Fracture, torsion
Fracture, torsion: A fracture, also called a spiral fracture, in which a bone has been twisted apart.
A fracture is any break in the bone or cartilage. It usually is a result of trauma but can be due to an acquired disease of bone such as osteoporosis or abnormal formation of bone in a congenital disease of bone such as osteogenesis imperfecta (“brittle bone disease”).
Fractures are classified by their character and location. Examples of classification include “spiral fracture of the femur,” “greenstick fracture of the radius,” “impacted fracture of the humerus,” “linear fracture of the ulna,” “oblique fracture of the metatarsal,” “compression fracture of the vertebrae,” and “depressed fracture of the skull.” A “comminuted fracture” is a fracture in which bone is broken into a number of pieces, as distinguished from a “compound fracture” in which the bone sticks through the skin.
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Fracture, torus: A fracture in which one side of a bone bends but does not actually break. Torus fractures normally heal on their own within a month, with rest and disuse. Also known as incomplete fracture or buckle fracture.
- Fracture, transverse
Fracture, transverse: A fracture in which the break is across a bone, at a right angle to the long axis of the bone.
- Fractured hip
Fractured hip: Broken bone in the hip, a key health problem among the elderly, usually due to a fall or other kind of trauma involving direct impact to the hip bone which has been weakened by osteoporosis. The part of the hip most often broken is the greater trochanter of the femur. In older people […]
- Fragile site
Fragile site: A point on a chromosome where gaps and breaks tend to occur, which can be passed on from one generation to another.
- Fragile X chromosome
Fragile X chromosome: An X chromosome with a heritable fragile site associated with a frequent form of mental retardation — the fragile X syndrome. The fragile X chromosome was first sighted by Dr. Herbert A. Lubs in 1969 who termed it the “marker X.”. The fragile X is also called FRAXA. It was the first […]