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Pes Cavus
Pes cavus, also known as high arch, is a human foot type in which the sole of the foot is distinctly hollow when bearing weight. That is, there is a fixed plantar flexion of the foot. A high arch is the opposite of a flat foot and is somewhat less common. Signs and symptoms Pain and disability As with certain cases of flat feet, high arches may be painful due to metatarsal compression; however, high arches— particularly if they are flexible or properly cared-for—may be an asymptomatic condition. People with pes cavus sometimes—though not always—have difficulty finding shoes that fit and may require support in their shoes. Children with high arches who have difficulty walking may wear specially-designed insoles, which are available in various sizes and can be made to order. Individuals with pes cavus frequently report foot pain, which can lead to a significant limitation in function. The range of complaints reported in the literature include metatarsalgia, pain under th ...
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Calcaneal Pitch
The calcaneal pitch is an angle used mainly in the diagnosis and severity grading of flat feet and pes cavus. Measurement Calcaneal pitch is an angle of the calcaneus and the inferior aspect of the foot, with different sources giving different reference points. The first line making up the angle is defined as either: *The ''calcaneal inclination axis'', extending from the calcaneus by the inferior portion of the calcaneocuboid joint to the inferior border of the calcaneus. *Tangential to the inferior distal border of the calcaneus. The second line is defined as extending from either of the two above to either of the following: *The inferior border of the head of the fifth metatarsal bone. *The inferior aspect of the medial sesamoid bone In anatomy, a sesamoid bone () is a bone embedded within a tendon or a muscle. Its name is derived from the Arabic word for ' sesame seed', indicating the small size of most sesamoids. Often, these bones form in response to strain, or can be pre ...
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Calcaneal Pitch
The calcaneal pitch is an angle used mainly in the diagnosis and severity grading of flat feet and pes cavus. Measurement Calcaneal pitch is an angle of the calcaneus and the inferior aspect of the foot, with different sources giving different reference points. The first line making up the angle is defined as either: *The ''calcaneal inclination axis'', extending from the calcaneus by the inferior portion of the calcaneocuboid joint to the inferior border of the calcaneus. *Tangential to the inferior distal border of the calcaneus. The second line is defined as extending from either of the two above to either of the following: *The inferior border of the head of the fifth metatarsal bone. *The inferior aspect of the medial sesamoid bone In anatomy, a sesamoid bone () is a bone embedded within a tendon or a muscle. Its name is derived from the Arabic word for ' sesame seed', indicating the small size of most sesamoids. Often, these bones form in response to strain, or can be pre ...
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Medical Genetics
Medical genetics is the branch tics in that human genetics is a field of scientific research that may or may not apply to medicine, while medical genetics refers to the application of genetics to medical care. For example, research on the causes and inheritance of genetic disorders would be considered within both human genetics and medical genetics, while the diagnosis, management, and counselling people with genetic disorders would be considered part of medical genetics. In contrast, the study of typically non-medical phenotypes such as the genetics of eye color would be considered part of human genetics, but not necessarily relevant to medical genetics (except in situations such as albinism). ''Genetic medicine'' is a newer term for medical genetics and incorporates areas such as gene therapy, personalized medicine, and the rapidly emerging new medical specialty, predictive medicine. Scope Medical genetics encompasses many different areas, including clinical practice of ...
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Rocker Bottom Foot
Unlike the flexible flat foot that is commonly encountered in young children, congenital vertical talus is characterized by presence of a very rigid foot deformity. The foot deformity in congenital vertical talus consists of various components, namely a prominent calcaneus caused by the ankle equines or plantar flexion, a convex and rounded sole of the foot caused by prominence of the head of the talus, and a dorsiflexion and abduction of the forefoot and midfoot on the hindfoot. It gets its name from the foot's resemblance to the bottom of a rocking chair. There are two subcategories of congenital vertical talus namely idiopathic or isolated type and non-idiopathic type which may be seen in association with arthrogryposis multiplex congenital, genetic syndromes and other neuromuscular disorders. It can be associated with Edwards' syndrome (trisomy 18), Patau syndrome (trisomy 13), Trisomy 9 and mutation in the gene HOXD10 Homeobox D10, also known as HOXD10, is a protein which in ...
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Foot Binding
Foot binding, or footbinding, was the Chinese custom of breaking and tightly binding the feet of young girls in order to change their shape and size. Feet altered by footbinding were known as lotus feet, and the shoes made for these feet were known as lotus shoes. In late imperial China, bound feet were considered a status symbol and a mark of feminine beauty. However, footbinding was a painful practice that limited the mobility of women and resulted in lifelong disabilities. The prevalence and practice of footbinding varied over time and by region and social class. The practice may have originated among court dancers during the Five Dynasties and Ten Kingdoms period in 10th-century China, and gradually became popular among the elite during the Song dynasty. Footbinding eventually spread to lower social classes by the Qing dynasty (1636–1912). Manchu emperors attempted to ban the practice in the 17th century, but failed. In some areas, footbinding raised marriage prospects. It ...
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En Pointe
Pointe technique ( ) is the part of classical ballet technique that concerns ''pointe work'', in which a ballet dancer supports all body weight on the tips of fully extended feet within pointe shoes. A dancer is said to be ''en pointe'' () when the dancer's body is supported in this manner, and a fully extended vertical foot is said to be ''en pointe'' when touching the floor, even when not bearing weight. Pointe technique resulted from a desire for female dancers to appear weightless and sylph-like. Although both men and women are capable of pointe work, it is most often performed by women. Extensive training and practice are required to develop the strength and technique needed for pointe work. Typically, dance teachers consider factors such as age, experience, strength and alignment when deciding whether to allow a dancer to begin pointe work. Technique Pointe technique encompasses both the mechanical and artistic aspects of pointe work. In particular, it is concerned wi ...
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Foot Type
The foot ( : feet) is an anatomical structure found in many vertebrates. It is the terminal portion of a limb which bears weight and allows locomotion. In many animals with feet, the foot is a separate organ at the terminal part of the leg made up of one or more segments or bones, generally including claws or nails. Etymology The word "foot", in the sense of meaning the "terminal part of the leg of a vertebrate animal" comes from "Old English fot "foot," from Proto-Germanic *fot (source also of Old Frisian fot, Old Saxon fot, Old Norse fotr, Danish fod, Swedish fot, Dutch voet, Old High German fuoz, German Fuß, Gothic fotus "foot"), from PIE root *ped- "foot". The "plural form feet is an instance of i-mutation." Structure The human foot is a strong and complex mechanical structure containing 26 bones, 33 joints (20 of which are actively articulated), and more than a hundred muscles, tendons, and ligaments.Podiatry Channel, ''Anatomy of the foot and ankle'' The joints of the ...
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Arches Of The Foot
The arches of the foot, formed by the tarsus (skeleton), tarsal and metatarsal bones, strengthened by ligaments and tendons, allow the foot to support the weight of the body in the erect posture with the least weight. They are categorized as longitudinal and transverse arches. Structure Longitudinal arches The longitudinal arches of the foot can be divided into medial and lateral arches. Medial arch The medial arch is higher than the lateral longitudinal arch. It is made up by the calcaneus, the talus bone, talus, the navicular, the three Cuneiform (anatomy), cuneiforms (medial, intermediate, and lateral), and the first, second, and third metatarsals. Its summit is at the superior articular surface of the talus, and its two extremities or piers, on which it rests in standing, are the tuberosity on the plantar surface of the calcaneus posteriorly and the heads of the first, second, and third metatarsal bones anteriorly. The chief characteristic of this arch is its elasticity, ...
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Poliomyelitis
Poliomyelitis, commonly shortened to polio, is an infectious disease caused by the poliovirus. Approximately 70% of cases are asymptomatic; mild symptoms which can occur include sore throat and fever; in a proportion of cases more severe symptoms develop such as headache, neck stiffness, and paresthesia. These symptoms usually pass within one or two weeks. A less common symptom is permanent paralysis, and possible death in extreme cases.. Years after recovery, post-polio syndrome may occur, with a slow development of muscle weakness similar to that which the person had during the initial infection. Polio occurs naturally only in humans. It is highly infectious, and is spread from person to person either through fecal-oral transmission (e.g. poor hygiene, or by ingestion of food or water contaminated by human feces), or via the oral-oral route. Those who are infected may spread the disease for up to six weeks even if no symptoms are present. The disease may be diagnosed by ...
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Triceps Surae Muscle
The triceps surae consists of two muscles located at the calf – the two-headed gastrocnemius and the soleus. These muscles both insert into the calcaneus, the bone of the heel of the human foot, and form the major part of the muscle of the posterior leg, commonly known as the calf muscle. Structure The triceps surae is connected to the foot through the Achilles tendon, and has 3 heads deriving from the 2 major masses of muscle. * The superficial portion (the gastrocnemius) gives off 2 heads attaching to the base of the femur directly above the knee. * The deep (profundus) mass of muscle (the soleus) forms the remaining head which attaches to the superior posterior area of the tibia. The triceps surae is innervated by the tibial nerve, specifically, nerve roots L5–S2. Function Contraction of the triceps surae induce plantar flexion (sagittal plane) and stabilization of the ankle complex in the transverse plane. Functional activities include primarily movement in the sag ...
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Os Peroneum
An accessory bone or supernumerary bone is a bone that is not normally present in the body, but can be found as a variant in a significant number of people. It poses a risk of being misdiagnosed as bone fractures on radiography. Wrist and hand Os ulnostyloideum The ''os ulnostyloideum'' is an ulnar styloid process that is not fused to the rest of the ulna bone.R. O'Rahilly. ''A survey of carpal and tarsal anomalies.'' J Bone Joint Surg Am. 1953; 35: 626–642 On X-rays, an ''os ulnostyloideum'' is sometimes mistaken for an avulsion fracture of the styloid process. However, the distinction between these is extremely difficult.T.E. Keats, M.W. Anderson. ''Atlas of normal roentgen variants that may simulate disease''. 7th edition, Mosby Inc. 2001 It is alleged that the os ulnostyloideum has a close relationship with or is synonymous with the os triquetrum secundarium. Os centrale The ''os carpi centrale'' (also briefly ''os centrale'') is, where present, located on the dor ...
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First Metatarsal Bone
The first metatarsal bone is the bone in the foot just behind the big toe. The first metatarsal bone is the shortest of the metatarsal bones and by far the thickest and strongest of them. Like the four other metatarsals, it can be divided into three parts: base, body and head. The base is the part closest to the ankle and the head is closest to the big toe. The narrowed part in the middle is referred to as the body of the bone. The bone is somewhat flattened, giving it two sides: the plantar (towards the sole of the foot) and the dorsal side (the area facing upwards while standing). The base presents, as a rule, no articular facets (joint surfaces) on its sides, but occasionally on the lateral side there is an oval facet, by which it articulates with the second metatarsal. On the lateral part of the plantar surface there is a rough oval prominence, or tuberosity, for the insertion of the tendon of the fibularis longus. The first metatarsal articulates (forms joints) with the medi ...
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