(redirected from Flat feet)
Also found in: Dictionary, Thesaurus, Idioms, Encyclopedia, Wikipedia.


a condition in which one or more arches of the foot have flattened out; called also pes planus, pes valgus, platypodia, and tarsoptosis.

pes pla·'nus

a condition in which the longitudinal arch is broken down, the entire sole touching the ground.
Synonym(s): flatfoot, talipes planus


1. pl. flat·feet (-fēt′) A condition in which the arch of the foot is abnormally flattened down so that the entire sole makes contact with the ground.
2. pl. flat·foots
a. Informal A person with flat feet.
b. Slang A police officer.
intr.v. flat·footed, flat·footing, flat·foots
To walk in a flat-footed manner: "He flatfooted along, twirling his club" (James T. Farrell).

tal·i·pes pla·nus

(tal'i-pēz plā'nŭs)
A condition in which the longitudinal arch is broken down, the entire sole touching the ground.
Synonym(s): flatfoot, pes planus.


Enlarge picture
Abnormal flatness of the sole and the arch of the foot. This condition may exist without causing symptoms or interfering with normal function of the foot. The inner longitudinal and anterior transverse metatarsal arches may be depressed. This condition may be acute, subacute, or chronic. Synonym: pes planus; splayfoot See: illustration

spasmodic flatfoot

Flatfoot in which the foot is held everted by spasmodic contraction of the peroneal muscle.

Patient discussion about flatfoot

Q. Can flat feet be repaired by surgery? I have flat feet and I’m looking for all sorts of treatments for it- I heard there is a surgery for it- is it helpful?

A. As far as I know- they don’t treat flat feet that are asymptomatic. So first of all check if it bothers you. secondly there are 2 kinds of flat feet- rigid and flexible. There are different and treated differently. Not always a surgery (which is very painful and costly) is needed– I went to a Rolf method therapist by the advice of my orthopedic and it’s much better now. Ask an orthopedic.

Q. I think my son has flat foot, how to tell for sure? I didn't notice it before, he is 3 years old now and all shoes hurt him. Does it mean he has flat foot? what else can it be?

A. Pes planus (flat foot) is not a rare condition in toddlers, and may resolves spontaneously as the child grows. It is diagnosed clinically, i.e. by a doctor such as pediatrician or pediatric orthopedic surgeon, and radiographs are not universally indicated

More discussions about flatfoot
References in periodicals archive ?
Patients with rigid flat feet or flexible flat feet with shortened Achilles tendon usually begin to complain of discomfort with activity in the second or third decade of life.
We carried out this study with the aim of determining the concordance between Clark's angle and the Chippaux-Smirak index, and determining the validity of Clarke's angle using the Chippaux-Smirak index as a reference for the diagnosis of flat feet.
Previous literature found a significant difference in CoP course and plantar pressure distribution between individuals with normal and flat feet during standing posture, walking and running (6-8, 10, 12, 13).
Based on these results, medical insoles used in the shoes of the people with flat feet, Ground reaction force a change that results in pressure on the legs and upper members in physical activity is also a little change.
Aside from flat feet, other foot conditions affecting children include intoeing, where both feet point inward when walking; knock knees, where the knees overlap if the child is instructed to stand up straight; and Hallux valgus, or the inward deviation of the big toe.
However in flat feet subjects the foot contact area was higher for cuboid bone (12.5 [+ or -] 2.4%), and for navicular bone (19.5 [+ or -] 1.3%).
Although there is no cure for flat feet as such, there are things your mother can do to help limit the discomfort and reduce the symptoms somewhat.
Whatever you do, don't dismiss flat feet as "no big deal"--damage to your knees can interfere with your ability to maintain an active, independent lifestyle.
We may conclude that a) arch index is a better parameter than clinical observation in the evaluation of the deformity, b) in our experience external tibial torsion also was associated with flexible paediatric flat feet, c) hind foot rotational mal-alignment (high talar spin) was associated with severity of collapse, d) correlation of tibial torsion and severity of flat foot was statistically more significant than FBA e) the mal-alignment makes these deformities more complex and less responsive to conservative treatment.
There is a high arched foot--it is the opposite of flat feet. It is much less common than flat feet and the cause may be neurological, orthopedic or neuromuscular.
However, these shoes may not provide enough stability for those with flat feet.
Teachers often fall back on the traditional view that hard work is the answer for everything from flat feet to poor turnout.