Download Clinical Epidemiology of Orthopedic Trauma by Yingze Zhang PDF

By Yingze Zhang

"While many fracture books are presently on hand in a variety of languages, this ebook may possibly up to now be at the of the biggest collections of medical epidemiological records of bone fracture classifications on hand. it really is in line with greater than 25 years of expertise in a wide trauma middle and comprises particular facets of therapy and care in relation to released or ongoing examine by means of the professional authors. therefore, a Read more...

summary: "While many fracture books are presently on hand in quite a few languages, this e-book may perhaps to date be at the of the most important collections of scientific epidemiological facts of bone fracture classifications to be had. it's in line with greater than 25 years of expertise in a wide trauma middle and accommodates distinct points of therapy and care with regards to released or ongoing learn through the professional authors. hence, an intensive studying presents perception into the continuing improvement of recent developments in trauma care"--Provided via writer

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Extra resources for Clinical Epidemiology of Orthopedic Trauma

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5 Segment distribution of 2827 humeral fractures in children. 4). The humeral head has a hemispheric shape, which has a superior, medial, and posterior aspect. The narrow groove separating the head from the tubercles is the anatomic neck, where fractures rarely occur but there is a high incidence of avascular necrosis due to disruption of the blood supply to the main head fragment. The narrowing below the tubercles, called the surgical neck, is the junction of the two tubercles with the cylindric shaft.

3 a, b a Age distribution of 6039 patients with humeral fractures. b Age and sex distribution of 6039 patients with humeral fractures. 09% Fig. 4 Segment distribution of 3249 humeral fractures in adults based on AO classification. 39% Distal Fig. 5 Segment distribution of 2827 humeral fractures in children. 4). The humeral head has a hemispheric shape, which has a superior, medial, and posterior aspect. The narrow groove separating the head from the tubercles is the anatomic neck, where fractures rarely occur but there is a high incidence of avascular necrosis due to disruption of the blood supply to the main head fragment.

N Injury Mechanism There are several mechanisms that result in humeral shaft fractures: l direct force is the most common mechanism of injury, such as in a direct blow, a compression force, or a gunshot, all of which usually produce transverse, comminuted, or open fractures l indirect mechanisms involve a fall where the hand or elbow touches the ground. The fall usually involves a twisting motion to the remainder of the body, or the attached muscles may contract asymmetrically, leading to a greater incidence of spiral or oblique fractures l spiral injuries typically occur in the junction of the middle, distal third of the humeral shaft, caused by military training or athletic activities such as throwing or arm wrestling.

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