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Fracture Classification . Elaina Turner August 2 nd 2005 . What are the 3 types of open fractures? . Type I: sharp end of fractured bone penetrates overlying soft tissue Type II: foreign object penetrates soft tissue and then breaks bone
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Fracture Classification Elaina Turner August 2nd 2005
What are the 3 types of open fractures? • Type I: sharp end of fractured bone penetrates overlying soft tissue • Type II: foreign object penetrates soft tissue and then breaks bone • Type III: type II with loss of soft tissue (or might be there but is necrotic).
Which type is most heavily contaminated? • Type III
Which type would you expect to have most severely impaired healing? • Type III
Define transverse fracture. • The angle of the fracture line to a perpendicular to the long axis of the bone is less than 30 degrees
Define oblique fracture. • The angle is greater than 30 degrees
Define comminuted fracture. • More than 2 fragments
Define avulsion fracture. • Or apophyseal – pulled by tendon or ligament; fracture of traction physis
Define butterfly fragment. • A broad triangular fragment that is commonly present in comminuted fractures of the diaphysis
What is a Salter-Harris fracture? • an epiphyseal fracture in young animals that involves the epiphyseal growth plate.
Describe the location of the fracture in each of the 5 types of Salter-Harris fractures. • Type I – physeal • Type II – metaphyseal and physeal • Type III – physeal and epiphyseal • Type IV – metaphyseal, physeal, epiphyseal • Type V – compression fracture of physis
Which are articular fractures? • III and IV are intra-articular fractures and lead to secondary osteoarthritis
What is the prognosis for continued growth at the physis for each type? • Prognosis decreases for normal limb with increase in classification number • Premature closure of part or all of physis may occur, especially with Salter-Harris V.