Der Orthopäde
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A total of 1566 patients with fractures of the pelvis were treated at the Department of Traumatology at the Hannover Medical School between 1972 and 1990. Of these, 1350 patients had fractures of the pelvic ring, 216 isolated acetabulum fractures, and 398 combinations of pelvic ring fractures and acetabular involvement. Of these patients, 718 were admitted with severe polytrauma. ⋯ In unstable pelvic ring fractures (Tile C), external fixation led to a significantly higher rate of posterior dislocations (over 1 cm) than did internal fixation. In these situations a combined posterior and anterior internal fixation procedure improved the result compared to posterior internal stabilizations alone. As a result, internal stabilization using a standardized technique for every fracture location is recommended for all unstable pelvic ring fractures.
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Sacral fractures are rare injuries that are often neglected because of the general severity of the patient's injuries. They are typical injuries in patients with polytraumata. A "hidden" injury, they are often diagnosed late or are even missed. ⋯ Additional risk indicators for neurological impairment are avulsion fractures of the sacrum, comminuted and bilateral fracture lines. The fracture classification should thus be modified. Our own experience with operative therapy for sacral fractures (open revision of the sacral plexus together with internal stabilization of the fracture) is still limited, but based on the experience presented, further development of the treatment protocol for sacrum fractures should be considered.
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Pelvic girdle injuries leading to anterior and posterior disruption are rarely seen in children. External fixation is useful to reduce and stabilize the pelvis in order to control massive blood loss due to severe venous bleeding. The anterior tension band element of the external fixator can successfully maintain reduction of the pelvic girdle. ⋯ Leg length discrepancy is to be expected when the hemipelvis is displaced. Seven cases of this rare injury in children are presented together with the late outcome. Treatment modalities are discussed.
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The antishock pelvic clamp provides direct reduction and compression of unstable posterior pelvic ring disruptions. This is effective in preventing excessive blood loss, which is common in these fractures. Comparable to a carpenter's C-clamp, this device is applied in less than 10 min and exerts transverse compression directly over the iliosacral region, reducing the displaced sacral fractures or SI joint diastasis. ⋯ On 10 cadaveric pelvic specimens the bone yield under compression with the pelvic clamp ranged from 135 N to 685 N relative to the mechanical quality of the bone. This is sufficient to stabilize the posterior ring during further manipulation of the patient in the early phase. Details of the application technique and our clinical experience with the pelvic clamp in the first 17 patients are discussed.
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On the occasion of the 1990 Conference of the German Society for Accident Surgery (DGU) in Berlin, a working group "Pelvis" of the DGU and the AO International was established on the initiative of H. Tscherne. It is the objective of this working group to formulate guidelines for the diagnosis and treatment of pelvic girdle fractures, within the framework of a prospective multicentre study based on comparable results. ⋯ One hundred and eighty-two patients (39.6%) had an isolated pelvic injury, while 278 (60.4%) sustained multiple injuries. The average polytrauma score for all 460 subjects was 23.2 points. The surgical management was shown to depend on the severity of the fracture.