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The severity of open fractures can vary. For diagnosing and classifying open fractures, Gustilo-Anderson open fracture classification is the most commonly used method. [2] This classification system can also be used to guide treatment, and to predict clinical outcomes.
However, Type III fractures occur in 60% of all the open fracture cases. Infection of the Type III fractures is observed in 10% to 50% of the time. Therefore, in 1984, Gustilo subclassified Type III fractures into A, B, and C with the aim of guiding the treatment of open fractures, communication and research, and to predict outcomes.
This classification system was developed by Harald Tscherne and Hans-Jörg Oestern in 1982 at the Hannover Medical School (Hanover, Germany) to classify both open and closed fractures. This classification system is based on the physiological concept that the higher the kinetic energy imparted on the bone, the higher the kinetic energy imparted ...
Snell & Wilcox SW2 and SW4 "Zone Plate" Test Chart (also referred to as Snell & Wilcox Test Pattern) were TV test cards introduced in the 1990s and used with NTSC, PAL and SDTV systems. [1] Popular versions of the test charts were made available on Laserdisc and DVD-Video, allowing home users and professionals to test and calibrate their equipment.
Light guide LEDs using plastic light guides on a network switch The technology was rendered obsolete by the development of light-emitting diodes (LED) in the 1970s, though lightguide tubes are still used in electronics manufacturing, in situations where it is difficult to place an LED in the appropriate physical location on a display or bezel.
Transverse comminuted fracture of the fibula above the level of the syndesmosis; Pronation-External rotation: Medial malleolus transverse fracture or disruption of deltoid ligament; Anterior tibiofibular ligament disruption; Lateral short oblique or spiral fracture of fibula (anterosuperior to posteroinferior) above the level of the joint
A Salter–Harris fracture is a fracture that involves the epiphyseal plate (growth plate) of a bone, specifically the zone of provisional calcification. [2] It is thus a form of child bone fracture. It is a common injury found in children, occurring in 15% of childhood long bone fractures. [3]
In terms of fracture type, isolated malleolar fractures are most common (two-thirds of fractures); bimalleolar fractures occur in roughly 25% of patients while trimalleolar fractures occur in 5-10%. [10] Open fractures are rare, compromising 2% of all ankle fractures. [21] In children, ankle fractures occur in about 1 per 1000 per year. [3]