalt, which is softer than concrete. Try to pick a good surface if possible. However, if you're racing, be sure to train on the surface you'll eventually run on. Be careful running too many hills. Running uphill is a great workout, but make sure you gradually build this up to avoid injuries. Be careful when running downhill too fast, which can often lead to more injuries than running uphills. Prevent recurrent injuries. Athletes who have experienced ankle injuries previously may benefit from using a brace or tape to prevent recurrent ankle injuries.
Stretching Exercises
Achilles stretch. Stand with the ball of one foot on a stair. Reach for the step below with your heel until you feel a stretch in the arch of your foot. Hold this position for 15 to 30 seconds and then relax. Repeat 3 times. Balance and reach exercises. Stand next to a chair with your injured leg farther from the chair. The chair will provide support if you need it. Stand on the foot of your injured leg and bend your knee slightly. Try to raise the arch of this foot while keeping your big toe on the floor. Keep your foot in this position. With the hand that is farther away from the chair, reach forward in front of you by bending at the waist. Avoid bending your knee any more as you do this. Repeat this 15 times. To make the exercise more challenging, reach farther in front of you. Do 2 sets of 15. While keeping your arch raised, reach the hand that is farther away from the chair across your body toward the chair. The farther you reach, the more challenging the exercise. Do 2 sets of 15. Towel pickup. With your heel on the ground, pick up a towel with your toes. Release. Repeat 10 to 20 times. When this gets easy, add more resistance by placing a book or small weight on the towel. Resisted ankle plantar flexion. Sit with your injured leg stretched out in front of you. Loop the tubing around the ball of your foot. Hold the ends of the tubing with both hands. Gently press the ball of your foot down and point your toes, stretching the tubing. Return to the starting position. Do 2 sets of 15. Resisted ankle dorsiflexion. Tie a knot in one end of the elastic tubing and shut the knot in a door. Tie a loop in the other end of the tubing and put the foot on your injured side through the loop so that the tubing goes around the top of the foot. Sit facing the door with your injured leg straight out in front of you. Move away from the door until there is tension in the tubing. Keeping your leg straight, pull the top of your foot toward your body, stretching the tubing. Slowly return to the starting position. Do 2 sets of 15. Heel raise. Stand behind a chair or counter with both feet flat on the floor. Using the chair or counter as a support, rise up onto your toes and hold for 5 seconds. Then slowly lower yourself down without holding onto the support. (It's OK to keep holding onto the support if you need to.) When this exercise becomes less painful, try doing this exercise while you are standing on the injured leg only. Repeat 15 times. Do 2 sets of 15. Rest 30 seconds between sets.