die-punch fracture
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a die-punch fracture is a depression fracture of the lunate fossa of the
distal radius.
it is the result of a transverse load through the lunate.
the radiographic findings can be very subtle.
in many cases there is also a subtle proximal displacement of lunate,
seen as a break
in carpal arc i.
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on the left a typical die-punch fracture.
the blue arrow indicates the depressed fragment of the lunate fossa.
notice the articular step-off.
the yellow arrow indicates a subtle fracture of the radial styloid process.
there is no disruption of carpal arc i.
notice that you can easily overlook such a fracture.
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on the left two 3d-reconstructions of the same fracture as above.
chauffeur';s fracture
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an isolated fracture of the radial styloid process is also called a
hutchinson';s or chauffeur';s fracture.
displacement of the fragment is uncommon.
there can be associated injury to the scapholunate ligament.
in most cases a fracture of the radial styloid process is part of
a comminutive intraarticular fracture.
epiphysiolysis fracture(骨骺分离骨折)
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these are usually salter harris type ii epiphysiolysis fractures.
restorage of the anatomical situation is necessary to prevent growth disturbances.
redislocation is common after closed reduction.
in many cases they need percutaneous pinning.
barton';s fracture(巴尔通(氏)骨折)
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volar-type barton';s is a fracture-dislocation of the volar rim of the radius.
this type is the most common.
dorsal-type barton';s is a fracture-dislocation of the dorsal rim of the radius.
dislocation of the radiocarpal joint is the hallmark of barton';s fractures.
these are shear type fractures of the distal articular surface of the radius with translation
of the distal radial fragment and the carpus.
these fractures have a great tendency for redislocation and malunion.
they usually require operative treatment.
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以上,是偶在国外放射学站点上找到的,偶暂时没有找到其中一些骨折的中文的合适的术语。
请各位老师赐教。
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