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Thurstan Holland Sign
The Thurstan Holland sign or fragment, also known as the shiny corner sign, is the small metaphyseal triangular portion of bone carried with the physis in type II and IV Salter–Harris fracture A Salter–Harris fracture is a fracture that involves the epiphyseal plate (growth plate) of a bone, specifically the zone of provisional calcification. It is thus a form of child bone fracture. It is a common injury found in children, occurring ...s. The sign was named after the Liverpool pioneer in Radiology, Dr Charles Thurstan Holland (1863–1941).RadioGraphics 1995: Vol 15, pp. 481-488 /pubs.rsna.org/doi/pdf/10.1148/radiographics.15.2.7761652 Radiologic History Exhibit" ollandalso described the bony fragment seen with epiphyseal fractures; it was later realized that this triangular, metaphyseal fragment, known as the corner sign or Holland fragment, was the hallmark of the Salter-Harris type II epiphyseal fracture." References {{Orthopedics-stub Musculoskeletal radiographic si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metaphysis
The metaphysis is the neck portion of a long bone between the epiphysis and the diaphysis. It contains the growth plate, the part of the bone that grows during childhood, and as it grows it ossifies near the diaphysis and the epiphyses. The metaphysis contains a diverse population of cells including mesenchymal stem cells, which give rise to bone and fat cells, as well as hematopoietic stem cells which give rise to a variety of blood cells as well as bone-destroying cells called osteoclasts. Thus the metaphysis contains a highly metabolic set of tissues including trabecular (spongy) bone, blood vessels , as well as Marrow Adipose Tissue (MAT). The metaphysis may be divided anatomically into three components based on tissue content: a cartilaginous component (epiphyseal plate), a bony component (metaphysis) and a fibrous component surrounding the periphery of the plate. The growth plate synchronizes chondrogenesis with osteogenesis or interstitial cartilage growth with both ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Physis
Fusis, Phusis or Physis (; grc, φύσις ) is a Greek philosophical, theological, and scientific term, usually translated into English—according to its Latin translation "natura"—as "nature". The term originated in ancient Greek philosophy, and was later used in Christian theology and Western philosophy. In pre-Socratic usage, ''physis'' was contrasted with , , "law, human convention". Another opposition, particularly well-known from the works of Aristotle, is that of ''physis'' and ''techne'' – in this case, what is produced and what is artificial are distinguished from beings that arise spontaneously from their own essence, as do agents such as humans. Further, since Aristotle the ''physical'' (the subject matter of ''physics'', properly "natural things") has been juxtaposed to the ''metaphysical''. Linguistics The Greek word ''physis'' can be considered the equivalent of the Latin ''natura''. The abstract term physis is derived from the verb ''phyesthai/phynai'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salter–Harris Fracture
A Salter–Harris fracture is a fracture that involves the epiphyseal plate (growth plate) of a bone, specifically the zone of provisional calcification. 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. This type of fracture and its classification system is named for Robert B. Salter and William H. Harris who created and published this classification system in the ''Journal of Bone and Joint Surgery'' in 1963. Types There are nine types of Salter–Harris fractures; types I to V as described by Robert B Salter and W Robert Harris in 1963, and the rarer types VI to IX which have been added subsequently: * Type I – transverse fracture through the growth plate (also referred to as the "physis"): 6% incidence * Type II – A fracture through the growth plate and the metaphysis, sparing the epiphysis: 75% incidence, takes approximately 12-90 weeks or more in the spine to heal. * Type III – A f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Thurstan Holland
Charles Thurstan Holland (1863–1941) was a general practitioner in Liverpool who was best known by his pioneering research in the field of Radiology.Charles Allen Du Val - His life and worksCharles Thurstan Holland/ref> The Thurstan Holland sign is named after him.RadioGraphics 1995: Vol 15, pp. 481-48Radiologic History Exhibit"[Holland] also described the bony fragment seen with epiphyseal fractures; it was later realized that this triangular, metaphyseal fragment, known as the corner sign or Holland fragment, was the hallmark of the Salter-Harris type II epiphyseal fracture." Life Charles Thurstan Holland was born in March 1863 at Bridgwater, Somerset to William Thomas Holland and his wife Florence Holland (née Florence Du Val), the second daughter of painter Charles Allen Duval, Charles Allen Du Val. He studied medicine at the University College in London, qualifying in 1888. From October 1896 to 1904 he was honorary radiologist to the Royal Liverpool Hospital and from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
