title: [Quantitative trauma mechanics in pelvic fracture].
abstract: Quasistatic loading of the isolated pelvis and of the pelvis in situ is reported; dynamic loading with an impactor and on 90 degrees car/car side impact are then considered. The isolated pelvis was loaded laterally at the ala of the ilium and the pelvis in situ in the anterior-posterior direction in the area of the symphysis with universal dynamometer; the loading profile was a rigid disk 150 mm in diameter. Some dynamic tests were performed with an impactor with rigid disk 80 mm in diameter as impact surface; the impact was applied against the trochanter major area at a velocity of 30-35 km/h. Otherwise, the pelvic area was stressed by impact through the intrusion of the car side or by impaction of the pelvis against a rigid wall. In the tests conducted with isolated pelves, forces of 850-4850 N were measured; pelvic fractures were observed, specifically fractures of the acetabular margin, pubic bone, and ischium, and comminuted fractures of the symphysis and the iliosacral. In the impactor tests, forces of 6.5-11 kN were enough to cause, pelvic fracture except in one case, and fractures of the femoral neck were found in some cases in addition. With quasistatic anterior-posterior loading of the pelvis in situ, forces of 4,700-10,000 N were measured in cases in which fractures were found.
authors.affiliation: Institut für Rechtsmedizin, Universität Heidelberg.
authors.forename: G
authors.initials: G
authors.lastname: Fleischer
authors.forename: D
authors.initials: D
authors.lastname: Kallieris
authors.forename: R
authors.initials: R
authors.lastname: Käppner
authors.forename: G
authors.initials: G
authors.lastname: Schmidt
mesh_terms: D000063:Accidents, Traffic; D000077:Acetabulum / Q000293:injuries / Q000503:physiopathology; D000328:Adult; D000368:Aged; D001696:Biomechanical Phenomena; D005260:Female; D050723:Fractures, Bone / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010384:Pelvic Bones / Q000293:injuries* / Q000503:physiopathology; D016474:Weight-Bearing / Q000502:physiology*
vernacular_title: Zur quantitativen Traumatomechanik der Beckenfraktur.